Use stash in Jenkins pipeline without node

jenkins jenkins-pipeline jenkins-slave
Bernhard picture Bernhard · Nov 15, 2016 · Viewed 11.9k times · Source

I have a Jenkins pipeline looking like this

stage 'build app'
build 'app-build'
stash 'app-stash'

stage 'build container'
unstash 'app-stash'
build 'container-build'

The builds app-build and container-build obtain new nodes from our Kubernetes system.

With stash I want to transfer the artifacts from app-build to container-build.

However when running this pipeline the following error occurs:

[Pipeline] stash
Required context class hudson.FilePath is missing
Perhaps you forgot to surround the code with a step that provides this, such as: node
[Pipeline] End of Pipeline
org.jenkinsci.plugins.workflow.steps.MissingContextVariableException: Required context class hudson.FilePath is missing
    at org.jenkinsci.plugins.workflow.steps.StepDescriptor.checkContextAvailability(StepDescriptor.java:254)
    at org.jenkinsci.plugins.workflow.cps.DSL.invokeStep(DSL.java:179)

I don't want to use node in my pipeline since I only have one executor on my nodes. Is it possible to use stash without the node directive?

Answer

Joerg S picture Joerg S · Jan 17, 2017

Using build you're building an external job. However you cannot use 'stash' to copy things from one job to another.

You either need to archive artifacts inside 'app-build' and copy them using the aritfact copy plugin, or you have to move the content from 'app-build' into the pipeline itself. When doing that you'll have the node context required for the stash.

Btw.: Unstash needs a node context as well as it want to copy the files somewhere.

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