物聯網架構成長之路(45)-容器管理平台Rancher

0.前言

　　按照上一篇博客，我已經把需要下載的rancher docker 依賴鏡像下載上傳到Harbor了。

1. 安裝

　　執行如下，實現一鍵安裝

docker run -d --restart=unless-stopped -p 80:80 -p 443:443 -v /opt/rancher:/var/lib/rancher/ rancher/rancher:stable

　　具體看這個文檔 https://rancher.com/docs/rancher/v2.x/en/
　　后續所有練習都是基於本地倉庫執行，方便后面測試

docker pull 172.16.23.203:20000/rancher/rancher:v2.3.2
docker tag 172.16.23.203:20000/rancher/rancher:v2.3.2 rancher/rancher:v2.3.2
docker rmi 172.16.23.203:20000/rancher/rancher:v2.3.2
docker run -d --restart=unless-stopped -p 80:80 -p 443:443 -v /opt/rancher:/var/lib/rancher/ rancher/rancher:v2.3.2

 

　　執行以下命令，然后等一段時間，運行rancher還需要初始化1-2分鍾。然后就可以訪問了

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 172.16.23.203:20000 -u admin -p 123456

#install rancher
docker pull 172.16.23.203:20000/rancher/rancher-agent:v2.3.2
docker tag 172.16.23.203:20000/rancher/rancher-agent:v2.3.2 rancher/rancher-agent:v2.3.2
docker rmi 172.16.23.203:20000/rancher/rancher-agent:v2.3.2

docker pull 172.16.23.203:20000/rancher/rancher:v2.3.2
docker tag 172.16.23.203:20000/rancher/rancher:v2.3.2 rancher/rancher:v2.3.2
docker rmi 172.16.23.203:20000/rancher/rancher:v2.3.2
docker run -d --restart=unless-stopped -p 80:80 -p 443:443 -v /opt/rancher:/var/lib/rancher/ rancher/rancher:v2.3.2

　　創建一個集群 Add Cluster ， 選擇Custom 本地節點方式

　　填寫Cluster Name后，就下一步。在 Node Options 角色部分，就全選。其中Worker角色，表示可以在該節點安裝Pod。其他兩個就是一些集群的配置信息。

　　用VMs創建一台新的虛擬機，執行以下腳本（注，每個人的腳本都有所不一樣）

 

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 172.16.23.203:20000 -u admin -p 123456

#install rancher
#docker pull 172.16.23.203:20000/rancher/rancher-agent:v2.3.2
#docker tag 172.16.23.203:20000/rancher/rancher-agent:v2.3.2 rancher/rancher-agent:v2.3.2
#docker rmi 172.16.23.203:20000/rancher/rancher-agent:v2.3.2
#docker pull 172.16.23.203:20000/rancher/rancher:v2.3.2
#docker tag 172.16.23.203:20000/rancher/rancher:v2.3.2 rancher/rancher:v2.3.2
#docker rmi 172.16.23.203:20000/rancher/rancher:v2.3.2
#docker run -d --restart=unless-stopped -p 80:80 -p 443:443 -v /opt/rancher:/var/lib/rancher/ rancher/rancher:v2.3.2

#install worker node
docker pull 172.16.23.203:20000/rancher/rancher-agent:v2.3.2
docker pull 172.16.23.203:20000/rancher/hyperkube:v1.15.5-rancher1
docker pull 172.16.23.203:20000/rancher/rke-tools:v0.1.50
docker pull 172.16.23.203:20000/rancher/calico-node:v3.7.4
docker pull 172.16.23.203:20000/rancher/calico-cni:v3.7.4
docker pull 172.16.23.203:20000/rancher/coreos-flannel:v0.11.0
docker pull 172.16.23.203:20000/rancher/coreos-etcd:v3.3.10-rancher1
docker pull 172.16.23.203:20000/rancher/pause:3.1
docker pull 172.16.23.203:20000/rancher/metrics-server:v0.3.3
docker pull 172.16.23.203:20000/rancher/coredns-coredns:1.3.1
docker pull 172.16.23.203:20000/rancher/cluster-proportional-autoscaler:1.3.0
docker pull 172.16.23.203:20000/rancher/nginx-ingress-controller-defaultbackend:1.5-rancher1
docker tag 172.16.23.203:20000/rancher/rancher-agent:v2.3.2 rancher/rancher-agent:v2.3.2
docker tag 172.16.23.203:20000/rancher/hyperkube:v1.15.5-rancher1 rancher/hyperkube:v1.15.5-rancher1
docker tag 172.16.23.203:20000/rancher/rke-tools:v0.1.50 rancher/rke-tools:v0.1.50
docker tag 172.16.23.203:20000/rancher/calico-node:v3.7.4 rancher/calico-node:v3.7.4
docker tag 172.16.23.203:20000/rancher/calico-cni:v3.7.4 rancher/calico-cni:v3.7.4
docker tag 172.16.23.203:20000/rancher/coreos-flannel:v0.11.0 rancher/coreos-flannel:v0.11.0
docker tag 172.16.23.203:20000/rancher/coreos-etcd:v3.3.10-rancher1 rancher/coreos-etcd:v3.3.10-rancher1
docker tag 172.16.23.203:20000/rancher/pause:3.1 rancher/pause:3.1
docker tag 172.16.23.203:20000/rancher/metrics-server:v0.3.3 rancher/metrics-server:v0.3.3
docker tag 172.16.23.203:20000/rancher/coredns-coredns:1.3.1 rancher/coredns-coredns:1.3.1
docker tag 172.16.23.203:20000/rancher/cluster-proportional-autoscaler:1.3.0 rancher/cluster-proportional-autoscaler:1.3.0
docker tag 172.16.23.203:20000/rancher/nginx-ingress-controller-defaultbackend:1.5-rancher1 rancher/nginx-ingress-controller-defaultbackend:1.5-rancher1
docker rmi 172.16.23.203:20000/rancher/rancher-agent:v2.3.2
docker rmi 172.16.23.203:20000/rancher/hyperkube:v1.15.5-rancher1
docker rmi 172.16.23.203:20000/rancher/rke-tools:v0.1.50
docker rmi 172.16.23.203:20000/rancher/calico-node:v3.7.4
docker rmi 172.16.23.203:20000/rancher/calico-cni:v3.7.4
docker rmi 172.16.23.203:20000/rancher/coreos-flannel:v0.11.0
docker rmi 172.16.23.203:20000/rancher/coreos-etcd:v3.3.10-rancher1
docker rmi 172.16.23.203:20000/rancher/pause:3.1
docker rmi 172.16.23.203:20000/rancher/metrics-server:v0.3.3
docker rmi 172.16.23.203:20000/rancher/coredns-coredns:1.3.1
docker rmi 172.16.23.203:20000/rancher/cluster-proportional-autoscaler:1.3.0
docker rmi 172.16.23.203:20000/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節點執行以上命令，將在Node節點部署rancher-agent，這個過程需要等待一段時間，如果是從hub.docker.com上下載的，或者aliyuncs.com鏡像下載的，也是需要花一段時間，因為下載的東西很大。
　　理論執行上面一句命令就可以完成節點Node的部署。但是實時沒有那么簡單，有時候會因為網絡問題，卡住不動。我一直以為是自己的原因。還有，下載的依賴，可能有1-2G，下載也是慢，所以要查查資料，看怎么使用私有repo。哎，都是淚。
　　還有就是之前宿主主機系統安裝過etcd，這個需要卸載掉。

　　同理這樣的機器安裝多幾台，這個過程完全自動化，還是比較花時間安裝和服務發現的。吃個飯回來，就基本好了。

 

2.說明

　　前面博客有說到安裝Kubernetes 花了將近3天，真從入門安裝到放棄。現在試一下用RKE(Rancher Kubernetes Engine) 安裝k8s
　　Rancher 所需的文件可以到這里下載 https://www.rancher.cn/docs/rancher/v2.x/cn/install-prepare/download/
　　簡單入門: https://www.rancher.cn/docs/rancher/v2.x/cn/overview/quick-start-guide/

 

3. 附錄，JS生成Bash腳本

 

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=0; i<list.length; i++){
  log += "docker tag " + list[i] + " " + url + list[i] +"\n"
}
console.log(log)
log = "";
for(var i=0; i<list.length; i++){
  log += "docker push " + url + list[i] +"\n"
}
console.log(log)
log = "";
for(var i=0; i<list.length; i++){
  log += "docker rmi " + url + list[i] + "\n"
}
console.log(log)
log = "";
for(var i=0; i<list.length; i++){
  log += "docker pull " + url + list[i] + "\n"
}
console.log(log);
log = "";
for(var i=0; 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

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

個人主頁：https://www.wunaozai.com/