1、二进制包准备将软件包从linux-node1复制linux-node2、linux-node3中去
[root@linux-node1 ssl]# cd /usr/local/src/kubernetes/server/bin/
[root@linux-node1 bin]# cp kubelet kube-proxy /opt/kubernetes/bin/
[root@linux-node1 bin]# scp kubelet kube-proxy 192.168.43.22:/opt/kubernetes/bin/
[root@linux-node1 bin]# scp kubelet kube-proxy 192.168.43.23:/opt/kubernetes/bin/
2、创建角色绑定
[root@linux-node1 bin]# kubectl create clusterrolebinding kubelet-bootstrap --clusterrole=system:node-bootstrapper --user=kubelet-bootstrap
clusterrolebinding.rbac.authorization.k8s.io "kubelet-bootstrap" created
3、创建kubelet bootstrapping kubeconfig 文件设置集群参数
[root@linux-node1 bin]# cd /usr/local/src/ssl/
[root@linux-node1 ssl]# kubectl config set-cluster kubernetes \
> --certificate-authority=/opt/kubernetes/ssl/ca.pem \
> --embed-certs=true \
> --server=https://192.168.43.21:6443 \
> --kubeconfig=bootstrap.kubeconfig
Cluster "kubernetes" set.
4、设置客户端认证参数
[root@linux-node1 ssl]# kubectl config set-credentials kubelet-bootstrap \
> --token=c5b00c8b2a61246c61202a53cffed505 \
> --kubeconfig=bootstrap.kubeconfig
User "kubelet-bootstrap" set.
5、设置上下文参数
[root@linux-node1 ~]# kubectl config set-context default \
> --cluster=kubernetes \
> --user=kubelet-bootstrap \
> --kubeconfig=bootstrap.kubeconfig
Context "default" created.
6、选择默认上下文
[root@linux-node1 ~]# kubectl config use-context default --kubeconfig=bootstrap.kubeconfig
Switched to context "default".
[root@linux-node1 ssl]# cp bootstrap.kubeconfig /opt/kubernetes/cfg
[root@linux-node1 ssl]# scp bootstrap.kubeconfig 192.168.43.22:/opt/kubernetes/cfg
[root@linux-node1 ssl]# scp bootstrap.kubeconfig 192.168.43.23:/opt/kubernetes/cfg
7、部署kubelet 1.设置CNI支持（其实只在node2、node3上操作即可）
[root@linux-node1 ~]# mkdir -p /etc/cni/net.d
[root@linux-node2 ~]# mkdir -p /etc/cni/net.d
[root@linux-node3 ~]# mkdir -p /etc/cni/net.d
[root@linux-node1 ~]# vim /etc/cni/net.d/10-default.conf
{
"name": "flannel",
"type": "flannel",
"delegate": {
"bridge": "docker0",
"isDefaultGateway": true,
"mtu": 1400
}
}
[root@linux-node1 ~]# scp /etc/cni/net.d/10-default.conf 192.168.43.22:/etc/cni/net.d/10-default.conf
[root@linux-node1 ~]# scp /etc/cni/net.d/10-default.conf 192.168.43.23:/etc/cni/net.d/10-default.conf
8、创建kubelet目录
[root@linux-node1 ssl]# mkdir /var/lib/kubelet
[root@linux-node2 ~]# mkdir /var/lib/kubelet
[root@linux-node3 ~]# mkdir /var/lib/kubelet
9、创建kubelet服务配置
[root@linux-node1 ssl]# vim /usr/lib/systemd/system/kubelet.service
[Unit]
Description=Kubernetes Kubelet
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
After=docker.service
Requires=docker.service
[Service]
WorkingDirectory=/var/lib/kubelet
ExecStart=/opt/kubernetes/bin/kubelet \
--address=192.168.43.21 \
--hostname-override=192.168.43.21 \
--pod-infra-container-image=mirrorgooglecontainers/pause-amd64:3.0 \
--experimental-bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig \
--kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig \
--cert-dir=/opt/kubernetes/ssl \
--network-plugin=cni \
--cni-conf-dir=/etc/cni/net.d \
--cni-bin-dir=/opt/kubernetes/bin/cni \
--cluster-dns=10.1.0.2 \
--cluster-domain=cluster.local. \
--hairpin-mode hairpin-veth \
--allow-privileged=true \
--fail-swap-on=false \
--logtostderr=true \
--v=2 \
--logtostderr=false \
--log-dir=/opt/kubernetes/log
Restart=on-failure
[root@linux-node1 ssl]# scp /usr/lib/systemd/system/kubelet.service 192.168.43.22:/usr/lib/systemd/system/kubelet.service
[root@linux-node1 ssl]# scp /usr/lib/systemd/system/kubelet.service 192.168.43.23:/usr/lib/systemd/system/kubelet.service
##修改node2、node3配置文件的监听地址为本身##
修改node2
[root@linux-node2 ~]# vim /usr/lib/systemd/system/kubelet.service
[Unit]
Description=Kubernetes Kubelet
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
After=docker.service
Requires=docker.service
[Service]
WorkingDirectory=/var/lib/kubelet
ExecStart=/opt/kubernetes/bin/kubelet \
--address=192.168.43.22 \
--hostname-override=192.168.43.22 \
--pod-infra-container-image=mirrorgooglecontainers/pause-amd64:3.0 \
--experimental-bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig \
--kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig \
--cert-dir=/opt/kubernetes/ssl \
--network-plugin=cni \
--cni-conf-dir=/etc/cni/net.d \
--cni-bin-dir=/opt/kubernetes/bin/cni \
--cluster-dns=10.1.0.2 \
--cluster-domain=cluster.local. \
--hairpin-mode hairpin-veth \
--allow-privileged=true \
--fail-swap-on=false \
--logtostderr=true \
--v=2 \
--logtostderr=false \
--log-dir=/opt/kubernetes/log
Restart=on-failure
RestartSec=5
修改node3
[root@linux-node3 ~]# vim /usr/lib/systemd/system/kubelet.service
[Unit]
Description=Kubernetes Kubelet
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
After=docker.service
Requires=docker.service
[Service]
WorkingDirectory=/var/lib/kubelet
ExecStart=/opt/kubernetes/bin/kubelet \
--address=192.168.43.23 \
--hostname-override=192.168.43.23 \
--pod-infra-container-image=mirrorgooglecontainers/pause-amd64:3.0 \
--experimental-bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig \
--kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig \
--cert-dir=/opt/kubernetes/ssl \
--network-plugin=cni \
--cni-conf-dir=/etc/cni/net.d \
--cni-bin-dir=/opt/kubernetes/bin/cni \
--cluster-dns=10.1.0.2 \
--cluster-domain=cluster.local. \
--hairpin-mode hairpin-veth \
--allow-privileged=true \
--fail-swap-on=false \
--logtostderr=true \
--v=2 \
--logtostderr=false \
--log-dir=/opt/kubernetes/log
Restart=on-failure
RestartSec=5
10、启动kubelet
[root@linux-node1 ssl]# systemctl daemon-reload
[root@linux-node2 ~]# systemctl daemon-reload
[root@linux-node3 ~]# systemctl daemon-reload
[root@linux-node2 ~]# systemctl enable kubelet
[root@linux-node3 ~]# systemctl enable kubelet
[root@linux-node2 ~]# systemctl start kubelet
[root@linux-node3 ~]# systemctl start kubelet
11、查看csr请求，检测有无报错
[root@linux-node1 ssl]# kubectl get csr
NAME AGE REQUESTOR CONDITION
node-csr-AXp3jLRnmxszpoesl-G5Saz8SyJSm3jlxSfmAXxQsaA 32s kubelet-bootstrap Pending
node-csr-cRuooeWpWuHvOdKXCkB9o3JBcD_7KOiDl4heU-0FfYs 30s kubelet-bootstrap Pending
12、批准kubelet的TLS证书请求
[root@linux-node1 ssl]# kubectl get csr|grep 'Pending' | awk 'NR>0{print $1}'| xargs kubectl certificate approve
[root@linux-node1 ssl]# kubectl get nodes