Generate random passwords and keep them out of the environment/program args

metrics/scripts/stop.sh

@@ -7,12 +7,11 @@ set -e
 
 for container in influxdb grafana; do
   if [ "$(docker ps -q -a -f name=$container)" ]; then
-  (
-    set +e
-    docker rm -f $container
-    exit 0
-  )
+    echo Stopping $container
+    (
+      set +e
+      docker rm -f $container
+      exit 0
+    )
   fi
 done
-
-echo Local metrics stopped