[Enhancement][opensearch] Allow user-defined labels on ingress resource

[wigust]

Is your feature request related to a problem? Please describe.
The Prometheus Operator allows to create Probes objects automatically for all Ingress objects. The OpenSearch API requires authentication on / and returns 401, which triggers alerts by default (not HTTP code 200-399).

Describe the solution you'd like
Labels could be used in kube-prometheus-stack monitoring.coreos.com/v1 Probe objects as a selector to disable creating probe for the OpenSearch Ingress.

Describe alternatives you've considered
Configure Blackbox exporter for authenticated connections to OpenSearch API.

Additional context
Similar to #394 Ingress labels could be used for other things, e.g. external-dns.

Pull request adding this feature is available at #497

[opencmit2]

Hi @wigust
The configuration .Values.labels can also be used to add custom labels.

[wigust]

Hi @opencmit2

Apologies for the slow response.

The configuration .Values.labels can also be used to add custom labels.

It can, but as described in the pull request - it triggers to restart all OpenSearch pods which is too costly for the case of adding a label to ingress.

[wigust]

Merged in #497

Thank you for adding this feature!