feat: add basic CI

.github/workflows/terraform.yml

@@ -0,0 +1,25 @@
+name: Terraform
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ${{ matrix.path }}
+    strategy:
+      matrix:
+        path: [".", "examples/nat-gateway"]
+    steps:
+      - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+
+      - uses: hashicorp/setup-terraform@b9cd54a3c349d3f38e8881555d616ced269862dd # v3.1.2
+
+      - run: terraform fmt -check -recursive
+      - run: terraform init -backend=false
+      - run: terraform validate

examples/nat-gateway/dummy.pub

@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILMZ+zJ1L8a7gYJb2dsFmEDxcRXgV3Tqj5WoAB4nZ9rb dummy@example.com

examples/nat-gateway/main.tf

@@ -1,12 +1,12 @@
 # Change these to match your environment
 locals {
   location       = "East US"
-  admin_ssh_key  = file("~/.ssh/id_rsa.azure.pub")
+  admin_ssh_key  = file("./dummy.pub")
   firezone_token = "YOUR_FIREZONE_TOKEN"
 }
 
 module "gateway" {
-  source = "firezone/gateway/azurerm"
+  source = "../../" # Replace with `firezone/gateway/azurerm`
 
   ###################
   # Required inputs #