tekton: no endpoints available for service “tekton-pipelines-webhook

If you see an error like the above one during your Tekton deployment, you can use the steps provided here to fix it.

Issue:

Error from server (InternalError): error when creating "https://github.com/tektoncd/pipeline/releases/download/v0.24.0/release.notags.yaml": Internal error occurred: failed calling webhook "config.webhook.pipeline.tekton.dev": Post "https://tekton-pipelines-webhook.tekton-pipelines.svc:443/config-validation?timeout=10s": no endpoints available for service "tekton-pipelines-webhook

Solution:

oc delete validatingwebhookconfigurations.admissionregistration.k8s.io config.webhook.pipeline.tekton.dev
oc delete validatingwebhookconfigurations.admissionregistration.k8s.io validation.webhook.pipeline.tekton.dev
c delete mutatingwebhookconfigurations.admissionregistration.k8s.io webhook.pipeline.tekton.dev

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