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kubeadm: default etcd address based on the IP family #85745

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merged 2 commits into from
Dec 2, 2019
Merged

kubeadm: default etcd address based on the IP family #85745

merged 2 commits into from
Dec 2, 2019

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aojea
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@aojea aojea commented Nov 29, 2019 •
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What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:

/kind api-change
/kind bug

/kind cleanup

/kind deprecation
/kind design
/kind documentation
/kind failing-test
/kind feature
/kind flake

What this PR does / why we need it:

kubeadm always configured the etcd endpoint to the IPv4 localhost address.

This patchs configures the right localhost address based on the used
AdvertiseAddress IP family.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

kubeadm: uses the apiserver AdvertiseAddress IP family to choose the etcd endpoint IP family for non external etcd clusters

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

@k8s-ci-robot k8s-ci-robot added release-note Denotes a PR that will be considered when it comes time to generate release notes. kind/cleanup Categorizes issue or PR as related to cleaning up code, process, or technical debt. size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. needs-sig Indicates an issue or PR lacks a `sig/foo` label and requires one. needs-priority Indicates a PR lacks a `priority/foo` label and requires one. area/kubeadm sig/cluster-lifecycle Categorizes an issue or PR as relevant to SIG Cluster Lifecycle. and removed needs-sig Indicates an issue or PR lacks a `sig/foo` label and requires one. labels Nov 29, 2019
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aojea commented Nov 29, 2019

/hold
want to verify first is working correctly with ipv6
/test pull-kubernetes-e2e-kind-ipv6
/assign @neolit123 @fabriziopandini @ereslibre

@k8s-ci-robot k8s-ci-robot added the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Nov 29, 2019
@k8s-ci-robot k8s-ci-robot requested review from detiber and kad November 29, 2019 06:38
@aojea aojea force-pushed the kubeadm_etcd_ipv6 branch from 70182cf to 20b5d9f Compare November 29, 2019 10:46
@k8s-ci-robot k8s-ci-robot added size/S Denotes a PR that changes 10-29 lines, ignoring generated files. and removed size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. labels Nov 29, 2019
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aojea commented Nov 29, 2019

/test pull-kubernetes-e2e-kind-ipv6

neolit123
neolit123 reviewed Nov 29, 2019
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thanks @aojea
/approve
/assign @ereslibre

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aojea, neolit123

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@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Nov 29, 2019
@aojea aojea force-pushed the kubeadm_etcd_ipv6 branch from 20b5d9f to 9245e59 Compare November 29, 2019 12:39
@k8s-ci-robot k8s-ci-robot added size/M Denotes a PR that changes 30-99 lines, ignoring generated files. and removed size/S Denotes a PR that changes 10-29 lines, ignoring generated files. labels Nov 29, 2019
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aojea commented Nov 29, 2019

/test pull-kubernetes-e2e-kind-ipv6

@aojea aojea force-pushed the kubeadm_etcd_ipv6 branch from 9245e59 to 8483d32 Compare November 29, 2019 12:58
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aojea commented Nov 29, 2019

/test pull-kubernetes-e2e-kind-ipv6

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aojea commented Nov 30, 2019

/test pull-kubernetes-conformance-kind-ipv6
/test pull-kubernetes-e2e-kind-ipv6

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aojea commented Nov 30, 2019

/test pull-kubernetes-conformance-kind-ipv6
flaky, only failed 3 tests, seems that now ipv6 is healthier

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aojea commented Nov 30, 2019

/test pull-kubernetes-e2e-gce
doesn't seems related to this PR

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aojea commented Nov 30, 2019 •
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/hold cancel
this is ready for review
It improves the e2e kind ipv6 tests, right now the kube-proxy and other daemon logs are less verbose with this change, one theory is that maybe having apiserver - etcd communicating in ipv4 and apiserver-kubelet in ipv6 was adding a penalty or a problem
/cc @BenTheElder

@k8s-ci-robot k8s-ci-robot removed the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Nov 30, 2019
@aojea aojea force-pushed the kubeadm_etcd_ipv6 branch from 1698fd1 to d6dffd6 Compare November 30, 2019 10:54
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aojea commented Nov 30, 2019

/test pull-kubernetes-conformance-kind-ipv6
/test pull-kubernetes-e2e-kind-ipv6

@aojea aojea mentioned this pull request Nov 30, 2019
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aojea commented Nov 30, 2019

/test pull-kubernetes-conformance-kind-ipv6
reported flaky test #85762

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aojea commented Nov 30, 2019

/test pull-kubernetes-kubemark-e2e-gce-big

@aojea
kubeadm: use correct IP family for etcd localhost
335a3e9 
kubeadm always use the IPv4 localhost address by defaultA for etcd

The probe hostname is obtained before the generation of the etcd
parameters, so it can't detect the right IP familiy for the
host of the probe.
This causes that with IPv6 clusters doesn't work because the probe
uses the IPv4 localhost address.

This patchs configures the right localhost address based on the used
AdvertiseAddress IP family.
@aojea aojea force-pushed the kubeadm_etcd_ipv6 branch from d6dffd6 to 335a3e9 Compare November 30, 2019 16:25
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aojea commented Nov 30, 2019

/test pull-kubernetes-conformance-kind-ipv6
/test pull-kubernetes-e2e-kind-ipv6

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Thank you @aojea.

/lgtm
/hold
^ for more eyes to lgtm.

@k8s-ci-robot k8s-ci-robot added do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. lgtm "Looks good to me", indicates that a PR is ready to be merged. labels Dec 2, 2019
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/hold cancel

@k8s-ci-robot k8s-ci-robot removed the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Dec 2, 2019
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aojea commented Dec 2, 2019

/test pull-kubernetes-e2e-kind-ipv6

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@aojea: The following test failed, say /retest to rerun them all:

Test name Commit Details Rerun command
pull-kubernetes-e2e-kind-ipv6 335a3e9 link /test pull-kubernetes-e2e-kind-ipv6

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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@k8s-ci-robot k8s-ci-robot merged commit 3769de9 into kubernetes:master Dec 2, 2019
@k8s-ci-robot k8s-ci-robot added this to the v1.18 milestone Dec 2, 2019
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aojea commented Dec 2, 2019

The ipv6 job is flaky and only two storage tests failed, is ok, thanks for the quick reviews

@aojea aojea deleted the kubeadm_etcd_ipv6 branch December 3, 2019 07:23
This was referenced Dec 18, 2019
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@ereslibre ereslibre ereslibre approved these changes

@detiber detiber Awaiting requested review from detiber

@kad kad Awaiting requested review from kad

@BenTheElder BenTheElder Awaiting requested review from BenTheElder

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