b32e9c4546
Automatic merge from submit-queue (batch tested with PRs 59159, 60318, 60079, 59371, 57415). 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>. Feature/kubeadm 594 etcd TLS on init/upgrade **What this PR does / why we need it**: On `kubeadm init`/`kubeadm upgrade`, this PR generates certificates for securing local etcd: - etcd serving cert - etcd peer cert - apiserver etcd client cert Flags and hostMounts are added to the etcd and apiserver static-pods to load these certs. For connections to etcd, `https` is now used in favor of `http` and tests have been added/updated. Etcd only listens on localhost, so the serving cert SAN defaults to `DNS:localhost,IP:127.0.0.1`. The etcd peer cert has SANs for `<hostname>,<api-advertise-address>`, but is unused. New kubeadm config options, `Etcd.ServerCertSANs` and `Etcd.PeerCertSANs`, are used for user additions to the default certificate SANs for the etcd server and peer certs. This feature continues to utilize the existence of `MasterConfiguration.Etcd.Endpoints` as a feature gate for external-etcd. If the user passes flags to configure `Etcd.{CAFile,CertFile,KeyFile}` but they omit `Endpoints`, these flags will be unused, and a warning is printed. New phase commands: ``` kubeadm alpha phase certs etcd-server kubeadm alpha phase certs etcd-peer kubeadm alpha phase certs apiserver-etcd-client ``` **Which issue(s) this PR fixes** Fixes https://github.com/kubernetes/kubeadm/issues/594 **Special notes for your reviewer**: #### on the master these should fail: ```bash curl localhost:2379/v2/keys # no output curl --cacert /etc/kubernetes/pki/ca.crt https://localhost:2379/v2/keys # handshake error ``` these should succeed: ``` cd /etc/kubernetes/pki curl --cacert ca.crt --cert apiserver-etcd-client.crt --key apiserver-etcd-client.key https://localhost:2379/v2/keys ``` **Release note**: ```release-note On cluster provision or upgrade, kubeadm now generates certs and secures all connections to the etcd static-pod with mTLS. ``` |
||
|---|---|---|
| .github | ||
| api | ||
| build | ||
| cluster | ||
| cmd | ||
| docs | ||
| examples | ||
| Godeps | ||
| hack | ||
| logo | ||
| pkg | ||
| plugin | ||
| staging | ||
| test | ||
| third_party | ||
| translations | ||
| vendor | ||
| .bazelrc | ||
| .generated_files | ||
| .gitattributes | ||
| .gitignore | ||
| .kazelcfg.json | ||
| BUILD.bazel | ||
| CHANGELOG-1.2.md | ||
| CHANGELOG-1.3.md | ||
| CHANGELOG-1.4.md | ||
| CHANGELOG-1.5.md | ||
| CHANGELOG-1.6.md | ||
| CHANGELOG-1.7.md | ||
| CHANGELOG-1.8.md | ||
| CHANGELOG-1.9.md | ||
| CHANGELOG-1.10.md | ||
| CHANGELOG.md | ||
| code-of-conduct.md | ||
| CONTRIBUTING.md | ||
| labels.yaml | ||
| LICENSE | ||
| Makefile | ||
| Makefile.generated_files | ||
| OWNERS | ||
| OWNERS_ALIASES | ||
| README.md | ||
| SUPPORT.md | ||
| WORKSPACE | ||
Kubernetes
Kubernetes is an open source system for managing containerized applications across multiple hosts; providing basic mechanisms for deployment, maintenance, and scaling of applications.
Kubernetes builds upon a decade and a half of experience at Google running production workloads at scale using a system called Borg, combined with best-of-breed ideas and practices from the community.
Kubernetes is hosted by the Cloud Native Computing Foundation (CNCF). If you are a company that wants to help shape the evolution of technologies that are container-packaged, dynamically-scheduled and microservices-oriented, consider joining the CNCF. For details about who's involved and how Kubernetes plays a role, read the CNCF announcement.
To start using Kubernetes
See our documentation on kubernetes.io.
Try our interactive tutorial.
Take a free course on Scalable Microservices with Kubernetes.
To start developing Kubernetes
The community repository hosts all information about building Kubernetes from source, how to contribute code and documentation, who to contact about what, etc.
If you want to build Kubernetes right away there are two options:
You have a working Go environment.
$ go get -d k8s.io/kubernetes
$ cd $GOPATH/src/k8s.io/kubernetes
$ make
You have a working Docker environment.
$ git clone https://github.com/kubernetes/kubernetes
$ cd kubernetes
$ make quick-release
For the full story, head over to the developer's documentation.
Support
If you need support, start with the troubleshooting guide, and work your way through the process that we've outlined.
That said, if you have questions, reach out to us one way or another.