Merge "Fix docker image tags"
diff --git a/.gitignore b/.gitignore
index 35cc9b4..8a3ca16 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,7 +2,7 @@
 !**/src/main/**
 !**/src/test/**
 **/var
-certServiceClient/certs_volume
+compose-resources/client-volume
 
 ### STS ###
 .apt_generated
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..1e4f871
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,37 @@
+all: build start-backend run-client stop-client stop-backend
+start-with-client: start-backend run-client
+.PHONY: build
+
+build:
+	@echo "##### Build Cert Service images locally #####"
+	mvn clean install -P docker
+	@echo "##### DONE #####"
+
+start-backend:
+	@echo "##### Start Cert Service #####"
+	docker-compose up -d
+	@echo "## Configure ejbca ##"
+	docker exec aafcert-ejbca /opt/primekey/scripts/ejbca-configuration.sh
+	@echo "##### DONE #####"
+
+run-client:
+	@echo "##### Create Cert Service Client volume folder: `pwd`/compose-resources/client-volume/ #####"
+	mkdir -p `pwd`/compose-resources/client-volume/
+	@echo "##### Start Cert Service Client #####"
+	docker run \
+	    --name aafcert-client \
+	    --env-file ./compose-resources/client-configuration.env \
+	    --network certservice_certservice \
+	    --mount type=bind,src=`pwd`/compose-resources/client-volume/,dst=/var/certs \
+	    onap/org.onap.aaf.certservice.aaf-certservice-client:latest
+
+stop-client:
+	@echo "##### Remove Cert Service Client #####"
+	@echo "Removing aafcert-client"
+	@docker rm aafcert-client > /dev/null 2> /dev/null || true
+	@echo "##### DONE #####"
+
+stop-backend:
+	@echo "##### Stop Cert Service #####"
+	docker-compose down
+	@echo "##### DONE #####"
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..8fabbee
--- /dev/null
+++ b/README.md
@@ -0,0 +1,88 @@
+# Cert service
+
+### General description
+
+More information about the project and all its functionalities you can find under the wiki page: 
+    ```
+    https://wiki.onap.org/display/DW/AAF+Certification+Service
+    ``` 
+  
+Project consists of two submodules:
+1. aaf-certservice-api
+2. aaf-certservice-client
+
+Detailed information about submodules can be found in ```README.md``` in their directories.
+
+### Project building
+```
+mvn clean package
+```
+
+### Install the packages into the local repository
+```
+mvn clean install
+```     
+    
+### Building Docker images and install packages into local repository
+```
+mvn clean install -P docker
+or
+make build
+```   
+
+### Running Docker containers from docker-compose with EJBCA
+Docker-compose uses a local image of certservice-api and make run-client uses a local image of certservice-client
+Build docker images locally before running docker compose command.
+```
+1. Build local images
+make build
+2. Start Cert Service with configured EJBCA
+make start-backend
+3. Run Cert Service Client
+make run-client
+3. Remove client container
+make stop-client
+4. Stop Cert Service and EJBCA
+make stop-backend
+```
+    
+### Running API with Helm
+1. Use environment/server with installed kubernetes and helm.
+2. Copy certService/helm/aaf-cert-service directory to that environment.
+3. Enter that environment 
+4. Run ```helm install ./aaf-cert-service```
+
+
+### AAF CertService CSITs
+#### CSIT repository
+```
+https://gerrit.onap.org/r/admin/repos/integration/csit
+```
+
+####How to run tests locally
+1. Checkout CSIT repository
+2. Configure CSIT local environment
+3. Inside CSIT directory execute
+```
+sudo ./run-csit.sh plans/aaf/certservice
+```
+
+####Jenkins build
+https://jenkins.onap.org/view/CSIT/job/aaf-master-csit-certservice/
+
+### Sonar results
+```     
+https://sonarcloud.io/dashboard?id=onap_aaf-certservice
+```
+    
+### Maven artifacts
+All maven artifacts are deployed under nexus uri:
+```
+https://nexus.onap.org/content/repositories/snapshots/org/onap/aaf/certservice/
+```
+        
+### Docker artifacts
+All docker images are hosted under nexus3 uri:
+```
+https://nexus3.onap.org/repository/docker.snapshot/v2/onap/org.onap.aaf.certservice.aaf-certservice-api/
+```
\ No newline at end of file
diff --git a/certService/Makefile b/certService/Makefile
deleted file mode 100644
index b1b63b4..0000000
--- a/certService/Makefile
+++ /dev/null
@@ -1,31 +0,0 @@
-all: build start stop
-.PHONY: build
-
-build:
-	@echo "##### Build Cert Service images locally #####"
-	mvn clean install -P docker
-	@echo "##### DONE #####"
-start:
-	@echo "##### Start Cert Service #####"
-	docker-compose up -d
-	@echo "## Configure ejbca ##"
-	docker exec aafcert-ejbca /opt/primekey/scripts/ejbca-configuration.sh
-	@echo "##### DONE #####"
-stop:
-	@echo "##### Stop Cert Service #####"
-	docker-compose down
-	@echo "##### DONE #####"
-
-
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/certService/README.md b/certService/README.md
index 9f23504..8e7fccc 100644
--- a/certService/README.md
+++ b/certService/README.md
@@ -48,8 +48,6 @@
 ### Building Docker image and install the package into local repository
 ```
 mvn clean install -P docker
-or
-make build
 ```   
 
 ### Running Docker container local
@@ -61,25 +59,7 @@
 ```
 docker run -p 8080:8080 --name aaf-certservice-api --mount type=bind,source=/<absolute_path>/cmpServers.json,target=/etc/onap/aaf/certservice/cmpServers.json nexus3.onap.org:10001/onap/org.onap.aaf.certservice.aaf-certservice-api:1.0.0
 ```
-
-### Running Docker container from docker-compose with EJBCA
-Docker-compose uses a local image of certservice.
-Build a docker image locally before run docker compose command.
-```
-1. Build local image
-make build
-2. Start Cert Service with configured EJBCA
-make start
-3. Stop containers
-make stop
-```
     
-### Running with Helm
-1. Use environment/server with installed kubernetes and helm.
-2. Copy helm/aaf-cert-service directory to that environment.
-3. Enter that environment 
-4. Run ```helm install ./aaf-cert-service```
-
 ### Health Check
 Browser:
 ```
@@ -92,23 +72,6 @@
 ```   
  Should return {"status":"UP"}
 
-### AAF CertService CSITs
-#### CSIT repository
-```
-https://gerrit.onap.org/r/admin/repos/integration/csit
-```
-
-####How to run tests locally
-1. Checkout CSIT repository
-2. Configure CSIT local environment
-3. Inside CSIT directory execute
-```
-sudo ./run-csit.sh plans/aaf/certservice
-```
-
-####Jenkins build
-https://jenkins.onap.org/view/CSIT/job/aaf-master-csit-certservice/
-
 ### Logs locally
 
 path: 
@@ -127,31 +90,9 @@
 You should see:    
 audit.log  error.log  trace.log
 
-### Sonar results
-```     
-https://sonarcloud.io/dashboard?id=onap_aaf-certservice
-```
-    
-### Maven artifacts
-All maven artifacts are deployed under nexus uri:
-```
-https://nexus.onap.org/content/repositories/snapshots/org/onap/aaf/certservice/
-```
-        
-### Docker artifacts
-All docker images are hosted under nexus3 uri:
-```
-https://nexus3.onap.org/repository/docker.snapshot/v2/onap/org.onap.aaf.certservice.aaf-certservice-api/
-```
-
 ### RestAPI
 API is described by Swagger ( OpenAPI 3.0 ) on endpoint /docs 
 ( endpoint is defined in properties as springdoc.swagger-ui.path )
 ```
 http://localchost:8080/docs
-```
-
-### Sonar results
-```     
-https://sonarcloud.io/dashboard?id=onap_aaf-certservice
-```
+```
\ No newline at end of file
diff --git a/certServiceClient/README.md b/certServiceClient/README.md
index 092eb32..111db8f 100644
--- a/certServiceClient/README.md
+++ b/certServiceClient/README.md
@@ -69,11 +69,11 @@
 ```
 0	Success
 1	Invalid client configuration
-2	Invalid CSR data 
-3	Failed key pair generation
-4	Failed CSR generation
-5	API return unsuccessful response
-6	Problem with Http Client connection
-7	Failed PKCS12 conversion
-8	Failed Private Key to PEM Encoding
-```
\ No newline at end of file
+2	Invalid CSR configuration 
+3	Fail in key pair generation
+4	Fail in  CSR generation
+5	CertService HTTP unsuccessful response
+6	Internal HTTP Client connection problem
+7	Fail in PKCS12 conversion
+8	Fail in Private Key to PEM Encoding
+```
diff --git a/certServiceClient/docker-compose.yml b/certServiceClient/docker-compose.yml
deleted file mode 100644
index b0c65be..0000000
--- a/certServiceClient/docker-compose.yml
+++ /dev/null
@@ -1,59 +0,0 @@
-version: "2.1"
-
-services:
-  ejbca:
-    image: primekey/ejbca-ce:6.15.2.5
-    hostname: cahostname
-    container_name: aafcert-ejbca
-    ports:
-      - "80:8080"
-      - "443:8443"
-    volumes:
-      - ../certService/src/main/resources/scripts/:/opt/primekey/scripts
-    command: bash -c "
-      ./scripts/ejbca-configuration.sh &
-      /opt/primekey/bin/start.sh
-      "
-    healthcheck:
-      test: ["CMD-SHELL", "curl -kI https://localhost:8443/ejbca/publicweb/healthcheck/ejbcahealth"]
-      interval: 20s
-      timeout: 3s
-      retries: 9
-    networks:
-      - certservice
-
-  certservice:
-    image: onap/org.onap.aaf.certservice.aaf-certservice-api:latest
-    volumes:
-      - ../certService/helm/aaf-cert-service/resources/cmpServers.json:/etc/onap/aaf/certservice/cmpServers.json
-    container_name: aafcert-service
-    ports:
-      - "8080:8080"
-    depends_on:
-      ejbca:
-        condition: service_healthy
-    healthcheck:
-      test: ["CMD-SHELL", "curl -f http://localhost:8080/actuator/health"]
-      interval: 10s
-      timeout: 3s
-      retries: 9
-    networks:
-      - certservice
-
-  certservice-client:
-    image: onap/org.onap.aaf.certservice.aaf-certservice-client:latest
-    container_name: aafcert-client
-    env_file:
-      - ./client_docker.env
-    user: root #Run as root to avoid volume permission issues
-    volumes:
-      - ./certs_volume/:/var/certs
-    depends_on:
-      certservice:
-        condition: service_healthy
-    networks:
-      - certservice
-
-networks:
-  certservice:
-    driver: bridge
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/AppExitHandler.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/AppExitHandler.java
index e29142e..caeca37 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/AppExitHandler.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/AppExitHandler.java
@@ -18,14 +18,16 @@
  */
 package org.onap.aaf.certservice.client;
 
+import org.onap.aaf.certservice.client.api.ExitStatus;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 public class AppExitHandler {
-    public static final Logger LOGGER = LoggerFactory.getLogger(AppExitHandler.class);
+    private static final Logger LOGGER = LoggerFactory.getLogger(AppExitHandler.class);
 
-    public void exit(int exitCode) {
-        LOGGER.debug("Application exits with following exit code: {}", exitCode);
-        System.exit(exitCode);
+    public void exit(ExitStatus exitStatus) {
+        LOGGER.info(String.format("Application exits with following exit code: %s and message: %s",
+                exitStatus.getExitCodeValue(), exitStatus.getMessage()));
+        System.exit(exitStatus.getExitCodeValue());
     }
-}
\ No newline at end of file
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/CertServiceClient.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/CertServiceClient.java
index d3d7f26..0916bb8 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/CertServiceClient.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/CertServiceClient.java
@@ -36,13 +36,17 @@
 import org.onap.aaf.certservice.client.httpclient.CloseableHttpClientProvider;
 import org.onap.aaf.certservice.client.httpclient.HttpClient;
 import org.onap.aaf.certservice.client.httpclient.model.CertServiceResponse;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
-import static org.onap.aaf.certservice.client.api.ExitCode.SUCCESS_EXIT_CODE;
+import static org.onap.aaf.certservice.client.api.ExitStatus.SUCCESS;
 import static org.onap.aaf.certservice.client.certification.EncryptionAlgorithmConstants.KEY_SIZE;
 import static org.onap.aaf.certservice.client.certification.EncryptionAlgorithmConstants.RSA_ENCRYPTION_ALGORITHM;
 
 public class CertServiceClient {
 
+    private static final Logger LOGGER = LoggerFactory.getLogger(CertServiceClient.class);
+
     private AppExitHandler appExitHandler;
 
     public CertServiceClient(AppExitHandler appExitHandler) {
@@ -74,8 +78,9 @@
             filesCreator.createKeystore(certServiceData.getCertificateChain(), keyPair.getPrivate());
             filesCreator.createTruststore(certServiceData.getTrustedCertificates());
         } catch (ExitableException e) {
-            appExitHandler.exit(e.applicationExitCode());
+            LOGGER.error("Cert Service Client fail in execution: ", e);
+            appExitHandler.exit(e.applicationExitStatus());
         }
-        appExitHandler.exit(SUCCESS_EXIT_CODE.getValue());
+        appExitHandler.exit(SUCCESS);
     }
 }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/api/ExitCode.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/api/ExitCode.java
deleted file mode 100644
index 670cbe9..0000000
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/api/ExitCode.java
+++ /dev/null
@@ -1,41 +0,0 @@
-/*============LICENSE_START=======================================================
- * aaf-certservice-client
- * ================================================================================
- * Copyright (C) 2020 Nokia. All rights reserved.
- * ================================================================================
- * 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=========================================================
- */
-package org.onap.aaf.certservice.client.api;
-
-public enum ExitCode {
-    SUCCESS_EXIT_CODE(0),
-    CLIENT_CONFIGURATION_EXCEPTION(1),
-    CSR_CONFIGURATION_EXCEPTION(2),
-    KEY_PAIR_GENERATION_EXCEPTION(3),
-    CSR_GENERATION_EXCEPTION(4),
-    CERT_SERVICE_API_CONNECTION_EXCEPTION(5),
-    HTTP_CLIENT_EXCEPTION(6),
-    PKCS12_CONVERSION_EXCEPTION(7),
-    PK_TO_PEM_ENCODING_EXCEPTION(8);
-
-    private final int value;
-
-    ExitCode(int value) {
-        this.value = value;
-    }
-
-    public int getValue() {
-        return value;
-    }
-}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/api/ExitStatus.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/api/ExitStatus.java
new file mode 100644
index 0000000..c474fd0
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/api/ExitStatus.java
@@ -0,0 +1,48 @@
+/*============LICENSE_START=======================================================
+ * aaf-certservice-client
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. All rights reserved.
+ * ================================================================================
+ * 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=========================================================
+ */
+package org.onap.aaf.certservice.client.api;
+
+public enum ExitStatus {
+
+    SUCCESS(0, "Success"),
+    CLIENT_CONFIGURATION_EXCEPTION(1,"Invalid client configuration"),
+    CSR_CONFIGURATION_EXCEPTION(2,"Invalid CSR configuration"),
+    KEY_PAIR_GENERATION_EXCEPTION(3,"Fail in key pair generation"),
+    CSR_GENERATION_EXCEPTION(4,"Fail in CSR generation"),
+    CERT_SERVICE_API_CONNECTION_EXCEPTION(5,"CertService HTTP unsuccessful response"),
+    HTTP_CLIENT_EXCEPTION(6,"Internal HTTP Client connection problem"),
+    PKCS12_CONVERSION_EXCEPTION(7,"Fail in PKCS12 conversion"),
+    PK_TO_PEM_ENCODING_EXCEPTION(8,"Fail in Private Key to PEM Encoding");
+
+    private final int value;
+    private final String message;
+
+    ExitStatus(int value, String message) {
+        this.value = value;
+        this.message = message;
+    }
+
+    public int getExitCodeValue() {
+        return value;
+    }
+
+    public String getMessage(){
+        return message;
+    }
+}
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/api/ExitableException.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/api/ExitableException.java
index f9166c9..fc1bc76 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/api/ExitableException.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/api/ExitableException.java
@@ -26,5 +26,5 @@
     public ExitableException(String message) {
         super(message);
     }
-    public abstract int applicationExitCode();
+    public abstract ExitStatus applicationExitStatus();
 }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/CsrFactory.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/CsrFactory.java
index 83fa6d4..b536127 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/CsrFactory.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/CsrFactory.java
@@ -40,9 +40,7 @@
 import javax.security.auth.x500.X500Principal;
 import java.io.IOException;
 import java.io.StringWriter;
-import java.nio.charset.StandardCharsets;
 import java.security.KeyPair;
-import java.util.Base64;
 import java.util.Optional;
 
 import static org.onap.aaf.certservice.client.certification.EncryptionAlgorithmConstants.COMMON_NAME;
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/KeyPairFactory.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/KeyPairFactory.java
index 6413686..5d56f08 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/KeyPairFactory.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/KeyPairFactory.java
@@ -41,7 +41,7 @@
         try {
             return createKeyPairGenerator().generateKeyPair();
         } catch (NoSuchAlgorithmException e) {
-            LOGGER.error("Generation of KeyPair failed, exception message: " + e.getMessage());
+            LOGGER.error("Generation of KeyPair failed, exception message: {}" , e.getMessage());
             throw new KeyPairGenerationException(e);
         }
     }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/PrivateKeyToPemEncoder.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/PrivateKeyToPemEncoder.java
index 7799595..4e88a80 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/PrivateKeyToPemEncoder.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/PrivateKeyToPemEncoder.java
@@ -43,7 +43,7 @@
         try (JcaPEMWriter pemWriter = new JcaPEMWriter(stringWriter)) {
             pemWriter.writeObject(new PemObject(PEM_OBJECT_TYPE, pk.getEncoded()));
         } catch (IOException e) {
-            LOGGER.error("Exception occurred during encoding PrivateKey to PEM", e);
+            LOGGER.error("Encode of private key to PEM failed. Exception message: {}", e.getMessage());
             throw new PkEncodingException(e);
         }
         return stringWriter.toString();
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/conversion/PKCS12FilesCreator.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/conversion/PKCS12FilesCreator.java
index d8c41bf..8e6fb89 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/conversion/PKCS12FilesCreator.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/conversion/PKCS12FilesCreator.java
@@ -66,7 +66,7 @@
         try (FileOutputStream fos = new FileOutputStream(path)) {
             fos.write(data);
         } catch (IOException e) {
-            LOGGER.error("PKCS12 files creation failed", e);
+            LOGGER.error("PKCS12 files creation failed, exception message: {}", e.getMessage());
             throw new PemToPKCS12ConverterException(e);
         }
     }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/conversion/PemToPKCS12Converter.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/conversion/PemToPKCS12Converter.java
index eab9bf7..8c794e7 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/conversion/PemToPKCS12Converter.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/conversion/PemToPKCS12Converter.java
@@ -79,7 +79,7 @@
             ks.store(bos, password.toCharArray());
             return bos.toByteArray();
         } catch (IOException | CertificateException | NoSuchAlgorithmException | KeyStoreException e) {
-            LOGGER.error("Pem to PKCS12 converter failed", e);
+            LOGGER.error("Pem to PKCS12 converter failed, exception message: {}", e.getMessage());
             throw new PemToPKCS12ConverterException(e);
         }
     }
@@ -126,7 +126,7 @@
                 .setProvider(new BouncyCastleProvider())
                 .getCertificate(certHolder);
         } catch (IOException | CertificateException e) {
-            LOGGER.error("Certificates conversion failed", e);
+            LOGGER.error("Certificates conversion failed, exception message: {}", e.getMessage());
             throw new PemToPKCS12ConverterException(e);
         }
     }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/CsrGenerationException.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/CsrGenerationException.java
index c1d4afd..8c93a22 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/CsrGenerationException.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/CsrGenerationException.java
@@ -19,17 +19,17 @@
 
 package org.onap.aaf.certservice.client.certification.exception;
 
-import org.onap.aaf.certservice.client.api.ExitCode;
+import org.onap.aaf.certservice.client.api.ExitStatus;
 import org.onap.aaf.certservice.client.api.ExitableException;
 
 public class CsrGenerationException extends ExitableException {
-    private static final ExitCode EXIT_CODE = ExitCode.CSR_GENERATION_EXCEPTION;
+    private static final ExitStatus EXIT_STATUS = ExitStatus.CSR_GENERATION_EXCEPTION;
 
     public CsrGenerationException(Throwable e) {
         super(e);
     }
 
-    public int applicationExitCode() {
-        return EXIT_CODE.getValue();
+    public ExitStatus applicationExitStatus() {
+        return EXIT_STATUS;
     }
 }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/KeyPairGenerationException.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/KeyPairGenerationException.java
index 6af6988..d03c819 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/KeyPairGenerationException.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/KeyPairGenerationException.java
@@ -18,17 +18,17 @@
  */
 package org.onap.aaf.certservice.client.certification.exception;
 
-import org.onap.aaf.certservice.client.api.ExitCode;
+import org.onap.aaf.certservice.client.api.ExitStatus;
 import org.onap.aaf.certservice.client.api.ExitableException;
 
 public class KeyPairGenerationException extends ExitableException {
-    private static final ExitCode EXIT_CODE = ExitCode.KEY_PAIR_GENERATION_EXCEPTION;
+    private static final ExitStatus EXIT_STATUS = ExitStatus.KEY_PAIR_GENERATION_EXCEPTION;
 
     public KeyPairGenerationException(Throwable e) {
         super(e);
     }
 
-    public int applicationExitCode() {
-        return EXIT_CODE.getValue();
+    public ExitStatus applicationExitStatus() {
+        return EXIT_STATUS;
     }
 }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/PemToPKCS12ConverterException.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/PemToPKCS12ConverterException.java
index 87020d6..b98f4ac 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/PemToPKCS12ConverterException.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/PemToPKCS12ConverterException.java
@@ -19,11 +19,11 @@
 
 package org.onap.aaf.certservice.client.certification.exception;
 
-import org.onap.aaf.certservice.client.api.ExitCode;
+import org.onap.aaf.certservice.client.api.ExitStatus;
 import org.onap.aaf.certservice.client.api.ExitableException;
 
 public class PemToPKCS12ConverterException extends ExitableException {
-    private static final ExitCode EXIT_CODE = ExitCode.PKCS12_CONVERSION_EXCEPTION;
+    private static final ExitStatus EXIT_STATUS = ExitStatus.PKCS12_CONVERSION_EXCEPTION;
 
     public PemToPKCS12ConverterException(Throwable e) {
         super(e);
@@ -33,7 +33,7 @@
     }
 
     @Override
-    public int applicationExitCode() {
-        return EXIT_CODE.getValue();
+    public ExitStatus applicationExitStatus() {
+        return EXIT_STATUS;
     }
 }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/PkEncodingException.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/PkEncodingException.java
index 596a6a4..20d623a 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/PkEncodingException.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/certification/exception/PkEncodingException.java
@@ -19,17 +19,17 @@
 
 package org.onap.aaf.certservice.client.certification.exception;
 
-import org.onap.aaf.certservice.client.api.ExitCode;
+import org.onap.aaf.certservice.client.api.ExitStatus;
 import org.onap.aaf.certservice.client.api.ExitableException;
 
 public class PkEncodingException extends ExitableException {
-    private static final ExitCode EXIT_CODE = ExitCode.PK_TO_PEM_ENCODING_EXCEPTION;
+    private static final ExitStatus EXIT_STATUS = ExitStatus.PK_TO_PEM_ENCODING_EXCEPTION;
 
     public PkEncodingException(Throwable e) {
         super(e);
     }
 
-    public int applicationExitCode() {
-        return EXIT_CODE.getValue();
+    public ExitStatus applicationExitStatus() {
+        return EXIT_STATUS;
     }
 }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/configuration/exception/ClientConfigurationException.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/configuration/exception/ClientConfigurationException.java
index 5d968f4..f9360d7 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/configuration/exception/ClientConfigurationException.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/configuration/exception/ClientConfigurationException.java
@@ -19,17 +19,17 @@
  */
 package org.onap.aaf.certservice.client.configuration.exception;
 
-import org.onap.aaf.certservice.client.api.ExitCode;
+import org.onap.aaf.certservice.client.api.ExitStatus;
 import org.onap.aaf.certservice.client.api.ExitableException;
 
 public class ClientConfigurationException extends ExitableException {
-    private static final ExitCode EXIT_CODE = ExitCode.CLIENT_CONFIGURATION_EXCEPTION;
+    private static final ExitStatus EXIT_STATUS = ExitStatus.CLIENT_CONFIGURATION_EXCEPTION;
 
     public ClientConfigurationException(String message) {
         super(message);
     }
 
-    public int applicationExitCode() {
-        return EXIT_CODE.getValue();
+    public ExitStatus applicationExitStatus() {
+        return EXIT_STATUS;
     }
 }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/configuration/exception/CsrConfigurationException.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/configuration/exception/CsrConfigurationException.java
index f937311..a7cf4f7 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/configuration/exception/CsrConfigurationException.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/configuration/exception/CsrConfigurationException.java
@@ -19,17 +19,17 @@
  */
 package org.onap.aaf.certservice.client.configuration.exception;
 
-import org.onap.aaf.certservice.client.api.ExitCode;
+import org.onap.aaf.certservice.client.api.ExitStatus;
 import org.onap.aaf.certservice.client.api.ExitableException;
 
 public class CsrConfigurationException extends ExitableException {
-    private static final ExitCode EXIT_CODE = ExitCode.CSR_CONFIGURATION_EXCEPTION;
+    private static final ExitStatus EXIT_STATUS = ExitStatus.CSR_CONFIGURATION_EXCEPTION;
 
     public CsrConfigurationException(String message) {
         super(message);
     }
 
-    public int applicationExitCode() {
-        return EXIT_CODE.getValue();
+    public ExitStatus applicationExitStatus() {
+        return EXIT_STATUS;
     }
 }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/HttpClient.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/HttpClient.java
index 30f881b..0cb8805 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/HttpClient.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/HttpClient.java
@@ -63,14 +63,18 @@
             return extractCertServiceResponse(httpResponse);
 
         } catch (IOException e) {
-            LOGGER.error("Failed execute request to API for URL: {}{} . Exception message: {}",
+            LOGGER.error("Failed execute request to API for URL: {}{} , exception message: {}",
                     certServiceAddress, caName, e.getMessage());
             throw new HttpClientException(e);
         }
     }
 
-    private int getStatusCode(HttpResponse httpResponse) {
-        return httpResponse.getStatusLine().getStatusCode();
+    private HttpGet createHttpRequest(String caName, String csr, String pk) {
+        String url = certServiceAddress + caName;
+        HttpGet httpGet = new HttpGet(url);
+        httpGet.addHeader(CSR_HEADER_NAME, csr);
+        httpGet.addHeader(PK_HEADER_NAME, pk);
+        return httpGet;
     }
 
     private CertServiceResponse extractCertServiceResponse(HttpResponse httpResponse)
@@ -84,34 +88,25 @@
         return gson.fromJson(jsonResponse, CertServiceResponse.class);
     }
 
-    private String getStringResponse(HttpEntity httpEntity) throws HttpClientException {
-        try {
-            return EntityUtils.toString(httpEntity, CHARSET_UTF_8);
-        } catch (IOException e) {
-            LOGGER.error("Cannot parse response to string", e);
-            throw new HttpClientException(e);
-        }
-    }
-
-    private HttpGet createHttpRequest(String caName, String csr, String pk) {
-        String url = certServiceAddress + caName;
-        HttpGet httpGet = new HttpGet(url);
-        httpGet.addHeader(CSR_HEADER_NAME, csr);
-        httpGet.addHeader(PK_HEADER_NAME, pk);
-        return httpGet;
-    }
-
-
     private CertServiceApiResponseException generateApiResponseException(HttpResponse httpResponse)
             throws HttpClientException {
         String stringResponse = getStringResponse(httpResponse.getEntity());
         ErrorCertServiceResponse errorCertServiceResponse =
                 gson.fromJson(stringResponse, ErrorCertServiceResponse.class);
 
-        String messageFromApi = errorCertServiceResponse.getMessage();
-        String path = errorCertServiceResponse.getPath();
-        int httpResponseCode = getStatusCode(httpResponse);
+        return new CertServiceApiResponseException(getStatusCode(httpResponse), errorCertServiceResponse.getMessage());
+    }
 
-        return new CertServiceApiResponseException(certServiceAddress + path, httpResponseCode, messageFromApi);
+    private int getStatusCode(HttpResponse httpResponse) {
+        return httpResponse.getStatusLine().getStatusCode();
+    }
+
+    private String getStringResponse(HttpEntity httpEntity) throws HttpClientException {
+        try {
+            return EntityUtils.toString(httpEntity, CHARSET_UTF_8);
+        } catch (IOException e) {
+            LOGGER.error("Cannot parse response to string, exception message: {}", e.getMessage());
+            throw new HttpClientException(e);
+        }
     }
 }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/exception/CertServiceApiResponseException.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/exception/CertServiceApiResponseException.java
index 7286318..151c2a1 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/exception/CertServiceApiResponseException.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/exception/CertServiceApiResponseException.java
@@ -20,23 +20,22 @@
 
 package org.onap.aaf.certservice.client.httpclient.exception;
 
-import org.onap.aaf.certservice.client.api.ExitCode;
+import org.onap.aaf.certservice.client.api.ExitStatus;
 import org.onap.aaf.certservice.client.api.ExitableException;
 
 public class CertServiceApiResponseException extends ExitableException {
-    private static final ExitCode EXIT_CODE = ExitCode.CERT_SERVICE_API_CONNECTION_EXCEPTION;
+    private static final ExitStatus EXIT_STATUS = ExitStatus.CERT_SERVICE_API_CONNECTION_EXCEPTION;
 
-    public CertServiceApiResponseException(String url, int responseCode, String messageFromAPI) {
+    public CertServiceApiResponseException(int responseCode, String messageFromAPI) {
 
-        super(String.format("Request failed for URL '%s'. Response code: %d . Message from API: %s",
-                url,
+        super(String.format("CertService HTTP unsuccessful response. Response code: %d . Message from Service: %s",
                 responseCode,
                 messageFromAPI));
     }
 
     @Override
-    public int applicationExitCode() {
-        return EXIT_CODE.getValue();
+    public ExitStatus applicationExitStatus() {
+        return EXIT_STATUS;
     }
 
 }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/exception/HttpClientException.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/exception/HttpClientException.java
index 28f8307..697d152 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/exception/HttpClientException.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/exception/HttpClientException.java
@@ -20,18 +20,18 @@
 
 package org.onap.aaf.certservice.client.httpclient.exception;
 
-import org.onap.aaf.certservice.client.api.ExitCode;
+import org.onap.aaf.certservice.client.api.ExitStatus;
 import org.onap.aaf.certservice.client.api.ExitableException;
 
 public class HttpClientException extends ExitableException {
-    private static final ExitCode EXIT_CODE = ExitCode.HTTP_CLIENT_EXCEPTION;
+    private static final ExitStatus EXIT_STATUS = ExitStatus.HTTP_CLIENT_EXCEPTION;
 
-    public HttpClientException(Throwable e) {
+    public HttpClientException(Throwable e){
         super(e);
     }
 
     @Override
-    public int applicationExitCode() {
-        return EXIT_CODE.getValue();
+    public ExitStatus applicationExitStatus() {
+        return EXIT_STATUS;
     }
 }
diff --git a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/model/ErrorCertServiceResponse.java b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/model/ErrorCertServiceResponse.java
index 6fe99ce..4a9efcb 100644
--- a/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/model/ErrorCertServiceResponse.java
+++ b/certServiceClient/src/main/java/org/onap/aaf/certservice/client/httpclient/model/ErrorCertServiceResponse.java
@@ -22,19 +22,14 @@
 
 public class ErrorCertServiceResponse {
 
-    private final String message;
-    private final String path;
+    private final String errorMessage;
 
-    public ErrorCertServiceResponse(String message, String path) {
-        this.message = message;
-        this.path = path;
+    public ErrorCertServiceResponse(String errorMessage) {
+        this.errorMessage = errorMessage;
     }
 
     public String getMessage() {
-        return message;
+        return errorMessage;
     }
 
-    public String getPath() {
-        return path;
-    }
 }
diff --git a/certServiceClient/src/test/java/org/onap/aaf/certservice/client/CertServiceClientTest.java b/certServiceClient/src/test/java/org/onap/aaf/certservice/client/CertServiceClientTest.java
index 9e73301..7e7bf5d 100644
--- a/certServiceClient/src/test/java/org/onap/aaf/certservice/client/CertServiceClientTest.java
+++ b/certServiceClient/src/test/java/org/onap/aaf/certservice/client/CertServiceClientTest.java
@@ -25,8 +25,8 @@
 
 import static org.mockito.Mockito.doNothing;
 import static org.mockito.Mockito.verify;
-import static org.onap.aaf.certservice.client.api.ExitCode.CLIENT_CONFIGURATION_EXCEPTION;
-import static org.onap.aaf.certservice.client.api.ExitCode.SUCCESS_EXIT_CODE;
+import static org.onap.aaf.certservice.client.api.ExitStatus.CLIENT_CONFIGURATION_EXCEPTION;
+import static org.onap.aaf.certservice.client.api.ExitStatus.SUCCESS;
 
 @ExtendWith(MockitoExtension.class)
 class CertServiceClientTest {
@@ -35,13 +35,13 @@
     @Test
     public void shouldExitWithDefinedExitCode_onRunCallWhenNoEnvsPresent() {
         //  given
-        doNothing().when(appExitHandler).exit(CLIENT_CONFIGURATION_EXCEPTION.getValue());
-        doNothing().when(appExitHandler).exit(SUCCESS_EXIT_CODE.getValue());
+        doNothing().when(appExitHandler).exit(CLIENT_CONFIGURATION_EXCEPTION);
+        doNothing().when(appExitHandler).exit(SUCCESS);
         CertServiceClient certServiceClient = new CertServiceClient(appExitHandler);
         //  when
         certServiceClient.run();
         //  then
-        verify(appExitHandler).exit(CLIENT_CONFIGURATION_EXCEPTION.getValue());
-        verify(appExitHandler).exit(SUCCESS_EXIT_CODE.getValue());
+        verify(appExitHandler).exit(CLIENT_CONFIGURATION_EXCEPTION);
+        verify(appExitHandler).exit(SUCCESS);
     }
-}
\ No newline at end of file
+}
diff --git a/certServiceClient/src/test/java/org/onap/aaf/certservice/client/DummyExitableException.java b/certServiceClient/src/test/java/org/onap/aaf/certservice/client/DummyExitableException.java
deleted file mode 100644
index 80a2f72..0000000
--- a/certServiceClient/src/test/java/org/onap/aaf/certservice/client/DummyExitableException.java
+++ /dev/null
@@ -1,35 +0,0 @@
-/*============LICENSE_START=======================================================
- * aaf-certservice-client
- * ================================================================================
- * Copyright (C) 2020 Nokia. All rights reserved.
- * ================================================================================
- * 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=========================================================
- */
-package org.onap.aaf.certservice.client;
-
-import org.onap.aaf.certservice.client.api.ExitableException;
-
-class DummyExitableException extends ExitableException {
-    private static final int EXIT_CODE = 888;
-
-    DummyExitableException() {
-        super("This is Test Exitable Exception");
-    }
-
-    @Override
-    public int applicationExitCode() {
-        return EXIT_CODE;
-    }
-
-}
diff --git a/certServiceClient/src/test/java/org/onap/aaf/certservice/client/configuration/model/CsrConfigurationFactoryTest.java b/certServiceClient/src/test/java/org/onap/aaf/certservice/client/configuration/model/CsrConfigurationFactoryTest.java
index bb566e8..6ab1bff 100644
--- a/certServiceClient/src/test/java/org/onap/aaf/certservice/client/configuration/model/CsrConfigurationFactoryTest.java
+++ b/certServiceClient/src/test/java/org/onap/aaf/certservice/client/configuration/model/CsrConfigurationFactoryTest.java
@@ -23,19 +23,18 @@
 import org.assertj.core.api.Condition;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.onap.aaf.certservice.client.api.ExitCode;
 import org.onap.aaf.certservice.client.configuration.CsrConfigurationEnvs;
 import org.onap.aaf.certservice.client.configuration.EnvsForCsr;
 import org.onap.aaf.certservice.client.configuration.exception.CsrConfigurationException;
 import org.onap.aaf.certservice.client.configuration.factory.CsrConfigurationFactory;
 
 import java.util.Optional;
-import java.util.function.Predicate;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
+import static org.onap.aaf.certservice.client.api.ExitStatus.CSR_CONFIGURATION_EXCEPTION;
 
 public class CsrConfigurationFactoryTest {
 
@@ -55,7 +54,7 @@
     private Condition<CsrConfigurationException> expectedExitCodeCondition = new Condition<>("Correct exit code"){
         @Override
         public boolean matches(CsrConfigurationException e) {
-            return e.applicationExitCode() == ExitCode.CSR_CONFIGURATION_EXCEPTION.getValue();
+            return e.applicationExitStatus() == CSR_CONFIGURATION_EXCEPTION;
         }
     };
 
diff --git a/certServiceClient/src/test/java/org/onap/aaf/certservice/client/httpclient/HttpClientTest.java b/certServiceClient/src/test/java/org/onap/aaf/certservice/client/httpclient/HttpClientTest.java
index 461b7a3..2a53941 100644
--- a/certServiceClient/src/test/java/org/onap/aaf/certservice/client/httpclient/HttpClientTest.java
+++ b/certServiceClient/src/test/java/org/onap/aaf/certservice/client/httpclient/HttpClientTest.java
@@ -27,7 +27,6 @@
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.onap.aaf.certservice.client.api.ExitCode;
 import org.onap.aaf.certservice.client.httpclient.exception.CertServiceApiResponseException;
 import org.onap.aaf.certservice.client.httpclient.exception.HttpClientException;
 import org.onap.aaf.certservice.client.httpclient.model.CertServiceResponse;
@@ -38,9 +37,8 @@
 
 import static java.net.HttpURLConnection.HTTP_BAD_REQUEST;
 import static java.net.HttpURLConnection.HTTP_OK;
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertNotNull;
-import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
@@ -89,60 +87,49 @@
         List<String> trustedCertificate = certServiceResponse.getTrustedCertificates();
 
         // then
-        assertNotNull(certServiceResponse);
+        assertThat(certServiceResponse).isNotNull();
 
         final int expectedTwoElements = 2;
-        assertEquals(expectedTwoElements, certificateChain.size());
-        assertEquals(expectedTwoElements, trustedCertificate.size());
 
-        assertEquals(EXPECTED_FIRST_ELEMENT_OF_CERTIFICATE_CHAIN, certificateChain.get(0));
-        assertEquals(EXPECTED_FIRST_ELEMENT_OF_TRUSTED_CERTIFICATES, trustedCertificate.get(0));
+        assertThat(certificateChain).hasSize(expectedTwoElements);
+        assertThat(trustedCertificate).hasSize(expectedTwoElements);
+
+        assertThat(certificateChain.get(0)).isEqualTo(EXPECTED_FIRST_ELEMENT_OF_CERTIFICATE_CHAIN);
+        assertThat(trustedCertificate.get(0)).isEqualTo(EXPECTED_FIRST_ELEMENT_OF_TRUSTED_CERTIFICATES);
     }
 
     @Test
     void shouldThrowCertServiceApiResponseException_WhenPkHeaderIsMissing() throws Exception {
 
-        // given
+        //given
         mockServerResponse(HTTP_BAD_REQUEST, MISSING_PK_RESPONSE);
 
-        // when
-        CertServiceApiResponseException exception =
-                assertThrows(CertServiceApiResponseException.class,
-                        () -> httpClient.retrieveCertServiceData(CA_NAME, CSR, ""));
-
-        // then
-        assertEquals(ExitCode.CERT_SERVICE_API_CONNECTION_EXCEPTION.getValue(), exception.applicationExitCode());
+        //when //then
+        assertThatExceptionOfType(CertServiceApiResponseException.class)
+                .isThrownBy(()->httpClient.retrieveCertServiceData(CA_NAME, CSR, ""));
     }
 
     @Test
-    void shouldThrowHttpClientException_WhenCannotExecuteRequestToAPI() throws Exception{
+    void shouldThrowHttpClientException_WhenCannotExecuteRequestToAPI() throws Exception {
 
         //given
         when(closeableHttpClient.execute(any(HttpGet.class))).thenThrow(IOException.class);
 
-        //when
-        HttpClientException exception =
-                assertThrows(HttpClientException.class,
-                        () -> httpClient.retrieveCertServiceData(CA_NAME, CSR, ""));
-
-        //then
-        assertEquals(ExitCode.HTTP_CLIENT_EXCEPTION.getValue(), exception.applicationExitCode());
+        //when //then
+        assertThatExceptionOfType(HttpClientException.class)
+                .isThrownBy(()->httpClient.retrieveCertServiceData(CA_NAME, CSR, ""));
     }
 
     @Test
-    void shouldThrowHttpClientException_WhenCannotParseResponseToString() throws Exception{
+    void shouldThrowHttpClientException_WhenCannotParseResponseToString() throws Exception {
 
         //given
         mockServerResponse(HTTP_OK, CORRECT_RESPONSE);
         when(httpEntity.getContent()).thenThrow(IOException.class);
 
-        //when
-        HttpClientException exception =
-                assertThrows(HttpClientException.class,
-                        () -> httpClient.retrieveCertServiceData(CA_NAME, CSR, ""));
-
-        //then
-        assertEquals(ExitCode.HTTP_CLIENT_EXCEPTION.getValue(), exception.applicationExitCode());
+        //when //then
+        assertThatExceptionOfType(HttpClientException.class)
+                .isThrownBy(()->httpClient.retrieveCertServiceData(CA_NAME, CSR, ""));
     }
 
     private void mockServerResponse(int serverCodeResponse, String stringResponse)
diff --git a/certServiceClient/client_docker.env b/compose-resources/client-configuration.env
similarity index 79%
rename from certServiceClient/client_docker.env
rename to compose-resources/client-configuration.env
index f269717..e79aa61 100644
--- a/certServiceClient/client_docker.env
+++ b/compose-resources/client-configuration.env
@@ -1,5 +1,5 @@
 #Client envs
-REQUEST_URL=http://certservice:8080/v1/certificate/
+REQUEST_URL=http://aafcert-service:8080/v1/certificate/
 REQUEST_TIMEOUT=1000
 OUTPUT_PATH=/var/certs
 CA_NAME=RA
diff --git a/certService/src/main/resources/scripts/ejbca-configuration.sh b/compose-resources/ejbca-configuration.sh
similarity index 100%
rename from certService/src/main/resources/scripts/ejbca-configuration.sh
rename to compose-resources/ejbca-configuration.sh
diff --git a/certService/docker-compose.yml b/docker-compose.yml
similarity index 73%
rename from certService/docker-compose.yml
rename to docker-compose.yml
index 2f4f4b4..851ad31 100644
--- a/certService/docker-compose.yml
+++ b/docker-compose.yml
@@ -9,23 +9,20 @@
       - "80:8080"
       - "443:8443"
     volumes:
-      - ./src/main/resources/scripts/:/opt/primekey/scripts
-    command: bash -c "
-      /opt/primekey/bin/start.sh
-      "
+      - ./compose-resources/ejbca-configuration.sh:/opt/primekey/scripts/ejbca-configuration.sh
     healthcheck:
       test: ["CMD-SHELL", "curl -kI https://localhost:8443/ejbca/publicweb/healthcheck/ejbcahealth"]
       interval: 10s
       timeout: 3s
-      retries: 9
+      retries: 15
     networks:
       - certservice
 
   certservice:
     image: onap/org.onap.aaf.certservice.aaf-certservice-api:latest
-    volumes:
-      - ./helm/aaf-cert-service/resources/cmpServers.json:/etc/onap/aaf/certservice/cmpServers.json
     container_name: aafcert-service
+    volumes:
+      - ./certService/helm/aaf-cert-service/resources/cmpServers.json:/etc/onap/aaf/certservice/cmpServers.json
     ports:
       - "8080:8080"
     depends_on: