From 143ced11acf3ca282a45aa385288a50fb918280f Mon Sep 17 00:00:00 2001
From: Audun Nes <aunes@dfds.com>
Date: Mon, 11 Mar 2024 14:33:40 +0100
Subject: [PATCH] Add template for terragrunt

---
 tools/scaffolding/scripts/entrypoint.sh       | 14 ++++++++++++-
 tools/scaffolding/templates/env.hcl.template  | 21 +++++++++++++++++++
 .../templates/terragrunt-root.hcl.template    | 10 +++++++++
 .../templates/terragrunt.hcl.template         | 17 +++++++++++++++
 4 files changed, 61 insertions(+), 1 deletion(-)
 create mode 100644 tools/scaffolding/templates/env.hcl.template
 create mode 100644 tools/scaffolding/templates/terragrunt-root.hcl.template
 create mode 100644 tools/scaffolding/templates/terragrunt.hcl.template

diff --git a/tools/scaffolding/scripts/entrypoint.sh b/tools/scaffolding/scripts/entrypoint.sh
index bde17f9..80bb8cd 100755
--- a/tools/scaffolding/scripts/entrypoint.sh
+++ b/tools/scaffolding/scripts/entrypoint.sh
@@ -17,6 +17,13 @@ tf_module_output="/output/terraform/module.tf"
 tf_output_folders="/output/terraform"
 mkdir -p $tf_output_folders
 
+# TERRAGRUNT
+tg_root_template="/templates/terragrunt-root.hcl.template"
+tg_env_template="/templates/env.hcl.template"
+tg_local_template="/templates/terragrunt.hcl.template"
+tg_output_folders="/output/terragrunt"
+mkdir -p $tg_output_folders/test/database
+
 # DOCKER
 docker_compose_template="/templates/compose.yml.template"
 docker_compose_output="/output/docker/compose.yml"
@@ -53,4 +60,9 @@ python3 $scripts_path/generate_docker.py --docker-compose-template $docker_compo
 # TODO: generate pipeline
 
 # 5) Generate documentation
-terraform-docs markdown --show "inputs" $source_module_path --output-file $documentation_output
\ No newline at end of file
+terraform-docs markdown --show "inputs" $source_module_path --output-file $documentation_output
+
+# 6) Generate terragrunt files
+python3 $scripts_path/generate_tf_module.py --source-tf-doc $source_json_doc --temp-work-folder $generated_tf_module_data --tf-module-template $tg_local_template --tf-output-path $tg_output_folders/test/database/terragrunt.hcl
+cp $tg_root_template $tg_output_folders/terragrunt.hcl
+cp $tg_env_template $tg_output_folders/test/env.hcl
diff --git a/tools/scaffolding/templates/env.hcl.template b/tools/scaffolding/templates/env.hcl.template
new file mode 100644
index 0000000..fe21bb4
--- /dev/null
+++ b/tools/scaffolding/templates/env.hcl.template
@@ -0,0 +1,21 @@
+inputs = {
+    #     Specify the staging environment.
+    #     Valid Values: "dev", "test", "staging", "uat", "training", "prod".
+    #     Notes: The value will set configuration defaults according to DFDS policies.
+    environment = "test"
+
+    #     Provide a cost centre for the resource.
+    #     Valid Values: .
+    #     Notes: This set the dfds.cost_centre tag. See recommendations [here](https://wiki.dfds.cloud/en/playbooks/standards/tagging_policy).
+    cost_centre = "example"
+}
+
+generate "provider" {
+  path = "provider.tf"
+  if_exists = "overwrite_terragrunt"
+  contents = <<EOF
+provider "aws" {
+  region = "eu-central-1"
+}
+EOF
+}
diff --git a/tools/scaffolding/templates/terragrunt-root.hcl.template b/tools/scaffolding/templates/terragrunt-root.hcl.template
new file mode 100644
index 0000000..dc5109e
--- /dev/null
+++ b/tools/scaffolding/templates/terragrunt-root.hcl.template
@@ -0,0 +1,10 @@
+remote_state {
+  backend = "s3"
+  config {
+    bucket         = "<your_bucket_name>-state-bucket"
+    encrypt        = true
+    key            = "${path_relative_to_include()}/terraform.tfstate"
+    region         = "eu-central-1"
+    dynamodb_table = "terraform-locks"
+  }
+}
diff --git a/tools/scaffolding/templates/terragrunt.hcl.template b/tools/scaffolding/templates/terragrunt.hcl.template
new file mode 100644
index 0000000..59b501d
--- /dev/null
+++ b/tools/scaffolding/templates/terragrunt.hcl.template
@@ -0,0 +1,17 @@
+terraform {
+  source = "git::https://github.com/dfds/terraform-aws-rds.git//?ref=$release"
+}
+
+# Include all settings from the parent terragrunt.hcl file
+include "root" {
+  path = find_in_parent_folders()
+}
+
+# Include env.hcl for environment specific settings
+include "env" {
+  path = find_in_parent_folders("env.hcl")
+}
+
+inputs = {
+$inputs
+}