add conf file presence check to cleanup scripts

Author: Archit Sharma

cleanup_sarjitsu

@@ -2,16 +2,24 @@
 
 APP_CONF=conf/sarjitsu.conf
 
-source $APP_CONF
 
-cleanup_containers(){
-  CLEAN_IDS=$(docker ps -a | grep -P '^.*(\ssarjitsu.*|'$METRICSTORE_CONTAINER_ID')$' | awk -F' ' '{print $1}')
-  if [[ ! -z $CLEAN_IDS ]]; then
-    echo "cleaning up previously created sarjitsu instances"
-    #docker stop $CLEAN_IDS
-    docker rm -f $CLEAN_IDS
-  fi
+log(){
+  echo -e "[$(date +'%D %H:%M:%S %Z')] - $*"
 }
 
-cleanup_containers
+if [ ! -f $APP_CONF ]; then
+    log "$APP_CONF doesn't exist. Taking additional steps to cleanup"
+    log "PostgreSQL instance (if it's containerized), might still be running after this"
+    CLEAN_IDS=$(docker ps -a | grep -e sarjitsu | awk -F' ' '{print $1}')
+else
+    source $APP_CONF
+    CLEAN_IDS=$(docker ps -a | grep -P '^.*(\ssarjitsu.*|'$METRICSTORE_CONTAINER_ID')$' | awk -F' ' '{print $1}')
+fi
 
+if [[ ! -z $CLEAN_IDS ]]; then
+    log "cleaning up previously created sarjitsu instances"
+    #docker stop $CLEAN_IDS
+    docker rm -f $CLEAN_IDS
+else
+    log "nothing else to cleanup. check output of '$ docker ps -a' manually to verify"
+fi