kubernetes1.13之后的kubeadm init config

时间：2021-08-15 04:12:40

1、kubernetes1.13之后kubeadm开始GA，由于1.13的kube-proxy有bug，删除ipvs的地方总是导致kube-proxy挂掉，所以建议直接用1.13.2，这个版本解决了bug。

！Fix race condition introduced by graceful termination which can lead to a deadlock in kube-proxy

！Support graceful termination with IPVS when deleting a service

！kube-proxy in IPVS mode will stop initiating connections to terminating pods for services with sessionAffinity set

kubeadm的配置文件较之前有了一些改变，版本变成了v1beta1,虽然目前老的版本在1.13里也是可用的，但是1.14就会废弃掉，所以建议直接使用新的config进行初始化

下面给出我的1.13.2版本使用的kubeadm  init config:

cat  kubeadm-13.yaml

---

apiVersion: kubeproxy.config.k8s.io/v1alpha1

kind: KubeProxyConfiguration

mode: "ipvs"

---

apiVersion: kubeadm.k8s.io/v1beta1

certificatesDir: /etc/kubernetes/pki

clusterName: kubernetes

controlPlaneEndpoint: "10.4.9.210"

dns:

  type: CoreDNS

imageRepository: k8s.gcr.io

kind: ClusterConfiguration

kubernetesVersion: v1.13.2

networking:

  dnsDomain: cluster.local

  podSubnet: 192.244.0.0/

  serviceSubnet: 192.96.0.0/

apiServer:

  timeoutForControlPlane: 4m0s

  certSANs:

  - 10.4.73.110

  - 10.4.68.77

  - 10.4.83.248

  - ku13-

  - ku13-

  - ku13-

  - 127.0.0.1

  - localhost

  - 10.4.9.210

controllerManager:

  extraArgs:

    address: 0.0.0.0

scheduler:

  extraArgs:

    address: 0.0.0.0

etcd:

  external:

    endpoints:

    - https://10.4.73.110:2379

    - https://10.4.68.77:2379

    - https://10.4.83.248:2379

    caFile: /etc/kubernetes/ssl/ca.pem

    certFile: /etc/etcd/ssl/etcd.pem

    keyFile: /etc/etcd/ssl/etcd-key.pem

kubeadm1.13+ 支持的configuration types：

apiVersion: kubeadm.k8s.io/v1beta1

kind: InitConfiguration

apiVersion: kubeadm.k8s.io/v1beta1

kind: ClusterConfiguration

apiVersion: kubelet.config.k8s.io/v1beta1

kind: KubeletConfiguration

apiVersion: kubeproxy.config.k8s.io/v1alpha1

kind: KubeProxyConfiguration

apiVersion: kubeadm.k8s.io/v1beta1

kind: JoinConfiguration

具体变动参考：

https://godoc.org/k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/v1beta1

https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.13.md#changelog-since-v1131

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