标签：unit count git dea server live resource 步骤 创建
master端下载kubernetes组件：
wget https://storage.googleapis.com/kubernetes-release/release/v1.9.2/kubernetes-server-linux-amd64.tar.gz
node端下工kubernetes node组件：
wget https://dl.k8s.io/v1.9.2/kubernetes-node-linux-amd64.tar.gz
master操作：
把二制文件移动到bin下
[root@master bin]# pwd /root/master_pkg/kubernetes/server/bin [root@master bin]# cp kube-controller-manager kube-scheduler kube-apiserver /opt/kubernetes/bin/ [root@master bin]# chmod +x /opt/kubernetes/bin/*
添加apiserver.sh脚本
#!/bin/bash MASTER_ADDRESS=${1:-"192.168.1.195"} ETCD_SERVERS=${2:-"http://127.0.0.1:2379"} cat <<EOF >/opt/kubernetes/cfg/kube-apiserver KUBE_APISERVER_OPTS="--logtostderr=true \\ --v=4 \--etcd-servers=${ETCD_SERVERS} \--insecure-bind-address=127.0.0.1 \--bind-address=${MASTER_ADDRESS} \--insecure-port=8080 \--secure-port=6443 \--advertise-address=${MASTER_ADDRESS} \--allow-privileged=true \--service-cluster-ip-range=10.10.10.0/24 \--admission-control=NamespaceLifecycle,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota,NodeRestriction --authorization-mode=RBAC,Node \--kubelet-https=true \--enable-bootstrap-token-auth \--token-auth-file=/opt/kubernetes/cfg/token.csv \--service-node-port-range=30000-50000 \--tls-cert-file=/opt/kubernetes/ssl/server.pem \--tls-private-key-file=/opt/kubernetes/ssl/server-key.pem \--client-ca-file=/opt/kubernetes/ssl/ca.pem \--service-account-key-file=/opt/kubernetes/ssl/ca-key.pem \--etcd-cafile=/opt/kubernetes/ssl/ca.pem \--etcd-certfile=/opt/kubernetes/ssl/server.pem \--etcd-keyfile=/opt/kubernetes/ssl/server-key.pem" EOF cat <<EOF >/usr/lib/systemd/system/kube-apiserver.service [Unit] Description=Kubernetes API Server Documentation=https://github.com/kubernetes/kubernetes [Service] EnvironmentFile=-/opt/kubernetes/cfg/kube-apiserver ExecStart=/opt/kubernetes/bin/kube-apiserver \$KUBE_APISERVER_OPTS Restart=on-failure [Install] WantedBy=multi-user.target EOF systemctl daemon-reload systemctl enable kube-apiserver systemctl restart kube-apiserver
执行apiserver.sh脚本：
[root@master bin]# ./apiserver.sh 192.168.1.101 https://192.168.1.101:2379,https://192.168.1.102:2379,https://192.168.1.103:2379 Created symlink from /etc/systemd/system/multi-user.target.wants/kube-apiserver.service to /usr/lib/systemd/system/kube-apiserver.service.
将token.csv放到cfg目录下
cp /opt/kubernetes/ssl/token.csv /opt/kubernetes/cfg/
启动kube-apiserver
[root@master bin]# systemctl start kube-apiserver
添加controller-manager.sh控制器脚本
#!/bin/bash MASTER_ADDRESS=${1:-"127.0.0.1"} cat <<EOF >/opt/kubernetes/cfg/kube-controller-manager KUBE_CONTROLLER_MANAGER_OPTS="--logtostderr=true \\ --v=4 \--master=${MASTER_ADDRESS}:8080 \--leader-elect=true \--address=127.0.0.1 \--service-cluster-ip-range=10.10.10.0/24 \--cluster-name=kubernetes \--cluster-signing-cert-file=/opt/kubernetes/ssl/ca.pem \--cluster-signing-key-file=/opt/kubernetes/ssl/ca-key.pem \--service-account-private-key-file=/opt/kubernetes/ssl/ca-key.pem \--root-ca-file=/opt/kubernetes/ssl/ca.pem" EOF cat <<EOF >/usr/lib/systemd/system/kube-controller-manager.service [Unit] Description=Kubernetes Controller Manager Documentation=https://github.com/kubernetes/kubernetes [Service] EnvironmentFile=-/opt/kubernetes/cfg/kube-controller-manager ExecStart=/opt/kubernetes/bin/kube-controller-manager \$KUBE_CONTROLLER_MANAGER_OPTS Restart=on-failure [Install] WantedBy=multi-user.target EOF systemctl daemon-reload systemctl enable kube-controller-manager systemctl restart kube-controller-manager
执行脚本：
[root@master bin]# ./controller-manager.sh 127.0.0.1
查看服务是否启动
[root@master bin]# ps -ef | grep controller-manager root 16464 1 10 14:34 ? 00:00:01 /opt/kubernetes/bin/kube-controller-manager --logtostderr=true --v=4 --master=127.0.0.1:8080 --leader-elect=true --address=127.0.0.1 --service-cluster-ip-range=10.10.10.0/24 --cluster-name=kubernetes --cluster-signing-cert-file=/opt/kubernetes/ssl/ca.pem --cluster-signing-key-file=/opt/kubernetes/ssl/ca-key.pem --service-account-private-key-file=/opt/kubernetes/ssl/ca-key.pem --root-ca-file=/opt/kubernetes/ssl/ca.pem
添加scheduler.sh脚本
#!/bin/bash MASTER_ADDRESS=${1:-"127.0.0.1"} cat <<EOF >/opt/kubernetes/cfg/kube-scheduler KUBE_SCHEDULER_OPTS="--logtostderr=true \\ --v=4 \--master=${MASTER_ADDRESS}:8080 \--leader-elect" EOF cat <<EOF >/usr/lib/systemd/system/kube-scheduler.service [Unit] Description=Kubernetes Scheduler Documentation=https://github.com/kubernetes/kubernetes [Service] EnvironmentFile=-/opt/kubernetes/cfg/kube-scheduler ExecStart=/opt/kubernetes/bin/kube-scheduler \$KUBE_SCHEDULER_OPTS Restart=on-failure [Install] WantedBy=multi-user.target EOF systemctl daemon-reload systemctl enable kube-scheduler systemctl restart kube-scheduler
执行脚本
[root@master bin]# ./scheduler.sh 127.0.0.1
查看服务是否启动
[root@master bin]# ps -ef | grep scheduler root 16531 1 4 14:37 ? 00:00:00 /opt/kubernetes/bin/kube-scheduler --logtostderr=true --v=4 --master=127.0.0.1:8080 --leader-elect
查看节点状态
[root@master bin]# kubectl get cs NAME STATUS MESSAGE ERROR controller-manager Healthy ok scheduler Healthy ok etcd-0 Healthy {"health": "true"} etcd-2 Healthy {"health": "true"} etcd-1 Healthy {"health": "true"}
将master节点生成的kubeconfig文件传到两个节点的cfg目录下
/opt/kubernetes/ssl [root@master ssl]# scp *kubeconfig root@192.168.1.102:/opt/kubernetes/cfg/ [root@master ssl]# scp *kubeconfig root@192.168.1.103:/opt/kubernetes/cfg/
node1节点操作：
解压kubernetes-node-linux-amd64.tar.gz 包
[root@node1 node_pkg]# tar xvf kubernetes-node-linux-amd64.tar.gz
将解压出来的二制移到bin下
[root@node1 bin]# cp kubelet kube-proxy /opt/kubernetes/bin/
[root@node1 bin]# chmod +x /opt/kubernetes/bin/*
添加kubelet.sh脚本
#!/bin/bash NODE_ADDRESS=${1:-"192.168.1.196"} DNS_SERVER_IP=${2:-"10.10.10.2"} cat <<EOF >/opt/kubernetes/cfg/kubelet KUBELET_OPTS="--logtostderr=true \\ --v=4 \--address=${NODE_ADDRESS} \--hostname-override=${NODE_ADDRESS} \--kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig \--experimental-bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig \--cert-dir=/opt/kubernetes/ssl \--allow-privileged=true \--cluster-dns=${DNS_SERVER_IP} \--cluster-domain=cluster.local \--fail-swap-on=false \--pod-infra-container-image=registry.cn-hangzhou.aliyuncs.com/google-containers/pause-amd64:3.0" EOF cat <<EOF >/usr/lib/systemd/system/kubelet.service [Unit] Description=Kubernetes Kubelet After=docker.service Requires=docker.service [Service] EnvironmentFile=-/opt/kubernetes/cfg/kubelet ExecStart=/opt/kubernetes/bin/kubelet \$KUBELET_OPTS Restart=on-failure KillMode=process [Install] WantedBy=multi-user.target EOF systemctl daemon-reload systemctl enable kubelet systemctl restart kubelet
执行脚本
[root@node1 bin]# ./kubelet.sh 192.168.0.102 10.10.10.2 Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /usr/lib/systemd/system/kubelet.service. 备注：192.168.0.102为你当前节点的IP 10.10.10.2为你的DNS地址
查看kubelete是否启动
发现有错误日志,创建证权限拒绝
error: failed to run Kubelet: cannot create certificate signing request: certificatesigningrequests.certificates.k8s.io is forbidden: User "kubelet-bootstrap" cannot create certificatesigningrequests.certificates.k8s.io at the cluster scope: clusterrole.rbac.authorization.k8s.io "system:node-bootstrap" not found
解决方法
在master端创建权限分配角色
[root@master ssl]# kubectl create clusterrolebinding kubelet-bootstrap --clusterrole=system:node-bootstrapper --user=kubelet-bootstrap
node节点再次启动kubelet
创建proxy.sh脚本
#!/bin/bash NODE_ADDRESS=${1:-"192.168.1.200"} cat <<EOF >/opt/kubernetes/cfg/kube-proxy KUBE_PROXY_OPTS="--logtostderr=true \ --v=4 --hostname-override=${NODE_ADDRESS} --kubeconfig=/opt/kubernetes/cfg/kube-proxy.kubeconfig" EOF cat <<EOF >/usr/lib/systemd/system/kube-proxy.service [Unit] Description=Kubernetes Proxy After=network.target [Service] EnvironmentFile=-/opt/kubernetes/cfg/kube-proxy ExecStart=/opt/kubernetes/bin/kube-proxy \$KUBE_PROXY_OPTS Restart=on-failure [Install] WantedBy=multi-user.target EOF systemctl daemon-reload systemctl enable kube-proxy systemctl restart kube-proxy
执行脚本
[root@node1 ssl]# ./proxy.sh 192.168.1.102 备注：192.168.1.102是当前节点的地址
在master查看节点请求信息：
[root@master ssl]# kubectl get csr NAME AGE REQUESTOR CONDITION node-csr-iVbj9CKPaWhh7VAQfqK16Xz9in4-Byb_XZaDJLz3zfw 11m kubelet-bootstrap Pending
允许自签证书请求连接
[root@master ssl]# kubectl certificate approve node-csr-iVbj9CKPaWhh7VAQfqK16Xz9in4-Byb_XZaDJLz3zfw
再次查看连接：
[root@master ssl]# kubectl get csr NAME AGE REQUESTOR CONDITION node-csr-iVbj9CKPaWhh7VAQfqK16Xz9in4-Byb_XZaDJLz3zfw 14m kubelet-bootstrap Approved,Issued
查看Node为准备状态
[root@master ssl]# kubectl get node NAME STATUS ROLES AGE VERSION 192.168.1.102 Ready <none> 1m v1.9.2
node2节点操作：
把Node1节点的文个拷到node2节点，或者重复node1节点步骤
[root@node1 ssl]# scp -r /opt/kubernetes/bin root@192.168.1.103:/opt/kubernetes [root@node1 ssl]# scp -r /opt/kubernetes/cfg root@192.168.1.103:/opt/kubernetes
[root@node1 ssl]# scp /usr/lib/systemd/system/kubelet.service root@192.168.1.103:/usr/lib/systemd/system/
[root@node1 ssl]# scp /usr/lib/systemd/system/kube-proxy.service root@192.168.1.103:/usr/lib/systemd/system/
修改node2节点cfg下kubelet配置文件的ip改为当前节点IP
KUBELET_OPTS="--logtostderr=true \ --v=4 --address=192.168.1.103 --hostname-override=192.168.1.103 --kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig --experimental-bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig --cert-dir=/opt/kubernetes/ssl --allow-privileged=true --cluster-dns=10.10.10.2 --cluster-domain=cluster.local --fail-swap-on=false --pod-infra-container-image=registry.cn-hangzhou.aliyuncs.com/google-containers/pause-amd64:3.0"
修改node2节点cfg下kube-proxy配置文件的ip改为当前节点IP
KUBE_PROXY_OPTS="--logtostderr=true --v=4 --hostname-override=192.168.1.103 --kubeconfig=/opt/kubernetes/cfg/kube-proxy.kubeconfig"
启动服务
[root@node2 cfg]# systemctl start kubelet
[root@node2 cfg]# systemctl start kube-proxy
master节点查看是否有请求
[root@master ssl]# kubectl get csr NAME AGE REQUESTOR CONDITION node-csr-OPWss8__QdJqP6QmudtkaVQWeDh278BxzP35hdeAkZI 17s kubelet-bootstrap Pending node-csr-iVbj9CKPaWhh7VAQfqK16Xz9in4-Byb_XZaDJLz3zfw 28m kubelet-bootstrap Approved,Issued
允许自签证书连接
[root@master ssl]# kubectl certificate approve node-csr-OPWss8__QdJqP6QmudtkaVQWeDh278BxzP35hdeAkZI
查看节点
[root@master ssl]# kubectl get node NAME STATUS ROLES AGE VERSION 192.168.1.102 Ready <none> 15m v1.9.2 192.168.1.103 Ready <none> 12s v1.9.2
创建nginx实例：
[root@master ssl]# kubectl run nginx --image=nginx --replicas=3
查看Pod
[root@master ssl]# kubectl get pod NAME READY STATUS RESTARTS AGE nginx-8586cf59-7r4zq 0/1 ContainerCreating 0 10s nginx-8586cf59-9wpwr 0/1 ContainerCreating 0 10s nginx-8586cf59-h2n5h 0/1 ContainerCreating 0 10s
查看资源对象
[root@master ssl]# kubectl get all NAME READY STATUS RESTARTS AGE pod/nginx-8586cf59-7r4zq 0/1 ContainerCreating 0 1m pod/nginx-8586cf59-9wpwr 0/1 ContainerCreating 0 1m pod/nginx-8586cf59-h2n5h 0/1 ContainerCreating 0 1m NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE service/kubernetes ClusterIP 10.10.10.1 <none> 443/TCP 1h NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE deployment.extensions/nginx 3 3 3 0 1m NAME DESIRED CURRENT READY AGE replicaset.extensions/nginx-8586cf59 3 3 0 1m NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE deployment.apps/nginx 3 3 3 0 1m NAME DESIRED CURRENT READY AGE replicaset.apps/nginx-8586cf59 3 3 0 1m
查看容器运行在哪个节点
[root@master ssl]# kubectl get pod -o wide NAME READY STATUS RESTARTS AGE IP NODE nginx-8586cf59-7r4zq 0/1 ImagePullBackOff 0 7m 172.17.47.2 192.168.1.103 nginx-8586cf59-9wpwr 1/1 Running 0 7m 172.17.47.3 192.168.1.103 nginx-8586cf59-h2n5h 1/1 Running 0 7m 172.17.45.2 192.168.1.102
对外发布一个服务
[root@master ssl]# kubectl expose deployment nginx --port=88 --target-port=80 --type=NodePort
[root@master ssl]# kubectl get svc NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes ClusterIP 10.10.10.1 <none> 443/TCP 2h nginx NodePort 10.10.10.130 <none> 88:34986/TCP 13s
备注:88端口是提供node节点访问
34986为随机端口，外问该问
在node节点访问88这个端口
[root@node1 ssl]# curl -I 10.10.10.130:88 HTTP/1.1 200 OK Server: nginx/1.15.2 Date: Wed, 08 Aug 2018 08:54:09 GMT Content-Type: text/html Content-Length: 612 Last-Modified: Tue, 24 Jul 2018 13:02:29 GMT Connection: keep-alive ETag: "5b572365-264" Accept-Ranges: bytes
标签：unit count git dea server live resource 步骤 创建
原文地址：https://www.cnblogs.com/zhangzihong/p/9443910.html
