cli: Allow user to specify dest filename for nomad init

[angrycub]

This PR simplifies the user experience of using nomad init to create job skeletons by allowing them to specify the job file name as an optional positional argument to the command.

[notnoop]

I would suggest accepting as an option (e.g. nomad init -o example.nomad) rather than a positional argument, given that init already takes an option, --short.

[schmichael]

Since init always creates a file I think a positional argument is fine. It makes it nicely mirror nomad run which is the likely next command to be run:

nomad init foo.nomad
nomad run foo.nomad

-short and -connect modify the file, so I think flags are the right representation for them.

[shantanugadgil]

Just to "pile on" the enhancements ... how about an option for each of the type of tasks as well.

Most of the time I want to quickly experiment with raw_exec and have to gut and fillet the default docker job file. 🐟 😸

This is mostly due to the fact that the real "in-use" raw_exec files have moved on and now have way too much "sensitive" information! 😄

[schmichael]

Most of the time I want to quickly experiment with raw_exec and have to gut and fillet the default docker job file. fish smile_cat

This is mostly due to the fact that the real "in-use" raw_exec files have moved on and now have way too much "sensitive" information! smile
-- @shantanugadgil

Yes! I think a lot of us do that frequently, so the desire is definitely there. We've discussed making it templatable or maybe converting to HCLv2 could open up some options, but we've never landed on an exact approach. Mind opening a new issue with (1) your desired features and (2) any thoughts you on implementation?

[github-actions]

I'm going to lock this pull request because it has been closed for 120 days ⏳. This helps our maintainers find and focus on the active contributions.
If you have found a problem that seems related to this change, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.