KubernetesExecutor: Cannot Pull Image, because Image ist ":"

[Kinchkun]

Hi,

today we upgraded Airflow v.1.10 to v2.0 and our kubernetes config doesn't work anymore.

We have the following pod file for kubernetes:

apiVersion: v1
kind: Pod
metadata:
  name: airflow-worker
spec:
  serviceAccountName: airflow-scheduler
  containers:
    - name: airflow-worker
      image: "host.docker.internal:5000/airflow:2"
      imagePullPolicy: Always
      ports:
        - containerPort: 6666
      env:
      # DB Settings

and we reference this file in the airflow.cfg:

[kubernetes]
# Path to the YAML pod file. If set, all other kubernetes-related fields are ignored.
pod_template_file = /opt/airflow/airflow-worker.yaml

This setup, worked fine in v1.10. In v2.0 when we execute a DAG the pod for the tasks cannot be created because of the following error:

 containerStatuses:
  - image: ':'
    imageID: ""
    lastState: {}
    name: base
    ready: false
    restartCount: 0
    started: false
    state:
      waiting:
        message: 'Failed to apply default image tag ":": couldn''t parse image reference
          ":": invalid reference format'
        reason: InvalidImageName

It seems that the image name from the pod yaml "host.docker.internal:5000/airflow:2" isn't used.

It is a local development setup with minikube and based on the docker image apache/airflow:master-python3.6.

Thank you.

[Kinchkun]

Hi,

I got this. I didn't notice that in v2.0 the image has to be configured in the airflow.cfg worker_container_repository and worker_container_tag.