基于SealOS部署高可用的kubernetes集群 • 春日心动日记

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准备SealOS#

机器信息如下：

服务器名称	IP	Role
ready-kubernetes-master1	10.1.11.100	Control-Plane
ready-kubernetes-master2	10.1.11.101	Control-Plane
ready-kubernetes-master3	10.1.11.102	Control-Plane
ready-kubernetes-node1	10.1.11.103	Node
ready-kubernetes-node2	10.1.11.104	Node
ready-kubernetes-node3	10.1.11.105	Node

通过SealOS部署的前提条件#

SealOS For Kubernetes ↗

获取当前稳定版本的SealOS列表

# 获取非beta版本
curl --silent "https://api.github.com/repos/labring/sealos/releases" | jq -r 'map(select(.tag_name | test("beta"; "i") | not)) | .[].tag_name'

bash

下载最新稳定版本的SealOS，版本号为v4.3.7

# 在一台主机上执行就行了
VERSION=v4.3.7
wget https://mirror.ghproxy.com/https://github.com/labring/sealos/releases/download/${VERSION}/sealos_${VERSION#v}_linux_amd64.tar.gz \
  && tar zxvf sealos_${VERSION#v}_linux_amd64.tar.gz sealos && chmod +x sealos && mv sealos /usr/bin

bash

验证SealOS是否安装完成

[root@localhost ~]# sealos version
SealosVersion:
  buildDate: "2023-10-30T16:19:05Z"
  compiler: gc
  gitCommit: f39b2339
  gitVersion: 4.3.7
  goVersion: go1.20.10
  platform: linux/amd64

bash

正常能显示出来版本号信息就表示安装正常。

快速部署高可用集群#

默认使用的容器运行时为Containerd

开始使用sealOS来部署多节点集群

sealos run registry.cn-shanghai.aliyuncs.com/labring/kubernetes:v1.27.7 registry.cn-shanghai.aliyuncs.com/labring/helm:v3.9.4 registry.cn-shanghai.aliyuncs.com/labring/cilium:v1.13.4 \
     --masters 10.1.11.100,10.1.11.101,10.1.11.102 \
     --nodes 10.1.11.103,10.1.11.104,10.1.11.105  -p 123..com

bash

--masters: kubernetes-master的节点地址列表
--nodes: kubernetes-node的节点地址列表
-p: 远程主机的SSH登录密码

检查是否安装成功出现如下内容表示安装成功

2024-04-11T15:20:01 info Executing pipeline RunGuest in CreateProcessor.
ℹ️  Using Cilium version 1.13.4
🔮 Auto-detected cluster name: kubernetes
🔮 Auto-detected datapath mode: tunnel
🔮 Auto-detected kube-proxy has been installed
2024-04-11T15:20:03 info succeeded in creating a new cluster, enjoy it!
2024-04-11T15:20:03 info 
      ___           ___           ___           ___       ___           ___
     /\  \         /\  \         /\  \         /\__\     /\  \         /\  \
    /::\  \       /::\  \       /::\  \       /:/  /    /::\  \       /::\  \
   /:/\ \  \     /:/\:\  \     /:/\:\  \     /:/  /    /:/\:\  \     /:/\ \  \
  _\:\~\ \  \   /::\~\:\  \   /::\~\:\  \   /:/  /    /:/  \:\  \   _\:\~\ \  \
 /\ \:\ \ \__\ /:/\:\ \:\__\ /:/\:\ \:\__\ /:/__/    /:/__/ \:\__\ /\ \:\ \ \__\
 \:\ \:\ \/__/ \:\~\:\ \/__/ \/__\:\/:/  / \:\  \    \:\  \ /:/  / \:\ \:\ \/__/
  \:\ \:\__\    \:\ \:\__\        \::/  /   \:\  \    \:\  /:/  /   \:\ \:\__\
   \:\/:/  /     \:\ \/__/        /:/  /     \:\  \    \:\/:/  /     \:\/:/  /
    \::/  /       \:\__\         /:/  /       \:\__\    \::/  /       \::/  /
     \/__/         \/__/         \/__/         \/__/     \/__/         \/__/

                  Website: https://www.sealos.io/
                  Address: github.com/labring/sealos
                  Version: 4.3.7-f39b2339

bash

简单的验证一下kubernetes工作是否正常

[root@ready-kubernetes-master1 ~]# kubectl get nodes
NAME                       STATUS   ROLES           AGE     VERSION
ready-kubernetes-master1   Ready    control-plane   5m26s   v1.27.7
ready-kubernetes-master2   Ready    control-plane   4m50s   v1.27.7
ready-kubernetes-master3   Ready    control-plane   4m      v1.27.7
ready-kubernetes-node1     Ready    <none>          3m48s   v1.27.7
ready-kubernetes-node2     Ready    <none>          3m47s   v1.27.7
ready-kubernetes-node3     Ready    <none>          3m49s   v1.27.7

bash