Jay Buffington created AURORA-657:
-------------------------------------

             Summary: Executor should expose thermos sandbox directory location 
configuration
                 Key: AURORA-657
                 URL: https://issues.apache.org/jira/browse/AURORA-657
             Project: Aurora
          Issue Type: Bug
            Reporter: Jay Buffington


Currently the aurora executor hardcodes the --sandbox value that it passes to 
thermos_runner when it execs it.  It always uses {{$(pwd)/sandbox}}

This is a problem with the docker containerizer changes I'm working on for 
AURORA-633.  The executor is getting started inside the docker container.  The 
working directory for the container is set when the image is built by setting 
{{WORKDIR}} in the Dockerfile.  It defaults to /

This means that the sandbox directory that the thermos runner creates is being 
created in {{/sandbox}}.  I want it to be created in 
{{$MESOS_SANDBOX/sandbox}}, and I don't want to override the {{WORKDIR}} the 
user set.

My suggestion is to add some configuration to aurora executor to control the 
value for --sandbox that is passed to thermos_runner.  How about an environment 
variable called {{AURORA_SANDBOX}}?



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