jenkins kubernetes-plugin archive/junit - jenkins

Question

I have a multi-container job which runs on k8s via kubernetes-jenkins plugin. everything works great but I am unable to junit or archiveArtifacts anything. I suspect it's because it exists only in the container but not sure. code is below:
def label = "foo-${UUID.randomUUID().toString()}"
podTemplate(
label: label,
containers: [
containerTemplate(name: 'c1', image: 'c1'),
containerTemplate(name: 'c2', image: 'c2'),
containerTemplate(name: 'c3', image: 'c3'),
],
volumes: [
hostPathVolume(mountPath: '/var/run/docker.sock', hostPath: '/var/run/docker.sock'),
],
) {
node(label) {
stage('test') {
container('c1') {
sh """
cd /some-path
./generate-junit-xml
"""
archiveArtifacts allowEmptyArchive: true, artifacts: '/some-path/foo.xml'
sh "cat /some-path/foo.xml"
}
}
}
}
def label = "foo-${UUID.randomUUID().toString()}"
podTemplate(
label: label,
namespace: 'jenkins',
imagePullSecrets: [ 'myreg' ],
containers: [
containerTemplate(name: 'c1', image: 'c1'),
containerTemplate(name: 'c2', image: 'c2'),
containerTemplate(name: 'c3', image: 'c3'),
],
volumes: [
hostPathVolume(mountPath: '/var/run/docker.sock', hostPath: '/var/run/docker.sock'),
],
) {
node(label) {
stage('test') {
container('c1') {
sh """
./something-that-generates-junit-foo-xml
"""
archiveArtifacts allowEmptyArchive: true, artifacts: '/abs/path/to/foo.xml'
sh "cat /abs/path/to/foo.xml"
}
}
}
}
build log shows the following output:
[Pipeline] archiveArtifacts
Archiving artifacts
WARN: No artifacts found that match the file pattern "/some-path/foo.xml". Configuration error?
[Pipeline] sh
[test-pipeline] Running shell script
+ cat /some-path/unittest.xml
<?xml version="1.0" encoding="utf-8"?>...</xml>
would appreciate your help!

Answer 1

both junit and archiveArtifacts can only archive files that are inside WORKSPACE, containers do not shave any volumes with host (where jenkins WORKSPACE is) unless you explicitly do so
I solved this with:
- adding additional volume where I save files
hostPathVolume(hostPath: '/tmp', mountPath: '/tmp')
- copying files from tmp to WORKSPACE with File Operations Plugin
dir("/tmp/screenshots") {
fileOperations([fileCopyOperation(excludes: '', flattenFiles: true, includes: '*.png', targetLocation: "${WORKSPACE}/screenshots")])
}
- archiving artifacts
archiveArtifacts allowEmptyArchive: true, artifacts: 'screenshots/**/*.png'

Answer 2

copying the artifacts to the Jenkins workspace will solve it
age('test') {
container('c1') {
sh """
./something-that-generates-junit-foo-xml
"""
sh 'cp /abs/path/to/foo.xml ${WORKSPACE}/abs/foo.xml'
archiveArtifacts allowEmptyArchive: true, artifacts: 'abs/foo.xml'
sh "cat /abs/path/to/foo.xml"
}
you can copy the dir if you need all the dir content
sh 'cp -r /abs/path/to/ ${WORKSPACE}/abs/to'
archiveArtifacts allowEmptyArchive: true, artifacts: 'abs/to/*.xml'