persit controller configuration upon restarts

case of drools containers restarts or pulling new images.

Change-Id: I30747a605bf1cb5ae351cd1359263728d82afcca
Issue-ID: POLICY-575
Signed-off-by: Jorge Hernandez <jh1730@att.com>

3 files changed, 51 insertions, 34 deletions

diff --git a/packages/docker/src/main/docker/Dockerfile b/packages/docker/src/main/docker/Dockerfile
index d7af6be9..d4d427b5 100644
--- a/packages/docker/src/main/docker/Dockerfile
+++ b/packages/docker/src/main/docker/Dockerfile
@@ -2,11 +2,16 @@ FROM ubuntu:14.04
 
 ARG HTTP_PROXY=${HTTP_PROXY}
 ARG HTTPS_PROXY=${HTTPS_PROXY}
-ARG POLICY_LOGS=/var/log/ONAP/policy
+ARG POLICY_HOME=/opt/app/policy
+ARG POLICY_LOGS=/var/log/onap/policy/pdpd
+ARG POLICY_INSTALL=/tmp/policy-install
 
 ENV http_proxy $HTTP_PROXY
 ENV https_proxy $HTTPS_PROXY
+ENV POLICY_INSTALL ${POLICY_INSTALL}
+ENV POLICY_HOME ${POLICY_HOME}
 ENV POLICY_LOGS ${POLICY_LOGS}
+ENV POLICY_DOCKER true
 
 RUN \
         apt-get clean && \
@@ -32,18 +37,23 @@ RUN \
         apt-get install -y mariadb-client
 
 RUN pip install http-prompt
-RUN mkdir -p /opt/app/policy/ /tmp/policy-install/ ${POLICY_LOGS} && \
-    chown -R policy /opt/app/policy/ /tmp/policy-install/ ${POLICY_LOGS}
+RUN mkdir -p ${POLICY_HOME}/config ${POLICY_LOGS} ${POLICY_INSTALL}/config && \
+    chown -R policy:policy ${POLICY_HOME} ${POLICY_LOGS} ${POLICY_INSTALL}
 
-WORKDIR /tmp/policy-install
+WORKDIR ${POLICY_INSTALL}
 
 COPY install-drools.zip apps.zip docker-install.sh do-start.sh wait-for-port.sh ./
 
+VOLUME [ "${POLICY_INSTALL}/config", "${POLICY_HOME}/config" ]
+
 RUN unzip -o install-drools.zip && \
     unzip -o apps.zip && \
     rm install-drools.zip apps.zip && \
-    chown -R policy * && \
+    chown -R policy:policy * && \
     chmod +x *.sh
 
+EXPOSE 9696 6969
+
 USER policy
+
 CMD ./do-start.sh
diff --git a/packages/docker/src/main/docker/do-start.sh b/packages/docker/src/main/docker/do-start.sh
index e1857441..5f156979 100644
--- a/packages/docker/src/main/docker/do-start.sh
+++ b/packages/docker/src/main/docker/do-start.sh
@@ -1,10 +1,12 @@
 #!/bin/bash
 
 # skip installation if build.info file is present (restarting an existing container)
-if [[ -f /opt/app/policy/etc/build.info ]]; then
+if [[ -f ${POLICY_HOME}/etc/build.info ]]; then
 	echo "Found existing installation, will not reinstall"
-	. /opt/app/policy/etc/profile.d/env.sh
+	. ${POLICY_HOME}/etc/profile.d/env.sh
 else 
+	echo "installing .."
+
 	# replace conf files from installer with environment-specific files
 	# mounted from the hosting VM
 	if [[ -d config ]]; then
@@ -15,13 +17,22 @@ else
 	# needs to deploy some artifacts to the repo
 	./wait-for-port.sh nexus 8081
 
+	# remove broken symbolic links if any in data directory
+	if [[ -d ${POLICY_HOME}/config ]]; then
+		echo "removing dangling symbolic links"
+		find -L ${POLICY_HOME}/config -type l -exec rm -- {} +
+	fi
+
+	echo "docker install at ${PWD}"
+
 	./docker-install.sh
 
 	. /opt/app/policy/etc/profile.d/env.sh
 
 	# install policy keystore
-	mkdir -p $POLICY_HOME/etc/ssl
-	cp config/policy-keystore $POLICY_HOME/etc/ssl
+
+	mkdir -p ${POLICY_HOME}/etc/ssl
+	cp config/policy-keystore ${POLICY_HOME}/etc/ssl
 
 	if [[ -x config/drools-tweaks.sh ]] ; then
 		echo "Executing tweaks"
@@ -29,16 +40,10 @@ else
 		# argument to bash avoids needing execute perms.
 		bash config/drools-tweaks.sh
 	fi
-
-	# wait for DB up
-	./wait-for-port.sh mariadb 3306
-
-	# now that DB is up, invoke database upgrade:
-	# sql provisioning scripts should be invoked here.
 fi
 
 echo "Starting processes"
 
 policy start
 
-sleep 1000d
+tail -f /dev/null
diff --git a/packages/docker/src/main/docker/docker-install.sh b/packages/docker/src/main/docker/docker-install.sh
index 2ff6a0b3..5fb59c27 100644
--- a/packages/docker/src/main/docker/docker-install.sh
+++ b/packages/docker/src/main/docker/docker-install.sh
@@ -374,27 +374,29 @@ function install_base() {
 		exit 1
 	fi
 
-	if ! /bin/rm -fr "${POLICY_HOME}"/* > /dev/null 2>&1; then
-		echo "error: aborting base installation: cannot delete the underlying ${POLICY_HOME} files"
-		exit 1
-	fi
-	
-	POLICY_HOME_CONTENTS=$(ls -A "${POLICY_HOME}" 2> /dev/null)
-	if [[ -n ${POLICY_HOME_CONTENTS} ]]; then
-		echo "error: aborting base installation: ${POLICY_HOME} directory is not empty"
-		exit 1
-	fi
+	if [[ -z ${POLICY_DOCKER} ]]; then
+		if ! /bin/rm -fr "${POLICY_HOME}"/* > /dev/null 2>&1; then
+			echo "error: aborting base installation: cannot delete the underlying ${POLICY_HOME} files"
+			exit 1
+		fi
 	
-	if ! /bin/mkdir -p "${POLICY_HOME}/logs/" > /dev/null 2>&1; then	
-		echo "error: aborting base installation: cannot create ${POLICY_HOME}/logs/"
-		exit 1
-	fi	
+		POLICY_HOME_CONTENTS=$(ls -A "${POLICY_HOME}" 2> /dev/null)
+		if [[ -n ${POLICY_HOME_CONTENTS} ]]; then
+			echo "error: aborting base installation: ${POLICY_HOME} directory is not empty"
+			exit 1
+		fi
 	
-	if [[ -n ${POLICY_LOGS} ]]; then
-		if ! /bin/mkdir -p "${POLICY_LOGS}" > /dev/null 2>&1; then	
-			echo "error: aborting base installation: cannot create ${POLICY_LOGS}"
+		if ! /bin/mkdir -p "${POLICY_HOME}/logs/" > /dev/null 2>&1; then
+			echo "error: aborting base installation: cannot create ${POLICY_HOME}/logs/"
 			exit 1
 		fi	
+	
+		if [[ -n ${POLICY_LOGS} ]]; then
+			if ! /bin/mkdir -p "${POLICY_LOGS}" > /dev/null 2>&1; then	
+				echo "error: aborting base installation: cannot create ${POLICY_LOGS}"
+				exit 1
+			fi	
+		fi
 	fi
 	
 	BASE_TGZ=$(ls base-*.tar.gz)
@@ -868,7 +870,7 @@ function do_install()
 		set -x
 	fi
 
-	echo "Starting installation at $(date)"
+	echo "Starting installation at $(date) at ${PWD}"
 	echo
 	
 	COMPONENT_TYPE=base