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Specify "bindNetwork: tcp" so apiserver will work on IPv6 single-stack #273

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merged 1 commit into from Jan 8, 2020
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Specify "bindNetwork: tcp" so apiserver will work on IPv6 single-stack #273

merged 1 commit into from Jan 8, 2020

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danwinship
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If you say net.Listen("tcp", "0.0.0.0:8443"), golang will actually create a dual-stack IPv4/IPv6 listening socket. But for historical reasons (having to do with bad IPv6 compat in older kube I think), we default to passing "tcp4" (the default value of configv1.ServingInfo.BindNetwork) instead of "tcp", forcing IPv4-only.

There is no reason these days for servers on the pod network to enforce IPv4-only, so this overrides the default for openshift-apiserver.

This will need to be backported to 4.3.

cc @russellb

@openshift-ci-robot openshift-ci-robot added the size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. label Dec 5, 2019
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[APPROVALNOTIFIER] This PR is NOT APPROVED

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poke @mfojtik
(this is the openshift-apiserver version which is easy because we can just make it dual-stack)

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mfojtik commented Jan 7, 2020

/lgtm

@danwinship will need BZ for backport

@openshift-ci-robot openshift-ci-robot added the lgtm Indicates that a PR is ready to be merged. label Jan 7, 2020
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[APPROVALNOTIFIER] This PR is APPROVED

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

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@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 7, 2020
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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

24 similar comments
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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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/retest

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

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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 fb1a6fd into openshift:master Jan 8, 2020
@danwinship danwinship deleted the dual-stack branch January 13, 2020 14:35
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/cherrypick release-4.3

@openshift-cherrypick-robot openshift-cherrypick-robot mentioned this pull request Jan 13, 2020
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@danwinship: new pull request created: #296

In response to this:

/cherrypick release-4.3

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