I'm trying to run automated tests in parallel on several devices using
Jenkins. There is the matrix plugin for the parallel execution. I have
several devices connected to the same agent and they have different
parameters. Let's say
- device1:
- port: /dev/ttyUSB1
- device2:
- port: /dev/ttyUSB2
Then in the pipeline I need to know this parameter "port". So I do next:
pipeline {
...
stages {
stage('Checkout') {...}
stage('Build') {...}
stage('Parallel') {
matrix {
axes {
name 'device_name'
values 'device1', 'device2'
}
}
stages {
stage('Flashing and testing') {
steps {
lock(resource: "${device_name}", variable: "${device}", quantity:
1)
echo "Device is ${device}"
...
}
}
}
}
}
}
With that device is defined correctly, but how can I access it's port
parameter? The documentation
<https://plugins.jenkins.io/lockable-resources/> does not describe the case
when there are several locks at the time. Though I can access the port with
device0_port seems like it is the global variable and it is the same for
all the parallel threads. I tried to call something like ${${device}0_port} but
could not realize what should it be.
As a workaround I tried to move the parameters into the pipeline like
if ("${device}" == 'device1') {
port = "/dev/ttyUSB1"
}
if ("${device}" == 'device2') {
port = "/dev/ttyUSB2"
}
It does exactly what I need, but I suspect it is not the way it is supposed
to be.
So, my questions:
1. Can lockable resources plugin work with matrix? Are there
alternatives?
2. Should I report the bug about the variable scope?
3. Is there a way to evaluate a variable name from the other variable?
4. Other suggestions on making this code prettier?
Thank you in advance,
Nick
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