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OCPBUGS-51273: Don't crashloop for HAProxy init container #4963

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Previously we just crashlooped when the HAProxy init container failed, which is a normal, expected condition when HAProxy starts before CoreDNS. This is causing issues in CI because having a pod crash more than 3 times in a row is considered a failure. While it usually doesn't take that long for it to pass, we are hitting a weird timing issue during upgrades when the node is just about to reboot after MCO updates the pod definitions and it's taking longer than normal because ostree is updating the node at the same time.

Since this is just a case of everything behaving as expected, let's stop failing the pod for an expected situation. This change puts the api-int call in a loop so it will just run until coredns is ready and we'll never trigger any error reporting just because of harmless timing issues.

- What I did

- How to verify it

- Description for the changelog

Previously we just crashlooped when the HAProxy init container failed,
which is a normal, expected condition when HAProxy starts before
CoreDNS. This is causing issues in CI because having a pod crash
more than 3 times in a row is considered a failure. While it usually
doesn't take that long for it to pass, we are hitting a weird timing
issue during upgrades when the node is just about to reboot after
MCO updates the pod definitions and it's taking longer than normal
because ostree is updating the node at the same time.

Since this is just a case of everything behaving as expected, let's
stop failing the pod for an expected situation. This change puts
the api-int call in a loop so it will just run until coredns is
ready and we'll never trigger any error reporting just because of
harmless timing issues.
@openshift-ci-robot openshift-ci-robot added jira/severity-important Referenced Jira bug's severity is important for the branch this PR is targeting. jira/valid-reference Indicates that this PR references a valid Jira ticket of any type. jira/valid-bug Indicates that a referenced Jira bug is valid for the branch this PR is targeting. labels Mar 31, 2025
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@cybertron: This pull request references Jira Issue OCPBUGS-51273, which is valid. The bug has been moved to the POST state.

3 validation(s) were run on this bug
  • bug is open, matching expected state (open)
  • bug target version (4.19.0) matches configured target version for branch (4.19.0)
  • bug is in the state ASSIGNED, which is one of the valid states (NEW, ASSIGNED, POST)

Requesting review from QA contact:
/cc @jadhaj

The bug has been updated to refer to the pull request using the external bug tracker.

In response to this:

Previously we just crashlooped when the HAProxy init container failed, which is a normal, expected condition when HAProxy starts before CoreDNS. This is causing issues in CI because having a pod crash more than 3 times in a row is considered a failure. While it usually doesn't take that long for it to pass, we are hitting a weird timing issue during upgrades when the node is just about to reboot after MCO updates the pod definitions and it's taking longer than normal because ostree is updating the node at the same time.

Since this is just a case of everything behaving as expected, let's stop failing the pod for an expected situation. This change puts the api-int call in a loop so it will just run until coredns is ready and we'll never trigger any error reporting just because of harmless timing issues.

- What I did

- How to verify it

- Description for the changelog

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 openshift-eng/jira-lifecycle-plugin repository.

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openshift-ci bot commented Mar 31, 2025

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: cybertron
Once this PR has been reviewed and has the lgtm label, please assign dkhater-redhat for approval. For more information see the Code Review Process.

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/retest-required

Not used in hypershift.

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/retest-required

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openshift-ci bot commented Apr 2, 2025

@cybertron: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name Commit Details Required Rerun command
ci/prow/e2e-gcp-op-ocl 90907d5 link false /test e2e-gcp-op-ocl
ci/prow/bootstrap-unit 90907d5 link false /test bootstrap-unit
ci/prow/e2e-azure-ovn-upgrade-out-of-change 90907d5 link false /test e2e-azure-ovn-upgrade-out-of-change
ci/prow/e2e-hypershift 90907d5 link true /test e2e-hypershift

Full PR test history. Your PR dashboard.

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-sigs/prow repository. I understand the commands that are listed here.

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