# 安装Docker
# yum install -y docker

# 启动Docker服务
# systemctl start docker
# systemctl enable docker

# 验证Docker安装
# docker –version
Docker version 20.10.17, build 100c701

# 运行Hello World容器
# docker run hello-world
Hello from Docker!
This message shows that your installation appears to be working correctly.
…

# 拉取镜像
# docker pull nginx

# 查看本地镜像
# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest d1a364dc548d 2 weeks ago 141MB
hello-world latest feb5d9fea6a5 2 months ago 13.3kB

# 构建镜像
# vi Dockerfile
FROM ubuntu:20.04

RUN apt-get update && apt-get install -y nginx

EXPOSE 80

CMD [“nginx”, “-g”, “daemon off;”]

# 构建镜像
# docker build -t my-nginx .

# 推送镜像
# docker tag my-nginx username/my-nginx:latest
# docker push username/my-nginx:latest

# 运行容器
# docker run -d –name my-container -p 8080:80 nginx

# 查看运行中的容器
# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1234567890ab nginx “/docker-entrypoint.…” 2 minutes ago Up 2 minutes 0.0.0.0:8080->80/tcp my-container

# 停止容器
# docker stop my-container

# 启动容器
# docker start my-container

# 删除容器
# docker rm my-container

# 安装kubectl
# curl -LO “https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl”
# chmod +x kubectl
# mv kubectl /usr/local/bin/

# 验证kubectl安装
# kubectl version –client
Client Version: version.Info{Major:”1″, Minor:”23″, GitVersion:”v1.23.6″, GitCommit:”ad3338546da947756e8a88aa6822e9c11e7eac22″, GitTreeState:”clean”, BuildDate:”2022-04-14T08:49:13Z”, GoVersion:”go1.17.9″, Compiler:”gc”, Platform:”linux/amd64″}

# 部署应用到Kubernetes
# vi deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
– name: nginx
image: nginx:latest
ports:
– containerPort: 80

# 应用部署
# kubectl apply -f deployment.yaml

# 查看部署状态
# kubectl get deployments
NAME READY UP-TO-DATE AVAILABLE AGE
nginx-deployment 3/3 3 3 10m

# 创建服务
# vi service.yaml
apiVersion: v1
kind: Service
metadata:
name: nginx-service
spec:
selector:
app: nginx
ports:
– port: 80
targetPort: 80
type: LoadBalancer

# 应用服务
# kubectl apply -f service.yaml

# 查看服务状态
# kubectl get services
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
nginx-service LoadBalancer 10.96.123.45 80:32123/TCP 5m
kubernetes ClusterIP 10.96.0.1 443/TCP 1d

# 在Kubernetes中使用服务发现
# kubectl get services
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
nginx-service LoadBalancer 10.96.123.45 80:32123/TCP 10m

# 内部服务通信
# kubectl run curl –image=curlimages/curl –restart=Never — curl nginx-service

# 使用Jenkins进行CI/CD
# 安装Jenkins
# wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
# rpm –import https://pkg.jenkins.io/redhat-stable/jenkins.io.key
# yum install -y jenkins

# 启动Jenkins服务
# systemctl start jenkins
# systemctl enable jenkins

# 访问Jenkins
# curl http://fgedudb:8080

# 使用Terraform管理基础设施
# 安装Terraform
# wget https://releases.hashicorp.com/terraform/1.1.9/terraform_1.1.9_linux_amd64.zip
# unzip terraform_1.1.9_linux_amd64.zip
# mv terraform /usr/local/bin/

# 验证Terraform安装
# terraform version
Terraform v1.1.9

# 编写Terraform配置
# vi main.tf
provider “aws” {
region = “us-west-2”
}

resource “aws_instance” “example” {
ami = “ami-0c55b159cbfafe1f0”
instance_type = “t2.micro”

tags = {
Name = “ExampleInstance”
}
}

# 初始化Terraform
# terraform init

# 应用Terraform配置
# terraform apply