Promehetus and loki integration

[arturo-seijas]

Applicable spec:

Overview

Integration with prometheus and loki charms

Rationale

Juju Events Changes

Module Changes

Library Changes

Checklist

• The charm style guide was applied
• The contributing guide was applied
• The changes are compliant with ISD054 - Managing Charm Complexity
• The documentation is generated using src-docs
• The documentation for charmhub is updated
• The PR is tagged with appropriate label (urgent, trivial, complex)

[Thanhphan1147]

LGTM, a few minor comments

[github-actions]

Test coverage for 9d761a5

Name                            Stmts   Miss Branch BrPart  Cover   Missing
---------------------------------------------------------------------------
src/certificates_observer.py       59      0      0      0   100%
src/charm.py                      104     27     28      7    68%   64-71, 109, 143-157, 168, 170, 172, 174, 236-244
src/observability.py               13      0      0      0   100%
src/opensearch_observer.py         12      0      0      0   100%
src/state.py                      128     17     14      2    87%   100-101, 146-147, 174-175, 195-196, 199, 218, 220-222, 347-352
src/traefik_route_observer.py      39      0      6      0   100%
src/wazuh.py                      177     63     22      2    65%   103, 199-200, 213-219, 264->exit, 286-309, 320-332, 384-400, 417-440, 448-449, 466-500
---------------------------------------------------------------------------
TOTAL                             532    107     70     11    78%

Static code analysis report

Run started:2024-12-05 15:35:47.611308

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 2601
  Total lines skipped (#nosec): 15
  Total potential issues skipped due to specifically being disabled (e.g., #nosec BXXX): 0

Run metrics:
  Total issues (by severity):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
  Total issues (by confidence):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
Files skipped (0):

[jdkandersson]

@arturo-seijas For the next PR, please follow our process around doing the public interface first and then starting implementation after a review with a senior. Based on the commit log, it doesn't seem like this was done