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terragrunt-module-ref

Move every Terragrunt and Terraform stack to the shared modules v2.0.0.

Uses: terragrunt.set_source_ref, terragrunt.sources

Start a campaign from it, then point it at your organization:

gh fleet init --from terragrunt-module-ref --org your-org

Campaign

load("@fleet//terragrunt.star", "set_source_ref", "sources")

def change(repo):
    old = sorted(set([s["ref"] for s in sources(repo) if s["source"].startswith(env["SOURCE"].rstrip("*"))]))
    repo.set_var("previous", ", ".join(old))
    set_source_ref(repo, env["SOURCE"], env["REF"])

# yaml-language-server: $schema=https://raw.githubusercontent.com/rossedman/gh-fleet/main/internal/campaign/campaign.schema.json
apiVersion: fleet.gh/v1
name: modules-v2
description: Move every Terragrunt and Terraform stack to the shared modules v2.0.0

targets:
  orgs: [acme]
  include:
    search: "acme/terraform-modules ref="

change:
  steps:
    # Sets `?ref=` on every module source from the shared modules repo, in
    # terragrunt.hcl and .tf files alike. Sources pinned to a commit SHA, and
    # the .terragrunt-cache and .terraform directories, are left alone.
    - name: terragrunt-module-ref
      starlark: ./change.star
      timeout: 1m
  env:
    SOURCE: "git::https://github.com/acme/terraform-modules.git//*"
    REF: v2.0.0

pr:
  title: "build(deps): terraform modules v2.0.0"
  body: |
    Moves {{ .Repo.Name }} to acme/terraform-modules v2.0.0. Review the plan
    before merging.

    Opened by the `{{ .Campaign.Name }}` campaign with [gh fleet](https://github.com/rossedman/gh-fleet).
  labels: [fleet, dependencies]
  draft: true

Source on GitHub