kubernetes集群搭建(二进制方式)之--node部署kube-proxy
-
- 1.创建配置文件
- 2.配置参数文件
- 3.生成kube-proxy证书
- 4.生成kubeconfig文件
- 5.systemd管理kube-proxy
- 6.开启并设置开机自启
node包括的组件
- etcd 用于存储(已安装)
- docker (已安装)
- kubelet (已安装)
- kube-proxy (本章安装)
1.创建配置文件
cat > /data/kubernetes/cfg/kube-proxy.conf << EOF
KUBE_PROXY_OPTS="--logtostderr=false \\
--v=2 \\
--log-dir=/data/kubernetes/logs \\
--config=/data/kubernetes/cfg/kube-proxy-config.yml"
EOF
2.配置参数文件
cat > /data/kubernetes/cfg/kube-proxy-config.yml << EOF
kind: KubeProxyConfiguration
apiVersion: kubeproxy.config.k8s.io/v1alpha1
bindAddress: 0.0.0.0
metricsBindAddress: 0.0.0.0:10249
clientConnection:
kubeconfig: /data/kubernetes/cfg/kube-proxy.kubeconfig
hostnameOverride: k8snode1
clusterCIDR: 10.0.0.0/24
EOF
3.生成kube-proxy证书
master节点中操作
cat > kube-proxy-csr.json<< EOF
{
"CN": "system:kube-proxy",
"hosts": [],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [{
"C": "CN",
"L": "BeiJing",
"ST": "BeiJing",
"O": "k8s",
"OU": "System"
}]
}
EOF
cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes kube-proxy-csr.json | cfssljson -bare kube-proxy
拷贝到node节点
4.生成kubeconfig文件
kubectl config set-cluster kubernetes \
--certificate-authority=/data/kubernetes/ssl/ca.pem \
--embed-certs=true \
--server=${KUBE_APISERVER} \
--kubeconfig=kube-proxy.kubeconfig
kubectl config set-credentials kube-proxy \
--client-certificate=./kube-proxy.pem \
--client-key=./kube-proxy-key.pem \
--embed-certs=true \
--kubeconfig=kube-proxy.kubeconfig
kubectl config set-context default \
--cluster=kubernetes \
--user=kube-proxy \
--kubeconfig=kube-proxy.kubeconfig
kubectl create clusterrolebinding kube-proxy --clusterrole=system:node-bootstrapper --user=kube-proxy
kubectl config use-context default --kubeconfig=kube-proxy.kubeconfig
拷贝到node节点的配置中
5.systemd管理kube-proxy
cat > /usr/lib/systemd/system/kube-proxy.service << EOF
[Unit]
Description=Kubernetes Proxy
After=network.target
[Service]
EnvironmentFile=/data/kubernetes/cfg/kube-proxy.conf
ExecStart=/data/kubernetes/bin/kube-proxy \$KUBE_PROXY_OPTS
Restart=on-failure
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
EOF
6.开启并设置开机自启
systemctl daemon-reload
systemctl start kube-proxy
systemctl enable kube-proxy
systemctl status kube-proxy