Restrict default permissions to admin users

[mdellweg]

fixes #8018
https://pulp.plan.io/issues/8018

[pulpbot]

Attached issue: https://pulp.plan.io/issues/8018

[mdellweg]

@jlsherrill We want to confirm with katello if you are always using the admin user.
This should not impact you then.

[jlsherrill]

That's correct!

[ipanova]

@bmbouter PTAL

[bmbouter]

@newswangerd FYI on this, does galaxy_ng use any non-admin users that you don't define Permission classes explicitly for?

[bmbouter]

I think we need a plugin writer .removal note calling out this breaking change. For example if a plugin is shipping a viewset that they need non-admin users to have access to they would want to see this in the plugin writer changelog. What do you all think about this?

[newswangerd]

@newswangerd FYI on this, does galaxy_ng use any non-admin users that you don't define Permission classes explicitly for?

Thanks for the heads up @bmbouter. I don't think this should affect galaxy_ng too much.

[bmbouter]

Thanks!