Container flaps between 'Staging' and 'Running' => can't download a package about deimos HOT 4 OPEN

I found the cause for this behaviour. This flapping happens when artifacts or executables inside docker containers are not referenced by their full path name. Because deimos adds the -w /tmp/mesos-sandbox switch for the working directory in Docker, all paths are off...

Not sure if this is a bug or just something people should be aware of.

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This is similar to #49

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I'm just not sure what the right thing to do is. Deimos puts URLs from the Mesos task in a directory which it mounts at /tmp/mesos-sandbox so tasks can find the downloaded contents. It seems reasonable to set the working directory to that directory, too, so that frameworks which are unaware of Docker will still find the URLs they expect.

There is a patch under #49 to acknowledge the WORKDIR directive but I do wonder if there is a better policy in general.

Having Deimos dump the URLs in the "right place" could perhaps be accomplished by:

• Downloading the files
• Building a new image that inherits from the original one, using RUN to copy the downloaded files to .
• Running the new image

Hopefully ENTRYPOINT and CMD and all that would be preserved in the new image.

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I see the problem. I guess if everyone is fully aware that this is happening, there is not a big problem. Making your paths and urls fully qualified isn't always a nice way of handling things, but there are ways around it and in the end it's not a biggie.

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