欧拉OpenEuler基于Kubeasz部署k8s.v2.250120
一、系统基础配置
三台机器：
xxx.xxx.xxx.xx1 PRD-MS-K8S01 主节点
xxx.xxx.xxx.xx2 PRD-MS-K8S02
xxx.xxx.xxx.xx3 PRD-MS-K8S03
1. 三台机器|修改主机名|关闭防火墙
hostnamectl set-hostname PRD-MS-K8S01
vim /etc/hosts
xxx.xxx.xxx.xx1 PRD-MS-K8S01
xxx.xxx.xxx.xx2 PRD-MS-K8S02
xxx.xxx.xxx.xx3 PRD-MS-K8S03
关闭防火墙
systemctl stop firewalld
systemctl disable firewalld
关闭selinux
sed -ri 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config
setenforce 0
2. 三台机器|配置SSH免密登录
# 生成证书，回车三峡
ssh-keygen -t rsa
# 免密到Kubernetes01，yes，然后输入密码
ssh-copy-id PRD-MS-K8S01
# 免密到Kubernetes02，yes，然后输入密码
ssh-copy-id PRD-MS-K8S02
# 免密到Kubernetes03，yes，然后输入密码
ssh-copy-id PRD-MS-K8S03
# 验证免密登录
ssh root@PRD-MS-K8S02
二、安装ansible
主节点进行以下操作。
yum -y install vconfig
yum install -y ansible
三、下载kubeasz3.6.5
主节点进行以下操作。
wget https://github.com/easzlab/kubeasz/releases/download/3.6.5/ezdown
chmod +x ./ezdown
./ezdown -D
docker images | wc -l
四、配置kubeasz
主节点进行以下操作。
cd /etc/kubeasz/
./ezctl new k8s1.27.1-cluster
cd /etc/kubeasz/clusters/k8s1.27.1-cluster/
vim hosts修改正确ip
[etcd]
xxx.xxx.xxx.xx1
xxx.xxx.xxx.xx2
xxx.xxx.xxx.xx3
[kube_master]
xxx.xxx.xxx.xx1 k8s_nodename='prd-ms-k8s01'
[kube_node]
xxx.xxx.xxx.xx1 k8s_nodename='prd-ms-k8s01'
xxx.xxx.xxx.xx2 k8s_nodename='prd-ms-k8s02'
xxx.xxx.xxx.xx3 k8s_nodename='prd-ms-k8s03'
五、安装K8S
主节点进行以下操作。
cd /etc/kubeasz
./ezctl setup k8s1.27.1-cluster all
./ezctl setup --help (可以看到每步具体安装什么）
./ezctl setup k8s1.27.1-cluster 01 ---》 系统环境 初始化
./ezctl setup k8s1.27.1-cluster 02 ---》安装etcd 集群
etcd 集群验证
export NODE_IPS="172.62.17.101 172.62.17.102 172.62.17.103"
for ip in ${NODE_IPS}; do ETCDCTL_API=3 etcdctl --endpoints=https://${ip}:2379 --cacert=/etc/kubernetes/ssl/ca.pem --cert=/etc/kubernetes/ssl/etcd.pem --key=/etc/kubernetes/ssl/etcd-key.pem endpoint health; done
结果
https://172.62.17.101:2379 is healthy: successfully committed proposal: took = 31.443754ms
https://172.62.17.102:2379 is healthy: successfully committed proposal: took = 37.993094ms
https://172.62.17.103:2379 is healthy: successfully committed proposal: took = 42.216398ms
./ezctl setup k8s1.27.1-cluster 03 ---》 安装 容器运行时runtime
ps -ef |grep container
./ezctl setup k8s1.27.1-cluster 04 ---》 安装master
ps -ef |grep kube
./ezctl setup k8s1.27.1-cluster 05 ---》 安装node
kubectl get node
./ezctl setup k8s1.27.1-cluster 06 ---》 安装网络插件
kubectl get pod -n kube-system
./ezctl setup k8s1.27.1-cluster 07 ---》 安装系统的其它应用插件
kubectl get pod -n kube-system
kubectl get svc -kube-system
kubernetes-dashboard NodePort 10.68.136.202
https://172.62.17.101:32444/
kubectl set env daemonset/calico-node -n kube-system IP_AUTODETECTION_METHOD=interface=ens18
daemonset.apps/calico-node env updated
