Allow configuring custom releasesURL

[cullenmcdermott]

Some environments do not have access to releases.hashicorp.com. It would be nice to be able to specify a custom url so that Atlantis would be able to pull from internal mirrors.

atlantis/server/events/terraform/terraform_client.go

Line 81 in 2f54257

releasesURL = "https://releases.hashicorp.com"

[lkysow]

Sure, maybe --tf-download-url? PRs welcome!

Also note that you can put the binaries by name into the Atlantis path and it won't need to download anything, ex. terraform0.11.9

[cullenmcdermott]

Yeah that flag sounds good.

Also note that you can put the binaries by name into the Atlantis path and it won't need to download anything, ex. terraform0.11.9

So something like /usr/bin/terraform0.11.9?

[lkysow]

Yes