kubectl配置管理远程连接集群

一、生成管理员证书

cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes admin-csr.json | cfssljson -bare admin
# cd TLS/k8s
# vim admin-csr.json
{
  "CN": "admin",
  "hosts": [],
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
      "L": "Guizhou",
      "ST": "Guizhou",
      "O": "system:masters",
      "OU": "System"
    }
  ]
}

二、创建kubeconfig文件

# 设置集群参数
kubectl config set-cluster kubernetes \
  --server=https://192.168.31.61:6443 \
  --certificate-authority=ca.pem \
  --embed-certs=true \
  --kubeconfig=config

# 设置客户端认证参数

kubectl config set-credentials cluster-admin \
  --certificate-authority=ca.pem \
  --embed-certs=true \
  --client-key=admin-key.pem \
  --client-certificate=admin.pem \
  --kubeconfig=config

# 设置上下文参数

kubectl config set-context default \
  --cluster=kubernetes \
  --user=cluster-admin \
  --kubeconfig=config

# 设置默认上下文

kubectl config set-context default --cluster=kubernetes --user=cluster-admin --kubeconfig=config
kubectl config use-context default --kubeconfig=config