[stable/prometheus-operator] Default Backend config in ingress

[karthikm83]

Is this a new chart - NO

NOTE: We're experiencing a high volume of PRs to this repo and reviews will be delayed. Please host your own chart repository and submit your repository to the Helm Hub instead of this repo to make them discoverable to the community. Here is how to submit new chart repositories to the Helm Hub.

What this PR does / why we need it:

This PR will enable a feature to configure default Backend for Ingress objects.

This will be useful especially in Google Kubernetes Engine, as GKE Ingress is using kube-system's default-http-backend service as a default backend for Load Balancer if not specified, and hence becoming difficult to manage the ingress the way we want.

Which issue this PR fixes

fixes # 23202

Special notes for your reviewer:

Checklist

[Place an '[x]' (no spaces) in all applicable fields. Please remove unrelated fields.]

• DCO signed
• Chart Version bumped
• Variables are documented in the README.md
• Title of the PR starts with chart name (e.g. [stable/mychartname])

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: karthikm83
To complete the pull request process, please assign vsliouniaev
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• stable/prometheus-operator/OWNERS

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[k8s-ci-robot]

Hi @karthikm83. Thanks for your PR.

I'm waiting for a helm member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[karthikm83]

/assign @vsliouniaev

[scottrigby]

/hold

Let’s hold PRs to prometheus-operator for a short time until prometheus-community/community#28 (comment) is resolved. If you want to help with that effort, to test etc, that would be great!

[scottrigby]

@karthikm83 as a user and contributor, would you mind helping to review/test this PR? prometheus-community/helm-charts#1

No need to reply here. If you can, please just reply and help there. It would help this process move along faster. Thanks!

[scottrigby]

🚧 This chart is now deprecated.

Further development has moved to prometheus-community/helm-charts. The chart has been renamed kube-prometheus-stack to more clearly reflect that it installs the kube-prometheus project stack, within which Prometheus Operator is only one component.

If applicable, please re-open this PR there. Thanks!