Enabling logback files to be loaded using oom configmap

Change-Id: I0391f339f50d6e1fc35a45ce2941cd8c272f90d8
Issue-ID: POLICY-2308
Signed-off-by: a.sreekumar <ajith.sreekumar@est.tech>
diff --git a/packages/policy-distribution-docker/src/main/docker/policy-dist.sh b/packages/policy-distribution-docker/src/main/docker/policy-dist.sh
index 33fe308..17979ba 100644
--- a/packages/policy-distribution-docker/src/main/docker/policy-dist.sh
+++ b/packages/policy-distribution-docker/src/main/docker/policy-dist.sh
@@ -2,7 +2,7 @@
 #
 # ============LICENSE_START=======================================================
 #  Copyright (C) 2018 Ericsson. All rights reserved.
-#  Modifications Copyright (C) 2019 Nordix Foundation.
+#  Modifications Copyright (C) 2019-2020 Nordix Foundation.
 # ================================================================================
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -47,6 +47,11 @@
     cp -f "${POLICY_HOME}"/etc/mounted/policy-keystore  "${KEYSTORE}"
 fi
 
+if [[ -f "${POLICY_HOME}"/etc/mounted/logback.xml ]]; then
+    echo "overriding logback.xml"
+    cp -f "${POLICY_HOME}"/etc/mounted/logback.xml "${POLICY_HOME}"/etc/
+fi
+
 echo "Policy distribution config file: $CONFIG_FILE"
 
-$JAVA_HOME/bin/java -cp "${POLICY_HOME}/etc:${POLICY_HOME}/lib/*" -Djavax.net.ssl.keyStore="$KEYSTORE" -Djavax.net.ssl.keyStorePassword="$KEYSTORE_PASSWD" -Djavax.net.ssl.trustStore="$TRUSTSTORE" -Djavax.net.ssl.trustStorePassword="$TRUSTSTORE_PASSWD" org.onap.policy.distribution.main.startstop.Main -c $CONFIG_FILE
+$JAVA_HOME/bin/java -cp "${POLICY_HOME}/etc:${POLICY_HOME}/lib/*" -Dlogback.configurationFile=$POLICY_HOME/etc/logback.xml -Djavax.net.ssl.keyStore="$KEYSTORE" -Djavax.net.ssl.keyStorePassword="$KEYSTORE_PASSWD" -Djavax.net.ssl.trustStore="$TRUSTSTORE" -Djavax.net.ssl.trustStorePassword="$TRUSTSTORE_PASSWD" org.onap.policy.distribution.main.startstop.Main -c $CONFIG_FILE