WARNING juju.juju.series supportedseries.go:692 failed to update distro info: open /usr/share/distro-info/ubuntu.csv: no such file or directory on Trusty

[David Ames]

Juju 2.7.5

snap info juju:

snap-id: e2CPHpB1fUxcKtCyJTsm5t3hN9axJ0yj
tracking: 2.7/candidate
  2.7/candidate: 2.7.5+2.7-8a81b98 2020-03-19 (10983) 82MB classic

The Trusty cloud images do not have distro-info installed by default leading juju commands to spew the following Warning to stderr.

root@juju-7db4d7-zaza-6013949e4099-3:/var/lib/juju/agents/unit-keystone-0/charm# network-get --primary-address public
2020-03-20 20:39:54 WARNING juju.juju.series supportedseries.go:692 failed to update distro info: open /usr/share/distro-info/ubuntu.csv: no such file or directory
172.20.0.15

The problem with this is there are a number of charm-helpers which mistakenly send stderr to stdout. This effectively breaks important helpers like charmhelpers.core.network_get and others.

The problem does not exist on juju 2.7.4

[Richard Harding (rharding)]

Thanks, this might be due to some of the series changes made in 2.7.5. Simon can you look into this for 2.7.5 in your morning please?

[Simon Richardson (simonrichardson)]

This is the PR[1] in os/series package to ensure we handle missing distro csv
Once this has been approved I'll bring this into juju/juju

 1. https://github.com/juju/os/pull/20

[Alex Kavanagh (ajkavanagh)]

Is it possible to get this released to the candidate channel, please? It's currently holding up our CI tests as we can't complete gate on the charms as we have trusty-* targets. Thanks.

[Richard Harding (rharding)]

This is in the 2.7 candidate channel currently. Are you still seeing the issue with that snap?

[Alex Kavanagh (ajkavanagh)]

Hi Rick, sorry I didn't spot that as I was looking at just the "candidate" channel. I will test with 2.7/candidate and report back. Thanks!

[Alex Kavanagh (ajkavanagh)]

Can confirm, that in my bastion, 2.7/candidate has solved the issue on trusty. Thanks.