Formalize GitHub configurations for pathogen repos

[joverlee521]

Context

Prompted by nextstrain/yellow-fever#7 (comment) and nextstrain/rabies#2 (comment).

Description

We should decide on a default set of GitHub configs that can be formalized in Terraform and applied across pathogen repos that we track in infra. We already add GitHub topic labels through Terraform, seems like a good place to add other configs.

Decide on default configs

Refer to available github_repository arguments.

• delete_branch_on_merge
• others?

[victorlin]

Another one I can think of is labels (mentioned by @tsibley). Both that and "automatically delete head branches" seem applicable to not just pathogen repos but all repos under @nextstrain. Is there a simple way to specify all repos instead of listing every single repo in locals.tf?

[joverlee521]

Ah, thanks! I vaguely remember this coming up before but couldn't find the thread.

At least github_issue_labels looks like a resource that applied across the entire GitHub organization.

From what I can see, the github_repository resource is only applied per repo...

[tsibley]

Is there a simple way to specify all repos instead of listing every single repo in locals.tf?

You bring in the repos dynamically as a Terraform data source, e.g. here with github_repositories

data "github_repositories" "nextstrain" {
  query = "org:nextstrain"
}

and then apply the per-repo resource (e.g. github_issue_labels) over that dynamic list, e.g.

resource "github_issue_labels" "nextstrain" {
  for_each = data.github_repositories.nextstrain.full_names
  repository = each.key
  …
}

A similar pattern is already used for getting the existing topics for repos in local.pathogen_repos.

[tsibley]

At least github_issue_labels looks like a resource that applied across the entire GitHub organization.

It's per-repo, see the arguments and the required repository arg.

[joverlee521]

Ah, thanks for the tip + correction @tsibley! So seems pretty do-able!