# k8s-install-scripts **Repository Path**: jasonfanxuefei/k8s-install-scripts ## Basic Information - **Project Name**: k8s-install-scripts - **Description**: kubernetes install scripts,that includes etcd、kubernetes、flannel、docker,and there are many yaml files here,for example the kubernetes addones,redis,rabbitmq,mongo,traefik,ingress-nginx,cpehfs and so on. - **Primary Language**: Shell - **License**: Not specified - **Default Branch**: master - **Homepage**: None - **GVP Project**: No ## Statistics - **Stars**: 0 - **Forks**: 1 - **Created**: 2019-12-15 - **Last Updated**: 2020-12-19 ## Categories & Tags **Categories**: Uncategorized **Tags**: None ## README # 1 环境 至少3台centos 7虚机 | 虚机名称 | IP | | ------------- |:-------------:| | node01 | 172.16.120.151| | node02 | 172.16.120.152| | node03 | 172.16.120.153| # 2 安装etcd etcd.sh实现关闭selinux和firewall,下载v3.2.4版本的etcd,并进行安装,同时将etcd添加到环境变量。 在node01节点执行: ```bash sh etcd.sh "node01" "172.16.120.151" "node01=http://172.16.120.151:2380,node02=http://172.16.120.152:2380,node03=http://172.16.120.153:2380" ``` 在node02节点执行: ```bash sh etcd.sh "node02" "172.16.120.152" "node01=http://172.16.120.151:2380,node02=http://172.16.120.152:2380,node03=http://172.16.120.153:2380" ``` 在node03节点执行: ```bash sh etcd.sh "node03" "172.16.120.153" "node01=http://172.16.120.151:2380,node02=http://172.16.120.152:2380,node03=http://172.16.120.153:2380" ``` - 第1个参数是etcd当前节点名称ETCD_NAME - 第2个参数是etcd当前节点IP地址ETCD_LISTEN_IP - 第3个参数是etcd集群地址ETCD_INITIAL_CLUSTER >注意:如果etcd下载较慢,可以将etcd事先下载好,放到etcd.sh所在目录下。etcd下载地址https://github.com/coreos/etcd/releases/download/v3.2.4/etcd-v3.2.4-linux-amd64.tar.gz 安装验证: ```bash etcdctl member list etcdctl cluster-health ``` 如果etcdctl命令无法使用,执行下面的命令,使~/.bash_profile生效 ```bash source ~/.bash_profile ``` # 3 安装kubernetes master master/kube-master.sh实现关闭selinux和firewall,下载v1.6.7版本的kubernetes,并进行安装,生成apiserver、controller manager、kube-scheduler服务证书,并使用kubernetes的TLS。 在node01节点执行: ```bash sh kube-master.sh "172.16.120.151" "k8s-node01" "http://172.16.120.151:2379,http://172.16.120.152:2379,http://172.16.120.153:2379" ``` - 第1个参数MASTER_ADDRESS是master节点的地址 - 第2个参数MASTER_DNS是master的DNS名称 - 第3个参数ETCD_SERVERS是etcd集群地址 - 第4个参数SERVICE_CLUSTER_IP_RANGE是kubernetes分配的集群IP范围,默认值为10.0.0.0/24 - 第5个参数MASTER_CLUSTER_IP是kubernetes指定master的集群IP,默认值为10.0.0.1 安装验证: ```bash # kubectl get componentstatuses NAME STATUS MESSAGE ERROR scheduler Healthy ok controller-manager Healthy ok etcd-0 Healthy {"health": "true"} etcd-2 Healthy {"health": "true"} etcd-1 Healthy {"health": "true"} ``` >注意:如果kubernetes下载较慢,可以将kubernetes事先下载好,放到master/kube-master.sh所在目录下。kubernetes下载地址https://github.com/kubernetes/kubernetes/releases/download/v1.6.7/kubernetes.tar.gz # 4 安装kubernetes node node/kube-node.sh实现关闭selinux和firewall,下载v1.6.7版本的kubernetes,并进行安装,安装服务有flannel、docker、kubelet、kube-proxy,从master节点获取根证书,并生成kubelet、kube-proxy服务证书,使用kubernetes的TLS。 在node02节点执行: ```bash sh kube-node.sh "172.16.120.152" "172.16.120.151" "root" "123456" "http://172.16.120.151:2379,http://172.16.120.152:2379,http://172.16.120.153:2379" ``` 在node03节点执行: ```bash sh kube-node.sh "172.16.120.153" "172.16.120.151" "root" "123456" "http://172.16.120.151:2379,http://172.16.120.152:2379,http://172.16.120.153:2379" ``` - 第1个参数NODE_ADDRESS是node节点IP - 第2个参数MASTER_ADDRESS是master节点IP - 第3个参数MASTER_USER是master节点用户名名 - 第4个参数MASTER_PASSWORD是master节点登录密码 - 第5个参数ETCD_SERVERS是etcd集群地址 - 第6个参数FLANNEL_NET是flannel地址段,默认为172.18.0.0/16 - 第7个参数DOCKER_OPTS是docker参数配置 - 第8个参数KUBELET_POD_INFRA_CONTAINER是kubelet pod的基础镜像名称,默认值为hub.c.163.com/k8s163/pause-amd64:3.0 安装验证: ```bash # kubectl get nodes NAME STATUS AGE VERSION 172.16.120.152 Ready 8h v1.6.7 172.16.120.153 Ready 5h v1.6.7 ``` >注意:如果kubernetes和flannel下载较慢,可以将kubernetes和flannel事先下载好,放到node/kube-node.sh所在目录下。flannel下载地址https://github.com/coreos/flannel/releases/download/v0.7.1/flannel-v0.7.1-linux-amd64.tar.gz 由于在kubernetes中是以Pod而不是docker容器作为管理单元,在kubelet创建Pod时,还通过启动一个名为google_containers/pause的镜像来实现Pod的概念。该镜像存在于谷歌的镜像库http://gcr.io中,需要将其下载并push到私有Docker Registry中去,在本脚步中使用下面配置 --pod_infra_container_image=hub.c.163.com/k8s163/pause-amd64:3.0。 参考: http://tonybai.com/2017/07/20/fix-cannot-access-dashboard-in-k8s-1-6-4/ https://stackoverflow.com/questions/44469277/var-log-kube-apiserver-log-not-work-for-kubernetes1-6 https://github.com/opsnull/follow-me-install-kubernetes-cluster http://www.cnblogs.com/breg/p/5923604.html https://wiki.shileizcc.com/display/KUB/Kubernetes+HA+Cluster+Build#KubernetesHAClusterBuild-配置CA证书和私钥