中山手机网站建设费用,怎么建立公司网站,个人开发者,网页编辑软件 排行ansible可以安装的KS8版本如下#xff1a;
请按照此博客中的内容操作后#xff0c;才可以通过下面的命令查询到版本。
[rootk8s-master01 ~]# yum list kubectl --showduplicates | sort -r
kubectl.x86_64 1.20.0-0 kubern…ansible可以安装的KS8版本如下
请按照此博客中的内容操作后才可以通过下面的命令查询到版本。
[rootk8s-master01 ~]# yum list kubectl --showduplicates | sort -r
kubectl.x86_64 1.20.0-0 kubernetes
kubectl.x86_64 1.20.0-0 kubernetes
kubectl.x86_64 1.19.9-0 kubernetes
kubectl.x86_64 1.19.8-0 kubernetes
kubectl.x86_64 1.19.7-0 kubernetes
kubectl.x86_64 1.19.6-0 kubernetes
kubectl.x86_64 1.19.5-0 kubernetes
kubectl.x86_64 1.19.4-0 kubernetes
kubectl.x86_64 1.19.3-0 kubernetes
kubectl.x86_64 1.19.2-0 kubernetes
kubectl.x86_64 1.19.16-0 kubernetes
kubectl.x86_64 1.19.15-0 kubernetes
kubectl.x86_64 1.19.14-0 kubernetes
kubectl.x86_64 1.19.13-0 kubernetes
kubectl.x86_64 1.19.12-0 kubernetes
kubectl.x86_64 1.19.11-0 kubernetes
kubectl.x86_64 1.19.1-0 kubernetes
kubectl.x86_64 1.19.10-0 kubernetes
kubectl.x86_64 1.19.0-0 kubernetes
[rootk8s-master01 ~]# 条件情况说明
准备4台机器是单master集群安装 192.168.186.128 k8s-master01 192.168.186.129 k8s-master02 192.168.186.130 k8s-master03 192.168.186.131 k8s-node01 192.168.186.132 ansible #永久修改主机名
hostnamectl set-hostname k8s-master01 bash #在master01上操作
hostnamectl set-hostname k8s-master02 bash #在master02上操作
hostnamectl set-hostname k8s-master03 bash #在master03上操作
hostnamectl set-hostname k8s-node01 bash #在node01上操作
hostnamectl set-hostname ansible bash #在ansible上操作1. ansible机器与部署k8s集群都做免密钥
cat /etc/hosts EOF
192.168.186.128 k8s-master01
192.168.186.129 k8s-master02
192.168.186.130 k8s-master03
192.168.186.131 k8s-node01
192.168.186.132 ansible
EOF
#所有机器上都操作
ssh-keygen -t rsa #一路回车不输入密码
###把本地的ssh公钥文件安装到远程主机对应的账户
for i in k8s-master01 k8s-master02 k8s-master03 k8s-node01 ansible;do ssh-copy-id -i .ssh/id_rsa.pub $i ;done
2. ansible安装
#Ansible服务器安装
yum install epel-release git -y
yum install ansible -y# 克隆部署k8s集群文件
yum -y install git
git clone https://gitee.com/qq759035366/ansible-kubeadm-install.git
#ansible机器上操作
cd ansible-kubeadm-install/
cat hosts EOF
[master]
# 如果部署单Master或多master的主master配置[masternode]
# 用于存储集群部署多节点master单独存放一个组对部署编写方便
192.168.186.128 node_namek8s-master01
192.168.186.129 node_namek8s-master02
192.168.186.130 node_namek8s-master03[node]
192.168.186.131 node_namek8s-node01[etcd]
192.168.186.128 etcd_nameetcd-1
192.168.186.129 etcd_nameetcd-2
192.168.186.130 etcd_nameetcd-3[lb]
# 如果部署单Master该项忽略
192.168.186.128 node_namek8s-master01
192.168.186.129 node_namek8s-master02[k8s:children]
master
masternode
node[newnode]
192.168.0.187 ansible_ssh_port22 node_namek8s-node02EOF
#ansible机器上操作
cat group_vars/all.yml EOF
# 安装目录
etcd_work_dir: /etc/etcd
tmp_dir: /tmp/k8s# k8s执行配置临时目录
tmp_kubernetes_dir: /root/kubernetes# 集群网络
service_cidr: 10.96.0.0/12
pod_cidr: 10.244.0.0/16 # 与roles/addons/files/calico.yaml中网段一致# 集群版本
k8s_version: 1.20.0 # 版本测试安装了v1.19.0-v1.20.0版本按照需要版本修改# 高可用如果部署单Master该项忽略
vip: 192.168.186.188
nic: ens33 # **注意这里一定要修改修改为实际内网网卡名# 自签证书可信任IP列表为方便扩展可添加多个预留IP
cert_hosts:# 包含所有etcd节点IPetcd:- 192.168.186.128- 192.168.186.129- 192.168.186.130
EOF
ansible-kubeadm-install/group_vars/all.yml #网卡默认是eth0,一定要修改这个网卡
ansible-kubeadm-install/roles/SingleMaster/tasks/main.yml #网卡默认是eth0,如果你做了修改一定要修改这个下面的网卡 替换方式参考博客
3. 高可用K8S集群v1.20.0安装
#K8S集群v1.20.0安装
cd /root/ansible-kubeadm-install
ansible-playbook -i hosts -uroot multi-master-deploy.yml注意这里只需要等待就行大概需要30多分钟就安装好了
4. 检查安装情况
kubectl get nodes
kubectl get pods -n kube-system[rootk8s-master01 ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8s-master01 Ready control-plane,master 35m v1.20.0
k8s-node01 Ready none 3m40s v1.20.0
k8s-node02 Ready none 34m v1.20.0
[rootk8s-master01 ~]# 5. dashboard检查
kubectl get pods,svc -n kubernetes-dashboard #查看dashboard对外端口[rootk8s-master01 ~]# kubectl get pods,svc -n kubernetes-dashboard #查看dashboard对外端口
NAME READY STATUS RESTARTS AGE
pod/dashboard-metrics-scraper-7b59f7d4df-z9m6m 1/1 Running 1 35m
pod/kubernetes-dashboard-5dbf55bd9d-m6vfr 1/1 Running 1 35mNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/dashboard-metrics-scraper ClusterIP 10.108.128.243 none 8000/TCP 35m
service/kubernetes-dashboard NodePort 10.104.187.42 none 443:30001/TCP 35m
[rootk8s-master01 ~]# #获取用户Token
kubectl describe secrets -n kube-system $(kubectl -n kube-system get secret | awk /dashboard-admin/{print $1})#使用输出的token登录Dashboard
#访问地址https://IP:30001/ #注意必须是https://6. 测试kubernetes 集群
kubectl create deployment nginx --imagenginx
kubectl expose deployment nginx --port80 --typeNodePort
kubectl get pod,svc
[rootk8s-master01 ~]# kubectl get pod,svc
NAME READY STATUS RESTARTS AGE
pod/nginx-6799fc88d8-qnf95 1/1 Running 1 3h12mNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP 10.96.0.1 none 443/TCP 3h57m
service/nginx NodePort 10.104.134.62 none 80:32216/TCP 3h12m
[rootk8s-master01 ~]#
浏览器访问 IP:32216
7. 节点扩容
修改hosts文件添加新节点IP
# vi hosts
...
[newnode]
192.168.0.187 ansible_ssh_port22 node_namek8s-node03#执行安装添加k8s集群node节点
ansible-playbook -i hosts -uroot add-node.yml # 如果安装某个阶段失败可针对性测试.例如只运行部署插件
# ansible-playbook -i hosts -uroot single-master-deploy.yml --tags common
所有HTTPS证书存放路径 部署产生的证书都会存放到目录“/tmp/k8s/ssl”一定要保存好后面还会用到~
