一、Pipeline語句
Jenkinsfile (Declarative Pipeline)
pipeline {
agent {docker 'maven:3-alpine'}
stages {
stage('Example Build') {
steps {
sh 'mvn -v'
}
}
}
}二、Pipeline執行結果
Running in Durability level: MAX_SURVIVABILITY
[Pipeline] Start of Pipeline
[Pipeline] node
Running on Jenkins in /var/lib/jenkins/workspace/pipeline-docker-job
[Pipeline] {
[Pipeline] sh
+ docker inspect -f . maven:3-alpine
Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.40/containers/maven:3-alpine/json: dial unix /var/run/docker.sock: connect: permission denied
[Pipeline] sh
+ docker pull maven:3-alpine
Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.40/images/create?fromImage=maven&tag=3-alpine: dial unix /var/run/docker.sock: connect: permission denied
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
ERROR: script returned exit code 1
Finished: FAILURE三、解決方法
出現“Got permission denied”報錯，主要是權限問題，jenkins pipeline是在master上執行的，Jenkins是由jenkins用戶啓動的，但是jenkins用戶沒有執行docker的權限，所以導致以上報錯，所以我們的解決方法如下：
# usermod -a -G docker jenkins # systemctl restart jenkins
僅僅將jenkins用戶加入docker組還不夠，必須要重啓Jenkins纔可以生效！