42a73ee3ac
Automatic merge from submit-queue Add --feature-gate flags to kubeadm **What this PR does / why we need it**: Adds `--feature-gates` in similar manner to other `cmd` binaries **Which issue this PR fixes** https://github.com/kubernetes/kubeadm/issues/323 **Special notes for your reviewer**: This results in a lot of probably unnecessary feature flags. I'm guessing a lot of kubeadm users will be confused when they see: ``` Flags: --feature-gates mapStringBool A set of key=value pairs that describe feature gates for alpha/experimental features. Options are: APIResponseCompression=true|false (ALPHA - default=false) Accelerators=true|false (ALPHA - default=false) AdvancedAuditing=true|false (ALPHA - default=false) AllAlpha=true|false (ALPHA - default=false) AllowExtTrafficLocalEndpoints=true|false (default=true) AppArmor=true|false (BETA - default=true) DebugContainers=true|false (ALPHA - default=false) DynamicKubeletConfig=true|false (ALPHA - default=false) DynamicVolumeProvisioning=true|false (ALPHA - default=true) ExperimentalCriticalPodAnnotation=true|false (ALPHA - default=false) ExperimentalHostUserNamespaceDefaulting=true|false (BETA - default=false) LocalStorageCapacityIsolation=true|false (ALPHA - default=false) PersistentLocalVolumes=true|false (ALPHA - default=false) PodPriority=true|false (ALPHA - default=false) RotateKubeletClientCertificate=true|false (ALPHA - default=false) RotateKubeletServerCertificate=true|false (ALPHA - default=false) StreamingProxyRedirects=true|false (BETA - default=true) TaintBasedEvictions=true|false (ALPHA - default=false) -h, --help help for kubeadm ``` However the feature flags used in the core pkg is global, so I don't think it can be overriden. So we have a few options: 1. Allow these flags for kubeadm 2. Refactor feature pkg to allow granular features 3. Roll our own feature gating for kubeadm /cc @luxas
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