Switched back to using a shell script for the wrapper, simplified service config to one service

snap/hooks/configure

@@ -1,10 +1,12 @@
 #!/bin/sh -e
 
-# Obtain sleep-time value
-sleep_time="$(snapctl get sleep-time)"
+listen_port="$(snapctl get novncsvc.listen_port)"
+vnc_host_port="$(snapctl get novncsvc.vnc_host_port)"
 
-# Validate it
-if ! expr "$sleep_time" : '^[0-9]*$' > /dev/null; then
-    echo "\"$sleep_time\" is not a valid sleep time" >&2
-    exit 1
+ # Validate listen_port
+if ! expr "$listen_port" : '^[0-9]\+$' > /dev/null; then
+    echo "\"$listen_port\" is not a valid port number" >&2
+    return 1
 fi
+
+snapctl restart novncsvc

snap/snapcraft.yaml

@@ -26,6 +26,6 @@ apps:
         command: utils/launch.sh
         plugs: [network, network-bind]
     novncsvc:
-        command: utils/svc_wrapper.py
+        command: utils/svc_wrapper.sh
         daemon: simple
         plugs: [network, network-bind]

utils/svc_wrapper.py

@@ -1,3 +0,0 @@
-#!/usr/bin/env python3
-
-

utils/svc_wrapper.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/bash
+
+listen_port="$(snapctl get novncsvc.listen_port)"
+vnc_host_port="$(snapctl get novncsvc.vnc_host_port)"
+
+utils/launch.sh --listen $listen_port --vnc $vnc_host_port