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Bug 1787488: Clean up stale egress IP iptables rules on startup #88

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danwinship
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Followup to #51; we were removing the stale egress IPs themselves but not the iptables rules associated with them.

I thought about putting the egress IP rules into a separate chain so that we could just flush the chain and then recreate it, which would have been a lot simpler, but then we'd also end up potentially dropping packets on restart, which we've tried to avoid. So I went with this approach.

I was going to add a unit test, but the fake iptables implementation isn't functional enough for this to work. Though... I guess I could use the real iptables implemntation and the fake exec... Anyway, it does work.

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@danwinship: This pull request references Bugzilla bug 1787488, which is valid. The bug has been moved to the POST state. The bug has been updated to refer to the pull request using the external bug tracker.

In response to this:

Bug 1787488: Clean up stale egress IP iptables rules on startup

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.

@openshift-ci-robot openshift-ci-robot added bugzilla/valid-bug Indicates that a referenced Bugzilla bug is valid for the branch this PR is targeting. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Jan 10, 2020
@danwinship
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/cc @dcbw

@openshift-ci-robot openshift-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Jan 10, 2020
@danwinship
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/retest

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@danwinship
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/retest

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/lgtm

Should there be some tests for this?

@openshift-ci-robot openshift-ci-robot added the lgtm Indicates that a PR is ready to be merged. label Jan 16, 2020
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: danwinship, knobunc

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/retest

Please review the full test history for this PR and help us cut down flakes.

13 similar comments
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

21 similar comments
@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-bot
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/retest

Please review the full test history for this PR and help us cut down flakes.

@openshift-merge-robot openshift-merge-robot merged commit cfdfd77 into openshift:master Jan 22, 2020
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@danwinship: All pull requests linked via external trackers have merged. Bugzilla bug 1787488 has been moved to the MODIFIED state.

In response to this:

Bug 1787488: Clean up stale egress IP iptables rules on startup

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.

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5 participants