1、配置kube-proxy使用LVS(三个节点都装上去)
[root@linux-node1 ssl]# yum install -y ipvsadm ipset conntrack
[root@linux-node2 ssl]# yum install -y ipvsadm ipset conntrack
[root@linux-node3 ssl]# yum install -y ipvsadm ipset conntrack
2、创建kube-proxy证书请求
[root@linux-node1 ssl]# vim kube-proxy-csr.json
{
"CN": "system:kube-proxy",
"hosts": [],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"ST": "BeiJing",
"L": "BeiJing",
"O": "k8s",
"OU": "System"
}
]
}
3、生成证书
[root@linux-node1 ssl]# cfssl gencert -ca=/opt/kubernetes/ssl/ca.pem \
> -ca-key=/opt/kubernetes/ssl/ca-key.pem \
> -config=/opt/kubernetes/ssl/ca-config.json \
> -profile=kubernetes kube-proxy-csr.json | cfssljson -bare kube-proxy
4、分发证书到所有Node节点
[root@linux-node1 ssl]# cp kube-proxy*.pem /opt/kubernetes/ssl/
[root@linux-node1 ssl]# scp kube-proxy*.pem 192.168.43.22:/opt/kubernetes/ssl/
[root@linux-node1 ssl]# scp kube-proxy*.pem 192.168.43.23:/opt/kubernetes/ssl/
5、创建kube-proxy配置文件
[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=kube-proxy.kubeconfig
Cluster "kubernetes" set.
[root@linux-node1 ssl]# kubectl config set-credentials kube-proxy \
> --client-certificate=/opt/kubernetes/ssl/kube-proxy.pem \
> --client-key=/opt/kubernetes/ssl/kube-proxy-key.pem \
> --embed-certs=true \
> --kubeconfig=kube-proxy.kubeconfig
User "kube-proxy" set.
[root@linux-node1 ssl]# kubectl config set-context default \
> --cluster=kubernetes \
> --user=kube-proxy \
> --kubeconfig=kube-proxy.kubeconfig
Context "default" created.
[root@linux-node1 ssl]# kubectl config use-context default --kubeconfig=kube-proxy.kubeconfig
Switched to context "default".
6、分发kubeconfig配置文件
[root@linux-node1 ssl]# cp kube-proxy.kubeconfig /opt/kubernetes/cfg/
[root@linux-node1 ssl]# scp kube-proxy.kubeconfig 192.168.43.22:/opt/kubernetes/cfg/
[root@linux-node1 ssl]# scp kube-proxy.kubeconfig 192.168.43.23:/opt/kubernetes/cfg/
7、创建kube-proxy服务配置
[root@linux-node1 ssl]# mkdir /var/lib/kube-proxy
[root@linux-node2 ssl]# mkdir /var/lib/kube-proxy
[root@linux-node3 ssl]# mkdir /var/lib/kube-proxy
[root@linux-node1 ssl]# vim /usr/lib/systemd/system/kube-proxy.service
[Unit]
Description=Kubernetes Kube-Proxy Server
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
After=network.target
[Service]
WorkingDirectory=/var/lib/kube-proxy
ExecStart=/opt/kubernetes/bin/kube-proxy \
--bind-address=192.168.43.21 \
--hostname-override=192.168.43.21 \
--kubeconfig=/opt/kubernetes/cfg/kube-proxy.kubeconfig \
--masquerade-all \
--feature-gates=SupportIPVSProxyMode=true \
--proxy-mode=ipvs \
--ipvs-min-sync-period=5s \
--ipvs-sync-period=5s \
--ipvs-scheduler=rr \
--logtostderr=true \
--v=2 \
--logtostderr=false \
--log-dir=/opt/kubernetes/log
Restart=on-failure
RestartSec=5
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
[root@linux-node1 ssl]# scp /usr/lib/systemd/system/kube-proxy.service 192.168.43.22:/usr/lib/systemd/system/kube-proxy.service
[root@linux-node1 ssl]# scp /usr/lib/systemd/system/kube-proxy.service 192.168.43.23:/usr/lib/systemd/system/kube-proxy.service
[root@linux-node2 ssl]# vim /usr/lib/systemd/system/kube-proxy.service
[Unit]
Description=Kubernetes Kube-Proxy Server
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
After=network.target
[Service]
WorkingDirectory=/var/lib/kube-proxy
ExecStart=/opt/kubernetes/bin/kube-proxy \
--bind-address=192.168.43.22 \
--hostname-override=192.168.43.22 \
--kubeconfig=/opt/kubernetes/cfg/kube-proxy.kubeconfig \
--masquerade-all \
--feature-gates=SupportIPVSProxyMode=true \
--proxy-mode=ipvs \
--ipvs-min-sync-period=5s \
--ipvs-sync-period=5s \
--ipvs-scheduler=rr \
--logtostderr=true \
--v=2 \
--logtostderr=false \
--log-dir=/opt/kubernetes/log
Restart=on-failure
RestartSec=5
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
[root@linux-node3 ssl]# vim /usr/lib/systemd/system/kube-proxy.service
[Unit]
Description=Kubernetes Kube-Proxy Server
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
After=network.target
[Service]
WorkingDirectory=/var/lib/kube-proxy
ExecStart=/opt/kubernetes/bin/kube-proxy \
--bind-address=192.168.43.23 \
--hostname-override=192.168.43.23 \
--kubeconfig=/opt/kubernetes/cfg/kube-proxy.kubeconfig \
--masquerade-all \
--feature-gates=SupportIPVSProxyMode=true \
--proxy-mode=ipvs \
--ipvs-min-sync-period=5s \
--ipvs-sync-period=5s \
--ipvs-scheduler=rr \
--logtostderr=true \
--v=2 \
--logtostderr=false \
--log-dir=/opt/kubernetes/log
Restart=on-failure
RestartSec=5
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
8、启动kubernetes proxy
[root@linux-node2 ssl]# systemctl daemon-reload
[root@linux-node2 ssl]# systemctl enable kube-proxy
[root@linux-node2 ssl]# systemctl start kube-proxy
[root@linux-node3 ssl]# systemctl daemon-reload
[root@linux-node3 ssl]# systemctl enable kube-proxy
[root@linux-node3 ssl]# systemctl start kube-proxy
9、查看服务状态查看kube-proxy服务状态
[root@linux-node2 ssl]# systemctl status kube-proxy
[root@linux-node2 ssl]# ipvsadm -L -n
[root@linux-node3 ssl]# systemctl status kube-proxy
[root@linux-node3 ssl]# ipvsadm -L -n