解压node节点压缩包,并将其中的二进制文件发送到指定位置node
tar -zxvf kubernetes-node-linux-amd64.tar.gz mkdir /k8s/node/{bin,ssl,config} -p cd kubernetes/node/bin/ cp kubelet kube-proxy /k8s/node/bin/
./kubectl config set-cluster kubernetes \ --certificate-authority=/k8s/node/ssl/ca.pem \ --embed-certs=true \ --server=https://192.168.1.250:6443 \ --kubeconfig=bootstrap.kubeconfig
./kubectl config set-credentials kubelet-bootstrap \ --token=1aef0e8e0b24943e3b86db2d01afcc15 \ --kubeconfig=bootstrap.kubeconfig
./kubectl config set-context default \ --cluster=kubernetes \ --user=kubelet-bootstrap \ --kubeconfig=bootstrap.kubeconfig
./kubectl config use-context default --kubeconfig=bootstrap.kubeconfig
cp bootstrap.kubeconfig /k8s/node/config/ scp bootstrap.kubeconfig 192.168.1.252:/k8s/node/config/
vi /k8s/node/config/kubelet.config kind: KubeletConfiguration apiVersion: kubelet.config.k8s.io/v1beta1 address: 192.168.1.251 port: 10250 readOnlyPort: 10255 cgroupDriver: cgroupfs clusterDNS: ["10.0.0.2"] clusterDomain: cluster.local. failSwapOn: false authentication: anonymous: enabled: true
vi /k8s/node/config/kubelet KUBELET_OPTS="--logtostderr=true \ --v=4 \ --hostname-override=192.168.1.251 \ --kubeconfig=/k8s/node/config/kubelet.kubeconfig \ --bootstrap-kubeconfig=/k8s/node/config/bootstrap.kubeconfig \ --config=/k8s/node/config/kubelet.config \ --cert-dir=/k8s/node/ssl \ --pod-infra-container-image=registry.cn-hangzhou.aliyuncs.com/google-containers/pause-amd64:3.0"
建立应用linux
vi /usr/lib/systemd/system/kubelet.service [Unit] Description=Kubernetes Kubelet After=docker.service Requires=docker.service [Service] EnvironmentFile=/k8s/node/config/kubelet ExecStart=/k8s/node/bin/kubelet $KUBELET_OPTS Restart=on-failure KillMode=process [Install] WantedBy=multi-user.target
./kubectl create clusterrolebinding kubelet-bootstrap \ --clusterrole=system:node-bootstrapper \ --user=kubelet-bootstrap
systemctl daemon-reload
systemctl enable kubelet
systemctl restart kubelet
systemctl status kubelet
能够看到有一个未批准的证书web
[root@node9 bin]# kubectl get csr NAME AGE REQUESTOR CONDITION node-csr-8kntaktl8b6rd8gkRsnTI0x9JPEQTbSqD2mCqiDNbmc 18m kubelet-bootstrap Pending
cd /k8s/node/ scp -r * 192.168.1.252:/k8s/node/ scp /usr/lib/systemd/system/kubelet.service 192.168.1.252:/usr/lib/systemd/system/kubelet.service
再次查看csr请求能够看到两个节点都存在了
执行批准命令docker
kubectl get csr|grep 'Pending' | awk 'NR>0{print $1}'| xargs kubectl certificate approve kubectl get csr
能够看到两个节点状态是批准的了
shell
##master 角色 kubectl label node 192.168.1.250 node-role.kubernetes.io/master='master' kubectl label node 192.168.1.251 node-role.kubernetes.io/node='node' kubectl label node 192.168.1.252 node-role.kubernetes.io/node='node' ##删除某一个 kubectl label node/192.168.1.252 node-role.kubernetes.io/node-
cat << EOF | tee kube-proxy-csr.json { "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=/k8s/node/ssl/ca.pem \ -ca-key=/k8s/node/ssl/ca-key.pem \ -config=/home/sslTools/ssl/ca-config.json \ -profile=k8s kube-proxy-csr.json | cfssljson -bare kube-proxy cp kube-proxy* /k8s/node/ssl/
yum install -y ipvsadm ipset conntrack
# 建立kube-proxy kubeconfig文件 /home/k8stools/kubernetes/node/bin/kubectl config set-cluster kubernetes \ --certificate-authority=/k8s/node/ssl/ca.pem \ --embed-certs=true \ --server=https://192.168.1.250:6443 \ --kubeconfig=kube-proxy.kubeconfig /home/k8stools/kubernetes/node/bin/kubectl config set-credentials kube-proxy \ --client-certificate=/k8s/node/ssl/kube-proxy.pem \ --client-key=/k8s/node/ssl/kube-proxy-key.pem \ --embed-certs=true \ --kubeconfig=kube-proxy.kubeconfig /home/k8stools/kubernetes/node/bin/kubectl config set-context default \ --cluster=kubernetes \ --user=kube-proxy \ --kubeconfig=kube-proxy.kubeconfig /home/k8stools/kubernetes/node/bin/kubectl config use-context default --kubeconfig=kube-proxy.kubeconfig cp kube-proxy* /k8s/node/ssl/ cp kube-proxy.kubeconfig /k8s/node/config/
配置文件建立json
vi /k8s/node/config/kube-proxy KUBE_PROXY_OPTS="--logtostderr=true \ --v=4 \ --hostname-override=192.168.1.251 \ --cluster-cidr=10.0.0.0/24 \ --kubeconfig=/k8s/node/config/kube-proxy.kubeconfig"
vi /usr/lib/systemd/system/kube-proxy.service [Unit] Description=Kubernetes Proxy After=network.target [Service] EnvironmentFile=-/k8s/node/config/kube-proxy ExecStart=/k8s/node/bin/kube-proxy $KUBE_PROXY_OPTS Restart=on-failure [Install] WantedBy=multi-user.target
systemctl daemon-reload
systemctl enable kube-proxy
systemctl restart kube-proxy
systemctl status kube-proxy
ok,将所需文件传输到另外一节点上一样方式启动验证。注意更改 /k8s/node/config/kube-proxy 文件的hostname-override 属性bootstrap
至此,node节点所有配置结束