标签：run journal 文件的 metrics system ref direct ted 指定
继续前一章的部署。
部署 kube-proxy 组件
14.1 下载和分发二进制文件，参考 第三章
分发到各节点
source /opt/k8s/bin/environment.sh for node_name in ${NODE_NAMES[@]} do echo ">>> ${node_name}" scp k8s/v1.11.2/server/kubernetes/server/bin/{kube-proxy,kubelet} k8s@${node_name}:/opt/k8s/bin/ ssh k8s@${node_name} "chmod 755 /opt/k8s/bin/{kube-proxy,kubelet}" done
14.2 安装依赖包，参考 第十一章
14.3 创建 kube-proxy 证书
cd /opt/k8s/cert
cat > kube-proxy-csr.json <<EOF { "CN": "system:kube-proxy", "key": { "algo": "rsa", "size": 2048 }, "names": [ { "C": "CN", "ST": "BeiJing", "L": "BeiJing", "O": "k8s", "OU": "4Paradigm" } ] } EOF
生成证书和私钥:
cfssl gencert -ca=/etc/kubernetes/cert/ca.pem -ca-key=/etc/kubernetes/cert/ca-key.pem -config=/etc/kubernetes/cert/ca-config.json -profile=kubernetes kube-proxy-csr.json | cfssljson -bare kube-proxy
创建和分发 kubeconfig 文件
source /opt/k8s/bin/environment.sh kubectl config set-cluster kubernetes --certificate-authority=/etc/kubernetes/cert/ca.pem --embed-certs=true --server=${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 config use-context default --kubeconfig=kube-proxy.kubeconfig
分发 kubeconfig 文件
source /opt/k8s/bin/environment.sh for node_name in ${NODE_NAMES[@]} do echo ">>> ${node_name}" scp kube-proxy.kubeconfig k8s@${node_name}:/etc/kubernetes/ done
14.3 创建 kube-proxy 配置文件
从 v1.10开始，kube-proxy 部分参数可以在配置文件中配置，可以使用 --write-config-to 选项生成该配置文件，或者参考 kubeproxyconfig 的类型定义源文件：
https://github.com/kubernetes/kubernetes/blob/master/pkg/proxy/apis/kubeproxyconfig/types.go
创建 kube-proxy config 文件模板：
cat >kube-proxy.config.yaml.template <<EOF apiVersion: kubeproxy.config.k8s.io/v1alpha1 bindAddress: ##NODE_IP## clientConnection: kubeconfig: /etc/kubernetes/kube-proxy.kubeconfig clusterCIDR: ${CLUSTER_CIDR} healthzBindAddress: ##NODE_IP##:10256 hostnameOverride: ##NODE_NAME## kind: KubeProxyConfiguration metricsBindAddress: ##NODE_IP##:10249 mode: "ipvs" EOF
为各节点创建和分发 kube-proxy 配置文件
source /opt/k8s/bin/environment.sh for (( i=0; i < 4; i++ )) do echo ">>> ${NODE_NAMES[i]}" sed -e "s/##NODE_NAME##/${NODE_NAMES[i]}/" -e "s/##NODE_IP##/${NODE_IPS[i]}/" kube-proxy.config.yaml.template > kube-proxy-${NODE_NAMES[i]}.config.yaml scp kube-proxy-${NODE_NAMES[i]}.config.yaml root@${NODE_NAMES[i]}:/etc/kubernetes/kube-proxy.config.yaml done
替换后的 kube-proxy.config.yaml如下
[root@k8s-n2 kubernetes]# cat /etc/kubernetes/kube-proxy.config.yaml apiVersion: kubeproxy.config.k8s.io/v1alpha1 bindAddress: 192.168.56.31 clientConnection: kubeconfig: /etc/kubernetes/kube-proxy.kubeconfig clusterCIDR: 172.30.0.0/16 healthzBindAddress: 192.168.56.31:10256 hostnameOverride: k8s-n2 kind: KubeProxyConfiguration metricsBindAddress: 192.168.56.31:10249 mode: "ipvs"
14.4 创建和分发 kube-proxy systemd unit 文件
source /opt/k8s/bin/environment.sh cat > kube-proxy.service <<EOF [Unit] Description=Kubernetes Kube-Proxy Server Documentation=https://github.com/GoogleCloudPlatform/kubernetes After=network.target [Service] WorkingDirectory=/var/lib/kube-proxy ExecStart=/opt/k8s/bin/kube-proxy \ --config=/etc/kubernetes/kube-proxy.config.yaml \ --alsologtostderr=true \ --logtostderr=false \ --log-dir=/var/log/kubernetes \ --v=2 Restart=on-failure RestartSec=5 LimitNOFILE=65536 [Install] WantedBy=multi-user.target EOF
分发 kube-proxy systemd unit 文件
source /opt/k8s/bin/environment.sh for node_name in ${NODE_NAMES[@]} do echo ">>> ${node_name}" scp kube-proxy.service root@${node_name}:/etc/systemd/system/ done
14.5 启动 kube-proxy 服务
source /opt/k8s/bin/environment.sh for node_ip in ${NODE_IPS[@]} do echo ">>> ${node_ip}" ssh root@${node_ip} "mkdir -p /var/lib/kube-proxy" ssh root@${node_ip} "mkdir -p /var/log/kubernetes && chown -R k8s /var/log/kubernetes" ssh root@${node_ip} "systemctl daemon-reload && systemctl enable kube-proxy && systemctl restart kube-proxy" done
检查启动结果：
source /opt/k8s/bin/environment.sh for node_ip in ${NODE_IPS[@]} do echo ">>> ${node_ip}" ssh k8s@${node_ip} "systemctl status kube-proxy|grep Active" done
查看监听端口和 metrics
[k8s@k8s-m1 template]$ sudo netstat -lnpt|grep kube-prox tcp 0 0 192.168.56.20:10249 0.0.0.0:* LISTEN 729/kube-proxy tcp 0 0 192.168.56.20:10256 0.0.0.0:* LISTEN 729/kube-proxy
查看 ipvs 路由规则
[k8s@k8s-m1 template]$ source /opt/k8s/bin/environment.sh [k8s@k8s-m1 template]$ for node_ip in ${NODE_IPS[@]} > do > echo ">>> ${node_ip}" > ssh root@${node_ip} "/usr/sbin/ipvsadm -ln" > done >>> 192.168.56.20 IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP 10.254.0.1:443 rr -> 192.168.56.20:6443 Masq 1 0 0 -> 192.168.56.21:6443 Masq 1 0 0 >>> 192.168.56.21 IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP 10.254.0.1:443 rr -> 192.168.56.20:6443 Masq 1 0 0 -> 192.168.56.21:6443 Masq 1 0 0 >>> 192.168.56.30 IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP 10.254.0.1:443 rr -> 192.168.56.20:6443 Masq 1 0 0 -> 192.168.56.21:6443 Masq 1 0 0 >>> 192.168.56.31 IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP 10.254.0.1:443 rr -> 192.168.56.20:6443 Masq 1 0 0 -> 192.168.56.21:6443 Masq 1 0 0
可以看到，将所有到 kubernetes cluster ip 443 端口的请求都转发到了 kube-apiserver 的 6443 端口
二进制安装kubernetes v1.11.2 （第十四章 kube-proxy部署）
标签：run journal 文件的 metrics system ref direct ted 指定
原文地址：https://www.cnblogs.com/aast/p/9917574.html
