b6f75ac30e
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Promote sysctl annotations to fields # **What this PR does / why we need it**: Promoting experimental sysctl feature from annotations to API fields. **Special notes for your reviewer**: Following sysctl KEP: https://github.com/kubernetes/community/pull/2093 **Release note**: ```release-note The Sysctls experimental feature has been promoted to beta (enabled by default via the `Sysctls` feature flag). PodSecurityPolicy and Pod objects now have fields for specifying and controlling sysctls. Alpha sysctl annotations will be ignored by 1.11+ kubelets. All alpha sysctl annotations in existing deployments must be converted to API fields to be effective. ``` **TODO**: * [x] - Promote sysctl annotation in Pod spec * [x] - Promote sysctl annotation in PodSecuritySpec spec * [x] - Feature gate the sysctl * [x] - Promote from alpha to beta * [x] - docs PR - https://github.com/kubernetes/website/pull/8804