物联网架构成长之路(45)-容器管理平台Rancher

0.前言

　　按照上一篇博客，我已经把需要下载的rancher docker 依赖镜像下载上传到Harbor了。

1. 安装

　　执行如下，实现一键安装

 docker run -d --restart=unless-stopped -p : -p : -v /opt/rancher:/var/lib/rancher/ rancher/rancher:stable

　　具体看这个文档 https://rancher.com/docs/rancher/v2.x/en/
　　后续所有练习都是基于本地仓库执行，方便后面测试

 docker pull 172.16.23.203:/rancher/rancher:v2.3.2
 docker tag 172.16.23.203:/rancher/rancher:v2.3.2 rancher/rancher:v2.3.2
 docker rmi 172.16.23.203:/rancher/rancher:v2.3.2
 docker run -d --restart=unless-stopped -p : -p : -v /opt/rancher:/var/lib/rancher/ rancher/rancher:v2.3.2

　　执行以下命令，然后等一段时间，运行rancher还需要初始化1-2分钟。然后就可以访问了

 apt-get install -y docker.io
 wget http://172.16.23.203/res/docker-compose
 chmod +x docker-compose
 cp docker-compose /usr/local/bin

 cat >/etc/docker/daemon.json <<-EOF
 {
     "registry-mirrors": ["https://docker.mirrors.ustc.edu.cn/"],
     "insecure-registries": ["http://172.16.23.203:20000"]
 }
 EOF
 systemctl daemon-reload
 systemctl restart docker

 docker login 172.16.23.203: -u admin -p 

 #install rancher
 docker pull 172.16.23.203:/rancher/rancher-agent:v2.3.2
 docker tag 172.16.23.203:/rancher/rancher-agent:v2.3.2 rancher/rancher-agent:v2.3.2
 docker rmi 172.16.23.203:/rancher/rancher-agent:v2.3.2

 docker pull 172.16.23.203:/rancher/rancher:v2.3.2
 docker tag 172.16.23.203:/rancher/rancher:v2.3.2 rancher/rancher:v2.3.2
 docker rmi 172.16.23.203:/rancher/rancher:v2.3.2
 docker run -d --restart=unless-stopped -p : -p : -v /opt/rancher:/var/lib/rancher/ rancher/rancher:v2.3.2

　　创建一个集群 Add Cluster ， 选择Custom 本地节点方式

　　填写Cluster Name后，就下一步。在 Node Options 角色部分，就全选。其中Worker角色，表示可以在该节点安装Pod。其他两个就是一些集群的配置信息。

　　用VMs创建一台新的虚拟机，执行以下脚本（注，每个人的脚本都有所不一样）

 apt-get install -y docker.io
 wget http://172.16.23.203/res/docker-compose
 chmod +x docker-compose
 cp docker-compose /usr/local/bin

 cat >/etc/docker/daemon.json <<-EOF
 {
   "registry-mirrors": ["https://docker.mirrors.ustc.edu.cn/"],
   "insecure-registries": ["http://172.16.23.203:20000"]
 }
 EOF
 systemctl daemon-reload
 systemctl restart docker

 docker login 172.16.23.203: -u admin -p 

 #install rancher
 #docker pull 172.16.23.203:/rancher/rancher-agent:v2.3.2
 #docker tag 172.16.23.203:/rancher/rancher-agent:v2.3.2 rancher/rancher-agent:v2.3.2
 #docker rmi 172.16.23.203:/rancher/rancher-agent:v2.3.2
 #docker pull 172.16.23.203:/rancher/rancher:v2.3.2
 #docker tag 172.16.23.203:/rancher/rancher:v2.3.2 rancher/rancher:v2.3.2
 #docker rmi 172.16.23.203:/rancher/rancher:v2.3.2
 #docker run -d --restart=unless-stopped -p : -p : -v /opt/rancher:/var/lib/rancher/ rancher/rancher:v2.3.2

 #install worker node
 docker pull 172.16.23.203:/rancher/rancher-agent:v2.3.2
 docker pull 172.16.23.203:/rancher/hyperkube:v1.15.5-rancher1
 docker pull 172.16.23.203:/rancher/rke-tools:v0.1.50
 docker pull 172.16.23.203:/rancher/calico-node:v3.7.4
 docker pull 172.16.23.203:/rancher/calico-cni:v3.7.4
 docker pull 172.16.23.203:/rancher/coreos-flannel:v0.11.0
 docker pull 172.16.23.203:/rancher/coreos-etcd:v3.3.10-rancher1
 docker pull 172.16.23.203:/rancher/pause:3.1
 docker pull 172.16.23.203:/rancher/metrics-server:v0.3.3
 docker pull 172.16.23.203:/rancher/coredns-coredns:1.3.
 docker pull 172.16.23.203:/rancher/cluster-proportional-autoscaler:1.3.
 docker pull 172.16.23.203:/rancher/nginx-ingress-controller-defaultbackend:1.5-rancher1
 docker tag 172.16.23.203:/rancher/rancher-agent:v2.3.2 rancher/rancher-agent:v2.3.2
 docker tag 172.16.23.203:/rancher/hyperkube:v1.15.5-rancher1 rancher/hyperkube:v1.15.5-rancher1
 docker tag 172.16.23.203:/rancher/rke-tools:v0.1.50 rancher/rke-tools:v0.1.50
 docker tag 172.16.23.203:/rancher/calico-node:v3.7.4 rancher/calico-node:v3.7.4
 docker tag 172.16.23.203:/rancher/calico-cni:v3.7.4 rancher/calico-cni:v3.7.4
 docker tag 172.16.23.203:/rancher/coreos-flannel:v0.11.0 rancher/coreos-flannel:v0.11.0
 docker tag 172.16.23.203:/rancher/coreos-etcd:v3.3.10-rancher1 rancher/coreos-etcd:v3.3.10-rancher1
 docker tag 172.16.23.203:/rancher/pause:3.1 rancher/pause:3.1
 docker tag 172.16.23.203:/rancher/metrics-server:v0.3.3 rancher/metrics-server:v0.3.3
 docker tag 172.16.23.203:/rancher/coredns-coredns:1.3. rancher/coredns-coredns:1.3.
 docker tag 172.16.23.203:/rancher/cluster-proportional-autoscaler:1.3. rancher/cluster-proportional-autoscaler:1.3.
 docker tag 172.16.23.203:/rancher/nginx-ingress-controller-defaultbackend:1.5-rancher1 rancher/nginx-ingress-controller-defaultbackend:1.5-rancher1
 docker rmi 172.16.23.203:/rancher/rancher-agent:v2.3.2
 docker rmi 172.16.23.203:/rancher/hyperkube:v1.15.5-rancher1
 docker rmi 172.16.23.203:/rancher/rke-tools:v0.1.50
 docker rmi 172.16.23.203:/rancher/calico-node:v3.7.4
 docker rmi 172.16.23.203:/rancher/calico-cni:v3.7.4
 docker rmi 172.16.23.203:/rancher/coreos-flannel:v0.11.0
 docker rmi 172.16.23.203:/rancher/coreos-etcd:v3.3.10-rancher1
 docker rmi 172.16.23.203:/rancher/pause:3.1
 docker rmi 172.16.23.203:/rancher/metrics-server:v0.3.3
 docker rmi 172.16.23.203:/rancher/coredns-coredns:1.3.
 docker rmi 172.16.23.203:/rancher/cluster-proportional-autoscaler:1.3.
 docker rmi 172.16.23.203:/rancher/nginx-ingress-controller-defaultbackend:1.5-rancher1

 sudo docker run -d --privileged --restart=unless-stopped --net=host -v /etc/kubernetes:/etc/kubernetes -v /var/run:/var/run rancher/rancher-agent:v2.3.2 --server https://172.16.23.103 --token xvrvrg8s6shxg6bq2qc6v42fdmjm9dsbdzbff7hnfpp5mwtlfblmsg --ca-checksum 2cb3135fa308dcbd6bf6a73632072a05c03a1a8b42afc53acc594d8b440a159b --etcd --controlplane --worker

　　在Worker节点执行以上命令，将在Node节点部署rancher-agent，这个过程需要等待一段时间，如果是从hub.docker.com上下载的，或者aliyuncs.com镜像下载的，也是需要花一段时间，因为下载的东西很大。
　　理论执行上面一句命令就可以完成节点Node的部署。但是实时没有那么简单，有时候会因为网络问题，卡住不动。我一直以为是自己的原因。还有，下载的依赖，可能有1-2G，下载也是慢，所以要查查资料，看怎么使用私有repo。哎，都是泪。
　　还有就是之前宿主主机系统安装过etcd，这个需要卸载掉。

　　同理这样的机器安装多几台，这个过程完全自动化，还是比较花时间安装和服务发现的。吃个饭回来，就基本好了。

2.说明

　　前面博客有说到安装Kubernetes 花了将近3天，真从入门安装到放弃。现在试一下用RKE(Rancher Kubernetes Engine) 安装k8s
　　Rancher 所需的文件可以到这里下载 https://www.rancher.cn/docs/rancher/v2.x/cn/install-prepare/download/
　　简单入门: https://www.rancher.cn/docs/rancher/v2.x/cn/overview/quick-start-guide/

3. 附录，JS生成Bash脚本

 var list = ["rancher/rancher-agent:v2.3.2",
     "rancher/hyperkube:v1.15.5-rancher1",
     "rancher/rke-tools:v0.1.50",
     "rancher/calico-node:v3.7.4",
     "rancher/calico-cni:v3.7.4",
     "rancher/coreos-flannel:v0.11.0",
     "rancher/coreos-etcd:v3.3.10-rancher1",
     "rancher/pause:3.1",
     "rancher/metrics-server:v0.3.3",
     "rancher/coredns-coredns:1.3.1",
     "rancher/cluster-proportional-autoscaler:1.3.0",
     "rancher/nginx-ingress-controller:nginx-0.25.1-rancher1",
     "rancher/kube-api-auth:v0.1.3",
     "rancher/coredns-coredns:1.3.1",
     "rancher/cluster-proportional-autoscaler:1.3.0",
     "rancher/nginx-ingress-controller-defaultbackend:1.5-rancher1"
 ];

 var url = "172.16.23.203:20000/";
 var log = "";
 for(var i=; i<list.length; i++){
   log += "docker tag " + list[i] + " " + url + list[i] +"\n"
 }
 console.log(log)
 log = "";
 for(var i=; i<list.length; i++){
   log += "docker push " + url + list[i] +"\n"
 }
 console.log(log)
 log = "";
 for(var i=; i<list.length; i++){
   log += "docker rmi " + url + list[i] + "\n"
 }
 console.log(log)
 log = "";
 for(var i=; i<list.length; i++){
   log += "docker pull " + url + list[i] + "\n"
 }
 console.log(log);
 log = "";
 for(var i=; i<list.length; i++){
   log += "docker tag " + url + list[i] + " " + list[i] + "\n"
 }
 console.log(log);

本文地址: https://www.cnblogs.com/wunaozai/p/11822386.html

本系列目录：https://www.cnblogs.com/wunaozai/p/8067577.html

个人主页：https://www.wunaozai.com/