bundles/docker-engine: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARGLLLLLLLLLLLLLLLLLLLLLLLLL

networking is apparently hard

bundles/docker-engine/files/docker-wrapper

@@ -17,8 +17,9 @@ PGID="$(id -g "docker-${name}")"
 
 if [ "$ACTION" == "start" ]
 then
+   docker rm "${name}" || true
+
     docker run -d \
-        --rm \
         --name "${name}" \
         --env "PUID=$PUID" \
         --env "PGID=$PGID" \
@@ -26,6 +27,7 @@ then
 % for k, v in sorted(environment.items()):
         --env "${k}=${v}" \
 % endfor
+        --network aaarghhh \
 % for host_port, container_port in sorted(ports.items()):
         --publish "127.0.0.1:${host_port}:${container_port}" \
 % endfor

bundles/docker-engine/items.py

@@ -28,6 +28,21 @@ files['/usr/local/share/icinga/plugins/check_docker_container'] = {
     'mode': '0755',
 }
 
+actions['docker_create_nondefault_network'] = {
+    # <https://docs.docker.com/engine/network/#dns-services>
+    # By default, containers inherit the DNS settings as defined in the
+    # /etc/resolv.conf configuration file. Containers that attach to the
+    # default bridge network receive a copy of this file. Containers that
+    # attach to a custom network use Docker's embedded DNS server. The embedded
+    # DNS server forwards external DNS lookups to the DNS servers configured on
+    # the host.
+    'command': 'docker network create aaarghhh',
+    'unless': 'docker network ls | grep -q -F aaarghhh',
+    'needs': {
+        'svc_systemd:docker',
+    },
+}
+
 for app, config in node.metadata.get('docker-engine/containers', {}).items():
     volumes = config.get('volumes', {})
 
@@ -54,8 +69,8 @@ for app, config in node.metadata.get('docker-engine/containers', {}).items():
             'docker',
         },
         'after': {
-            # provides docker group
-            'pkg_apt:docker-ce',
+            'action:docker_create_nondefault_network',
+            'svc_systemd:docker',
         },
     }