1. 关闭firewalld(所有节点)
systemctl stop firewalld //关闭
systemctl disable firewalld //开机禁起
2.关闭swap(所有节点)
sudo swapoff -a
//悠久关闭
sed -ri 's/.*swap.*/#&/' /etc/fstab
3.设置服务器主机hostname每个节点的名称(所有节点)
hostnamectl set-hostname master
//查看名称
hostname
4.设置所有节点host(所有节点)
vi /etc/hosts
192.168.2.4 master
192.168.2.5 node1
5.设置安装源(所有节点)
// 添加 k8s 安装源
cat <<EOF > kubernetes.repo[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
mv kubernetes.repo /etc/yum.repos.d/
// 添加 Docker 安装源
yum-config-manager--add-repo http://mirrors.aliyun.com/docker-ce/Tinux/centos/docker-ce.repo
6.安装docker和k8s(所有节点)
卸载之前版本
yum remove docker-ce docker-ce-cli containerd.io -y
安装1.22.4版本
yum install kubelet-1.22.4 kubectl-1.22.4 kubeadm-1.22.4 docker-ce-20.10.0 docker-ce-cli-20.10.0 -y
#7.启动k8s和docker(所有节点)
systemctl enable kubelet
systemctl start kubelet
systemctl enable docker
systemctl start docker
#8.修改 docker 配置 (所有节点)
cat <<EOF > daemon.json
{
"registry-mirrors": ["https://m1kuyd9u.mirror.aliyuncs.com"],
"exec-opts": ["native.cgroupdriver=systemd"]
}
EOF
mv daemon.json /etc/docker/
#重启生效
systemctl daemon-reload
systemctl restart docker
9.用 kubeadm 初始化集群 (仅在主节点跑)
kubeadm init --apiserver-advertise-address=192.168.2.7 --image-repository registry.aliyuncs.com/google_containers --kubernetes-version=v1.22.4 --service-cidr=10.96.0.0/12 --pod-network-cidr=10.244.0.0/16 --ignore-preflight-errors=all
记得把 kubeadm join ***保存起来
10.主节点执行
mkdir -p #HOME/.kube
cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
chown $(id -u):$(id -g) $HOME/.kube/config
主节点执行
scp /etc/kuberentes/admin.conf 需要传输的子节点id:/etc/kuberentes/admin.conf
//子节点执行
mkdir -p #HOME/.kube
cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
chown $(id -u):$(id -g) $HOME/.kube/config
查看子节点是否准备好
kubectl get nodes
把 kubeadm join *** 在子节点执行
然后执行
kubectl apply -f http://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
如果还是显示The connection to the server raw.githubusercontent.com was refused - did you specify the right host or port?
执行下面代码
sudo vim /etc/hosts
199.232.28.133 raw.githubusercontent.com
//启动nginx
kubectl run nginx --image=nginx:latest
//查看项目状态
kubectl describe pod/nginx
kubectl get pod -o wide
kubectl port-forward --address 0.0.0.0 pod/nginx 80:80
构件node dockerfile
FROM node
ADD /wwwroot/nodejs.tar .gz /root
WORKDIR /root
RUN chmod -R 777 nodejs
WORKDIR /root/nodejs
EXPOSE 3000
RUN npm install cnpm -g --registry=https://registry.nlark.com
RUN cnpm instal1
CMD node app.js
执行build
docker build -f nodejsDockerfile -t docker.io/itying/nodejsimg:latest .
启动项目
docker run -tid --name nodejs01 -p 8080:8080 itying/nodejsimg
进入容器测试
docker exec -ti 5a5e526b48df /bin/bash
cur1 127.0.0.1:8080
//liunx打包
set GOOS=linux
set GOARCH=amd64
go build main.go