I am trying to define some additional agents in my Jenkins instance (using Helm charts for “ease”) and the documentation is not well-defined.

I defined a pod in the values.yaml file of my Helm chart:

podTemplates:
    python: |
      - name: python
        label: jenkins-python
        serviceAccount: jenkins
        namespace: helm-agents
        containers:
          - name: python
            customJenkinsLabels: jenkins-python
            image: python:3
            command: "/bin/sh -c"
            args: "cat"
            ttyEnabled: true
            privileged: true
            resourceRequestCpu: "400m"
            resourceRequestMemory: "512Mi"
            resourceLimitCpu: "1"
            resourceLimitMemory: "1024Mi"

I can see the pod template in Manage Jenkins->Clouds->Kubernetes->Pod Templates
Then I defined an additional agent, which should use the pod:

additionalAgents:
  python:
    podName: python
    customJenkinsLabels: jenkins-python
    image: python
    tag: "3"
    TTYEnabled: true

I have gotten the following errors:
‘Jenkins’ doesn’t have label ‘jenkins-python’
or

11:17:48  Still waiting to schedule task
11:17:48  ‘python-x897h’ is offline

All while running the simplest of pipelines:

pipeline {
    agent { 
        node {
            label "jenkins-python"
        }
    }
    stages {
        stage ('agent-check') {
            steps {
                sh "cat /etc/*release"
                sh "which python"
            }
        }
    }
}

At this point, I have done so much tweaking that I have gotten a bit lost. I feel like I am missing something quite obvious.

I feel as if I am close to having this working properly OR I am in a completely different ballpark than where the problem exists.

Do the additional agents not use the pods designated in the podTemplates?