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reflect readiness probe in health check for NEG enabled ClusterIP service backend #582

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merged 1 commit into from
Dec 20, 2018

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freehan
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@freehan freehan commented Dec 14, 2018

fixes: #541

@k8s-ci-robot k8s-ci-robot added cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. labels Dec 14, 2018
@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Dec 14, 2018
@freehan freehan force-pushed the neg-readiness-probe branch 2 times, most recently from 3b32456 to 053f57c Compare December 14, 2018 19:40
@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 Dec 14, 2018
@freehan freehan force-pushed the neg-readiness-probe branch 2 times, most recently from d696c01 to 7129d62 Compare December 14, 2018 20:16
// only one Service can match this nodePort, try and look up
// the readiness probe of the pods behind it
if int32(port.NodePort) == sp.NodePort {
if port.NodePort != 0 && int32(port.NodePort) == sp.NodePort {
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Can you explain this check?

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For ClusterIP type service, NodePort will be 0.
For NEG, ingress can point to ClusterIP type service.
Then before this PR, when it gets here, it may pick up a random ClusterIP type service because its NodePort is 0 and use the corresponding pod's readiness probe which can be totally irrelevant.
This has not break anything because ingress requires NodePort type service before.
For NEG case, it will captured above.
Adding this check just to provide additional safety.

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Ack.

@rramkumar1
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/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Dec 20, 2018
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: freehan, rramkumar1

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@k8s-ci-robot k8s-ci-robot merged commit 75b0cac into kubernetes:master Dec 20, 2018
k8s-ci-robot added a commit that referenced this pull request Feb 11, 2019
Cherrypick #582 into release-1.4 branch
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Readiness Probe does not get reflected for NEG enabled ingress
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