We’re standing up an instance of Jenkins using Helm and ran across a technique for loading multiple containers we’d like to use. It is a simple matter of adding a YAML file that defines a pod instance with multiple containers:

apiVersion: v1
kind: Pod
spec:
  containers:
  - name: maven
    image: maven:3.8.1-jdk-8
    command:
    - sleep
    args:
    - 99d
  - name: python
    image: python:latest
    command:
    - sleep
    args:
    - 99d
  - name: node10jdk8
    image: ourartifacts.jfrog.io/docker-local/jenkins_remote_agent_node10_jdk8:v4
    command:
    - sleep
    args:
    - 99d
  - name: node10jdk11
    image: ourartifacts.jfrog.io/docker-local/jra_node10_jdk11:v1
    command:
    - sleep
    args:
    - 99d

This works – to a degree. The containers for Maven, Python, and Node10 (JDK8) are available but the pipeline fails because the Node 10 JDK11 seems to be improperly named. Here is the error:

ERROR: Unable to pull Docker image “ourartifacts.jfrog.io/docker-local/jra_node10_jdk11:v1”. Check if image tag name is spelled correctly.
15:47:01

I eliminated the other container images in this YAML file and left only the jra_node10_jdk11:v1 image and got the same error. Here is the pipeline stripped to its basics:

node {
    podTemplate(yaml: readFile('containers.yaml')) {
        node(POD_LABEL) {
            stage('Node 10 JDK 11') {
                container('node10jdk11') {
                    stage('Check Node') {
                        sh '''
                            node -v
                            npm -v
                            java -version
                            cat /etc/*release
                          '''
                    }
                }
            }
        }
    }
}

I also tested this with several other images on Artifactory and received the same error for those. This doesn’t make sense because the one image (node10jdk8) loads and works fine.

I have been hammering away at this since yesterday and have read many posts that don’t really provide any guidance.

Am I doing something wrong or missing something obvious?