Run policy GUIs in a single JAR

Create gui-server module serving clamp and apex GUIs using Spring
Add Spring filter to pass client SSL cert to clamp backend
Remove nginx from docker image
Add logback.xml to docker image
Add helper scripts for running gui-server jar and docker

Issue-ID: POLICY-3638
Signed-off-by: danielhanrahan <daniel.hanrahan@est.tech>
Change-Id: Ie857f5755015c522b8cf781de255f7a1d567e263
diff --git a/README.md b/README.md
index 575ad31..26487e9 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Summary
 
 Copyright 2017-2018 AT&T Intellectual Property. All rights reserved.
-Copyright (C) 2021 Nordix Foundation.
+Copyright (C) 2021-2022 Nordix Foundation.
 This file is licensed under the CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE
 Full license text at https://creativecommons.org/licenses/by/4.0/legalcode
 
@@ -14,8 +14,8 @@
 
 Maven produces a single docker image containing the policy GUIs.
 These are exposed on the same port (2443) using different URLs:
-- Apex Policy Editor: https://localhost:2443/apex-editor
-- CLAMP Designer UI: https://localhost:2443/clamp
+- Apex Policy Editor: https://localhost:2443/apex-editor/
+- CLAMP Designer UI: https://localhost:2443/clamp/
 
 ## Building
 You can use the following command to build the policy-gui docker image:
@@ -23,18 +23,16 @@
 mvn clean install -P docker
 ```
 
-## Deployment
-Currently, the policy-gui docker image can be deployed without configuration.
-For the GUI container to start correctly, the CLAMP backend
-`policy-clamp-backend` should be started first.
+## Running
+The gui-server module contains a server that hosts the GUIs.
+There are helper scripts for running the gui-server JAR and Docker image.
+They may be found under gui/gui-server/extra/bin-for-dev/
 
-For local testing, if the CLAMP backend is running on localhost port 8443,
-the policy-gui docker container can be started with:
-```
-docker run -p 2443:2443 --add-host policy-clamp-backend:host-gateway onap/policy-gui
-```
+These scripts assume the clamp backend is running at https://localhost:8443
 
 ## Client Credentials
+For integration with AAF, gui-server requests client SSL cert.
+
 A certificate must be added in the browser and is required to log in properly:
 
 [org.onap.clamp.p12 (from clamp master)](URL "https://gerrit.onap.org/r/gitweb?p=clamp.git;a=blob_plain;f=src/main/resources/clds/aaf/org.onap.clamp.p12;hb=refs/heads/master")
diff --git a/gui-server/extra/bin-for-dev/README.md b/gui-server/extra/bin-for-dev/README.md
new file mode 100644
index 0000000..b12bcff
--- /dev/null
+++ b/gui-server/extra/bin-for-dev/README.md
@@ -0,0 +1,10 @@
+# gui-server helper scripts
+This directory contains helper scripts for running gui-server.
+
+- start-gui-server-jar.sh starts the JAR.
+
+- start-gui-server-docker.sh starts the docker image.
+To ensure the latest development snapshot is run, first build the run `mvn clean install -P docker` from the gui repo.
+
+If you wish to test client cert authentication, you may import the certificate demo-clamp.keystore.p12 into your browser
+(password is 'changeit').
diff --git a/gui-server/extra/bin-for-dev/config/dev/application.yml b/gui-server/extra/bin-for-dev/config/dev/application.yml
new file mode 100644
index 0000000..efc2dcd
--- /dev/null
+++ b/gui-server/extra/bin-for-dev/config/dev/application.yml
@@ -0,0 +1,27 @@
+server:
+  port: 2443
+  ssl:
+    enabled: true
+    client-auth: want
+    key-store: file:demo-clamp-keystore.p12
+    key-store-password: changeit
+    trust-store: file:demo-clamp-truststore.jks
+    trust-store-password: changeit
+
+clamp:
+  # URL to the clamp backend
+  url: https://localhost:8443/
+  # Disabling SSL validation is useful for local testing, but should not be disabled in production.
+  disable-ssl-validation: true
+  # Disabling SSL hostname check is needed if cert name does not match hostname.
+  disable-ssl-hostname-check: true
+
+apex-editor:
+  upload-url:
+  upload-userid:
+
+management:
+  endpoints:
+    web:
+      exposure:
+        include: health, metrics, prometheus
diff --git a/gui-server/extra/bin-for-dev/config/dev/logback.xml b/gui-server/extra/bin-for-dev/config/dev/logback.xml
new file mode 100644
index 0000000..a8f8357
--- /dev/null
+++ b/gui-server/extra/bin-for-dev/config/dev/logback.xml
@@ -0,0 +1,130 @@
+<!--
+  ============LICENSE_START=======================================================
+  policy-gui
+  ================================================================================
+  Copyright (C) 2021-2022 Nordix Foundation.
+  ================================================================================
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  ============LICENSE_END=========================================================
+  -->
+
+<configuration scan="true" scanPeriod="30 seconds" debug="false">
+
+    <property name="logDir" value="${POLICY_LOGS}" />
+
+    <property name="errorLog" value="error" />
+    <property name="debugLog" value="debug" />
+    <property name="networkLog" value="network" />
+
+    <property name="debugPattern"
+              value="[%d{yyyy-MM-dd'T'HH:mm:ss.SSS+00:00, UTC}|%level|%logger{0}|%thread] %msg%n" />
+    <property name="errorPattern" value="${debugPattern}" />
+    <property name="networkPattern" value="[%d{yyyy-MM-dd'T'HH:mm:ss.SSS+00:00, UTC}|%t]%m%n" />
+
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
+            <level>INFO</level>
+        </filter>
+        <encoder>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{1024} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <appender name="ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>${logDir}/${errorLog}.log</file>
+        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
+            <fileNamePattern>${logDir}/${errorLog}.%d{yyyy-MM-dd}.%i.log.zip
+            </fileNamePattern>
+            <maxFileSize>50MB</maxFileSize>
+            <maxHistory>30</maxHistory>
+            <totalSizeCap>10GB</totalSizeCap>
+        </rollingPolicy>
+        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
+            <level>WARN</level>
+        </filter>
+        <encoder>
+            <pattern>${errorPattern}</pattern>
+        </encoder>
+    </appender>
+
+    <appender name="asyncError" class="ch.qos.logback.classic.AsyncAppender">
+        <appender-ref ref="ERROR" />
+    </appender>
+
+    <appender name="DEBUG" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>${logDir}/${debugLog}.log</file>
+        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
+            <fileNamePattern>${logDir}/${debugLog}.%d{yyyy-MM-dd}.%i.log.zip
+            </fileNamePattern>
+            <maxFileSize>50MB</maxFileSize>
+            <maxHistory>30</maxHistory>
+            <totalSizeCap>10GB</totalSizeCap>
+        </rollingPolicy>
+        <encoder>
+            <pattern>${debugPattern}</pattern>
+        </encoder>
+    </appender>
+
+    <appender name="asyncDebug" class="ch.qos.logback.classic.AsyncAppender">
+        <appender-ref ref="DEBUG" />
+    </appender>
+
+    <appender name="NETWORK" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>${logDir}/${networkLog}.log</file>
+        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
+            <fileNamePattern>${logDir}/${networkLog}.%d{yyyy-MM-dd}.%i.log.zip
+            </fileNamePattern>
+            <maxFileSize>50MB</maxFileSize>
+            <maxHistory>30</maxHistory>
+            <totalSizeCap>10GB</totalSizeCap>
+        </rollingPolicy>
+        <encoder>
+            <pattern>${networkPattern}</pattern>
+        </encoder>
+    </appender>
+
+    <appender name="asyncNetwork" class="ch.qos.logback.classic.AsyncAppender">
+        <appender-ref ref="NETWORK" />
+    </appender>
+
+    <logger name="network" level="INFO" additivity="false">
+        <appender-ref ref="asyncNetwork" />
+    </logger>
+
+    <logger name="org.apache" level="INFO">
+        <appender-ref ref="DEBUG" />
+    </logger>
+
+    <!-- Spring related loggers -->
+    <logger name="org.springframework" level="INFO">
+        <appender-ref ref="DEBUG" />
+    </logger>
+
+    <!-- GUI related loggers -->
+    <logger name="org.onap.policy.gui" level="DEBUG">
+        <appender-ref ref="ERROR" />
+        <appender-ref ref="DEBUG" />
+    </logger>
+
+    <!-- logback internals logging -->
+    <logger name="ch.qos.logback.classic" level="INFO" />
+    <logger name="ch.qos.logback.core" level="INFO" />
+
+    <root level="DEBUG">
+        <appender-ref ref="asyncDebug" />
+        <appender-ref ref="asyncError" />
+        <appender-ref ref="asyncNetwork" />
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>
diff --git a/gui-server/extra/bin-for-dev/demo-clamp-keystore.p12 b/gui-server/extra/bin-for-dev/demo-clamp-keystore.p12
new file mode 100644
index 0000000..e034eeb
--- /dev/null
+++ b/gui-server/extra/bin-for-dev/demo-clamp-keystore.p12
Binary files differ
diff --git a/gui-server/extra/bin-for-dev/demo-clamp-truststore.jks b/gui-server/extra/bin-for-dev/demo-clamp-truststore.jks
new file mode 100644
index 0000000..2af1adc
--- /dev/null
+++ b/gui-server/extra/bin-for-dev/demo-clamp-truststore.jks
Binary files differ
diff --git a/gui-server/extra/bin-for-dev/start-gui-server-docker.sh b/gui-server/extra/bin-for-dev/start-gui-server-docker.sh
new file mode 100755
index 0000000..78748cd
--- /dev/null
+++ b/gui-server/extra/bin-for-dev/start-gui-server-docker.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+#
+# ============LICENSE_START=======================================================
+#  Copyright (C) 2022 Nordix Foundation.
+# ================================================================================
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+# ============LICENSE_END=========================================================
+#
+SCRIPT_DIR=$(dirname "${BASH_SOURCE[0]}")
+KEYSTORE_PATH=$(realpath "$SCRIPT_DIR/demo-clamp-keystore.p12")
+TRUSTSTORE_PATH=$(realpath "$SCRIPT_DIR/demo-clamp-truststore.jks")
+LOGBACK_PATH=$(realpath "$SCRIPT_DIR/config/dev/logback.xml")
+
+# Note hostname 'policy-clamp-be' is mapped to host-gateway (i.e. host's localhost)
+docker run \
+  --publish 2443:2443 \
+  --add-host policy-clamp-be:host-gateway \
+  --env "CLAMP_URL=https://policy-clamp-be:8443" \
+  --env "CLAMP_DISABLE_SSL_VALIDATION=true" \
+  --env "SERVER_SSL_CLIENT_AUTH=want" \
+  --env "KEYSTORE_PASSWD=changeit" \
+  --env "TRUSTSTORE_PASSWD=changeit" \
+  --volume "$KEYSTORE_PATH:/opt/app/policy/gui/etc/mounted/policy-keystore" \
+  --volume "$TRUSTSTORE_PATH:/opt/app/policy/gui/etc/mounted/policy-truststore" \
+  --volume "$LOGBACK_PATH:/opt/app/policy/gui/etc/mounted/logback.xml" \
+  --rm \
+  onap/policy-gui:latest
diff --git a/gui-server/extra/bin-for-dev/start-gui-server-jar.sh b/gui-server/extra/bin-for-dev/start-gui-server-jar.sh
new file mode 100755
index 0000000..5484356
--- /dev/null
+++ b/gui-server/extra/bin-for-dev/start-gui-server-jar.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+#
+# ============LICENSE_START=======================================================
+#  Copyright (C) 2022 Nordix Foundation.
+# ================================================================================
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+# ============LICENSE_END=========================================================
+#
+# This script changes directory so that application.yml, keystore,
+# and truststore will be in current directory before running jar.
+SCRIPTDIR=$(dirname ${BASH_SOURCE[0]})
+pushd "$SCRIPTDIR" || exit
+java -Dspring.profiles.active=dev -jar ../../target/gui-server-*.jar
+popd || exit
diff --git a/gui-server/pom.xml b/gui-server/pom.xml
new file mode 100644
index 0000000..79c60d2
--- /dev/null
+++ b/gui-server/pom.xml
@@ -0,0 +1,152 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ============LICENSE_START=======================================================
+   Copyright (C) 2022 Nordix Foundation.
+  ================================================================================
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  SPDX-License-Identifier: Apache-2.0
+  ============LICENSE_END=========================================================
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <artifactId>policy-gui</artifactId>
+        <groupId>org.onap.policy.gui</groupId>
+        <version>2.2.1-SNAPSHOT</version>
+    </parent>
+    <artifactId>gui-server</artifactId>
+    <name>${project.artifactId}</name>
+    <description>Server for all the Policy GUI's.</description>
+
+    <properties>
+        <start-class>org.onap.policy.gui.server.GuiServerApplication</start-class>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpclient</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-collections4</artifactId>
+            <version>4.4</version>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.gui</groupId>
+            <artifactId>gui-clamp</artifactId>
+            <version>${project.version}</version>
+            <type>pom</type>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.policy.gui.editors</groupId>
+            <artifactId>gui-editor-apex</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <defaultGoal>install</defaultGoal>
+
+        <resources>
+            <resource>
+                <directory>${basedir}/src/main/resources</directory>
+                <filtering>true</filtering>
+                <includes>
+                    <include>**/application*.yml</include>
+                    <include>**/application*.yaml</include>
+                    <include>**/application*.properties</include>
+                </includes>
+            </resource>
+            <resource>
+                <directory>${basedir}/src/main/resources</directory>
+                <filtering>false</filtering>
+                <excludes>
+                    <exclude>**/application*.yml</exclude>
+                    <exclude>**/application*.yaml</exclude>
+                    <exclude>**/application*.properties</exclude>
+                </excludes>
+            </resource>
+        </resources>
+
+        <plugins>
+            <plugin>
+                <artifactId>maven-dependency-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>unpack-gui-html</id>
+                        <goals>
+                            <goal>unpack</goal>
+                        </goals>
+                        <phase>generate-resources</phase>
+                    </execution>
+                </executions>
+                <configuration>
+                    <artifactItems>
+                        <!-- copy static resources from clamp tar.gz into static/clamp/ -->
+                        <artifactItem>
+                            <groupId>org.onap.policy.gui</groupId>
+                            <artifactId>gui-clamp</artifactId>
+                            <version>${project.version}</version>
+                            <classifier>clamp-build</classifier>
+                            <type>tar.gz</type>
+                            <overWrite>true</overWrite>
+                            <outputDirectory>${project.build.directory}/classes/static</outputDirectory>
+                        </artifactItem>
+                        <!-- copy static resources from apex editor jar into static/apex-editor/ -->
+                        <artifactItem>
+                            <groupId>org.onap.policy.gui.editors</groupId>
+                            <artifactId>gui-editor-apex</artifactId>
+                            <version>${project.version}</version>
+                            <type>jar</type>
+                            <overWrite>true</overWrite>
+                            <outputDirectory>${project.build.directory}/classes/static/apex-editor</outputDirectory>
+                            <includes>static/**</includes>
+                            <fileMappers>
+                                <org.codehaus.plexus.components.io.filemappers.RegExpFileMapper>
+                                    <pattern>^static/</pattern>
+                                    <replacement>./</replacement>
+                                </org.codehaus.plexus.components.io.filemappers.RegExpFileMapper>
+                            </fileMappers>
+                        </artifactItem>
+                    </artifactItems>
+                </configuration>
+            </plugin>
+
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>repackage</goal>
+                        </goals>
+                        <phase>package</phase>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>
diff --git a/gui-server/src/main/java/org/onap/policy/gui/server/GuiServerApplication.java b/gui-server/src/main/java/org/onap/policy/gui/server/GuiServerApplication.java
new file mode 100644
index 0000000..7da2dd6
--- /dev/null
+++ b/gui-server/src/main/java/org/onap/policy/gui/server/GuiServerApplication.java
@@ -0,0 +1,33 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.ComponentScan;
+
+@SpringBootApplication
+@ComponentScan(basePackages = "org.onap.policy.gui")
+public class GuiServerApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(GuiServerApplication.class, args);
+    }
+}
diff --git a/gui-server/src/main/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig.java b/gui-server/src/main/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig.java
new file mode 100644
index 0000000..8d501d2
--- /dev/null
+++ b/gui-server/src/main/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig.java
@@ -0,0 +1,94 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.config;
+
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+import javax.annotation.PostConstruct;
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.SSLContext;
+import org.apache.http.conn.ssl.NoopHostnameVerifier;
+import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
+import org.apache.http.conn.ssl.TrustAllStrategy;
+import org.apache.http.impl.client.HttpClients;
+import org.apache.http.ssl.SSLContextBuilder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.io.Resource;
+import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
+import org.springframework.web.client.RestTemplate;
+
+@Configuration
+public class ClampRestTemplateConfig {
+    private static final Logger LOG = LoggerFactory.getLogger(ClampRestTemplateConfig.class);
+
+    @Value("${clamp.disable-ssl-validation:false}")
+    private boolean disableSslValidation;
+
+    @Value("${clamp.disable-ssl-hostname-check:false}")
+    private boolean disableSslHostnameCheck;
+
+    @Value("${server.ssl.trust-store:#{null}}")
+    private Resource trustStore;
+
+    @Value("${server.ssl.trust-store-password:#{null}}")
+    private char[] trustStorePassword;
+
+    @PostConstruct
+    private void validateProperties() {
+        if (trustStore == null && !disableSslValidation) {
+            throw new IllegalArgumentException("server.ssl.trust-store must be set if SSL validation is enabled");
+        }
+        if (disableSslValidation && !disableSslHostnameCheck) {
+            LOG.info("Disabling SSL hostname check as SSL validation is disabled");
+            disableSslHostnameCheck = true;
+        }
+    }
+
+    /**
+     * Returns a RestTemplate, optionally disabling SSL hostname check or disabling SSL validation entirely.
+     */
+    @Bean
+    public RestTemplate clampRestTemplate() throws GeneralSecurityException, IOException {
+        SSLContext sslContext;
+        if (disableSslValidation) {
+            sslContext = new SSLContextBuilder().loadTrustMaterial(new TrustAllStrategy()).build();
+        } else {
+            sslContext = new SSLContextBuilder().loadTrustMaterial(trustStore.getURL(), trustStorePassword).build();
+        }
+
+        HostnameVerifier hostnameVerifier;
+        if (disableSslHostnameCheck) {
+            hostnameVerifier = new NoopHostnameVerifier();
+        } else {
+            hostnameVerifier = SSLConnectionSocketFactory.getDefaultHostnameVerifier();
+        }
+
+        var csf = new SSLConnectionSocketFactory(sslContext, hostnameVerifier);
+        var httpClient = HttpClients.custom().setSSLSocketFactory(csf).build();
+        var requestFactory = new HttpComponentsClientHttpRequestFactory();
+        requestFactory.setHttpClient(httpClient);
+        return new RestTemplate(requestFactory);
+    }
+}
diff --git a/gui-server/src/main/java/org/onap/policy/gui/server/config/FilterRegistrationConfig.java b/gui-server/src/main/java/org/onap/policy/gui/server/config/FilterRegistrationConfig.java
new file mode 100644
index 0000000..3e62237
--- /dev/null
+++ b/gui-server/src/main/java/org/onap/policy/gui/server/config/FilterRegistrationConfig.java
@@ -0,0 +1,42 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.config;
+
+import org.onap.policy.gui.server.filters.ClientSslHeaderFilter;
+import org.springframework.boot.web.servlet.FilterRegistrationBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class FilterRegistrationConfig {
+
+    /**
+     * Registers ClientSslToHeaderFilter for /clamp/restservices/*.
+     */
+    @Bean
+    public FilterRegistrationBean<ClientSslHeaderFilter> clientSslHeaderFilter() {
+        FilterRegistrationBean<ClientSslHeaderFilter> registrationBean = new FilterRegistrationBean<>();
+        registrationBean.setFilter(new ClientSslHeaderFilter());
+        registrationBean.addUrlPatterns("/clamp/restservices/*");
+        return registrationBean;
+    }
+
+}
diff --git a/gui-server/src/main/java/org/onap/policy/gui/server/config/StaticContentConfig.java b/gui-server/src/main/java/org/onap/policy/gui/server/config/StaticContentConfig.java
new file mode 100644
index 0000000..479202d
--- /dev/null
+++ b/gui-server/src/main/java/org/onap/policy/gui/server/config/StaticContentConfig.java
@@ -0,0 +1,38 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class StaticContentConfig implements WebMvcConfigurer {
+
+    @Override
+    public void addViewControllers(ViewControllerRegistry registry) {
+        registry.addViewController("/clamp").setViewName("redirect:/clamp/");
+        registry.addViewController("/clamp/").setViewName("forward:/clamp/index.html");
+        registry.addViewController("/apex-editor").setViewName("redirect:/apex-editor/");
+        registry.addViewController("/apex-editor/").setViewName("forward:/apex-editor/index.html");
+    }
+
+}
diff --git a/gui-server/src/main/java/org/onap/policy/gui/server/filters/ClientSslHeaderFilter.java b/gui-server/src/main/java/org/onap/policy/gui/server/filters/ClientSslHeaderFilter.java
new file mode 100644
index 0000000..db8f593
--- /dev/null
+++ b/gui-server/src/main/java/org/onap/policy/gui/server/filters/ClientSslHeaderFilter.java
@@ -0,0 +1,146 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.filters;
+
+import static org.onap.policy.gui.server.util.X509CertificateEncoder.urlEncodeCert;
+
+import java.io.IOException;
+import java.security.cert.CertificateEncodingException;
+import java.security.cert.CertificateExpiredException;
+import java.security.cert.CertificateNotYetValidException;
+import java.security.cert.X509Certificate;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.Set;
+import java.util.TreeSet;
+import javax.servlet.FilterChain;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletRequestWrapper;
+import javax.servlet.http.HttpServletResponse;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.core.annotation.Order;
+import org.springframework.web.filter.OncePerRequestFilter;
+
+/**
+ * Filter which encodes a client SSL certificate into X-SSL-Cert HTTP header.
+ * CLAMP has a corresponding filter called ClampCadiFilter which decodes the
+ * header. This is needed as CLAMP runtime uses AAF for auth, and AAF uses
+ * client cert authentication. Since REST requests from CLAMP GUI to CLAMP
+ * runtime are proxied in gui-server, the proxy needs to attach a copy of the
+ * client SSL cert, as the proxy could not know the client's private key.
+ */
+@Order(1)
+public class ClientSslHeaderFilter extends OncePerRequestFilter {
+    private static final Logger LOG = LoggerFactory.getLogger(ClientSslHeaderFilter.class);
+
+    // Name of attribute containing request SSL cert.
+    public static final String X509_ATTRIBUTE_NAME = "javax.servlet.request.X509Certificate";
+
+    // Name of header containing encoded SSL cert - also used in clamp's ClampCadiFilter.
+    public static final String SSL_CERT_HEADER_NAME = "X-SSL-Cert";
+
+    @Override
+    protected void doFilterInternal(HttpServletRequest request,
+                                    HttpServletResponse response,
+                                    FilterChain filterChain) throws ServletException, IOException {
+        var wrappedRequest = new ClientSslHeaderRequestWrapper(request);
+        var certs = (X509Certificate[]) request.getAttribute(X509_ATTRIBUTE_NAME);
+        if (certs != null && certs.length > 0) {
+            try {
+                certs[0].checkValidity();
+                wrappedRequest.setSslCertHeader(urlEncodeCert(certs[0]));
+            } catch (CertificateEncodingException e) {
+                LOG.error("Error encoding client SSL cert", e);
+            } catch (CertificateExpiredException | CertificateNotYetValidException e) {
+                LOG.info("Client SSL cert expired", e);
+            }
+        }
+        filterChain.doFilter(wrappedRequest, response);
+    }
+
+    /*
+     * This class wraps a HttpServletRequest so that X-SSL-Cert header can be added.
+     */
+    private static class ClientSslHeaderRequestWrapper extends HttpServletRequestWrapper {
+        private String encodedSslCert = null;
+
+        public ClientSslHeaderRequestWrapper(HttpServletRequest request) {
+            super(request);
+        }
+
+        public void setSslCertHeader(String encodedSslCert) {
+            this.encodedSslCert = encodedSslCert;
+        }
+
+        /**
+         * Returns the value of the specified request header as a String.
+         * The header name is case insensitive.
+         */
+        @Override
+        public String getHeader(String name) {
+            if (SSL_CERT_HEADER_NAME.equalsIgnoreCase(name)) {
+                return encodedSslCert;
+            } else {
+                return super.getHeader(name);
+            }
+        }
+
+        /**
+         * Returns all the values of the specified request header as an Enumeration
+         * of String objects.
+         * Some headers, such as Accept-Language can be sent by clients as several
+         * headers each with a different value rather than sending the header as a
+         * comma separated list. The header name is case insensitive.
+         */
+        @Override
+        public Enumeration<String> getHeaders(String name) {
+            if (SSL_CERT_HEADER_NAME.equalsIgnoreCase(name)) {
+                if (encodedSslCert != null) {
+                    return Collections.enumeration(Collections.singletonList(encodedSslCert));
+                } else {
+                    return Collections.emptyEnumeration();
+                }
+            } else {
+                return super.getHeaders(name);
+            }
+        }
+
+        /**
+         * Returns an enumeration of all the header names this request contains.
+         * If the request has no headers, this method returns an empty enumeration.
+         */
+        @Override
+        public Enumeration<String> getHeaderNames() {
+            Set<String> names = new TreeSet<>(String.CASE_INSENSITIVE_ORDER);
+            names.addAll(Collections.list(super.getHeaderNames()));
+            if (encodedSslCert != null) {
+                names.add(SSL_CERT_HEADER_NAME);
+            } else {
+                // This is needed to prevent an exploit where a user passes their own
+                // X-SSL-Cert header, possibly bypassing client cert verification.
+                names.remove(SSL_CERT_HEADER_NAME);
+            }
+            return Collections.enumeration(names);
+        }
+    }
+}
diff --git a/gui-server/src/main/java/org/onap/policy/gui/server/rest/ApexEditorRestController.java b/gui-server/src/main/java/org/onap/policy/gui/server/rest/ApexEditorRestController.java
new file mode 100644
index 0000000..a4b92ef
--- /dev/null
+++ b/gui-server/src/main/java/org/onap/policy/gui/server/rest/ApexEditorRestController.java
@@ -0,0 +1,41 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.rest;
+
+import javax.servlet.http.HttpServletRequest;
+import org.springframework.ui.ModelMap;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.servlet.ModelAndView;
+
+@RestController
+@RequestMapping("/apex-editor/policy/gui/v*/apex/editor")
+public class ApexEditorRestController {
+
+    /**
+     * Strip /apex-editor prefix from Apex Editor rest calls.
+     */
+    @RequestMapping("/**")
+    public ModelAndView forwardApexEditorRest(ModelMap model, HttpServletRequest request) {
+        String targetUrl = request.getRequestURI().replaceFirst("^/apex-editor", "");
+        return new ModelAndView("forward:" + targetUrl, model);
+    }
+}
diff --git a/gui-server/src/main/java/org/onap/policy/gui/server/rest/ClampRestController.java b/gui-server/src/main/java/org/onap/policy/gui/server/rest/ClampRestController.java
new file mode 100644
index 0000000..1975f37
--- /dev/null
+++ b/gui-server/src/main/java/org/onap/policy/gui/server/rest/ClampRestController.java
@@ -0,0 +1,78 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.rest;
+
+import java.net.URI;
+import javax.servlet.http.HttpServletRequest;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestHeader;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.client.HttpStatusCodeException;
+import org.springframework.web.client.RestTemplate;
+import org.springframework.web.util.UriComponentsBuilder;
+
+@RestController
+@RequestMapping("/clamp/restservices")
+public class ClampRestController {
+
+    @Value("${clamp.url}")
+    private URI clampUrl;
+
+    @Autowired
+    @Qualifier("clampRestTemplate")
+    private RestTemplate restTemplate;
+
+    /**
+     * Proxy rest calls to clamp backend.
+     */
+    @RequestMapping("/**")
+    public ResponseEntity<String> mirrorRest(@RequestBody(required = false) String body,
+                                             @RequestHeader HttpHeaders headers,
+                                             HttpMethod method,
+                                             HttpServletRequest request) {
+        // Strip /clamp/ prefix from request URI.
+        String requestUri = request.getRequestURI().replaceFirst("^/clamp/", "");
+        URI uri = UriComponentsBuilder.fromUri(clampUrl)
+            .path(requestUri)
+            .query(request.getQueryString())
+            .build(true).toUri();
+
+        HttpEntity<String> httpEntity = new HttpEntity<>(body, headers);
+        try {
+            return restTemplate.exchange(uri, method, httpEntity, String.class);
+
+        } catch (HttpStatusCodeException e) {
+            // On error, return the backend error code instead of 500.
+            return ResponseEntity.status(e.getRawStatusCode())
+                .headers(e.getResponseHeaders())
+                .body(e.getResponseBodyAsString());
+        }
+    }
+
+}
diff --git a/gui-server/src/main/java/org/onap/policy/gui/server/util/X509CertificateEncoder.java b/gui-server/src/main/java/org/onap/policy/gui/server/util/X509CertificateEncoder.java
new file mode 100644
index 0000000..67da719
--- /dev/null
+++ b/gui-server/src/main/java/org/onap/policy/gui/server/util/X509CertificateEncoder.java
@@ -0,0 +1,70 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.util;
+
+import java.io.ByteArrayInputStream;
+import java.net.URLDecoder;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.security.cert.CertificateEncodingException;
+import java.security.cert.CertificateException;
+import java.security.cert.CertificateFactory;
+import java.security.cert.X509Certificate;
+import java.util.Base64;
+
+/**
+ * Helper methods for encoding/decoding X509Certificates from PEM strings and URL-encoded PEM strings.
+ */
+public class X509CertificateEncoder {
+    private static final String BEGIN_CERT = "-----BEGIN CERTIFICATE-----\n";
+    private static final String END_CERT = "\n-----END CERTIFICATE-----";
+
+    private X509CertificateEncoder() {}
+
+    /**
+     * Returns a PEM string from an X509Certificate.
+     */
+    public static String getPemFromCert(X509Certificate cert) throws CertificateEncodingException {
+        return BEGIN_CERT + Base64.getEncoder().encodeToString(cert.getEncoded()) + END_CERT;
+    }
+
+    /**
+     * Returns an X509Certificate from a PEM string.
+     */
+    public static X509Certificate getCertFromPem(String pem) throws CertificateException {
+        return (X509Certificate) CertificateFactory.getInstance("X.509")
+            .generateCertificate(new ByteArrayInputStream(pem.getBytes()));
+    }
+
+    /**
+     * Returns URL-encoded PEM string from an X509Certificate, suitable as a HTTP header.
+     */
+    public static String urlEncodeCert(X509Certificate cert) throws CertificateEncodingException {
+        return URLEncoder.encode(getPemFromCert(cert), StandardCharsets.UTF_8);
+    }
+
+    /**
+     * Returns an X509Certificate from a URL-encoded PEM string.
+     */
+    public static X509Certificate urlDecodeCert(String encodedPem) throws CertificateException {
+        return getCertFromPem(URLDecoder.decode(encodedPem, StandardCharsets.UTF_8));
+    }
+}
diff --git a/gui-server/src/main/resources/static/index.html b/gui-server/src/main/resources/static/index.html
new file mode 100644
index 0000000..3b079a8
--- /dev/null
+++ b/gui-server/src/main/resources/static/index.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <title>ONAP Policy GUI</title>
+</head>
+<body>
+<ul>
+    <li><a href="/apex-editor/">Apex Policy Editor</a></li>
+    <li><a href="/clamp/">CLAMP Designer UI</a></li>
+</ul>
+</body>
+</html>
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/SpringContextTest.java b/gui-server/src/test/java/org/onap/policy/gui/server/SpringContextTest.java
new file mode 100644
index 0000000..7be7694
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/SpringContextTest.java
@@ -0,0 +1,37 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest(
+    properties = {
+        "clamp.url=https://clamp-backend:8443/",
+        "clamp.disable-ssl-validation=true"
+    })
+class SpringContextTest {
+
+    @Test
+    @SuppressWarnings("java:S2699")
+    void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig1Test.java b/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig1Test.java
new file mode 100644
index 0000000..44e4c46
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig1Test.java
@@ -0,0 +1,69 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.config;
+
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import javax.net.ssl.SSLPeerUnverifiedException;
+import org.junit.jupiter.api.Test;
+import org.onap.policy.gui.server.test.util.hello.HelloWorldApplication;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.web.client.RestClientException;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * In this test, SSL validation and hostname check are enabled.
+ * Since our keystore cert has a hostname 'helloworld' and our test request is
+ * to localhost, the request will fail with an SSLPeerUnverifiedException, as
+ * the SSL cert name does not match the server name 'localhost'.
+ */
+@SpringBootTest(
+    classes = { HelloWorldApplication.class, ClampRestTemplateConfig.class },
+    properties = {
+        "server.ssl.key-store=file:src/test/resources/helloworld-keystore.jks",
+        "server.ssl.key-store-password=changeit",
+        "server.ssl.trust-store=file:src/test/resources/helloworld-truststore.jks",
+        "server.ssl.trust-store-password=changeit",
+        "clamp.disable-ssl-validation=false",
+        "clamp.disable-ssl-hostname-check=false"
+    },
+    webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+class ClampRestTemplateConfig1Test {
+
+    @LocalServerPort
+    private int port;
+
+    @Autowired
+    @Qualifier("clampRestTemplate")
+    private RestTemplate restTemplate;
+
+    @Test
+    void testRequestFailsWhenSslHostnameCheckIsEnabled() {
+        var helloUrl = "https://localhost:" + port + "/";
+        Exception e = assertThrows(RestClientException.class,
+            () -> restTemplate.getForEntity(helloUrl, String.class));
+        assertTrue(e.getCause() instanceof SSLPeerUnverifiedException);
+    }
+}
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig2Test.java b/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig2Test.java
new file mode 100644
index 0000000..b8e744c
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig2Test.java
@@ -0,0 +1,61 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.config;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.onap.policy.gui.server.test.util.hello.HelloWorldRestController.HELLO_WORLD_STRING;
+
+import org.junit.jupiter.api.Test;
+import org.onap.policy.gui.server.test.util.hello.HelloWorldApplication;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * In this test, SSL validation is disabled.
+ * The test request should succeed. A trust store has not been supplied in this case.
+ */
+@SpringBootTest(
+    classes = { HelloWorldApplication.class, ClampRestTemplateConfig.class },
+    properties = {
+        "server.ssl.key-store=file:src/test/resources/helloworld-keystore.jks",
+        "server.ssl.key-store-password=changeit",
+        "clamp.disable-ssl-validation=true"
+    },
+    webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+class ClampRestTemplateConfig2Test {
+
+    @LocalServerPort
+    private int port;
+
+    @Autowired
+    @Qualifier("clampRestTemplate")
+    private RestTemplate restTemplate;
+
+    @Test
+    void testRequestSucceedsWhenSslValidationIsDisabled() {
+        var helloUrl = "https://localhost:" + port + "/";
+        String response = restTemplate.getForObject(helloUrl, String.class);
+        assertEquals(HELLO_WORLD_STRING, response);
+    }
+}
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig3Test.java b/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig3Test.java
new file mode 100644
index 0000000..4636982
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig3Test.java
@@ -0,0 +1,70 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.config;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.onap.policy.gui.server.test.util.hello.HelloWorldRestController.HELLO_WORLD_STRING;
+
+import org.junit.jupiter.api.Test;
+import org.onap.policy.gui.server.test.util.hello.HelloWorldApplication;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * In this test, SSL validation is enabled but hostname check is disabled.
+ * Even though our keystore cert has a hostname 'helloworld' and our test
+ * request is to localhost, the request will succeed as the SSL hostname check
+ * is disabled.
+ */
+@SpringBootTest(
+    classes = { HelloWorldApplication.class, ClampRestTemplateConfig.class },
+    properties = {
+        "server.ssl.key-store=file:src/test/resources/helloworld-keystore.jks",
+        "server.ssl.key-store-password=changeit",
+        "server.ssl.trust-store=file:src/test/resources/helloworld-truststore.jks",
+        "server.ssl.trust-store-password=changeit",
+        "clamp.disable-ssl-validation=false",
+        "clamp.disable-ssl-hostname-check=true"
+    },
+    webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+class ClampRestTemplateConfig3Test {
+
+    @LocalServerPort
+    private int port;
+
+    @Autowired
+    @Qualifier("clampRestTemplate")
+    private RestTemplate restTemplate;
+
+    /*
+     * In this test, the request will succeed even though the SSL cert name
+     * does not match 'localhost', as SSL hostname verification is disabled.
+     */
+    @Test
+    void testRequestSucceedsWhenSslHostnameCheckIsDisabled() {
+        var helloUrl = "https://localhost:" + port + "/";
+        String response = restTemplate.getForObject(helloUrl, String.class);
+        assertEquals(HELLO_WORLD_STRING, response);
+    }
+}
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig4Test.java b/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig4Test.java
new file mode 100644
index 0000000..f0f222f
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig4Test.java
@@ -0,0 +1,67 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.config;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.onap.policy.gui.server.test.util.hello.HelloWorldRestController.HELLO_WORLD_STRING;
+
+import org.junit.jupiter.api.Test;
+import org.onap.policy.gui.server.test.util.hello.HelloWorldApplication;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * In this test, SSL validation is disabled but hostname check is explicitly
+ * enabled. The expected behaviour is to disable the hostname check if SSL
+ * validation is disabled. We expect the request to succeed even though the
+ * SSL cert name does not match 'localhost', as SSL hostname verification is
+ * implicitly disabled.
+ */
+@SpringBootTest(
+    classes = { HelloWorldApplication.class, ClampRestTemplateConfig.class },
+    properties = {
+        "server.ssl.key-store=file:src/test/resources/helloworld-keystore.jks",
+        "server.ssl.key-store-password=changeit",
+        "server.ssl.trust-store=file:src/test/resources/helloworld-truststore.jks",
+        "server.ssl.trust-store-password=changeit",
+        "clamp.disable-ssl-validation=true",
+        "clamp.disable-ssl-hostname-check=false"
+    },
+    webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+class ClampRestTemplateConfig4Test {
+
+    @LocalServerPort
+    private int port;
+
+    @Autowired
+    @Qualifier("clampRestTemplate")
+    private RestTemplate restTemplate;
+
+    @Test
+    void testHostnameCheckIsDisabledWhenSslValidationIsDisabled() {
+        var helloUrl = "https://localhost:" + port + "/";
+        String response = restTemplate.getForObject(helloUrl, String.class);
+        assertEquals(HELLO_WORLD_STRING, response);
+    }
+}
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig5Test.java b/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig5Test.java
new file mode 100644
index 0000000..cc23de5
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/config/ClampRestTemplateConfig5Test.java
@@ -0,0 +1,69 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.config;
+
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import javax.net.ssl.SSLPeerUnverifiedException;
+import org.junit.jupiter.api.Test;
+import org.onap.policy.gui.server.test.util.hello.HelloWorldApplication;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.web.client.RestClientException;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * In this test, we verify that SSL validation and hostname check are enabled
+ * by default. Thus we do not explicitly set the Spring properties
+ * clamp.disable-ssl-validation and clamp.disable-ssl-hostname-check.
+ * Since our keystore cert has a hostname 'helloworld' and our test request is
+ * to localhost, the request will fail with an SSLPeerUnverifiedException, as
+ * the SSL cert name does not match the server name 'localhost'.
+ */
+@SpringBootTest(
+    classes = { HelloWorldApplication.class, ClampRestTemplateConfig.class },
+    properties = {
+        "server.ssl.key-store=file:src/test/resources/helloworld-keystore.jks",
+        "server.ssl.key-store-password=changeit",
+        "server.ssl.trust-store=file:src/test/resources/helloworld-truststore.jks",
+        "server.ssl.trust-store-password=changeit",
+    },
+    webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+class ClampRestTemplateConfig5Test {
+
+    @LocalServerPort
+    private int port;
+
+    @Autowired
+    @Qualifier("clampRestTemplate")
+    private RestTemplate restTemplate;
+
+    @Test
+    void testSslValidationIsEnabledByDefault() {
+        var helloUrl = "https://localhost:" + port + "/";
+        Exception e = assertThrows(RestClientException.class,
+            () -> restTemplate.getForEntity(helloUrl, String.class));
+        assertTrue(e.getCause() instanceof SSLPeerUnverifiedException);
+    }
+}
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/filters/ClientSslHeaderFilterTest.java b/gui-server/src/test/java/org/onap/policy/gui/server/filters/ClientSslHeaderFilterTest.java
new file mode 100644
index 0000000..5fc026d
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/filters/ClientSslHeaderFilterTest.java
@@ -0,0 +1,211 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.filters;
+
+import static org.apache.commons.collections4.CollectionUtils.isEqualCollection;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.mock;
+import static org.onap.policy.gui.server.filters.ClientSslHeaderFilter.SSL_CERT_HEADER_NAME;
+import static org.onap.policy.gui.server.filters.ClientSslHeaderFilter.X509_ATTRIBUTE_NAME;
+import static org.onap.policy.gui.server.util.X509CertificateEncoder.urlDecodeCert;
+
+import java.io.IOException;
+import java.security.cert.X509Certificate;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.List;
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import org.junit.jupiter.api.Test;
+import org.mockito.ArgumentCaptor;
+import org.onap.policy.gui.server.test.util.KeyStoreHelper;
+import org.springframework.mock.web.MockHttpServletRequest;
+import org.springframework.mock.web.MockHttpServletResponse;
+
+class ClientSslHeaderFilterTest {
+
+    /*
+     * If the client does not supply an SSL cert, the filter should not set
+     * the X-SSL-Cert header.
+     */
+    @Test
+    void testNoClientCert_noHeader() throws ServletException, IOException {
+        // Create a request without client SSL cert.
+        HttpServletRequest inRequest =  new MockHttpServletRequest();
+
+        // Apply the filter.
+        HttpServletRequest outRequest = applyRequestFilter(inRequest);
+
+        // The modified request should not contain cert header.
+        assertFalse(containsCertHeader(outRequest.getHeaderNames()));
+        assertNull(outRequest.getHeader(SSL_CERT_HEADER_NAME));
+        assertEquals(Collections.emptyEnumeration(), outRequest.getHeaders(SSL_CERT_HEADER_NAME));
+    }
+
+    /*
+     * If the client does supply an SSL cert, the filter should set the
+     * X-SSL-Cert header with the encoded SSL cert.
+     */
+    @Test
+    void testValidClientCert_hasHeader() throws Exception {
+        // Load valid cert from key store.
+        X509Certificate validCert = KeyStoreHelper.loadValidCert();
+
+        // Create a request with a valid client SSL cert.
+        MockHttpServletRequest inRequest = new MockHttpServletRequest();
+        inRequest.setAttribute(X509_ATTRIBUTE_NAME, new X509Certificate[] { validCert });
+
+        // Apply the filter.
+        HttpServletRequest outRequest = applyRequestFilter(inRequest);
+
+        // The modified request should contain a cert header.
+        assertTrue(containsCertHeader(outRequest.getHeaderNames()));
+
+        // Check if the cert header parses back to the original cert.
+        String headerValue = outRequest.getHeader(SSL_CERT_HEADER_NAME);
+        assertEquals(validCert, urlDecodeCert(headerValue));
+
+        // Verify the getHeaders method also returns cert.
+        assertEquals(headerValue, outRequest.getHeaders(SSL_CERT_HEADER_NAME).nextElement());
+    }
+
+    /*
+     * If the client supplies an expired SSL cert, the filter should not set
+     * the X-SSL-Cert header.
+     */
+    @Test
+    void testExpiredClientCert_noHeader() throws Exception {
+        // Load expired cert from key store.
+        X509Certificate expiredCert = KeyStoreHelper.loadExpiredCert();
+
+        // Create a request with an expired client SSL cert.
+        MockHttpServletRequest inRequest = new MockHttpServletRequest();
+        inRequest.setAttribute(X509_ATTRIBUTE_NAME, new X509Certificate[] { expiredCert });
+
+        // Apply the filter.
+        HttpServletRequest outRequest = applyRequestFilter(inRequest);
+
+        // The modified request should not contain a cert header.
+        assertFalse(containsCertHeader(outRequest.getHeaderNames()));
+        assertNull(outRequest.getHeader(SSL_CERT_HEADER_NAME));
+        assertEquals(Collections.emptyEnumeration(), outRequest.getHeaders(SSL_CERT_HEADER_NAME));
+    }
+
+    /*
+     * This test is needed to prevent a security vulnerability where a
+     * malicious user does not authenticate using client cert, but defines the
+     * X-SSL-Cert header themselves, thus gaining access without having the
+     * corresponding private key.
+     * We thus test that an incoming X-SSL-Cert header is sanitized.
+     */
+    @Test
+    void existingCertHeaderIsSanitized() throws Exception {
+        // Create a request with X-SSL-Cert header predefined.
+        MockHttpServletRequest inRequest = new MockHttpServletRequest();
+        inRequest.addHeader(SSL_CERT_HEADER_NAME, "somevalue");
+
+        // Apply the filter.
+        HttpServletRequest outRequest = applyRequestFilter(inRequest);
+
+        // The modified request should not contain a cert header.
+        assertFalse(containsCertHeader(outRequest.getHeaderNames()));
+        assertNull(outRequest.getHeader(SSL_CERT_HEADER_NAME));
+        assertEquals(Collections.emptyEnumeration(), outRequest.getHeaders(SSL_CERT_HEADER_NAME));
+    }
+
+    /*
+     * This test verifies that existing HTTP headers are preserved
+     *  (including multi-value headers).
+     */
+    @Test
+    void otherHeadersAreStillAccessible() throws Exception {
+        // Load valid cert from key store.
+        X509Certificate validCert = KeyStoreHelper.loadValidCert();
+
+        // Create a request with a valid client SSL cert and some existing headers.
+        MockHttpServletRequest inRequest = new MockHttpServletRequest();
+        inRequest.setAttribute(X509_ATTRIBUTE_NAME, new X509Certificate[] { validCert });
+        inRequest.addHeader("User-Agent", "Jupiter");
+        inRequest.addHeader("Accept-Language", "en-US");
+        inRequest.addHeader("Accept-Language", "en-IE");
+
+        // Apply the filter.
+        HttpServletRequest outRequest = applyRequestFilter(inRequest);
+
+        // The modified request contains the new cert header and the existing headers.
+        assertTrue(
+            isEqualCollection(
+                List.of("Accept-Language", "User-Agent", SSL_CERT_HEADER_NAME),
+                Collections.list(outRequest.getHeaderNames())));
+
+        // Verify getHeader method returns correct value.
+        String userAgent = outRequest.getHeader("User-Agent");
+        assertEquals("Jupiter", userAgent);
+
+        // Verify getHeaders method returns correct values.
+        Enumeration<String> acceptLanguages = outRequest.getHeaders("Accept-Language");
+        assertEquals("en-US", acceptLanguages.nextElement());
+        assertEquals("en-IE", acceptLanguages.nextElement());
+        assertFalse(acceptLanguages.hasMoreElements());
+    }
+
+    /**
+     * Apply the ClientSslToHeaderFilter to the input request,
+     * and return the modified request.
+     */
+    private HttpServletRequest applyRequestFilter(HttpServletRequest request) throws ServletException, IOException {
+        HttpServletResponse response = new MockHttpServletResponse();
+
+        // The filter calls filterChain::doFilter after processing the request,
+        // so capture the HttpServletRequest argument from filterChain::doFilter.
+        FilterChain filterChain = mock(FilterChain.class);
+        ArgumentCaptor<HttpServletRequest> requestCaptor = ArgumentCaptor.forClass(HttpServletRequest.class);
+        doNothing().when(filterChain).doFilter(requestCaptor.capture(), eq(response));
+
+        // Apply the filter.
+        Filter filter = new ClientSslHeaderFilter();
+        filter.doFilter(request, response, filterChain);
+
+        // Return the modified HttpServletRequest.
+        return requestCaptor.getValue();
+    }
+
+    /**
+     * Check if an Enumeration of header names contains the certificate header.
+     * Note HTTP header names are case insensitive.
+     */
+    private boolean containsCertHeader(Enumeration<String> headers) {
+        while (headers.hasMoreElements()) {
+            if (headers.nextElement().equalsIgnoreCase(SSL_CERT_HEADER_NAME)) {
+                return true;
+            }
+        }
+        return false;
+    }
+}
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/rest/ApexEditorRestControllerTest.java b/gui-server/src/test/java/org/onap/policy/gui/server/rest/ApexEditorRestControllerTest.java
new file mode 100644
index 0000000..4cfd994
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/rest/ApexEditorRestControllerTest.java
@@ -0,0 +1,61 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.rest;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.forwardedUrl;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.redirectedUrl;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.web.servlet.MockMvc;
+
+@SpringBootTest(
+    properties = {
+        "clamp.url=https://clamp-backend:8443/",
+        "clamp.disable-ssl-validation=true"
+    })
+@AutoConfigureMockMvc
+class ApexEditorRestControllerTest {
+
+    @Autowired
+    private MockMvc mvc;
+
+    @Test
+    void testStaticContentUrls() throws Exception {
+        mvc.perform(get("/apex-editor/"))
+            .andExpect(status().isOk())
+            .andExpect(forwardedUrl("/apex-editor/index.html"));
+
+        mvc.perform(get("/apex-editor"))
+            .andExpect(status().is3xxRedirection())
+            .andExpect(redirectedUrl("/apex-editor/"));
+    }
+
+    @Test
+    void testApexEditorRestForwarding() throws Exception {
+        mvc.perform(get("/apex-editor/policy/gui/v1/apex/editor/-1/Session/Create"))
+            .andExpect(forwardedUrl("/policy/gui/v1/apex/editor/-1/Session/Create"));
+    }
+}
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/rest/ClampRestControllerTest.java b/gui-server/src/test/java/org/onap/policy/gui/server/rest/ClampRestControllerTest.java
new file mode 100644
index 0000000..fb3e843
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/rest/ClampRestControllerTest.java
@@ -0,0 +1,161 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.rest;
+
+import static org.onap.policy.gui.server.filters.ClientSslHeaderFilter.SSL_CERT_HEADER_NAME;
+import static org.onap.policy.gui.server.test.util.X509RequestPostProcessor.x509;
+import static org.onap.policy.gui.server.util.X509CertificateEncoder.urlEncodeCert;
+import static org.springframework.test.web.client.match.MockRestRequestMatchers.header;
+import static org.springframework.test.web.client.match.MockRestRequestMatchers.method;
+import static org.springframework.test.web.client.match.MockRestRequestMatchers.requestTo;
+import static org.springframework.test.web.client.response.MockRestResponseCreators.withStatus;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.forwardedUrl;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.redirectedUrl;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+import java.security.cert.X509Certificate;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.onap.policy.gui.server.test.util.KeyStoreHelper;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
+import org.springframework.test.web.client.MockRestServiceServer;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.web.client.RestTemplate;
+
+@SpringBootTest(
+    properties = {
+        "clamp.url=https://clamp-backend:8443/",
+        "clamp.disable-ssl-validation=true"
+    })
+@AutoConfigureMockMvc
+class ClampRestControllerTest {
+
+    @Autowired
+    private MockMvc mvc;
+
+    @Autowired
+    @Qualifier("clampRestTemplate")
+    private RestTemplate restTemplate;
+
+    private MockRestServiceServer mockServer;
+
+    @BeforeEach
+    public void init() {
+        mockServer = MockRestServiceServer.createServer(restTemplate);
+    }
+
+    @Test
+    void testStaticContentUrls() throws Exception {
+        mvc.perform(get("/clamp/"))
+            .andExpect(status().isOk())
+            .andExpect(forwardedUrl("/clamp/index.html"));
+
+        mvc.perform(get("/clamp"))
+            .andExpect(status().is3xxRedirection())
+            .andExpect(redirectedUrl("/clamp/"));
+    }
+
+    /*
+     * This is a happy path test to verify that calls to /clamp/restservices/**
+     * are relayed to the clamp backend, and that the backend receives the
+     * client certificate encoded in a header. More extensive tests of the
+     * certificate cert filter are in ClientSslHeaderFilterTest.
+     */
+    @Test
+    void testClampProxyWithClientCert() throws Exception {
+        X509Certificate cert = KeyStoreHelper.loadValidCert();
+
+        mockServer.expect(
+            requestTo("https://clamp-backend:8443/restservices/junit/test"))
+            .andExpect(header(SSL_CERT_HEADER_NAME, urlEncodeCert(cert)))
+            .andRespond(withStatus(HttpStatus.OK).body("admin"));
+
+        mvc.perform(
+            get("/clamp/restservices/junit/test")
+                .with(x509(cert)))
+            .andExpect(status().isOk())
+            .andExpect(content().string("admin"));
+
+        mockServer.verify();
+    }
+
+    /*
+     * This test verifies that HTTP headers are preserved for requests to the
+     * clamp backend (including multi-value headers).
+     */
+    @Test
+    void verifyClampProxyPassesHeaders() throws Exception {
+        // Single value header
+        final String userAgent = "User-Agent";
+        final String userAgentValue = "JUnit";
+        // Multi value header
+        final String acceptLanguage = "Accept-Language";
+        final String enUs = "en-US";
+        final String enIe = "en-IE";
+
+        mockServer.expect(
+            requestTo("https://clamp-backend:8443/restservices/junit/test"))
+            .andExpect(method(HttpMethod.GET))
+            .andExpect(header(userAgent, userAgentValue))
+            .andExpect(header(acceptLanguage, enUs, enIe))
+            .andRespond(withStatus(HttpStatus.OK));
+
+        HttpHeaders requestHeaders = new HttpHeaders();
+        requestHeaders.set(userAgent, userAgentValue);
+        requestHeaders.add(acceptLanguage, enUs);
+        requestHeaders.add(acceptLanguage, enIe);
+        mvc.perform(
+            get("/clamp/restservices/junit/test")
+                .headers(requestHeaders))
+            .andExpect(status().isOk());
+
+        mockServer.verify();
+    }
+
+    /*
+     * This test verifies that error messages from the clamp backend are
+     * delivered to the client (as opposed to 500 "Internal Server Error").
+     */
+    @Test
+    void verifyClampProxyReturnsBackendErrorCode() throws Exception {
+        final String errorMessage = "This appliance cannot brew coffee";
+
+        mockServer.expect(
+            requestTo("https://clamp-backend:8443/restservices/coffee"))
+            .andRespond(withStatus(HttpStatus.I_AM_A_TEAPOT).body(errorMessage));
+
+        mvc.perform(
+            post("/clamp/restservices/coffee"))
+            .andExpect(status().is(HttpStatus.I_AM_A_TEAPOT.value()))
+            .andExpect(content().string(errorMessage));
+
+        mockServer.verify();
+    }
+}
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/test/util/KeyStoreHelper.java b/gui-server/src/test/java/org/onap/policy/gui/server/test/util/KeyStoreHelper.java
new file mode 100644
index 0000000..a4aabb8
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/test/util/KeyStoreHelper.java
@@ -0,0 +1,92 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.test.util;
+
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import java.io.FileInputStream;
+import java.security.KeyStore;
+import java.security.cert.CertificateExpiredException;
+import java.security.cert.X509Certificate;
+import org.junit.jupiter.api.function.Executable;
+
+public class KeyStoreHelper {
+    /*
+     * The proxy test keystore contains certs with:
+     * - alias "valid": self-signed cert which expires circa year 2050
+     * - alias "expired": self-signed cert which expired in year 2000
+     */
+    private static final String KEY_STORE_PATH = "src/test/resources/keystore-proxytest.jks";
+    private static final String KEY_STORE_PASSWORD = "changeit";
+    private static final String KEY_STORE_TYPE = "JKS";
+    private static final String CERT_ALIAS_VALID = "valid";
+    private static final String CERT_ALIAS_EXPIRED = "expired";
+
+    /**
+     * Load a valid certificate from the test keystore.
+     */
+    public static X509Certificate loadValidCert() throws CouldNotLoadCertificateException {
+        X509Certificate cert = loadCertFromKeyStore(CERT_ALIAS_VALID);
+        assertDoesNotThrow((Executable) cert::checkValidity);
+        return cert;
+    }
+
+    /**
+     * Load an expired certificate from the test keystore.
+     */
+    public static X509Certificate loadExpiredCert() throws CouldNotLoadCertificateException {
+        X509Certificate cert = loadCertFromKeyStore(CERT_ALIAS_EXPIRED);
+        assertThrows(CertificateExpiredException.class, cert::checkValidity);
+        return cert;
+    }
+
+    /**
+     * Load a certificate with given alias from the test keystore.
+     */
+    private static X509Certificate loadCertFromKeyStore(String certAlias) throws CouldNotLoadCertificateException {
+        try {
+            KeyStore ks = KeyStore.getInstance(KEY_STORE_TYPE);
+            ks.load(new FileInputStream(KEY_STORE_PATH), KEY_STORE_PASSWORD.toCharArray());
+            X509Certificate cert = (X509Certificate) ks.getCertificate(certAlias);
+            if (cert == null) {
+                throw new CouldNotLoadCertificateException("Alias does not exist or does not contain a certificate.");
+            }
+            return cert;
+        } catch (Exception e) {
+            throw new CouldNotLoadCertificateException(
+                "Could not load cert with alias '" + certAlias + "' from test keystore.", e);
+        }
+    }
+
+    /**
+     * Exception class for KeyStoreHelper methods.
+     */
+    public static class CouldNotLoadCertificateException extends java.lang.Exception {
+        protected CouldNotLoadCertificateException(String errorMessage) {
+            super(errorMessage);
+        }
+
+        protected CouldNotLoadCertificateException(String errorMessage, Throwable err) {
+            super(errorMessage, err);
+        }
+    }
+}
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/test/util/X509RequestPostProcessor.java b/gui-server/src/test/java/org/onap/policy/gui/server/test/util/X509RequestPostProcessor.java
new file mode 100644
index 0000000..b1ef4a1
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/test/util/X509RequestPostProcessor.java
@@ -0,0 +1,46 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.test.util;
+
+import java.security.cert.X509Certificate;
+import org.springframework.mock.web.MockHttpServletRequest;
+import org.springframework.test.web.servlet.request.RequestPostProcessor;
+
+/**
+ * X509RequestPostProcessor is a test helper class for use with Spring MockMvc.
+ * It allows setting X509 certificates to a MockHttpServletRequest.
+ */
+public final class X509RequestPostProcessor implements RequestPostProcessor {
+    private final X509Certificate[] certificates;
+
+    public X509RequestPostProcessor(X509Certificate... certificates) {
+        this.certificates = certificates;
+    }
+
+    public MockHttpServletRequest postProcessRequest(MockHttpServletRequest request) {
+        request.setAttribute("javax.servlet.request.X509Certificate", this.certificates);
+        return request;
+    }
+
+    public static RequestPostProcessor x509(X509Certificate... certificates) {
+        return new X509RequestPostProcessor(certificates);
+    }
+}
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/test/util/hello/HelloWorldApplication.java b/gui-server/src/test/java/org/onap/policy/gui/server/test/util/hello/HelloWorldApplication.java
new file mode 100644
index 0000000..e584665
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/test/util/hello/HelloWorldApplication.java
@@ -0,0 +1,29 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.test.util.hello;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+// This class is used in tests for ClampRestTemplateConfig.
+@SpringBootApplication
+public class HelloWorldApplication {
+
+}
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/test/util/hello/HelloWorldRestController.java b/gui-server/src/test/java/org/onap/policy/gui/server/test/util/hello/HelloWorldRestController.java
new file mode 100644
index 0000000..71bd483
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/test/util/hello/HelloWorldRestController.java
@@ -0,0 +1,35 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.test.util.hello;
+
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+// This class is used in tests for ClampRestTemplateConfig.
+@RestController
+public class HelloWorldRestController {
+    public static final String HELLO_WORLD_STRING = "Hello, World";
+
+    @RequestMapping("/")
+    public String greeting() {
+        return HELLO_WORLD_STRING;
+    }
+}
diff --git a/gui-server/src/test/java/org/onap/policy/gui/server/util/X509CertificateEncoderTest.java b/gui-server/src/test/java/org/onap/policy/gui/server/util/X509CertificateEncoderTest.java
new file mode 100644
index 0000000..28b1217
--- /dev/null
+++ b/gui-server/src/test/java/org/onap/policy/gui/server/util/X509CertificateEncoderTest.java
@@ -0,0 +1,47 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.gui.server.util;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.security.cert.CertificateException;
+import java.security.cert.X509Certificate;
+import org.junit.jupiter.api.Test;
+import org.onap.policy.gui.server.test.util.KeyStoreHelper;
+
+class X509CertificateEncoderTest {
+
+    @Test
+    void testPemEncoder() throws KeyStoreHelper.CouldNotLoadCertificateException, CertificateException {
+        X509Certificate loadedCert = KeyStoreHelper.loadValidCert();
+        String pem = X509CertificateEncoder.getPemFromCert(loadedCert);
+        X509Certificate certFromPem = X509CertificateEncoder.getCertFromPem(pem);
+        assertEquals(loadedCert, certFromPem);
+    }
+
+    @Test
+    void testUrlEncoder() throws KeyStoreHelper.CouldNotLoadCertificateException, CertificateException {
+        X509Certificate loadedCert = KeyStoreHelper.loadValidCert();
+        String encodedCert = X509CertificateEncoder.urlEncodeCert(loadedCert);
+        X509Certificate decodedCert = X509CertificateEncoder.urlDecodeCert(encodedCert);
+        assertEquals(loadedCert, decodedCert);
+    }
+}
diff --git a/gui-server/src/test/resources/helloworld-keystore.jks b/gui-server/src/test/resources/helloworld-keystore.jks
new file mode 100644
index 0000000..c2f1a0e
--- /dev/null
+++ b/gui-server/src/test/resources/helloworld-keystore.jks
Binary files differ
diff --git a/gui-server/src/test/resources/helloworld-truststore.jks b/gui-server/src/test/resources/helloworld-truststore.jks
new file mode 100644
index 0000000..64c123e
--- /dev/null
+++ b/gui-server/src/test/resources/helloworld-truststore.jks
Binary files differ
diff --git a/gui-server/src/test/resources/keystore-proxytest.jks b/gui-server/src/test/resources/keystore-proxytest.jks
new file mode 100644
index 0000000..c261084
--- /dev/null
+++ b/gui-server/src/test/resources/keystore-proxytest.jks
Binary files differ
diff --git a/packages/policy-gui-docker/pom.xml b/packages/policy-gui-docker/pom.xml
index 36047b7..7d56634 100644
--- a/packages/policy-gui-docker/pom.xml
+++ b/packages/policy-gui-docker/pom.xml
@@ -1,6 +1,6 @@
 <!--
   ============LICENSE_START=======================================================
-   Copyright (C) 2021 Nordix Foundation.
+   Copyright (C) 2021-2022 Nordix Foundation.
   ================================================================================
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
@@ -92,9 +92,9 @@
                                         <dependencySets>
                                             <dependencySet>
                                                 <includes>
-                                                    <include>org.onap.policy.gui:gui-clamp:tar.gz:clamp-build:${project.version}</include>
+                                                    <include>org.onap.policy.gui:gui-server:jar:${project.version}</include>
                                                 </includes>
-                                                <outputFileNameMapping>gui-clamp-html.tar.gz</outputFileNameMapping>
+                                                <outputFileNameMapping>app.jar</outputFileNameMapping>
                                             </dependencySet>
                                         </dependencySets>
                                     </inline>
@@ -151,10 +151,8 @@
     <dependencies>
         <dependency>
             <groupId>org.onap.policy.gui</groupId>
-            <artifactId>gui-clamp</artifactId>
+            <artifactId>gui-server</artifactId>
             <version>${project.version}</version>
-            <classifier>clamp-build</classifier>
-            <type>tar.gz</type>
         </dependency>
     </dependencies>
 </project>
diff --git a/packages/policy-gui-docker/src/main/docker/Dockerfile b/packages/policy-gui-docker/src/main/docker/Dockerfile
index b19deb9..bc9ce03 100644
--- a/packages/policy-gui-docker/src/main/docker/Dockerfile
+++ b/packages/policy-gui-docker/src/main/docker/Dockerfile
@@ -1,6 +1,6 @@
 #-------------------------------------------------------------------------------
 # ============LICENSE_START=======================================================
-#  Copyright (C) 2021 Nordix Foundation.
+#  Copyright (C) 2021-2022 Nordix Foundation.
 # ================================================================================
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -27,19 +27,14 @@
 ENV POLICY_LOGS=$POLICY_LOGS
 ENV POLICY_HOME=$POLICY_HOME/gui
 
-RUN mkdir -p $POLICY_HOME $POLICY_LOGS $POLICY_HOME/bin $POLICY_HOME/lib && \
-    chown -R policy:policy $POLICY_HOME $POLICY_LOGS && \
-    apk update && \
-    apk add --no-cache nginx
+RUN mkdir -p $POLICY_HOME $POLICY_LOGS $POLICY_HOME/bin $POLICY_HOME/etc/ssl && \
+    chown -R policy:policy $POLICY_HOME $POLICY_LOGS
 
-COPY --chown=policy:policy etc/ /etc/
+COPY --chown=policy:policy /maven/app.jar /app/
 COPY --chown=policy:policy policy-gui.sh $POLICY_HOME/bin/
-ADD --chown=policy:policy index.html /maven/gui-clamp-html.tar.gz /usr/share/nginx/html/
-RUN ln -sf /dev/stdout /var/log/nginx/access.log && \
-    ln -sf /dev/stderr /var/log/nginx/error.log && \
-    touch /var/run/nginx.pid && \
-    chown -R policy:policy /etc/nginx /usr/share/nginx /var/lib/nginx /var/log/nginx /var/run/nginx.pid && \
-    chmod 755 $POLICY_HOME/bin/*.sh
+COPY --chown=policy:policy config/application.yml $POLICY_HOME/etc/
+COPY --chown=policy:policy config/logback.xml $POLICY_HOME/etc/
+RUN chmod 755 $POLICY_HOME/bin/*.sh
 
 USER policy
 WORKDIR $POLICY_HOME/bin
diff --git a/packages/policy-gui-docker/src/main/docker/config/application.yml b/packages/policy-gui-docker/src/main/docker/config/application.yml
new file mode 100644
index 0000000..7b20d02
--- /dev/null
+++ b/packages/policy-gui-docker/src/main/docker/config/application.yml
@@ -0,0 +1,24 @@
+server:
+  port: 2443
+  ssl:
+    enabled: true
+    client-auth: need
+    key-store: file:${KEYSTORE}
+    key-store-password: ${KEYSTORE_PASSWD}
+    trust-store: file:${TRUSTSTORE}
+    trust-store-password: ${TRUSTSTORE_PASSWD}
+
+clamp:
+  url: https://policy-clamp-be:8443
+  disable-ssl-validation: false
+  disable-ssl-hostname-check: true
+
+apex-editor:
+  upload-url:
+  upload-userid:
+
+management:
+  endpoints:
+    web:
+      exposure:
+        include: health, metrics, prometheus
diff --git a/packages/policy-gui-docker/src/main/docker/config/logback.xml b/packages/policy-gui-docker/src/main/docker/config/logback.xml
new file mode 100644
index 0000000..019ae50
--- /dev/null
+++ b/packages/policy-gui-docker/src/main/docker/config/logback.xml
@@ -0,0 +1,119 @@
+<!--
+  ============LICENSE_START=======================================================
+  policy-gui
+  ================================================================================
+  Copyright (C) 2021-2022 Nordix Foundation.
+  ================================================================================
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  ============LICENSE_END=========================================================
+  -->
+
+<configuration scan="true" scanPeriod="30 seconds" debug="false">
+
+    <property name="logDir" value="${POLICY_LOGS}" />
+
+    <property name="errorLog" value="error" />
+    <property name="debugLog" value="debug" />
+    <property name="networkLog" value="network" />
+
+    <property name="debugPattern"
+              value="[%d{yyyy-MM-dd'T'HH:mm:ss.SSS+00:00, UTC}|%level|%logger{0}|%thread] %msg%n" />
+    <property name="errorPattern" value="${debugPattern}" />
+    <property name="networkPattern" value="[%d{yyyy-MM-dd'T'HH:mm:ss.SSS+00:00, UTC}|%t]%m%n" />
+
+    <appender name="ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>${logDir}/${errorLog}.log</file>
+        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
+            <fileNamePattern>${logDir}/${errorLog}.%d{yyyy-MM-dd}.%i.log.zip
+            </fileNamePattern>
+            <maxFileSize>50MB</maxFileSize>
+            <maxHistory>30</maxHistory>
+            <totalSizeCap>10GB</totalSizeCap>
+        </rollingPolicy>
+        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
+            <level>WARN</level>
+        </filter>
+        <encoder>
+            <pattern>${errorPattern}</pattern>
+        </encoder>
+    </appender>
+
+    <appender name="asyncError" class="ch.qos.logback.classic.AsyncAppender">
+        <appender-ref ref="ERROR" />
+    </appender>
+
+    <appender name="DEBUG" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>${logDir}/${debugLog}.log</file>
+        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
+            <fileNamePattern>${logDir}/${debugLog}.%d{yyyy-MM-dd}.%i.log.zip
+            </fileNamePattern>
+            <maxFileSize>50MB</maxFileSize>
+            <maxHistory>30</maxHistory>
+            <totalSizeCap>10GB</totalSizeCap>
+        </rollingPolicy>
+        <encoder>
+            <pattern>${debugPattern}</pattern>
+        </encoder>
+    </appender>
+
+    <appender name="asyncDebug" class="ch.qos.logback.classic.AsyncAppender">
+        <appender-ref ref="DEBUG" />
+    </appender>
+
+    <appender name="NETWORK" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>${logDir}/${networkLog}.log</file>
+        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
+            <fileNamePattern>${logDir}/${networkLog}.%d{yyyy-MM-dd}.%i.log.zip
+            </fileNamePattern>
+            <maxFileSize>50MB</maxFileSize>
+            <maxHistory>30</maxHistory>
+            <totalSizeCap>10GB</totalSizeCap>
+        </rollingPolicy>
+        <encoder>
+            <pattern>${networkPattern}</pattern>
+        </encoder>
+    </appender>
+
+    <appender name="asyncNetwork" class="ch.qos.logback.classic.AsyncAppender">
+        <appender-ref ref="NETWORK" />
+    </appender>
+
+    <logger name="network" level="INFO" additivity="false">
+        <appender-ref ref="asyncNetwork" />
+    </logger>
+
+    <logger name="org.apache" level="INFO">
+        <appender-ref ref="DEBUG" />
+    </logger>
+
+    <!-- Spring related loggers -->
+    <logger name="org.springframework" level="INFO">
+        <appender-ref ref="DEBUG" />
+    </logger>
+
+    <!-- GUI related loggers -->
+    <logger name="org.onap.policy.gui" level="DEBUG">
+        <appender-ref ref="ERROR" />
+        <appender-ref ref="DEBUG" />
+    </logger>
+
+    <!-- logback internals logging -->
+    <logger name="ch.qos.logback.classic" level="INFO" />
+    <logger name="ch.qos.logback.core" level="INFO" />
+
+    <root level="INFO">
+        <appender-ref ref="asyncDebug" />
+        <appender-ref ref="asyncError" />
+        <appender-ref ref="asyncNetwork" />
+    </root>
+</configuration>
diff --git a/packages/policy-gui-docker/src/main/docker/etc/nginx/http.d/default.conf b/packages/policy-gui-docker/src/main/docker/etc/nginx/http.d/default.conf
deleted file mode 100644
index c03894d..0000000
--- a/packages/policy-gui-docker/src/main/docker/etc/nginx/http.d/default.conf
+++ /dev/null
@@ -1,23 +0,0 @@
-server {
-  listen 2443 default ssl;
-  ssl_protocols TLSv1.2;
-  ssl_certificate /etc/ssl/clamp.pem;
-  ssl_certificate_key /etc/ssl/clamp.key;
-  ssl_verify_client optional_no_ca;
-
-  location / {
-    root /usr/share/nginx/html;
-    index index.html index.htm;
-    try_files $uri $uri/ =404;
-  }
-
-  location /clamp/restservices/clds/ {
-    proxy_pass https://policy-clamp-backend:8443/restservices/clds/;
-    proxy_set_header X-SSL-Cert $ssl_client_escaped_cert;
-  }
-
-  location = /50x.html {
-    root /var/lib/nginx/html;
-  }
-  error_page  500 502 503 504  /50x.html;
-}
diff --git a/packages/policy-gui-docker/src/main/docker/etc/nginx/nginx.conf b/packages/policy-gui-docker/src/main/docker/etc/nginx/nginx.conf
deleted file mode 100644
index bb31a60..0000000
--- a/packages/policy-gui-docker/src/main/docker/etc/nginx/nginx.conf
+++ /dev/null
@@ -1,18 +0,0 @@
-worker_processes  1;
-pid /var/run/nginx.pid;
-error_log /dev/stdout warn;
-events {
-}
-http {
-  include       /etc/nginx/mime.types;
-  default_type  application/octet-stream;
-  log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
-                    '$status $body_bytes_sent "$http_referer" '
-                    '"$http_user_agent" "$http_x_forwarded_for"';
-  access_log  /var/log/nginx/access.log  main;
-  sendfile        on;
-  #tcp_nopush     on;
-  keepalive_timeout  65;
-  #gzip  on;
-  include /etc/nginx/conf.d/*.conf;
-}
diff --git a/packages/policy-gui-docker/src/main/docker/etc/ssl/clamp.key b/packages/policy-gui-docker/src/main/docker/etc/ssl/clamp.key
deleted file mode 100644
index bcbb9f1..0000000
--- a/packages/policy-gui-docker/src/main/docker/etc/ssl/clamp.key
+++ /dev/null
@@ -1,32 +0,0 @@
-Bag Attributes
-    friendlyName: clamp@clamp.onap.org
-    localKeyID: 54 69 6D 65 20 31 35 38 30 38 32 39 30 36 35 34 37 39 
-Key Attributes: <No Attributes>
------BEGIN PRIVATE KEY-----
-MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCTB30nMh0hczIk
-vWJo7Omg7cAHhz50NBhLB7u+60oXRGCya4SqssqqxNnNqNQQP9MmflW2q/bZepWn
-8Rk23X6CLmoIUlrj8BMPkUCRqzgvlaWPSNAK5QcOp6GUvXTuX4EsaWxJhbs9Ujz2
-+qi137iNOqfAx1sUygah1kjALrqHkXDqJGvIfxU5ES0akBi/lB7A3WpE52KTioSF
-JS5Kbnpj1ogffGNKyAiNqU61LcF1FjWmINat2z3ZMk/3Xm+HCDg/GLPnbh4E1KoE
-10O22AMys6YGEyPvgRfrTF13DsDX52PmmUHbkSB6kwS/CeV5Uu++8b6T2IWpPyZ2
-+5ptmL+tAgMBAAECggEBAIUplzRUswWEq7mSvPqC9+YE7pLi7rGYLRhnXKdBuszv
-5RQzROjFHcEkoI8fhVFiPP70FPVpMh0uZTTBrDCA0v9cwjPfQuqGmPzUdUJ5bF3M
-jzICpEn5vDaNpE5ueOUcIoXyxVyhfj+/p++YfgybHy7qHN0AsYFWqEMTLLjCmbYF
-pZozbAcGQoAR8PSfwuvgusuEezrhYertHsdFwlfZhDtJvnm/4YKRUVEBzuaaA7B9
-sUhnQFS8ScqiUbkAGdjfY9wOYRHnQgjtqiP8poIzLkqCNSoVctgh5Pdv4jp4HO90
-J5QC+f7m7rOoWUw8EYbRo/4C4Mckh0GQQ+oP4xzrtZECgYEA3DYALFgOEY+0RR1K
-61HAKqdNy1YbeuidpCBEJEwmIbzdgO1DcJdNznbfdRlmS7VB9orwRfNbf7Hxm2w/
-/xn9USENXWx7fvDoISqSDegvEsBSq5hSEMVl3f7CfQZrYl1f6gxfe7L/jtmbn0eQ
-avsr9RaUCWP794DEXKuA9pC8hVsCgYEAquy5I4hO4jNBQ6v5+omjsEgk4513/RNs
-f47Md8bsDHKJMbCMKCdqM1D3J1xbgV3DgSv0yNlKdU2wenWdgQAyBtz18NBgno85
-YNanFhp1CymgLFHdLJHSOqAkzutSuCNnGTT6AKspOQvy+cuj7XsnbsxtYK3Cgw5h
-Mom3RnUy9ZcCgYAnForHVEYDBgAYuI9g39z9dT8Q1dMA6SN6S6Ps0Xt/R5gF15e9
-941/FYiqr3yB+cWgrp7hu8XFD9/0F63waTuW2AgYSjZNnROHN5g/UbRxXqQOA3al
-tXRUiHEbYjVTe4GX+ORF/8rvH19JUZmn87ekxII4fH/wOfIhBOxaV+yuuwKBgHtz
-5Tizz/3y9TWSdkgtt6uwP+yipLKGn/v1wNrWM1G+PDdGg8TQyxTrasfkHjdu6LFY
-dUHIJ85X4ZphbvRolrl8SKq5Zr+/RLsb7qy5SUZZt1Wrfysc25H6bvuA3ksfTuzW
-5acr+Oc6KTGgkvMI229cebe1aONNtIhTDav3JGpbAoGAX5DQvNreqnP8qSAvUN2I
-TAHXIzawR3f6vgGgVIdkHkiS2eKzs/fgP3VAK80TbrGSR8HvBcPEcR/icOn1u/e6
-tDp0j6mGt5aPKK9VQkBn94bW35T12FUbdB+L8FWWTUrfiVWJtEW8tEsKil5ac8U4
-Bn3vC5WUeKhW6v6kD4AigqE=
------END PRIVATE KEY-----
diff --git a/packages/policy-gui-docker/src/main/docker/etc/ssl/clamp.pem b/packages/policy-gui-docker/src/main/docker/etc/ssl/clamp.pem
deleted file mode 100644
index a01b587..0000000
--- a/packages/policy-gui-docker/src/main/docker/etc/ssl/clamp.pem
+++ /dev/null
@@ -1,33 +0,0 @@
-Bag Attributes
-    friendlyName: clamp@clamp.onap.org
-    localKeyID: 54 69 6D 65 20 31 35 38 30 38 32 39 30 36 35 34 37 39 
-subject=CN = clamp, emailAddress = mark.d.manager@people.osaaf.com, OU = clamp@clamp.onap.org:DEV, OU = OSAAF, O = ONAP, C = US
-
-issuer=C = US, O = ONAP, OU = OSAAF, CN = intermediateCA_9
-
------BEGIN CERTIFICATE-----
-MIIEWDCCA0CgAwIBAgIILw1zyDGqB5IwDQYJKoZIhvcNAQELBQAwRzELMAkGA1UE
-BhMCVVMxDTALBgNVBAoMBE9OQVAxDjAMBgNVBAsMBU9TQUFGMRkwFwYDVQQDDBBp
-bnRlcm1lZGlhdGVDQV85MB4XDTIwMDIwNDEyMjM1MloXDTIxMDIwNDEyMjM1Mlow
-gY8xDjAMBgNVBAMMBWNsYW1wMS4wLAYJKoZIhvcNAQkBFh9tYXJrLmQubWFuYWdl
-ckBwZW9wbGUub3NhYWYuY29tMSEwHwYDVQQLDBhjbGFtcEBjbGFtcC5vbmFwLm9y
-ZzpERVYxDjAMBgNVBAsMBU9TQUFGMQ0wCwYDVQQKDARPTkFQMQswCQYDVQQGEwJV
-UzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAJMHfScyHSFzMiS9Ymjs
-6aDtwAeHPnQ0GEsHu77rShdEYLJrhKqyyqrE2c2o1BA/0yZ+Vbar9tl6lafxGTbd
-foIuaghSWuPwEw+RQJGrOC+VpY9I0ArlBw6noZS9dO5fgSxpbEmFuz1SPPb6qLXf
-uI06p8DHWxTKBqHWSMAuuoeRcOoka8h/FTkRLRqQGL+UHsDdakTnYpOKhIUlLkpu
-emPWiB98Y0rICI2pTrUtwXUWNaYg1q3bPdkyT/deb4cIOD8Ys+duHgTUqgTXQ7bY
-AzKzpgYTI++BF+tMXXcOwNfnY+aZQduRIHqTBL8J5XlS777xvpPYhak/Jnb7mm2Y
-v60CAwEAAaOB/jCB+zAJBgNVHRMEAjAAMA4GA1UdDwEB/wQEAwIF4DAgBgNVHSUB
-Af8EFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwVAYDVR0jBE0wS4AUgfeZWxC5yIze
-81Je6k5poEM+rN2hMKQuMCwxDjAMBgNVBAsMBU9TQUFGMQ0wCwYDVQQKDARPTkFQ
-MQswCQYDVQQGEwJVU4IBBzAdBgNVHQ4EFgQUzfIed+18wgFs7E6q0b6BbMICtfsw
-RwYDVR0RBEAwPoIFY2xhbXCCCmNsYW1wLW9uYXCCHWNsYW1wLmFwaS5zaW1wbGVk
-ZW1vLm9uYXAub3JnggpjbGFtcC5vbmFwMA0GCSqGSIb3DQEBCwUAA4IBAQBizhsW
-XrJ9wQy3PrBxgh90sOF15tayXPRZSFYPoQb5LhRh3IY/PvXLaSHlkgPHlCLLx36S
-0/DiVf86/83ABvyaq9gJIyg/m4ntNae23OKH1AkA1aN+JCKA8yhsAzDBcRF6Aj7E
-VJ+vQlSzz5oh+efP1e/8DUMd1/WwbTXvRd0Iqv/fyZunbjb82qNMrsK1mQ2q+87A
-0jx9u1EdeMihP6vWiuKzlwy4mKoNT573SPpvaOkjX3yDlmf2CTQZ9vdAvjmFmVsH
-1wyrNZOIgW4VjluiZfAk3mOEskrZiP/7aUXnxmNnYTpgZMbhiouLbRrTc4lLEyhx
-G7A61/KGTsLZlvxb
------END CERTIFICATE-----
diff --git a/packages/policy-gui-docker/src/main/docker/index.html b/packages/policy-gui-docker/src/main/docker/index.html
deleted file mode 100644
index 54b07f1..0000000
--- a/packages/policy-gui-docker/src/main/docker/index.html
+++ /dev/null
@@ -1,12 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-    <meta charset="utf-8">
-    <title>ONAP Policy GUI</title>
-</head>
-<body>
-    <ul>
-        <li><a href="/clamp">CLAMP Designer UI</a></li>
-    </ul>
-</body>
-</html>
diff --git a/packages/policy-gui-docker/src/main/docker/policy-gui.sh b/packages/policy-gui-docker/src/main/docker/policy-gui.sh
index 7cdefba..02d44af 100644
--- a/packages/policy-gui-docker/src/main/docker/policy-gui.sh
+++ b/packages/policy-gui-docker/src/main/docker/policy-gui.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env sh
 #
 # ============LICENSE_START=======================================================
-#  Copyright (C) 2021 Nordix Foundation.
+#  Copyright (C) 2021-2022 Nordix Foundation.
 # ================================================================================
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -19,4 +19,28 @@
 # ============LICENSE_END=========================================================
 #
 
-nginx -g "daemon off;"
+JAVA_HOME=/usr/lib/jvm/java-11-openjdk/
+export KEYSTORE="${KEYSTORE:-$POLICY_HOME/etc/ssl/policy-keystore}"
+export TRUSTSTORE="${TRUSTSTORE:-$POLICY_HOME/etc/ssl/policy-truststore}"
+export KEYSTORE_PASSWD="${KEYSTORE_PASSWD:-Pol1cy_0nap}"
+export TRUSTSTORE_PASSWD="${TRUSTSTORE_PASSWD:-Pol1cy_0nap}"
+
+if [ -f "${POLICY_HOME}/etc/mounted/policy-truststore" ]; then
+    echo "overriding policy-truststore"
+    cp -f "${POLICY_HOME}"/etc/mounted/policy-truststore "${TRUSTSTORE}"
+fi
+
+if [ -f "${POLICY_HOME}/etc/mounted/policy-keystore" ]; then
+    echo "overriding policy-keystore"
+    cp -f "${POLICY_HOME}"/etc/mounted/policy-keystore "${KEYSTORE}"
+fi
+
+if [ -f "${POLICY_HOME}/etc/mounted/logback.xml" ]; then
+    echo "overriding logback xml files"
+    cp -f "${POLICY_HOME}"/etc/mounted/logback*.xml "${POLICY_HOME}"/etc/
+fi
+
+$JAVA_HOME/bin/java \
+  -Dlogging.config="${POLICY_HOME}/etc/logback.xml" \
+  -jar /app/app.jar \
+  --spring.config.location="${POLICY_HOME}/etc/application.yml"
diff --git a/pom.xml b/pom.xml
index 01bfc06..a1a43dc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -48,6 +48,7 @@
         <module>gui-common</module>
         <module>gui-editors</module>
         <module>gui-clamp</module>
+        <module>gui-server</module>
         <module>packages</module>
     </modules>