2.6.2 regression: add cloud fails and says multi-cloud feature flag must be enabled

[Jason Hobbs]

Our CI deploys maas, creates a juju maas controller, deploys openstack on maas, then tries to create a juju openstack controller and deploy k8s on that.

This worked fine in 2.5.2, but in 2.6, there is a regression, we get an error now:

ERROR feature flag "multi-cloud" needs to be enabled to add a "openstack" cloud

subprocess.CalledProcessError: Command '['juju', 'add-cloud', '--replace', 'openstack_cloud', '/tmp/tmpEAQV6u']' returned non-zero exit status 1

We're not trying to use multiple clouds on a single controller, just multiple clouds with their own controllers all from the same juju client location.

Expected behavior is for things that worked in 2.5 would continue to work in 2.6.

[Jason Hobbs (jason-hobbs)]

sub'd field critical as this is blocking our CI and we don't have a workaround.

[Jason Hobbs (jason-hobbs)]

Dropped to field-high since we can use 2.5 juju as a workaround.

[Jason Hobbs (jason-hobbs)]

hmm looks like we can also use --local?

[Jason Hobbs (jason-hobbs)]

Well the problem is that --local is new in 2.6, and is false by default. We can't pass it to 2.5 juju, which will error. So our automation code will need to know if it's driving juju 2.6 or juju <2.6 and change the flags it passes on the cli.

[Anastasia (anastasia-macmood)]

@Jason Hobbs (jason-hobbs),

Yes, you need to use --local.

[Anastasia (anastasia-macmood)]

PR to improve 'add-cloud' experience and messaging is: https://github.com/juju/juju/pull/10580

[Anastasia (anastasia-macmood)]

PR to remove 'multi-cloud' feature flag from controller API: https://github.com/juju/juju/pull/10595