Install
文档
- minikube start (opens new window)
- Accessing Dashboard (opens new window)
- kubectl
- minikube安装dashboard (opens new window)
Linux
安装
安装Docker
vi /usr/lib/systemd/system/docker.service
# 在ExecStart=/usr/bin/dockerd 后面加上
--exec-opt native.cgroupdriver=systemd
# 重启
systemctl daemon-reload
systemctl restart docker
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创建用户、组
# 查看用户、组
cat /etc/passwd
cat /etc/group
# 创建用户admin、组fobgochod
useradd -g docker -u 1000 admin
groupadd -g 1000 fobgochod
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# kubectl安装
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl
kubectl version --client
alias kubectl="kubectl -s http://localhost:39215"
kubectl -s http://localhost:39215 version
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minikube安装
切换到非root用户
su admin
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curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
install minikube-linux-amd64 /usr/local/bin/minikube
# minikube manager
yum install conntrack
minikube start --driver=docker
minikube config set driver docker
minikube config set memory 16384
minikube version
minikube status
minikube pause
minikube stop
minikube delete --all
minikube service tomcat-service
minikube ssh -- docker info
minikube service list
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dashboard安装
# 启用dashboard
minikube addons list
minikube addons enable dashboard
# 查看如下信息
# Labels: k8s-app=kubernetes-dashboard
# Port: 9090/TCP
kubectl get pod -A
kubectl describe pod kubernetes-dashboard-968bcb79-hb58p -n kubernetes-dashboard
# 方法一：直接修改
kubectl -n kubernetes-dashboard edit service kubernetes-dashboard
kubectl -n kubernetes-dashboard get service kubernetes-dashboard
minikube service list
# 方法二：新增yml，创建service
vi minikube-dashboard.yaml
kubectl apply -f minikube-dashboard.yaml
minikube service list
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minikube-dashboard.yaml
# minikube-dashboard.yaml
apiVersion: v1
kind: Service
metadata:
name: minikube-dashboard
namespace: kubernetes-dashboard
labels:
addonmanager.kubernetes.io/mode: Reconcile
k8s-app: kubernetes-dashboard
kubernetes.io/minikube-addons: dashboard
spec:
selector:
k8s-app: kubernetes-dashboard
type: NodePort
ports:
- protocol: TCP
port: 9000
targetPort: 9090
nodePort: 30001
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打包部署
## 创建部署 pod
kubectl create -f k8s-dahboard.yml
## 更新部署配置
kubectl apply -f k8s-dahboard.yml
## 删除
kubectl delete -f k8s-dahboard.yml
## 查看已经部署的pod 显示信息全面[-o wide]
kubectl get pod [-o wide]
## 查看pod详细信息
kubectl describe pod podName
## 查看pod输出日志
kubectl logs [-f] podName
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tomcat部署
# tomcat-deploy.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: tomcat-deploy
labels:
k8s-app: tomcat-cluster
spec:
replicas: 2
selector:
matchLabels:
k8s-app: tomcat-cluster
template:
metadata:
labels:
k8s-app: tomcat-cluster
spec:
containers:
- name: tomcat-cluster
image: tomcat:jdk8-openjdk-slim
ports:
- containerPort: 8080
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# tomcat-service.yaml
apiVersion: v1
kind: Service
metadata:
name: tomcat-service
labels:
k8s-app: tomcat-cluster
spec:
type: NodePort
selector:
k8s-app: tomcat-cluster
ports:
- port: 8000
targetPort: 8080
nodePort: 30002
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vi tomcat-deploy.yaml
# 部署
kubectl create -f tomcat-deploy.yaml
# 查看
kubectl get deployment
kubectl get pod -o wide
kubectl describe pod tomcat-deploy-749b7f4dbf-98zhz
vi tomcat-service.yaml
# 服务
kubectl create -f tomcat-service.yaml
# 查看
kubectl get service
kubectl describe service tomcat-service
minikube service list
minikube service tomcat-service --url
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