Using Jenkins Declarative Pipeline , one can easily specify a Dockerfile, agent label, build args and run args as follows:
Jenkinsfile (Declarative Pipeline)
agent {
dockerfile {
dir './path/to/dockerfile'
label 'my-label'
additionalBuildArgs '--build-arg version=1.0'
args '-v /tmp:/tmp'
}
}
I am trying to achieve the same using the scripted pipeline syntax. I found a way to pass the agent label and run args, but was unable to to pass the directory and build args . Ideally, I would write something like this (label and run args are already working):
Jenkinsfile (Scripted Pipeline)
node ("my-label"){
docker.dockerfile(
dir: './path/to/dockerfile',
additionalBuildArgs:'--build-arg version=1.0'
).inside('-v /tmp:/tmp') {
\\ add stages here
}
}
The documentation shows how this can be done using an existing docker image, ie, with the image
directive in the pipeline.
Jenkinsfile (Declarative Pipeline)
pipeline {
agent {
docker { image 'node:7-alpine' }
}
stage('Test') {
//...
}
}
Jenkinsfile (Scripted Pipeline)
node {
docker.image('node:7-alpine').inside {
stage('Test') {
//...
}
}
}
However, the scripted pipeline syntax for the dockerfile
directive is missing. The workaround I am using at the moment is building the image myself.
node ("my-label"){
def testImage = docker.build(
"test-image",
"./path/to/dockerfile",
"--build-arg v1.0"
)
testImage.inside('-v /tmp:/tmp') {
sh 'echo test'
}
}
Any help is much appreciated!
I personally put the docker cli arguments before the image folder path and would specify the docker filename with -f argument
Apart from that, you are doing this the right way. agent dockerfile is building a docker image the same way docker.build
step is doing. Except you can push your image to a registry by using the docker.build
step
Here is I how do
def dockerImage
//jenkins needs entrypoint of the image to be empty
def runArgs = '--entrypoint \'\''
pipeline {
agent {
label 'linux_x64'
}
options {
buildDiscarder(logRotator(numToKeepStr: '100', artifactNumToKeepStr: '20'))
timestamps()
}
stages {
stage('Build') {
options { timeout(time: 30, unit: 'MINUTES') }
steps {
script {
def commit = checkout scm
// we set BRANCH_NAME to make when { branch } syntax work without multibranch job
env.BRANCH_NAME = commit.GIT_BRANCH.replace('origin/', '')
dockerImage = docker.build("myImage:${env.BUILD_ID}",
"--label \"GIT_COMMIT=${env.GIT_COMMIT}\""
+ " --build-arg MY_ARG=myArg"
+ " ."
)
}
}
}
stage('Push to docker repository') {
when { branch 'master' }
options { timeout(time: 5, unit: 'MINUTES') }
steps {
lock("${JOB_NAME}-Push") {
script {
docker.withRegistry('https://myrepo:5000', 'docker_registry') {
dockerImage.push('latest')
}
}
milestone 30
}
}
}
}
}
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