Mark unstable tests

[marceloneppel]

Issue

Jira issue: DPE-1356
Some integration tests fail transiently and sometimes make the development slower.

Solution

Mark them as unstable and create tasks for solving each of them.

Context

New Jira issues were created for each of the tests that need to be fixed. They're listed on DPE-1356.

The TLS tests was changed to match the text in the logs without all the details related to TLS version or bits (because it may change when updating the database version).

Testing

Tested on multiple runs locally and on CI.

Release Notes

Mark unstable tests.

[taurus-forever]

I am slightly surprised with amount of tests we are marking as unstable.
What is your definition of unstable? :-D

From the nightly failures, we must mark ha-self-healing-integration for sure (constantly failing).

Failures in tls and charm-integration tests looks identically:

unit-postgresql-k8s-1: 01:45:01 ERROR unit.postgresql-k8s/1.juju-log database-peers:0: Uncaught exception while in charm code:
...
ConnectionRefusedError: [Errno 111] Connection refused
...
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7f09a7823100>: Failed to establish a new connection: [Errno 111] Connection refused

and IMHO required investigation and fix (to stabilize significant amount of tests).

LGTM, as you know what you are doing here, but please schedule timeout investigation above in this/next pulse. Tnx!

[marceloneppel]

I am slightly surprised with amount of tests we are marking as unstable. What is your definition of unstable? :-D

From the nightly failures, we must mark ha-self-healing-integration for sure (constantly failing).

Failures in tls and charm-integration tests looks identically:

unit-postgresql-k8s-1: 01:45:01 ERROR unit.postgresql-k8s/1.juju-log database-peers:0: Uncaught exception while in charm code:
...
ConnectionRefusedError: [Errno 111] Connection refused
...
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7f09a7823100>: Failed to establish a new connection: [Errno 111] Connection refused

and IMHO required investigation and fix (to stabilize significant amount of tests).

LGTM, as you know what you are doing here, but please schedule timeout investigation above in this/next pulse. Tnx!

Hi Alex! I forgot to add more details to the PR description, sorry about that. I used the list of nightly failed tests to mark them as unstable.

Yeah, I'm going to schedule some time to investigate and fix them in the next pulse. Thanks.