Jenkins CD VM部署實踐 02 根據版本檔案下載下傳制品

CD在早些團隊裡面，如果沒有使用自動化的時候，開發給包給到運維，運維将包拷貝到伺服器上面之後，通過一些腳本将包啟動。

CD

之前CI将版本檔案上傳到了gitlab，現在要将這個版本檔案下載下傳下來，因為這裡面存儲着要釋出的包的名稱，是以CD流水線有兩個步驟，一個是下載下傳制品，另外一個步驟就是釋出制品。

要從Gitlab裡面去下載下傳這個版本檔案

添加選項參數：針對于不同的環境，選擇要釋出的環境

釋出的主機

def projectId = 17
def filePath = "myapp/release-${params.releaseVersion}.yaml"
def branchName = "main"



pipeline {
    agent any

    stages {
        stage('Hello') {
            steps {
                script{
                    response = GetRepoFile(projectId,"myapp%2frelease-1.1.1.yaml",branchName)
                    println(response)
                }
            }
        }
    }
}


// 封裝HTTP
def HttpReq(reqType, reqUrl,reqBody ){
            def gitServer = "http://139.198.166.235:81/api/v4"
            withCredentials([string(credentialsId: 'ecbcd399-da69-4802-8760-87a1c1ff58a1', variable: 'GITLABTOKEN')]) {
                response = httpRequest acceptType: 'APPLICATION_JSON_UTF8', 
                                consoleLogResponseBody: true, 
                                contentType: 'APPLICATION_JSON_UTF8', 
                                customHeaders: [[maskValue: false, name: 'PRIVATE-TOKEN', value: "${GITLABTOKEN}"]], 
                                httpMode: "${reqType}", 
                                url: "${gitServer}/${reqUrl}", 
                                wrapAsMultipart: false,
                                requestBody: "${reqBody}"
 
    }
    return response
}
 
 
//擷取檔案内容
def GetRepoFile(projectId,filePath, branchName ){
   //GET /projects/:id/repository/files/:file_path/raw
   apiUrl = "/projects/${projectId}/repository/files/${filePath}/raw?ref=${branchName}"
   response = HttpReq('GET', apiUrl, "")
 
   return response.content
 
}      

"myapp%2frelease-1.1.1.yaml" 這裡有個轉義符代表/，如果定義為變量就這樣寫：def filePath = "myapp%2frelease-1.1.1.yaml"    或者def filePath = "myapp%2frelease-${params.releaseVersion}.yaml"

  可以看到上面擷取到了制品資訊，現在就是去下載下傳制品了

def projectId = 17
def filePath = "myapp%2frelease-${params.releaseVersion}.yaml"
def branchName = "main"



pipeline {
  agent {
     label 'build'
  }

    stages {
        stage('GetArtifactUrl') {
            steps {
                script{
                    response = GetRepoFile(projectId,filePath,branchName)
                    //println(response)

                    yamlData = readYaml text: """${response}"""
                    env.artifactUrl = yamlData.artifact
                    println(env.artifactUrl)
                }
            }
        }
        stage('DownloadArtifact') {
            steps {
                script{
                   withCredentials([usernamePassword(credentialsId: 'ff93f4bf-9d8c-4fc2-bccd-3e614f10d643', 
                   passwordVariable: 'passwd', 
                   usernameVariable: 'user')]) {
                       sh """
                          wget --http-user=${user} --http-passwd=${passwd} ${env.artifactUrl}
                         """
                  }
                }
            }
        }
    }
}


// 封裝HTTP
def HttpReq(reqType, reqUrl,reqBody ){
            def gitServer = "http://139.198.166.235:81/api/v4"
            withCredentials([string(credentialsId: 'ecbcd399-da69-4802-8760-87a1c1ff58a1', variable: 'GITLABTOKEN')]) {
                response = httpRequest acceptType: 'APPLICATION_JSON_UTF8', 
                                consoleLogResponseBody: true, 
                                contentType: 'APPLICATION_JSON_UTF8', 
                                customHeaders: [[maskValue: false, name: 'PRIVATE-TOKEN', value: "${GITLABTOKEN}"]], 
                                httpMode: "${reqType}", 
                                url: "${gitServer}/${reqUrl}", 
                                wrapAsMultipart: false,
                                requestBody: "${reqBody}"
 
    }
    return response
}
 
 
//擷取檔案内容
def GetRepoFile(projectId,filePath, branchName ){
   //GET /projects/:id/repository/files/:file_path/raw
   apiUrl = "/projects/${projectId}/repository/files/${filePath}/raw?ref=${branchName}"
   response = HttpReq('GET', apiUrl, "")
 
   return response.content
 
}      

[root@jenkins-agent workspace]# cd nexus/
[root@jenkins-agent nexus]# ls
nexus-api-test      nexus-chajian-download      nexus-chajian-upload      nexus-deploy-mvn  release-file@tmp  test@tmp
nexus-api-test@tmp  nexus-chajian-download@tmp  nexus-chajian-upload@tmp  release-file      test
[root@jenkins-agent nexus]# cd test
[root@jenkins-agent test]# ls
acmp-myapp-service-1.1.1.jar      

制品拿到之後就是釋出了

前端項目編譯完之後是一個靜态的資源檔案，是一個壓縮包，相對于拷貝到nginx伺服器的站點目錄下面，然後解壓就ok了。後端項目就有一個腳本專門啟動，後端項目需要寫服務啟動腳本。

post {
        always{
            script {
                cleanWs()
            }
        }
    }