[jira] [Created] (AIRFLOW-839) docker_operator.py attempts to log status key without first checking existence

["Mike Perry (JIRA)" <ji...@apache.org>]

Mike Perry created AIRFLOW-839:
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             Summary: docker_operator.py attempts to log status key without first checking existence
                 Key: AIRFLOW-839
                 URL: https://issues.apache.org/jira/browse/AIRFLOW-839
             Project: Apache Airflow
          Issue Type: Bug
          Components: docker
    Affects Versions: Airflow 1.7.1
         Environment: arch linux
python 2.7 and python 3
            Reporter: Mike Perry
            Assignee: Mike Perry
            Priority: Trivial


When pulling a docker image, docker_operator.py attempts to log the `status` key each time it gets output. This is usually fine, but occasionaly no `status` key exists. We've seen this happen when we run out of inode space in our cluster and the docker cli is unable to extract the image. This is consistent with the docker HTTP api docs (https://docs.docker.com/engine/api/v1.24/#create-an-image). If an error occurs, there won't be a `status` key. There will be an `error` key. 

This is a relatively minor bug, but it obscures the real issue and can sometimes make it difficult to figure out what went wrong. 



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