timg (1).jpg

需要先将hostname添加到/etc/hosts

1.安装docker~

yum install -y yum-utils \
  device-mapper-persistent-data \
  lvm2
yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo
yum-config-manager --enable docker-ce-nightly
yum install docker-ce docker-ce-cli containerd.io
systemctl start docker
systemctl enable docker

2.开启镜像加速，并且设置docker driver为systemd

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "exec-opts": ["native.cgroupdriver=systemd"],   
  "registry-mirrors": ["https://npluwflg.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

3.修改内核参数，不然安装报错

vim /etc/sysctl.conf  #新增
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
##然后执行
sysctl -p 

4.安装minikube

curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 \
  && chmod +x minikube
sudo mkdir -p /usr/local/bin/
sudo install minikube /usr/local/bin/ 

5.启动kubernetes集群

minikube start --registry-mirror=https://registry.docker-cn.com --kubernetes-version v1.17.0 --driver=none --image-repository='registry.cn-hangzhou.aliyuncs.com/google_containers'

等。。。。

clipboard.png

5.安装kubectl

curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl

测试

[root@host-172-16-56-107 ~]# kubectl get nodes
NAME                 STATUS   ROLES    AGE   VERSION
host-172-16-56-107   Ready    master   31m   v1.17.0

创建一个nginx deploy

[root@host-172-16-56-107 ~]# kubectl run deploy nginx --image=nginx
deployment.apps/deploy created

[root@host-172-16-56-107 ~]# kubectl get deploy
NAME     READY   UP-TO-DATE   AVAILABLE   AGE
deploy   0/1     1            0           5m50s

通过nodeport暴露NGINX

[root@host-172-16-56-107 ~]# kubectl expose deployment nginx --port=80 --target-port=80
service/nginx exposed
[root@host-172-16-56-107 ~]# kubectl get service 
NAME         TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)   AGE
kubernetes   ClusterIP   10.96.0.1       <none>        443/TCP   43m
nginx        ClusterIP   10.96.203.233   <none>        80/TCP    6s

访问

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