mowings/kubeadm.md

## kubeadm.md

      
    Raw
  

              kubeadm.md
            
          
    Since there's no (or not many) real examples of valid kubeadm config files out there (for use with kubeadm --config <file>),
here is an example. This version declares a control plane endpoint, the proxy for an HA setup, and also includes a
KubeProxyConfiguation to tell kube-proxy to use ipvs.
You can leave off the controlPlaneEndpoint (which points to the HA proxy ip:port) if you are not running in
HA mode, and you can omit the KubeProxyConfiguration if you are satisfied with using the default of iptables
for the proxy mode.
To initalize an HA setup using this file with kubeadm, you can execute:
kubeadm --config kubeadm.yml --upload-certs

If you are not running multile masters, you can omit the upload-certs argument and remove the controlPlaneEndpoint
from the config file.
apiVersion: kubeadm.k8s.io/v1beta2
kind: ClusterConfiguration
kubernetesVersion: v1.16.4
apiServer:
  extraArgs:
    authorization-mode: Node,RBAC
  timeoutForControlPlane: 4m0s
certificatesDir: /etc/kubernetes/pki
clusterName: kubernetes
controlPlaneEndpoint: 10.98.83.105:6443
dns:
  type: CoreDNS
etcd:
  local:
    dataDir: /var/lib/etcd
imageRepository: k8s.gcr.io
networking:
  dnsDomain: cluster.local
  podSubnet: 10.244.0.0/16
  serviceSubnet: 10.96.0.0/12
---
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
mode: ipvs