[jira] [Created] (AIRFLOW-1381) DockerOperator does not allow specification of temporary directory on host

["Benjamin Sims (JIRA)" <ji...@apache.org>]

Benjamin Sims created AIRFLOW-1381:
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             Summary: DockerOperator does not allow specification of temporary directory on host
                 Key: AIRFLOW-1381
                 URL: https://issues.apache.org/jira/browse/AIRFLOW-1381
             Project: Apache Airflow
          Issue Type: Improvement
          Components: docker, operators
    Affects Versions: 1.9.0
         Environment: Causes failure under default conditions in OS X
            Reporter: Benjamin Sims
            Priority: Minor


The Docker uses the standard TemporaryDirectory mechanism to add a volume to the container which is mapped to a temporary directory on the host. 

By default, TemporaryDirectory places this in a location such as /var/folders/xxx/xxxxx/T/airflowtmpyi9pnn6w. 

However, Docker on OS X only allows certain folders to be shared into a container. /var/folders is not shared on OS X (and cannot be shared) and the operator will therefore fail with a 'Mounts denied' message.

This can be solved by setting the environment variable TMPDIR to a path which Docker is able to share. However a solution to set this in the Operator itself would also be useful.



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