Fix terraform docs (#43)

* Fix terraform docs

* Test change

* Test change

* Test

* Test

* Update terraform.yaml

* terraform-docs: automated action

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: int128

.github/workflows/terraform.yaml

@@ -18,3 +18,14 @@ jobs:
       - uses: actions/checkout@v2
       - uses: hashicorp/setup-terraform@v1
       - run: make
+
+  docs:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
+      - uses: terraform-docs/gh-actions@v1
+        with:
+          git-push: 'true'

Makefile

@@ -1,13 +1,6 @@
-all: check README.md
-
 .PHONY: check
 check:
 	terraform fmt -check=true -diff=true
 	terraform init
 	AWS_REGION=us-east-1 terraform validate
 	make -C example check
-
-README.md: variables.tf outputs.tf
-	sed -e '/^<!--terraform-docs-->/q' $@ > $@.tmp
-	terraform-docs md . >> $@.tmp
-	mv $@.tmp $@

README.md

@@ -150,7 +150,7 @@ Successfully moved 1 object(s).
 This is an open source software. Feel free to open issues and pull requests.
 
 
-<!--terraform-docs-->
+<!-- BEGIN_TF_DOCS -->
 ## Requirements
 
 No requirements.
@@ -159,7 +159,28 @@ No requirements.
 
 | Name | Version |
 |------|---------|
-| aws | n/a |
+| <a name="provider_aws"></a> [aws](#provider\_aws) | n/a |
+
+## Modules
+
+No modules.
+
+## Resources
+
+| Name | Type |
+|------|------|
+| [aws_autoscaling_group.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/autoscaling_group) | resource |
+| [aws_iam_instance_profile.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_instance_profile) | resource |
+| [aws_iam_role.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role) | resource |
+| [aws_iam_role_policy.eni](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role_policy) | resource |
+| [aws_iam_role_policy_attachment.ssm](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role_policy_attachment) | resource |
+| [aws_launch_template.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/launch_template) | resource |
+| [aws_network_interface.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/network_interface) | resource |
+| [aws_route.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/route) | resource |
+| [aws_security_group.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/security_group) | resource |
+| [aws_security_group_rule.egress](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/security_group_rule) | resource |
+| [aws_security_group_rule.ingress_any](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/security_group_rule) | resource |
+| [aws_ami.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ami) | data source |
 
 ## Inputs
 
@@ -188,3 +209,4 @@ No requirements.
 | <a name="output_eni_private_ip"></a> [eni\_private\_ip](#output\_eni\_private\_ip) | Private IP of the ENI for the NAT instance |
 | <a name="output_iam_role_name"></a> [iam\_role\_name](#output\_iam\_role\_name) | Name of the IAM role for the NAT instance |
 | <a name="output_sg_id"></a> [sg\_id](#output\_sg\_id) | ID of the security group of the NAT instance |
+<!-- END_TF_DOCS -->