本文主要是介绍[Kubernetes] KubeKey 部署 K8s v1.28.8，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
文章目录
- 1.K8s 部署方式
- 2.操作系统基础配置
- 3.安装部署 K8s
- 4.验证 K8s 集群
- 5.部署测试资源
1.K8s 部署方式
- kubeadm: kubekey, sealos, kubespray
- 二进制: kubeasz
- rancher
2.操作系统基础配置
| 主机名 | 内网IP | 外网IP |
|---|---|---|
| master | 192.168.66.2 | 139.198.9.7 |
| node1 | 192.168.66.3 | 139.198.40.175 |
| node2 | 192.168.66.4 | 139.198.16.33 |
- 内网互通
- 每个机器有自己域名
- 防火墙开放30000~32767端口
#各个机器设置自己的域名
hostnamectl set-hostname master
hostnamectl set-hostname node1
hostnamectl set-hostname node2# 将 SELinux 设置为 permissive 模式（相当于将其禁用）
setenforce 0
sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config#关闭swap
swapoff -a
sed -ri 's/.*swap.*/#&/' /etc/fstab#允许 iptables 检查桥接流量
cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
br_netfilter
EOFcat <<EOF | sudo tee /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF
sudo sysctl --system
配置时间同步:
yum install chrony# 上面的手工操作，也可以使用 sed 自动替换
sed -i 's/^pool pool.*/pool cn.pool.ntp.org iburst/g' /etc/chrony.confsystemctl enable chronyd --now# 执行查看命令
chronyc sourcestats -v
安装依赖:
# 安装 Kubernetes 系统依赖包
yum install -y curl socat conntrack ebtables ipset ipvsadm# 安装 tar 包，不装的话后面会报错。openEuler 也是个奇葩，迭代这么多版本了，默认居然还不安装 tar
yum install tar
3.安装部署 K8s
master节点:
下载 kk:
mkdir ~/kubekey
cd ~/kubekey/# 选择中文区下载(访问 GitHub 受限时使用)
export KKZONE=cn
curl -sfL https://get-kk.kubesphere.io | sh -
#查看 KubeKey 支持的 Kubernetes 版本列表
./kk version --show-supported-k8s
创建 K8s 集群部署配置文件:
# 创建 K8s 集群部署配置文件
./kk create config -f k8s-v1288.yaml --with-kubernetes v1.28.8
修改配置文件:
vi k8s-v1288.yaml# 修改配置文件
apiVersion: kubekey.kubesphere.io/v1alpha2
kind: Cluster
metadata:name: sample
spec:hosts:- {name: master, address: 192.168.66.2, internalAddress: 192.168.66.2, user: root, password: "111111zZ!"}- {name: node1, address: 192.168.66.3, internalAddress: 192.168.66.3, user: root, password: "111111zZ!"}- {name: node2, address: 192.168.66.4, internalAddress: 192.168.66.4, user: root, password: "111111zZ!"}roleGroups:etcd:- mastercontrol-plane:- masterworker:- master- node1- node2controlPlaneEndpoint:## Internal loadbalancer for apiserversinternalLoadbalancer: haproxydomain: lb.opsxlab.cnaddress: ""port: 6443kubernetes:version: v1.28.8clusterName: opsxlab.cnautoRenewCerts: truecontainerManager: containerdetcd:type: kubekeynetwork:plugin: calicokubePodsCIDR: 10.233.64.0/18kubeServiceCIDR: 10.233.0.0/18## multus support. https://github.com/k8snetworkplumbingwg/multus-cnimultusCNI:enabled: falseregistry:privateRegistry: ""namespaceOverride: ""registryMirrors: []insecureRegistries: []addons: []
执行配置文件:
./kk create cluster -f k8s-v1288.yaml
[root@ksp-master-1 kubekey]# ./kk create cluster -f k8s-v1288.yaml_ __ _ _ __
| | / / | | | | / /
| |/ / _ _| |__ ___| |/ / ___ _ _
| \| | | | '_ \ / _ \ \ / _ \ | | |
| |\ \ |_| | |_) | __/ |\ \ __/ |_| |
\_| \_/\__,_|_.__/ \___\_| \_/\___|\__, |__/ ||___/14:24:09 CST [GreetingsModule] Greetings
14:24:09 CST message: [node2]
Greetings, KubeKey!
14:24:09 CST message: [master]
Greetings, KubeKey!
14:24:09 CST message: [node1]
Greetings, KubeKey!
14:24:09 CST success: [node2]
14:24:09 CST success: [master]
14:24:09 CST success: [node1]
14:24:09 CST [NodePreCheckModule] A pre-check on nodes
14:24:09 CST success: [node2]
14:24:09 CST success: [master]
14:24:09 CST success: [node1]14:24:09 CST [ConfirmModule] Display confirmation form
+--------------+------+------+---------+----------+-------+-------+---------+-----------+--------+--------+------------+------------+-------------+------------------+--------------+
| name | sudo | curl | openssl | ebtables | socat | ipset | ipvsadm | conntrack | chrony | docker | containerd | nfs client | ceph client | glusterfs client | time |
+--------------+------+------+---------+----------+-------+-------+---------+-----------+--------+--------+------------+------------+-------------+------------------+--------------+
| master | y | y | y | y | y | y | y | y | y | | | | | | CST 14:24:09 |
| node1 | y | y | y | y | y | y | y | y | y | | | | | | CST 14:24:09 |
| node2 | y | y | y | y | y | y | y | y | y | | | | | | CST 14:24:09 |
+--------------+------+------+---------+----------+-------+-------+---------+-----------+--------+--------+------------+------------+-------------+------------------+--------------+This is a simple check of your environment.
Before installation, ensure that your machines meet all requirements specified at
https://github.com/kubesphere/kubekey#requirements-and-recommendationsContinue this installation? [yes/no]:yes
nfs client、ceph client、glusterfs client 3 个与存储有关的 client 显示没有安装。
docker、containerd 会根据配置文件选择的 containerManager 类型自动安装。
4.验证 K8s 集群
kubectl get nodes
获取在 K8s 集群节点上已经下载的 Image 列表:
crictl images ls
kubectl get pod -A
5.部署测试资源
kubectl create deployment nginx --image=nginx:alpine --replicas=2
kubectl create service nodeport nginx --tcp=80:80
kubectl get svc -o wide
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