Containers issue with Jenkins plugin for Kubernetes

Question

I'm using kubernetes plugin in jenkins. I'm trying to use it with Pipeline and Freestyle jobs. The jobs are running, but only in container with name jnlp-slave:3.35-5-alpine which I did't define anywhere.

Even if define the image in the pipeline nothing happanig and still running in this jnlp-slave:3.35-5-alpine image. Here is example of my pipeline:

pipeline {
    agent none
    stages {
        stage ('Stage as dsl') {
            agent {
                kubernetes {
                    cloud 'kubernetes'
                    label 'jnlp-slave'
                    containerTemplate {
                        name 'jnlp-slave'
                        image 'jnlp-slave'
                    }
                }
            }
            steps {
                sh '''
                    pwd; \
                    whoami; \
                    uname -a
                '''
            }
        }
    }
}

Where is my mistake?

Answer 1

The solution that I find is to NOT define any label for the cluster.

In my jenkinsfile example I'm testing to use diffrend docker images like this:

Working Solution

def podTemplate = """
apiVersion: v1
kind: Pod
spec:
  containers:
  - name: java-slave
    image: myrepo/java-slave:latest
    command:
    - sleep
    args:
    - infinity
  - name: jenkins-slave-dind
    image: myrepo/jenkins-slave-dind:latest
    command:
    - sleep
    args:
    - infinity
    volumeMounts:
    - name: dockersock
      mountPath: /var/run/docker.sock
  volumes:
  - name: dockersock
    hostPath:
      path: /var/run/docker.sock
"""
pipeline {
    agent {
        kubernetes {
            yaml podTemplate
            defaultContainer 'java-slave'
        }
    }
    stages {
        stage('Main') {
            steps {
                sh 'curl google.com'
            }
        }
        stage ('Stage as dsl 4'){
            steps {
                container('jenkins-slave-dind') {
                    sh '''
                        docker ps -a
                    '''
                }
            }
        }
    }
}