未找到kubernetes jenkins docker命令

Question

使用helm安装了Jenkins

helm install --name jenkins -f values.yaml stable/jenkins

已安装Jenkins插件

- kubernetes:1.12.6
- workflow-job:2.31
- workflow-aggregator:2.5
- credentials-binding:1.16
- git:3.9.3
- docker:1.1.6

定义了Jenkins管道来构建docker容器

node {
    checkout scm

    def customImage = docker.build("my-image:${env.BUILD_ID}")

    customImage.inside {
        sh 'make test'
    }
}

抛出错误:找不到docker

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Answer 1

看起来你只安装了插件，而没有安装包。有两种可能性。

1. 配置插件以使用Jenkins安装包。

- Go to Manage Jenkins
- Global Tools Configuration
- Docker -> Fill name (eg: Docker-latest)
- Check on install automatically and then add installer (Download from [here](https://www.docker.com/)).

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- Then save

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1. 如果您的计算机上已安装，请将Jenkins中的PATH变量更新为Docker.

Answer 2

您可以在管道中定义具有所需工具(docker、Maven、Helm等)的容器的agent pod：

首先，使用以下值创建agentpod.yaml：

apiVersion: v1

kind: Pod

metadata:

  labels:

    some-label: pod

spec:

  containers:

    - name: maven

      image: maven:3.3.9-jdk-8-alpine

      command:

        - cat

      tty: true

      volumeMounts:

        - name: m2

          mountPath: /root/.m2

    - name: docker

      image: docker:19.03

      command:

        - cat

      tty: true

      privileged: true

      volumeMounts:

        - name: dockersock

          mountPath: /var/run/docker.sock

  volumes:

    - name: dockersock

      hostPath:

        path: /var/run/docker.sock

    - name: m2

      hostPath:

        path: /root/.m2

然后将管道配置为：

pipeline {
    agent {
        kubernetes {
            defaultContainer 'jnlp'
            yamlFile 'agentpod.yaml'
        }
    }
    stages {
        stage('Build') {
            steps {
                container('maven') {
                    sh 'mvn package'
                }
            }
        }
        stage('Docker Build') {
            steps {
                container('docker') {
                    sh "docker build -t dockerimage ."
                }
            }
        }
    }
}