Added new values to allow custom ports

[abelperezok]

This PR is related to the following issues:

• Allow using custom ports for metrics, health checks and proxy #214
• Allow using custom port for webhook  opentelemetry-operator#896

It includes updates to the opentelemetry-operator chart to allow custom values to be used for ports:

--set manager.ports.metricsPort=8085
--set kubeRBACProxy.ports.proxyPort=8445
--set manager.ports.webhookPort=9445
--set manager.ports.healthzPort=8005

The default values for all these ports are the same as before and it's reflected in values.yaml

manager:
# other values ...
  ports:
    metricsPort: 8080
    webhookPort: 9443
    healthzPort: 8081

kubeRBACProxy:
# other values ....
  ports:
    proxyPort: 8443

⚠️ At this point, it's not going to work until PR open-telemetry/opentelemetry-operator#899 is completed. If you want to test it meanwhile, please comment out or remove the lines:

            - --health-probe-addr=:{{ .Values.manager.ports.healthzPort }}
            - --webhook-port={{ .Values.manager.ports.webhookPort }}

https://github.com/abelperezok/opentelemetry-helm-charts/blob/new-values-custom-ports/charts/opentelemetry-operator/templates/deployment.yaml#L28-L29

Also, make sure you keep using the default values for both health check and webhook until the new version of the operator is published.

[TylerHelmuth]

@abelperezok can you change this to a draft PR until all other blocker PRs are merged?

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 14 days.

[abelperezok]

@TylerHelmuth I've resolved the conflicts with the tag version, I kept the higher number.

[TylerHelmuth]

@abelperezok please bump the chart's patch version by 1.

[abelperezok]

@TylerHelmuth chart version is now 0.8.2

[TylerHelmuth]

@abelperezok chart testing failed twice in a row. Can you to
take a look?

[TylerHelmuth]

For comparison, here is a passing build of essentially main (I bumped the version so I could make a PR): TylerHelmuth#12

[TylerHelmuth]

@abelperezok thanks!