test: lint tf files

.devcontainer/Dockerfile

@@ -19,6 +19,9 @@ RUN SYSTEM_ARCH=$(dpkg --print-architecture) \
     && terraform version \
     && rm terraform_${TERRAFORM_VERSION}_linux_${SYSTEM_ARCH}.zip
 
+# install tflint
+RUN curl -s https://raw.githubusercontent.com/terraform-linters/tflint/master/install_linux.sh | bash
+
 # install docker
 COPY --from=docker:dind /usr/local/bin/docker /usr/local/bin/
 

.github/workflows/test.yml

@@ -0,0 +1,21 @@
+name: test
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v3
+      - name: Terraform Setup
+        run: |
+          terraform init
+      - name: Lint Terraform
+        uses: reviewdog/action-tflint@master
+        with:
+          github_token: ${{ secrets.github_token }}
+          filter_mode: "nofilter"

main.tf

@@ -428,11 +428,6 @@ resource "aws_s3_object" "image_files" {
 
 # =================================================================== lookup ===
 
-data "aws_ssm_parameter" "amzn2_image_id" {
-  count = module.teleport_cluster_label.enabled ? 1 : 0
-  name  = "/aws/service/ami-amazon-linux-latest/amzn2-ami-hvm-x86_64-ebs"
-}
-
 data "aws_ami" "official_image" {
   count = module.teleport_cluster_label.enabled ? 1 : 0
 

version.tf

@@ -6,5 +6,9 @@ terraform {
       source  = "hashicorp/aws"
       version = ">= 5.0.0, < 6.0.0"
     }
+    random = {
+      source  = "hashicorp/random"
+      version = ">= 3.0.0"
+    }
   }
 }