Devops-day6-Jenkins流水线容器化+Harbor私有仓库

文章目录

  • Jenkins流水线容器化+Harbor私有仓库
  • Harbor
    • 一、生成证书
      • 1.生成CA证书私钥
      • 2.生成CA证书
      • 3.生成服务器证书
      • 4.生成证书签名请求
      • 5.生成一个x509 v3扩展文件
      • 6.使用该v3.ext文件生成证书
      • 7.安装Docker
    • 二、颁发证书
      • 1.分发证书
      • 2.安装Harbor
      • 3.测试Harbor
  • Jenkins流水线实现容器化
      • 1.用JenKins连接K8S
        • 1)创建admin-csr.json(kubernetes)
        • 2)安装证书生成工具(kubernetes)
        • 3)创建证书私钥(kubernetes)
        • 4)配置证书(kubernetes)
        • 5)配置jenkins链接k8s(Jenkins)
      • 2.链接K8s测试

Jenkins流水线容器化+Harbor私有仓库

将Jenkins的编译环境迁移至k8s中

Harbor

部署私有镜像仓库(Harbor)

Harbor 是由 VMware 公司中国团队为企业用户设计的 Registry server 开源项目,包括了权限管理(RBAC)、LDAP、审计、管理界面、自我注册、HA 等企业必需的功能,同时针对中国用户的特点,设计镜像复制和中文支持等功能。

作为一个企业级私有 Registry 服务器,Harbor 提供了更好的性能和安全。提升用户使用 Registry 构建和运行环境传输镜像的效率。Harbor 支持安装在多个 Registry 节点的镜像资源复制,镜像全部保存在私有 Registry 中, 确保数据和知识产权在公司内部网络中管控。

另外,Harbor 也提供了高级的安全特性,诸如用户管理,访问控制和活动审计等:https://goharbor.io/

配置HTTPS

默认情况下,Harbor不附带证书,可以在没有安全性的情况下部署Harbor,以便您可以通过HTTP连接到它。但是,只有在没有连接到外部Internet的空白测试或开发环境中,才可以使用HTTP。在没有空隙的环境中使用HTTP会使您遭受中间人攻击;要配置HTTPS,必须创建SSL证书。

您可以使用由受信任的第三方CA签名的证书,也可以使用自签名证书。本节介绍如何使用 OpenSSL创建CA,以及如何使用CA签署服务器证书和客户端证书。

一、生成证书

  • 在生产环境中,您应该从CA获得证书。在测试或开发环境中,您可以生成自己的CA。要生成CA证书,请运行以下命令。

1.生成CA证书私钥

mkdir /opt/cert
cd /opt/cert
openssl genrsa -out ca.key 4096

2.生成CA证书

openssl req -x509 -new -nodes -sha512 -days 3650 \
-subj "/C=CN/ST=ShangHai/L=ShangHai/O=Oldboy/OU=Linux/CN=192.168.12.11" \
-key ca.key \
-out ca.crt

3.生成服务器证书

openssl genrsa -out 192.168.12.11.key 4096

4.生成证书签名请求

openssl req -sha512 -new \
-subj "/C=CN/ST=ShangHai/L=ShangHai/O=Oldboy/OU=Linux/CN=192.168.12.11" \
-key 192.168.12.11.key \
-out 192.168.12.11.csr

5.生成一个x509 v3扩展文件

  • 域名版(企业用内)
cat > v3.ext <<-EOF
authorityKeyIdentifier=keyid,issuer
basicConstraints=CA:FALSE
keyUsage = digitalSignature, nonRepudiation, keyEncipherment, dataEncipherment
extendedKeyUsage = serverAuth
subjectAltName = @alt_names

[alt_names]
DNS.1=yourdomain.com
DNS.2=yourdomain
DNS.3=hostname
EOF
  • IP版
cat > v3.ext <<-EOF
authorityKeyIdentifier=keyid,issuer
basicConstraints=CA:FALSE
keyUsage = digitalSignature, nonRepudiation, keyEncipherment, dataEncipherment
extendedKeyUsage = serverAuth
subjectAltName = IP:192.168.12.11
EOF

6.使用该v3.ext文件生成证书

openssl x509 -req -sha512 -days 3650 \
-extfile v3.ext \
-CA ca.crt -CAkey ca.key -CAcreateserial \
-in 192.168.12.11.csr \
-out 192.168.12.11.crt

7.安装Docker

yum install yum-utils -y
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum makecache fast
yum -y install docker-ce
systemctl enable --now docker

二、颁发证书

颁发证书给Harbor和Docker来用

生成后ca.crt,192.168.12.70.crt和192.168.12.70.key文件,必须将它们提供给Harbor和Docker工人,和重新配置港使用它们

1.分发证书

  • 将服务器证书和密钥复制到Harbor主机上的certficates文件夹中
openssl x509 -inform PEM -in 192.168.12.11.crt -out 192.168.12.11.cert

mkdir -pv /etc/docker/certs.d/192.168.12.11/

cp 192.168.12.11.cert /etc/docker/certs.d/192.168.12.11/
cp 192.168.12.11.key /etc/docker/certs.d/192.168.12.11/
cp ca.crt /etc/docker/certs.d/192.168.12.11/

# 如果nginx端口默认部署443和80,后面port则指定为端口号
/etc/docker/certs.d/192.168.12.11:port
/etc/docker/certs.d/192.168.12.11:port

# 复制Harbor证书(当前测试执行此步)
mkdir -p /data/cert 
cp 192.168.12.11.crt  /data/cert
cp 192.168.12.11.key /data/cert

# 重启docker,加载证书
systemctl restart docker

2.安装Harbor

链接:https://github.com/goharbor/harbor

# 进入下载目录
cd /opt

# 下载
wget https://github.com/goharbor/harbor/releases/download/v2.1.0-rc2/harbor-offline-installer-v2.1.0-rc2.tgz

# 解压
tar xf harbor-offline-installer-v2.1.0-rc2.tgz

# 进入harbor目录
cd harbor/

# 下载docker-composrt
curl -L "https://github.com/docker/compose/releases/download/1.24.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

# 打印出上方地址,复制到浏览器下载
echo "https://github.com/docker/compose/releases/download/1.24.1/docker-compose-$(uname -s)-$(uname -m)"
https://github.com/docker/compose/releases/download/1.24.1/docker-compose-Linux-x86_64

# 设置可执行权限
mv docker-compose /usr/local/bin/
chmod +x /usr/local/bin/docker-compose 

# 测试docker-composer
docker-compose -v

# 修改harbor.yaml以下三处
hostname: 192.168.12.11
certificate: /data/cert/192.168.12.11.crt
private_key: /data/cert/192.168.12.11.key

# 生成配置文件,其实就是导入压缩包内的镜像	# docker load < harbor.v2.1.0.tar.gz
./prepare 

# 清空相关容器
docker-compose down

# 安装并启动
./install.sh
# 耐心等待...
Creating network "harbor_harbor" with the default driver
Creating harbor-log ... done
Creating harbor-db     ... done
Creating harbor-portal ... done
Creating registry      ... done
Creating redis         ... done
Creating registryctl   ... done
Creating harbor-core   ... done
Creating nginx             ... done
Creating harbor-jobservice ... done
✔ ----Harbor has been installed and started successfully.----

访问ip测试:https://192.168.12.11
用户名:admin
密码  :Harbor12345

Devops-day6-Jenkins流水线容器化+Harbor私有仓库_第1张图片

3.测试Harbor

# 测试登录
docker login 192.168.12.11 --username=admin --password=Harbor12345

# 测试打包、推送到私有仓库
[root@k8s-master1 harbor]# docker pull nginx
[root@k8s-master1 harbor]# docker tag 62d49f9bab67 192.168.12.11/test/nginx:v1
[root@k8s-master1 harbor]# docker push 192.168.12.11/test/nginx:v1

# 拉取
[root@k8s-master1 harbor]# docker pull 192.168.12.11/test/nginx:v1

# k8s集群所有节点都必须给docker做证书认证
for i in n1 n2;
do
ssh $i "mkdir -pv /etc/docker/certs.d/192.169.12.11/"
scp 192.168.12.11.cert 192.168.12.11.key ca.crt root@$i:/etc/docker/certs.d/192.168.12.11/
ssh $i "systemctl restart docker"
done

Jenkins流水线实现容器化

最近我们构建和部署服务的方式与原来相比简直就是突飞猛进,像那种笨拙的、单一的、用于构建单体式应用程序的方式已经是过去式了。

现在的应用为了提供更好的拓展性和可维护性,都会去拆解成各种相互依赖小、解耦性强的微服务,这些服务有各自的依赖和进度。这跟我们的Kubernetes不谋而合。

我是将Harbor私有镜像仓库装在了k8s-master1上~

1.用JenKins连接K8S

1)创建admin-csr.json(kubernetes)

mkdir /opt/cert && cd /opt/cert

cat > admin-csr.json << EOF
{
    "CN":"admin",
    "key":{
        "algo":"rsa",
        "size":2048
    },
    "names":[
        {
            "C":"CN",
            "L":"BeiJing",
            "ST":"BeiJing",
            "O":"system:masters",
            "OU":"System"
        }
    ]
}
EOF

2)安装证书生成工具(kubernetes)

# 下载
wget https://pkg.cfssl.org/R1.2/cfssl_linux-amd64
wget https://pkg.cfssl.org/R1.2/cfssljson_linux-amd64

# 设置执行权限
chmod +x cfssljson_linux-amd64 cfssl_linux-amd64

# 移动到/usr/local/bin
mv cfssljson_linux-amd64 /usr/local/bin/cfssljson
mv cfssl_linux-amd64 /usr/local/bin/cfssl

3)创建证书私钥(kubernetes)

cfssl gencert -ca=/etc/kubernetes/pki/ca.crt -ca-key=/etc/kubernetes/pki/ca.key --profile=kubernetes admin-csr.json | cfssljson -bare admin

4)配置证书(kubernetes)

openssl pkcs12 -export -out ./jenkins-admin.pfx -inkey ./admin-key.pem -in ./admin.pem -passout pass:123456

5)配置jenkins链接k8s(Jenkins)

系统管理 ---> 系统配置 ---> cloud

Devops-day6-Jenkins流水线容器化+Harbor私有仓库_第2张图片

Devops-day6-Jenkins流水线容器化+Harbor私有仓库_第3张图片

Devops-day6-Jenkins流水线容器化+Harbor私有仓库_第4张图片

Devops-day6-Jenkins流水线容器化+Harbor私有仓库_第5张图片

1618890195569

Devops-day6-Jenkins流水线容器化+Harbor私有仓库_第6张图片

1618890455554

2.链接K8s测试

[root@k8s-master1 ~]# kubectl create secret generic kubeconfig --from-file=.kube/config 
secret/kubeconfig created
pipeline {
     
  agent {
     
    kubernetes{
     
      cloud "${
     KUBERNETES_NAME}"  #集群名字
      slaveConnectTimeout 1200  #连接超时时间
      yaml '''
apiVersion: v1
kind: pod  #metadata 流水线默认创建,此处不许设置
spec:
  containers:
    - name: jnlp
      image: jenkins/inbound-agent:4.7-1-jdk11
      args: [\'$(JENKINS_SECRET)\', \'$(JENKINS_NAME)\']
      imagePullPolicy: IfNotPresent  #镜像拉取策略:不存在则拉取
      volumeMounts:  #挂载时区,用一个系统时间
        - mountPath: "/etc/localtime"
          name: "volume-2"
          readOnly: false
    - name: docker  #与流水线中容器名称必须一致container(name: 'docker', shell: 'echo')
      image: docker:19.03.15-git  #docker容器镜像必须19版本
      imagePullPolicy: IfNotPresent
      tty: true
      volumeMounts:
        - mountPath: "/etc/localtime"
          name: "volume-2"
          readOnly: false
        - mountPath: "/var/run/docker.sock"  
          name: "volume-docker"
          readOnly: false
        - mountPath: "/etc/hosts"
          name: "volume-hosts"
          readOnly: false
    - name: kubectl  #与流水线中容器名称必须一致 container(name: 'kubectl', shell: 'echo')
      image: bitnami/kubectl:1.20.2  #kubectl版本要与k8s本版一致
      imagePullPolicy: IfNotPresent
      tty: true
      volumeMounts:
        - mountPath: "/etc/localtime"
          name: "volume-2"
          readOnly: false
        - mountPath: "/var/run/docker.sock"
          name: "volume-docker"
          readOnly: false
        - mountPath: "/root/.kube"
          name: "kubeconfig"
          readOnly: false
    - name: golang  #业务容器
      image: golang:1.16.3
      imagePullPolicy: IfNotPresent
      tty: true
      env:
        - name: "LANGUAGE"
          value: "en_US:en"
        - name: "LC_ALL"
          value: "en_US.UTF-8"
        - name: "LANG"
          value: "en_US.UTF-8"
      command:  #默认指令,不执行相当于占位符
        - "cat"
      volumeMounts:
        - mountPath: "/etc/localtime"
          name: "volume-2"
          readOnly: false
    - name: maven  #java所需容器镜像
      image: maven:3.6.3-openjdk-8
      tty: true
      command:
        - "cat"
      volumeMounts:
        - mountPath: "/etc/localtime"
          name: "volume-2"
          readOnly: false
        - mountPath: "/root/.m2/repository"
          name: "volume-maven-repo"
          readOnly: false
      env:
        - name: "LANGUAGE"
          value: "en_US:en"
        - name: "LC_ALL"
          value: "en_US.UTF-8"
        - name: "LANG"
          value: "en_US.UTF-8"
  volumes:
    - name: volume-maven-repo
      emptyDir: {
     }
    - name: volume-2
      hostPath:
        path: "/usr/share/zoneinfo/Asia/Shanghai"
    - name: kubeconfig
      secret:
        secretName: kubeconfig
        items:
          - key: config
            path: config
    - name: volume-docker
      hostPath:
        path: "/var/run/docker.sock"
    - name: volume-hosts
      hostPath:
        path: /etc/hosts


'''
    }
  }
  stages {
     
    stage('源代码管理') {
     
      parallel {
     
        stage('拉取代码') {
     
          steps {
     
            git(url: '${GIT_REPOSITORY_URL}', branch: '${GIT_TAG}', changelog: true, credentialsId: '${
     CREDENTIALS_ID}')
          }
        }

        stage('系统检查及初始化') {
     
          steps {
     
            sh """

            echo "Check Sysyem Env"

"""
          }
        }

      }
    }

    stage('编译及构建') {
     
      parallel {
     
        stage('编译代码') {
     
          steps {
     
            container(name: 'golang', shell: 'echo') {
     
              sh """

                go build main.go

"""
            }

          }
        }

        stage('初始化操作系统及kubernetes环境') {
     
          steps {
     
            script {
     
              CommitID = sh(returnStdout: true, script: "git log -n 1 --pretty=format:'%h'").trim()
              CommitMessage = sh(returnStdout: true, script: "git log -1 --pretty=format:'%h : %an  %s'").trim()
              def curDate = sh(script: "date '+%Y%m%d-%H%M%S'", returnStdout: true).trim()
              TAG = curDate[0..14] + "-" + CommitID + "-master"
            }
          }
        }

      }
    }

    stage('构建镜像及检查kubernetes环境') {
     
      parallel {
     
        stage('构建镜像') {
     
          steps {
     
            withCredentials([usernamePassword(credentialsId: '${DOCKER_REPOSITORY_CREDENTIAL_ID}', passwordVariable: 'PASSWORD', usernameVariable: 'USERNAME')]) {
     
              container(name: 'docker', shell: 'echo') {
     
                sh """
                  docker build -t ${
     HARBOR_HOST}/${
     NAMESPACE_NAME}/${
     REPOSITORY_NAME}:${
     TAG} .
                  docker login ${
     HARBOR_HOST} --username=${
     USERNAME} --password=${
     PASSWORD}
                  docker push ${
     HARBOR_HOST}/${
     NAMESPACE_NAME}/${
     REPOSITORY_NAME}:${
     TAG}
                """
              }
            }
          }
        }

        stage('Check Kubernetes ENV') {
     
          steps {
     
            container(name: 'kubectl', shell: 'echo') {
     
              sh 'sleep 10'
            }

          }
        }

      }
    }

    stage('Deploy Image to Kubernetes') {
     
      steps {
     
        container(name: 'kubectl', shell: 'echo') {
     
          sh 'sleep 10'
        }
      }
    }

    stage('Test Service') {
     
      steps {
     
        sh 'sleep 10'
      }
    }

    stage('Send Email to Admin') {
     
      steps {
     
        sh 'sleep 10'
      }
    }

  }
}

你可能感兴趣的:(Devops)