Could we add support for bosh style --var-file=VAR=PATH to fly?

[haydonryan]

When injecting CA certs into bosh it's super useful to be able to do

     --var-file=VAR=PATH                            Set variable to file contents

I'd love it if fly also supported this to load CAs vs manually putting it into a yaml or doing some scripting fu.

[taylorsilva]

Is this ask for the fly execute command?

Assuming it is, there is the --load-vars-from flag where you can locally store the cert in a yaml file.

my_cert: |
  -----BEGIN CERTIFICATE-----
  ...
  -----END CERTIFICATE-----

In your task config reference ((my_cert)).

It would still be fine if someone wants to add --var-file to fly execute though. Having a flag like that saves you from doing the extra steps I just described.

[haydonryan]

no this is for set pipeline. using a --var-file means that you can just have the cert in pem format - you don't need to yamlize it

[taylorsilva]

Thanks for clarifying! I guess my answer doesn't change that much then since both execute and set-pipeline have similar flags. There's probably a bigger discussion around getting certs into containers. As you described, current solutions are rough (yaml + scripting fu).

[taylorsilva]

If someone wants to add --var-file to fly execute and fly set-pipeline, feel free to do so and submit a PR.

[haydonryan]

I'm happy to have a go but will be using codex since i"m no go expert. (Will ensure tests and code quality before PR)