Snapcraft is not allowing to create a service with restart always option

[Rajendra Dendukuri]

Snapcraft-2.3 version does not allow restart-condition to be set in snapcraft.yaml. This is resulting in all daemons defaulting to restart on-fault. It would be good to provide choice to developer creating the app.

Below change to schema allows setting of systemd unit behavior.

diff --git a/schema/snapcraft.yaml b/schema/snapcraft.yaml
index 000315a..9b29f3b 100644
--- a/schema/snapcraft.yaml
+++ b/schema/snapcraft.yaml
@@ -162,6 +162,9 @@ properties:
             description: command executed to stop a service
           stop-timeout:
             description: timeout in seconds
+ restart-condition:
+ type: string
+ description: service restart condition
           daemon:
             type: string
             description: signals that the app is a service.