sealos自动部署k8s集群

官网：安装 K8s 集群 | Sealos: 专为云原生开发打造的以 K8s 为内核的云操作系统

1、sealos工具下载

二进制自动下载

VERSION=`curl -s https://api.github.com/repos/labring/sealos/releases/latest | grep -oE '"tag_name": " $\^"$ +"' | head -n1 | cut -d'"' -f4`
curl -sfL https://mirror.ghproxy.com/https://raw.githubusercontent.com/labring/sealos/main/scripts/install.sh | PROXY_PREFIX=https://mirror.ghproxy.com sh -s ${VERSION} labring/sealos

rpm源管理安装

$root@k8s-master1 \~$ # uname -m #检查架构

x86_64

sudo cat > /etc/yum.repos.d/labring.repo << EOF
$fury$
name=labring Yum Repo

baseurl=https://yum.fury.io/labring/

enabled=1

gpgcheck=0

EOF

sudo yum clean all

sudo yum install sealos

2、 k8s环境部署

官方建议：

K8s 的小版本号越高，集群越稳定。例如 v1.28.x，其中的 x 就是小版本号。建议使用小版本号比较高的 K8s 版本。到本文截止时间为止，v1.27 最高的版本号是 v1.27.7，而 v1.28 最高的版本号是 v1.28.3，所以建议使用 v1.27.7。你需要根据实际情况来选择最佳的 K8s 版本
个人踩坑：

因为本次使用的CNI是cilium，因此对内核的版本要求会高些，这里需要先升级内核的。（一般是5以上就行）

$root@k8s-master1 \~$ # uname -r

5.4.278-1.el7.elrepo.x86_64

安装 K8s 单机版

sealos version must >= v4.1.0

$ 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 --single

安装 K8s 集群

#执行之前各节点记得做免密钥

$ 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 192.168.64.2,192.168.64.22,192.168.64.20 \

--nodes 192.168.64.21,192.168.64.19 -p $your-ssh-passwd$

集群

$root@k8s-master1 \~$ # kubectl get all -A

NAMESPACE NAME READY STATUS RESTARTS AGE

kube-system pod/cilium-5ts7s 1/1 Running 0 24m

kube-system pod/cilium-9m2tj 1/1 Running 0 24m

kube-system pod/cilium-hvsnp 1/1 Running 0 24m

kube-system pod/cilium-mplw9 1/1 Running 0 24m

kube-system pod/cilium-operator-86666d88cb-77p6r 1/1 Running 0 24m

kube-system pod/cilium-tk8ks 1/1 Running 0 24m

kube-system pod/coredns-5d78c9869d-h6vrm 1/1 Running 0 25m

kube-system pod/coredns-5d78c9869d-v762n 1/1 Running 0 25m

kube-system pod/etcd-k8s-master1 1/1 Running 0 25m

kube-system pod/etcd-k8s-master2 1/1 Running 0 25m

kube-system pod/etcd-k8s-master3 1/1 Running 0 24m

kube-system pod/kube-apiserver-k8s-master1 1/1 Running 0 25m

kube-system pod/kube-apiserver-k8s-master2 1/1 Running 0 25m

kube-system pod/kube-apiserver-k8s-master3 1/1 Running 0 24m

kube-system pod/kube-controller-manager-k8s-master1 1/1 Running 1 (25m ago) 25m

kube-system pod/kube-controller-manager-k8s-master2 1/1 Running 0 25m

kube-system pod/kube-controller-manager-k8s-master3 1/1 Running 0 24m

kube-system pod/kube-proxy-4sp89 1/1 Running 0 25m

kube-system pod/kube-proxy-ccn7q 1/1 Running 0 24m

kube-system pod/kube-proxy-j2h9w 1/1 Running 0 24m

kube-system pod/kube-proxy-pd6tj 1/1 Running 0 24m

kube-system pod/kube-proxy-tjgx7 1/1 Running 0 25m

kube-system pod/kube-scheduler-k8s-master1 1/1 Running 1 (25m ago) 25m

kube-system pod/kube-scheduler-k8s-master2 1/1 Running 0 25m

kube-system pod/kube-scheduler-k8s-master3 1/1 Running 0 24m

kube-system pod/kube-sealos-lvscare-k8s-node1 1/1 Running 0 24m

kube-system pod/kube-sealos-lvscare-k8s-node2 1/1 Running 0 24m

NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE

default service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 25m

kube-system service/hubble-peer ClusterIP 10.96.2.203 <none> 443/TCP 24m

kube-system service/kube-dns ClusterIP 10.96.0.10 <none> 53/UDP,53/TCP,9153/TCP 25m

NAMESPACE NAME DESIRED CURRENT READY UP-TO-DATE AVAILABLE NODE SELECTOR AGE

kube-system daemonset.apps/cilium 5 5 5 5 5 kubernetes.io/os=linux 24m

kube-system daemonset.apps/kube-proxy 5 5 5 5 5 kubernetes.io/os=linux 25m

NAMESPACE NAME READY UP-TO-DATE AVAILABLE AGE

kube-system deployment.apps/cilium-operator 1/1 1 1 24m

kube-system deployment.apps/coredns 2/2 2 2 25m

NAMESPACE NAME DESIRED CURRENT READY AGE

kube-system replicaset.apps/cilium-operator-86666d88cb 1 1 1 24m

kube-system replicaset.apps/coredns-5d78c9869d 2 2 2 25m

报错记录：

Error: cluster status is not ClusterSuccess

sealos reset

panic: arch /root/.bashrc: line 13: kubectl: command not found

x86_64 not yet supported, feel free to file an issue

goroutine 1 $running$ :

github.com/labring/sealos/pkg/apply.getHostArch.func1({0xc0005a2ec0?, 0xc0000134e8?})

github.com/labring/sealos/pkg/apply/utils.go:104 +0x174

github.com/labring/sealos/pkg/apply.GetHostArch({0x44c4cb0?, 0xc0000134e8?}, {0xc0005a2ec0, 0x10})

github.com/labring/sealos/pkg/apply/utils.go:113 +0x3f

github.com/labring/sealos/pkg/apply.(*ClusterArgs).runArgs(0xc00083fc80, 0x40082a7?, 0xc0008ff440, {0xc0005ad440, 0x3, 0x4})

github.com/labring/sealos/pkg/apply/run.go:140 +0x705

github.com/labring/sealos/pkg/apply.NewApplierFromArgs(0xc000177800, 0xc0008ff440, {0xc0005ad440, 0x3, 0x4})

github.com/labring/sealos/pkg/apply/run.go:72 +0x48c

github.com/labring/sealos/cmd/sealos/cmd.newRunCmd.func1(0xc000177800?, {0xc000388bd0?, 0x9?, 0x9?})

github.com/labring/sealos/cmd/sealos/cmd/run.go:73 +0x65

github.com/spf13/cobra.(*Command).execute(0xc000177800, {0xc000388b40, 0x9, 0x9})

github.com/spf13/cobra@v1.7.0/command.go:940 +0x862

github.com/spf13/cobra.(*Command).ExecuteC(0x5c6d560)

github.com/spf13/cobra@v1.7.0/command.go:1068 +0x3bd

github.com/spf13/cobra.(*Command).Execute(...)

github.com/spf13/cobra@v1.7.0/command.go:992

github.com/labring/sealos/cmd/sealos/cmd.Execute()

github.com/labring/sealos/cmd/sealos/cmd/root.go:49 +0x25

main.main()

github.com/labring/sealos/cmd/sealos/main.go:27 +0x29

检查各个节点的/root/.bashrc下的13行删除

#可选，下载kubectl

curl -LO "https://dl.k8s.io/release/v1.27.7/bin/linux/amd64/kubectl"

chmod +x kubectl

sudo mv kubectl /usr/bin/