部署生產環境高可用KubeSphere

# 本文檔基於CentOS7.6發行版最小化安裝部署
 
# 環境准備：
ip                  hostname        cpu/memory      role
192.168.200.141     LB1             1C2G            LB/VIP:192.168.200.20
192.168.200.142     LB2             1C2G            LB
192.168.200.161     master01-161    4C8G            docker-ce/kk
192.168.200.162     master02-162    4C8G            docker-ce/
192.168.200.163     master03-163    4C8G            docker-ce/
192.168.200.164     worker01-164    8C16G           docker-ce/
192.168.200.165     worker02-165    8C16G           docker-ce/
 
# 實驗環境使用nginx+keepalived做負載均衡高可用，也可使用官方文檔中用的haproxy+keepalived
# LB環境
yum -y install nginx keepalived
yum -y install nginx-all-modules.noarch
 
# nginx配置文件stream段配置
stream {
    log_format proxy '$time_local|$remote_addr|$upstream_addr|$protocol|$status|'
                     '$session_time|$upstream_connect_time|$bytes_sent|$bytes_received|'
                     '$upstream_bytes_sent|$upstream_bytes_received' ;
    upstream api_server {
        least_conn;
        server 192.168.200.161:6443 max_fails=3 fail_timeout=5s;
        server 192.168.200.162:6443 max_fails=3 fail_timeout=5s;
        server 192.168.200.163:6443 max_fails=3 fail_timeout=5s;
    }
    server {
        listen     6443;
        proxy_pass api_server;
        access_log /var/log/nginx/proxy.log proxy;
    }
}

# master環境 
# 安裝依賴
yum -y install conntrack socat
 
# 配置環境變量 ps：不設置默認會從github和google拉取鏡像
export KKZONE=cn
 
# 下載 KubeKey
curl -sfL https://get-kk.kubesphere.io | VERSION=v1.1.1 sh -
chmod +x kk
 
# 生成配置文件
./kk create config --with-kubernetes v1.20.4 --with-kubesphere v3.1.1
 
# 自定義配置文件
vim config-sample.yaml
apiVersion: kubekey.kubesphere.io/v1alpha1
kind: Cluster
metadata:
  name: config-sample
spec:
  hosts:
  - {name: master01-161, address: 192.168.200.161, internalAddress: 192.168.200.161, user: root, password: 123456}
  - {name: master02-162, address: 192.168.200.162, internalAddress: 192.168.200.162, user: root, password: 123456}
  - {name: master03-163, address: 192.168.200.163, internalAddress: 192.168.200.163, user: root, password: 123456}
  - {name: worker01-164, address: 192.168.200.164, internalAddress: 192.168.200.164, user: root, password: 123456}
  - {name: worker02-165, address: 192.168.200.165, internalAddress: 192.168.200.165, user: root, password: 123456}
  roleGroups:
    etcd:
    - master01-161
	- master02-162
	- master03-163
    master:
    - master01-161
	- master02-162
	- master03-163
    worker:
    - worker01-164
	- worker02-165
  controlPlaneEndpoint:
    domain: lb.kubesphere.local
    address: "192.168.200.20"                   
    port: "6443"
     
# 創建集群
./kk create cluster -f config-sample.yaml
 
# 查看安裝日志
kubectl logs -n kubesphere-system $(kubectl get pod -n kubesphere-system -l app=ks-install -o jsonpath='{.items[0].metadata.name}') -f
 
# 刪除集群
./kk delete cluster -f config-sample.yaml
 
# kubectl命令補全
apt-get install bash-completion
echo 'source <(kubectl completion bash)' >>~/.bashrc
kubectl completion bash >/etc/bash_completion.d/kubectl
 
官方文檔：
https://kubesphere.io/zh/docs/installing-on-linux/