The kubeadm-operator is an experimental project, still WIP. Do not use in production.
See KEP for more details.
See email threads in https://mail.google.com/mail/u/0/#inbox/FMfcgzGqPpgGlrWbcSVJpPnNjmbXXcQf.
Configure kubeconfig for your cluster.
git clone [email protected]:pacoxu/kubeadm-operator.git
cd kubeadm-operator
make install
make deploy
**Notice: for pod cannot restart kubelet, kubelet-reloadershould run on all cluster nodes as a daemon or process. **
wget https://github.com/pacoxu/kubeadm-operator/releases/download/v0.1.0/kubelet-reloader-v0.2.0
chmod +x kubelet-reloader-v0.2.0
./kubelet-reloader-v0.2.0
#85 is for this problem.
- ✅✅ means supported and suggested
- ✅❌ means supported but not suggested
- ❌❌ means not supported and not suggested
- Empty means no testing yet.
| initial version\ target version | v1.20 | v1.21 | v1.22 | v1.23 | v1.24 |
|---|---|---|---|---|---|
| v1.20 | |||||
| v1.21 | |||||
| v1.22 | ✅✅ | ✅✅ | ✅✅ | ||
| v1.23 | ❌❌ | ✅❌ | ✅✅ | ✅✅ | |
| v1.24 | ❌❌ | ❌❌ | ✅❌ | ✅✅ |
To build your own kubeadm-operator image:
make docker-build
You can change the IMG in Makefile to push the image to your repository and install/deploy to the development cluster.
make release
make install
make deploy
After installation, a deploy named operator-controller-manager is running in namespace operator-system.
[root@daocloud ~]# kubectl get pod -n operator-system -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
operator-controller-manager-64c448f5b-p682x 2/2 Running 0 77m 172.32.230.197 daocloud <none> <none>
If you create a dry-run upgrade operation, there will be a runtimetaqskgroup with
[root@paco ~]# cat up.yaml
apiVersion: operator.kubeadm.x-k8s.io/v1alpha1
kind: Operation
metadata:
name: upgrade-v1.24.1
spec:
executionMode: Auto
upgrade:
kubernetesVersion: v1.24.1
local: false
After the operation is done, the operation and task group are all Succeeded.
NAME PHASE GROUPS SUCCEEDED FAILED
operation.operator.kubeadm.x-k8s.io/upgrade-v1.24.1 Succeeded 4 4
NAME PHASE STARTTIME COMMAND COMPLETIONTIME
runtimetask.operator.kubeadm.x-k8s.io/upgrade-v1.24.1-v1.23.0-01-upgrade-apply-paco Succeeded 20m 3/3 12m
runtimetask.operator.kubeadm.x-k8s.io/upgrade-v1.24.1-v1.23.0-04-upgrade-worker-daocloud Succeeded 12m 5/5 10m
runtimetask.operator.kubeadm.x-k8s.io/upgrade-v1.24.1-v1.24.1-01-upgrade-apply-paco Succeeded 10m 3/3 3m25s
runtimetask.operator.kubeadm.x-k8s.io/upgrade-v1.24.1-v1.24.1-04-upgrade-worker-daocloud Succeeded 3m21s 5/5 55s
NAME PHASE NODES SUCCEEDED FAILED
runtimetaskgroup.operator.kubeadm.x-k8s.io/upgrade-v1.24.1-v1.23.0-01-upgrade-apply Succeeded 1 1
runtimetaskgroup.operator.kubeadm.x-k8s.io/upgrade-v1.24.1-v1.23.0-04-upgrade-worker Succeeded 1 1
runtimetaskgroup.operator.kubeadm.x-k8s.io/upgrade-v1.24.1-v1.24.1-01-upgrade-apply Succeeded 1 1
runtimetaskgroup.operator.kubeadm.x-k8s.io/upgrade-v1.24.1-v1.24.1-04-upgrade-worker Succeeded 1 1
[root@paco ~]# kubelet --version
Kubernetes v1.24.1
[root@paco ~]# kubeadm version
kubeadm version: &version.Info{Major:"1", Minor:"24", GitVersion:"v1.24.1", GitCommit:"3ddd0f45aa91e2f30c70734b175631bec5b5825a", GitTreeState:"clean", BuildDate:"2022-05-24T12:24:38Z", GoVersion:"go1.18.2", Compiler:"gc", Platform:"linux/amd64"}
[root@paco ~]# kubectl version
WARNING: This version information is deprecated and will be replaced with the output from kubectl version --short. Use --output=yaml|json to get the full version.
Client Version: version.Info{Major:"1", Minor:"24", GitVersion:"v1.24.1", GitCommit:"3ddd0f45aa91e2f30c70734b175631bec5b5825a", GitTreeState:"clean", BuildDate:"2022-05-24T12:26:19Z", GoVersion:"go1.18.2", Compiler:"gc", Platform:"linux/amd64"}
Kustomize Version: v4.5.4
Server Version: version.Info{Major:"1", Minor:"24", GitVersion:"v1.24.1", GitCommit:"3ddd0f45aa91e2f30c70734b175631bec5b5825a", GitTreeState:"clean", BuildDate:"2022-05-24T12:18:48Z", GoVersion:"go1.18.2", Compiler:"gc", Platform:"linux/amd64"}
[root@paco ~]# kubectl get node
NAME STATUS ROLES AGE VERSION
daocloud Ready <none> 6h36m v1.24.1
paco Ready control-plane 6h37m v1.24.1