Merge pull request #23 from linuxserver/check-for-mongo-reachability

check for mongodb reachability during init

Author: drizuid

root/etc/s6-overlay/s6-rc.d/init-unifi-network-application-config/run

@@ -22,7 +22,10 @@ done
 if [[ ! -e /config/data/system.properties ]]; then
     if [[ -z "${MONGO_HOST}" ]]; then
         echo "*** No MONGO_HOST set, cannot configure database settings. ***"
-        exit 1
+        sleep infinity
+    elif ! nc -w1 "${MONGO_HOST}" ${MONGO_PORT} >/dev/null 2>&1; then
+        echo "*** Defined MONGO_HOST is not reachable, cannot proceed. ***"
+        sleep infinity
     else
         sed -i "s/~MONGO_USER~/${MONGO_USER}/" /defaults/system.properties
         sed -i "s/~MONGO_HOST~/${MONGO_HOST}/" /defaults/system.properties