master-sidecar-3.yaml

kind: Template
apiVersion: template.openshift.io/v1

parameters:
- name: JOB_NAME_SAFE
  required: true
- name: IMAGE_CONTROL_PLANE
  required: true
- name: LOCAL_IMAGE_TEST_BIN
  required: true
- name: COMMAND
  required: true
- name: NAMESPACE
  required: true

objects:

# We want the cluster to be able to access these images
- kind: RoleBinding
  apiVersion: authorization.openshift.io/v1
  metadata:
    name: ${JOB_NAME_SAFE}-image-puller
    namespace: ${NAMESPACE}
  roleRef:
    name: system:image-puller
  subjects:
  - kind: SystemGroup
    name: system:unauthenticated
  - kind: SystemGroup
    name: system:authenticated

# The pod spins up a simple openshift control plane as a sidecar and waits for the
# COMMAND specified to the template to be executed, before itself exiting. The test
# container is given access to the generated config and the admin.kubeconfig.
- kind: Pod
  apiVersion: v1
  metadata:
    name: ${JOB_NAME_SAFE}
    namespace: ${NAMESPACE}
  spec:
    restartPolicy: Never
    activeDeadlineSeconds: 7200
    terminationGracePeriodSeconds: 600
    volumes:
    - name: artifacts
      emptyDir: {}
    - name: shared-tmp
      emptyDir: {}

    containers:

    # Once admin.kubeconfig exists, executes shared tests
    - name: test
      image: ${LOCAL_IMAGE_TEST_BIN}
      terminationMessagePolicy: FallbackToLogsOnError
      volumeMounts:
      - name: shared-tmp
        mountPath: /tmp/shared
      - name: artifacts
        mountPath: /tmp/artifacts
      command:
      - /bin/bash
      - -c
      - |
        #!/bin/bash
        set -euo pipefail

        trap 'touch /tmp/shared/exit' EXIT
        trap 'jobs -p | xargs -r kill || true; exit 0' TERM

        # wait until the master job creates admin.kubeconfig
        while true; do
          if [[ ! -f /tmp/shared/admin.kubeconfig ]]; then
            sleep 5 & wait
            continue
          fi
          break
        done
        echo "Found kubeconfig"
        export KUBECONFIG=/tmp/shared/admin.kubeconfig

        ${COMMAND}

    # Start a standalone master
    - name: control-plane
      image: ${IMAGE_CONTROL_PLANE}
      terminationMessagePolicy: FallbackToLogsOnError
      volumeMounts:
      - name: shared-tmp
        mountPath: /tmp/shared
      - name: artifacts
        mountPath: /tmp/artifacts
      env:
      - name: TYPE
        value: ${CLUSTER_TYPE}
      command:
      - /bin/bash
      - -c
      - |
        #!/bin/bash
        set -euo pipefail
        function teardown() {
          set +e
          echo "Gathering artifacts ..."
        }
        trap 'teardown' EXIT
        trap 'jobs -p | xargs -r kill || true; exit 0' TERM

        (
          while true; do
            if [[ -f /tmp/shared/exit ]]; then
              echo "Shutting down"
              kill 1
              exit 0
            fi
            sleep 5
          done
        ) &

        mkdir /tmp/cluster && cd /tmp/cluster
        openshift start master --write-config=/tmp/shared
        openshift start master --config=/tmp/shared/master-config.yaml &
        wait $!