snapd 2.21 on 14.04 does not install systemd file properly

[Adam Stokes]

You can reproduce by running the following on Trusty with snapd 2.21

sudo snap install conjure-up --edge --classic

Will result in this error:

ubuntu@darthbawlz:~$ sudo snap install conjure-up --classic --edge
error: cannot perform the following tasks:
- Start snap "conjure-up" (32) services ([start snap.conjure-up.bridge.service] failed with exit status 1: Job for snap.conjure-up.bridge.service failed. See 'systemctl status snap.conjure-up.bridge.service' and 'journalctl -xn' for details.
)

That systemd file never seems to get installed. My snapcraft.yaml can be seen here:

https://github.com/conjure-up/conjure-up/blob/master/snapcraft.yaml

This only happens on 14.04.

[Seth Arnold (seth-arnold)]

14.04 LTS didn't use systemd as the init or service management daemon. What's the plan for snapd on such old things? Are we backporting systemd to 14.04 LTS? Or teaching snapd how to manage upstart?

Thanks

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Thomas Voß (thomas-voss)]

As discussed on IRC: The service unit fails to start up and the snap is not installed. Hence you don't see the unit showing up.