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kubeadm: Make sure --config can be mixed with --skip-* flags #49498

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merged 1 commit into from Jul 25, 2017
Merged

kubeadm: Make sure --config can be mixed with --skip-* flags #49498

merged 1 commit into from Jul 25, 2017

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luxas
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@luxas luxas commented Jul 24, 2017

What this PR does / why we need it:

fixes: kubernetes/kubeadm#352

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Special notes for your reviewer:
Should be a cherrypick candidate

Release note:

kubeadm: Fixes a small bug where `--config` and `--skip-*` flags couldn't be passed at the same time in validation.

@kubernetes/sig-cluster-lifecycle-pr-reviews @ericchiang @wojtek-t

@k8s-ci-robot k8s-ci-robot added the sig/cluster-lifecycle Categorizes an issue or PR as relevant to SIG Cluster Lifecycle. label Jul 24, 2017
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luxas commented Jul 24, 2017

cc @mattmoyer

@k8s-ci-robot k8s-ci-robot added the cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. label Jul 24, 2017
@luxas luxas added the kind/bug Categorizes issue or PR as related to a bug. label Jul 24, 2017
@luxas luxas added this to the v1.7 milestone Jul 24, 2017
@k8s-github-robot k8s-github-robot added approved Indicates a PR has been approved by an approver from all required OWNERS files. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. release-note Denotes a PR that will be considered when it comes time to generate release notes. labels Jul 24, 2017
@luxas luxas mentioned this pull request Jul 24, 2017
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timothysc
timothysc suggested changes Jul 24, 2017
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Minor comment, the code is not super friendly to read. I would prefer to output the flags that were bad.

cmd/kubeadm/app/apis/kubeadm/validation/validation.go Outdated
return fmt.Errorf("can not mix '--config' with other arguments")
if flag.Changed("config") {
numFlagsAllowedToChange := 1
flagsAllowedToChangeWithConfig := []string{"skip-preflight-checks", "skip-token-print"}
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Can't you just check to see if the flags are anything other then these two and output an error indicating the flags they specified?

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You probably want Flagset.Visit https://godoc.org/github.com/spf13/pflag#FlagSet.Visit

mixedFlags := []string{}
flag.Visit(func(f *pflag.Flag) {
    if f.Name == "config" || strings.HasPrefix(f.Name, "skip-") {
        // "skip=*" flags can be set with --config
        return
    }
    mixedFlags = append(mixedFlags, f.Name)
})

@luxas luxas force-pushed the kubeadm_fix_config_validation branch from a96b60d to aa46947 Compare July 24, 2017 19:21
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luxas commented Jul 24, 2017

/retest

timothysc
timothysc approved these changes Jul 24, 2017
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/lgtm - thx for the change, much easier to read.

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: luxas, timothysc

Associated issue: 352

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

Needs approval from an approver in each of these OWNERS Files:

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luxas commented Jul 24, 2017

/retest

@luxas luxas added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Jul 24, 2017
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luxas commented Jul 25, 2017

/retest

@wojtek-t wojtek-t added the cherry-pick-approved Indicates a cherry-pick PR into a release branch has been approved by the release branch manager. label Jul 25, 2017
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Automatic merge from submit-queue (batch tested with PRs 49498, 49192)

@k8s-github-robot k8s-github-robot merged commit c31a137 into kubernetes:master Jul 25, 2017
k8s-github-robot pushed a commit that referenced this pull request Jul 25, 2017
Merge pull request #49499 from luxas/automated-cherry-pick-of-#49498-#…
5620b07 
…49328-upstream-release-1.7

Automatic merge from submit-queue

Automated cherry pick of #49498 #49328

Cherry pick of #49498 #49328 on release-1.7.

#49498: kubeadm: Make sure --config can be mixed with --skip-* flags
#49328: kubeadm: don't customize etcd selinux label
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Commit found in the "release-1.7" branch appears to be this PR. Removing the "cherrypick-candidate" label. If this is an error find help to get your PR picked.

@fabriziopandini fabriziopandini mentioned this pull request Aug 9, 2017
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approved Indicates a PR has been approved by an approver from all required OWNERS files. cherry-pick-approved Indicates a cherry-pick PR into a release branch has been approved by the release branch manager. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. kind/bug Categorizes issue or PR as related to a bug. lgtm "Looks good to me", indicates that a PR is ready to be merged. release-note Denotes a PR that will be considered when it comes time to generate release notes. sig/cluster-lifecycle Categorizes an issue or PR as relevant to SIG Cluster Lifecycle. size/M Denotes a PR that changes 30-99 lines, ignoring generated files.
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Successfully merging this pull request may close these issues.

kubeadm init: can't skip preflight checks if config is provided
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