add a case is ID="centos"

[CuZn13]

When reading "/etc/os-release" file , ID="centos", report an error “Unsupported ID in /etc/os-release:......”

[k8s-ci-robot]

Hi @CuZn13. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

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.

[xueweiz]

Hi @CuZn13 ,

Could you also add an unit test for parsing the "/etc/os-release" of CentOS?
You can see an example here.

Thanks!

[xueweiz]

/ok-to-test

[xueweiz]

Thanks for adding the unit test! It's very helpful for someone like me who don't have a CentOS machine at hand to see how its /etc/os-release looks like :)

/lgtm
/cc @wangzhen127
/cc @Random-Liu

[xueweiz]

nit: the formatter is complaining that this file does not have a trailing newline character.
So if you could add a newline character at the end, it would be great :)

[CuZn13]

ok

[xueweiz]

Hi @CuZn13 ,

I think the commit "When the state changes, it may be necessary to output customized mess…" is unintentional, right?

If you are working on some experiments, it's probably easier to create a new branch (git checkout -b exp), and try things out there. Your current branch (which is master) is tied to this PR. It's best to keep it clean :)

Also, I suggest you to merge the two "add an unit test for parsing the "/etc/os-release" of CentOS" commit into one. You can do that via running git rebase -i HEAD^^^^, then edit the history there.

[CuZn13]

Sorry, I was careless. I'll fix it later

[CuZn13]

/test pull-npd-e2e-kubernetes-gce-ubuntu

[CuZn13]

/test pull-npd-e2e-kubernetes-gce-gci-custom-flags

[CuZn13]

/test pull-npd-e2e-kubernetes-gce-gci

[xueweiz]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CuZn13, xueweiz

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [xueweiz]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[xueweiz]

/retest

[CuZn13]

/retest