feat: Add repo config file generator (#1)

* feat: Add repo config file generator

* feat: Add support for terragrunt atlantis config hook

* feat: Add yaml output and terragrunt workflows

* chore: reformat loop blocks and update example readme file

Author: jakubigla

.gitignore

@@ -29,3 +29,7 @@ override.tf.json
 # Include override files you do wish to add to version control using negated pattern
 #
 # !example_override.tf
+
+# Include tfplan files to ignore the plan output of command: terraform plan -out=tfplan
+# example: *tfplan*
+*tfplan*

README.md

@@ -0,0 +1,30 @@
+workflows:
+  terraform-basic:
+    plan:
+      steps:
+        - run: terraform init
+        - run: terraform plan -no-color -input=false -out $PLANFILE
+    apply:
+      steps:
+        - run: terraform apply -no-color -input=false -compact-warnings -auto-approve $PLANFILE
+
+  terragrunt-basic:
+    plan:
+      steps:
+        - run: terragrunt fmt -no-color -check=true -diff=true -write=false
+        - run: terragrunt hclfmt --terragrunt-check
+        - run: terragrunt plan -no-color -out $PLANFILE
+    apply:
+      steps:
+        - run: terragrunt apply -no-color -input=false -compact-warnings -auto-approve $PLANFILE
+
+  terragrunt-basic-with-asdf:
+    plan:
+      steps:
+        - run: asdf install
+        - run: terragrunt fmt -no-color -check=true -diff=true -write=false
+        - run: terragrunt hclfmt --terragrunt-check
+        - run: terragrunt plan -no-color -out $PLANFILE
+    apply:
+      steps:
+        - run: terragrunt apply -no-color -input=false -compact-warnings -auto-approve $PLANFILE

config/workflows.yaml

@@ -0,0 +1 @@
+repo_config.yaml

context.tf

@@ -0,0 +1,11 @@
+init:
+	terraform init
+
+plan:
+	terraform plan -out tfplan
+
+apply:
+	terraform apply tfplan
+
+destroy:
+	terraform destroy

examples/complete/.gitignore

@@ -0,0 +1,60 @@
+# Complete Example
+
+```terraform
+module "repo_config" {
+  source = "../../"
+
+  repos = [
+    {
+      id       = "github.com/getindata/foo"
+      workflow = "terraform-basic"
+    },
+    {
+      id                = "github.com/getindata/bar"
+      workflow          = "terraform-basic-with-fmt"
+      allowed_overrides = ["delete_source_branch_on_merge"]
+    },
+    {
+      id                              = "github.com/getindata/baz"
+      allowed_overrides               = ["workflow", "delete_source_branch_on_merge"]
+      allow_custom_workflows          = true
+      allow_all_server_side_workflows = true
+
+      terragrunt_atlantis_config = {
+        enabled  = true
+        autoplan = true
+      }
+    }
+  ]
+
+  repos_common_config = {
+    apply_requirements = ["approved", "mergeable"]
+    branch             = "main"
+  }
+
+  workflows = {
+    terraform-basic-with-fmt = {
+      plan = {
+        steps = [
+          {
+            run = "terraform fmt -no-color -check=true -diff=true -write=false"
+          },
+          {
+            run = "terraform plan -no-color -input=false -out $PLANFILE"
+          }
+        ]
+      }
+    }
+  }
+
+  repo_config_file_generation_enabled = true
+}
+```
+
+## Usage
+Run the commands from below:
+```
+terraform init
+terraform plan -out tf.plan
+terraform apply tf.plan
+```