update for image url

wait-for-postgres.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+# wait-for-postgres.sh
+
+set -e
+  
+host="$1"
+shift
+  
+until PGPASSWORD=$POSTGRES_PASS psql -h "$host" -U "postgres" -c '\q'; do
+  >&2 echo "Postgres is unavailable - sleeping"
+  sleep 1
+done
+  
+>&2 echo "Postgres is up - executing command"
+exec "$@"