The previous commit changed our response for the root domain on a
self-hosted Zulip server containing no realms to be a 404.
This made the HTTP headers verification done here less robust than
would be ideal, in that one could imagine a bug that makes every URL
404 passing that test.
So we instead change the check to verify the /server_settings API,
which doesn't have that problem.
It should not use the configured zulip username, but should instead
pull from the login user (likely `nagios`), or an explicit alternate
provided PostgreSQL username. Failure to do so results in Nagios
failures because the `nagios` login does not have permissions to
authenticated the `zulip` PostgreSQL user.
This requires CI changes, as the install tests install as the `zulip`
login username, which allowed Nagios tests to pass previously; with
the custom database and username, however, they must be passed to
process_fts_updates explicitly when validating the install.
We support Debian as an OS for setting up the Zulip server. But the CI
does not run on pull request to test the setting up of the server on
Debian. Hence, add the check to CI.
This moves the puppet configuration closer to the "roles and profiles
method"[1] which is suggested for organizing puppet classes. Notably,
here it makes clear which classes are meant to be able to stand alone
as deployments.
Shims are left behind at the previous names, for compatibility with
existing `zulip.conf` files when upgrading.
[1] https://puppet.com/docs/pe/2019.8/the_roles_and_profiles_method
success-http-headers-bionic.txt and success-http-headers-focal.txt
differ only in the nginx version so this substitution will allow
us to have single file for both of them. Also this change helps
to avoid CI failure if Nginx version is updated in the OS.
Alex Vandiver
Tim Abbott
Anders Kaseorg
Adam Birds
Gaurav Pandey
Mateusz Mandera
arpit551