# Contributing

Welcome to Kubernetes! To learn more about contributing to the [Kubernetes code repo](README.md), check out the [Contributor's Guide](https://git.k8s.io/community/contributors/guide/).

The [Kubernetes community repo](https://github.com/kubernetes/community) contains information about how to get started, how the community organizes, and more.

## Sign the CLA

* Disable proxy to loopback and linklocal ([#71980](https://github.com/kubernetes/kubernetes/pull/71980), [@micahhausler](https://github.com/micahhausler))
* Do not detach volume if mount in progress ([#71145](https://github.com/kubernetes/kubernetes/pull/71145), [@gnufied](https://github.com/gnufied))

* Properly manage security groups for loadbalancer services on OpenStack. ([#65373](https://github.com/kubernetes/kubernetes/pull/65373), [@multi-io](https://github.com/multi-io))

### Feature

- Kubernetes is now built with Golang 1.16.15 ([#108565](https://github.com/kubernetes/kubernetes/pull/108565), [@cpanato](https://github.com/cpanato)) [SIG Cloud Provider, Instrumentation, Release and Testing]

- Kubeadm: fix panic in the command "kubeadm certs check-expiration" when "/etc/kubernetes/pki" exists but cannot be read. ([#124124](https://github.com/kubernetes/kubernetes/pull/124124), [@carlory](https://github.com/carlory)) [SIG Cluster Lifecycle]

//  1. client certificates to authenticate to kube-apiserver (with the "kubernetes.io/kube-apiserver-client-kubelet" signerName).
//  2. serving certificates for TLS endpoints kube-apiserver can connect to securely (with the "kubernetes.io/kubelet-serving" signerName).
//
// This API can be used to request client certificates to authenticate to kube-apiserver
// (with the "kubernetes.io/kube-apiserver-client" signerName),

due to design choices in Helm.
The underlying Kubernetes resources we configure have 1000s of fields; given enough users and bespoke use cases,
eventually someone will want to customize every one of those fields.
If all fields are exposed in `values.yaml`, we end up with an massive API that is also likely worse than just using the Kubernetes API directly.

-------- | -----------
[kubernetes-node-linux-amd64.tar.gz](https://dl.k8s.io/v1.7.16/kubernetes-node-linux-amd64.tar.gz) | `7a3f4bea9f0bb3ade3303143d13e165336211f9a50242cc28afe69569b2df347`
[kubernetes-node-linux-arm.tar.gz](https://dl.k8s.io/v1.7.16/kubernetes-node-linux-arm.tar.gz) | `904e8a8a0e887528847f6af009ccdc29b9cc1cbd1a2bd2a6092e3ad57d9e524f`

* Copy and display source location prominently on Kubernetes instances ([#27985](https://github.com/kubernetes/kubernetes/pull/27985), [@maisem](https://github.com/maisem))
* Federation e2e support for AWS ([#27791](https://github.com/kubernetes/kubernetes/pull/27791), [@colhom](https://github.com/colhom))
* Copy and display source location prominently on Kubernetes instances ([#27840](https://github.com/kubernetes/kubernetes/pull/27840), [@zmerlynn](https://github.com/zmerlynn))

* fix vmss dirty cache issue in disk attach/detach on vmss node ([#85158](https://github.com/kubernetes/kubernetes/pull/85158), [@andyzhangx](https://github.com/andyzhangx))
* fix race condition when attach/delete azure disk in same time ([#84917](https://github.com/kubernetes/kubernetes/pull/84917), [@andyzhangx](https://github.com/andyzhangx))