Copying files between jenkins slaves In pipeline - jenkins

Question

Our goal is to divide our pipeline with multiple agents.
We have a slave called slave1, that has a sole purpose of checkout out on git,
and building executables.
Eventually when slave1 finishes, we'd like to pass it's output to slave2,
which has a sole purpose of testing slave1's executable.
Please notice that the idea here is not to split jobs, but achieving the
files in the same pipeline.
Heres an example of a Jenkinsfile that'll make more sense:
pipeline
{
agent
{
label 'slave1'
}
stages
{
stage("Initialize & Build")
{
steps
{
script
{
println("Im starting the pipeline with slave1!")
// Builds Files
// ....
// Has many files that needs to pass to slave2
}
}
}
stage("Execute & Test")
{
agent
{
label 'slave2'
}
steps
{
script
{
println("Im in the new slave - slave2!")
// How does this slave get the files?
}
}
}
}
}
How is it possible to pass these files between the agents?
I read about artifacts, but it seems like it's goal is to return the objects from a job, this isn't necessarily what is needed.

Answer 1

If both of your agents are on linux servers, you can simply scp the build output of agent 1 to agent 2.
Also, first you will need to establish passwordless SSH connection between these 2 agents.
Here's an example.
pipeline
{
agent
{
label 'slave1'
}
stages
{
stage("Initialize & Build")
{
steps
{
script
{
println("Im starting the pipeline with slave1!")
// Builds Files
// ....
// option 1: copy files in the workspace of agent 2.
scp $WORKSPACE/build_output/* <user>#agent2:/home/<user>/workspace/<job_name>/
// option 2: copy files to any known location of agent 2
scp $WORKSPACE/build_output/* <user>#agent2:/<destination_path>
}
}
}
stage("Execute & Test")
{
agent
{
label 'slave2'
}
steps
{
script
{
println("Im in the new slave - slave2!")
//option 1
dir($WORKSPACE) {
// Test execution steps
}
// option 2
dir(<destination_path>) {
// Test execution steps
}
}
}
}
}
}