External-DNS: NodePort must not publish not ready pods

[nefelim4ag]

What happened:

NodePort Traffic policy: Local

Service with NodePort correctly update endpoints and does not try to publish not ready pods
ExternalDNS use internal logic to find pods by selector labels (instead of reading endpoints object) and only checks state isRunning (

external-dns/source/service.go

Line 568 in 0bf5fae

if v.Status.Phase == v1.PodRunning {

)
(Bad behavior: kubernetes/client-go#815)

What you expected to happen:

When I try to remove the pod and its moves to terminate state, external-dns that watching NodePort service will stop publishing node with the pod, not in a ready state.
Looks like we need additionally check pods by IsPodReady()

How to reproduce it (as minimally and precisely as possible):
Create service with NodePort type and with traffic policy Local pointing to some pods, add some lifecycle preStop look like sleep 60, after that delete pod and look at external-dns - it still publishes pod in terminating state.

Environment:

• External-DNS version (use external-dns --version): 0.11
• DNS provider: Route53

[k8s-triage-robot]

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/lifecycle stale

[rudnypc]

I'm having the same problem

[k8s-triage-robot]

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/lifecycle rotten

[k8s-triage-robot]

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

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/close not-planned

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Reopen this issue with /reopen
• Mark this issue as fresh with /remove-lifecycle rotten
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/close not-planned

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[nefelim4ag]

/reopen

I provide a fix for that

[k8s-ci-robot]

@nefelim4ag: Reopened this issue.

In response to this:

/reopen

I will write a fix for that

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[k8s-triage-robot]

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Reopen this issue with /reopen
• Mark this issue as fresh with /remove-lifecycle rotten
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/close not-planned

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Reopen this issue with /reopen
• Mark this issue as fresh with /remove-lifecycle rotten
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/close not-planned

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.