Specify envvars for docker driver

[apognu]

Is there any way to specify environment variables to be sent with the creation of a Docker container? According to the doc, it's not.

I know I can add items to the meta specification directive, and it will, as a result, add envvar to my running container, unfortunately those are prefixed with NOMAD_META_, and developing my application to use those does not seem very agnostic.

Any plans to add an option to specify those?

Regards,

[dimfeld]

If you need this right away, a quick-and-dirty solution would be to change SetMeta in /client/driver/environment/vars.go to not add the prefix. That said, official support for this would be great.

[dimfeld]

@hashicorp-team Not sure if this is on your roadmap but I'd be glad to work on it in my free time over the next few weeks and submit a PR. Seems like it's just a matter of adding another map to the Task structure (named env or environment, perhaps?) and associated code for parsing from HCL and applying the settings. Any thoughts?

[apognu]

I was starting to read the code to do exactly that myself.

[dimfeld]

Feel free to take it on if you'd like, but either way is fine with me so long as we don't do duplicate work :)

[apognu]

Yeah, almost got something ready to PR, should be ready tonight or tomorrow morning.

[dimfeld]

👍 Cool, sounds great!

[ghost]

+1 This is critical for pretty much any 12 factor app

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