Add Load Balancer configuration through charm config

[eaudetcobello]

Overview

Note: The naming might change and is WIP for now.
Add options to the k8s charm to configure the load balancer via charm configuration.

Rationale

A user may want to overwrite the default configuration for load balancer. This should be possible both - when bootstrapping a cluster and during runtime.

Module Changes

• Implement the load-balancer part of the charm configuration - the remaining configs are updated in follow-up work.

[bschimke95]

This is missing the actual mapping of the options in charm.py.
I'd say let's wait for the local-storage PR to land, then this is a quick change.

[eaudetcobello]

This is missing the actual mapping of the options in charm.py.

I'd say let's wait for the local-storage PR to land, then this is a quick change.

Thanks, this was supposed to be a draft pr. Please ignore for now.

[addyess]

A few questions for @bschimke95 and @eaudetcobello

[addyess]

LGTM

[github-actions]

Test coverage for 4da99af

coverage-report: install_deps /home/runner/work/k8s-operator/k8s-operator/charms/worker/k8s> python -I -m pip install 'coverage[toml]'
coverage-report: commands[0] /home/runner/work/k8s-operator/k8s-operator/charms/worker/k8s> coverage report
Name                                    Stmts   Miss  Cover
-----------------------------------------------------------
lib/charms/k8s/v0/k8sd_api_manager.py     270     29    89%
src/charm.py                              468    244    48%
src/cloud_integration.py                   80      3    96%
src/containerd.py                         140     16    89%
src/cos_integration.py                     33     12    64%
src/events/update_status.py                48     10    79%
src/inspector.py                           40      3    92%
src/kube_control.py                        39     31    21%
src/literals.py                             1      0   100%
src/protocols.py                           16      3    81%
src/reschedule.py                          77      4    95%
src/snap.py                               165     10    94%
src/token_distributor.py                  181    109    40%
src/upgrade.py                             31      1    97%
-----------------------------------------------------------
TOTAL                                    1589    475    70%
coverage-report: OK (1.23=setup[1.03]+cmd[0.21] seconds)
congratulations :) (1.28 seconds)

Static code analysis report

Run started:2024-11-22 16:09:16.536265

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 3421
  Total lines skipped (#nosec): 3
  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):

[mateoflorido]

closes #109