ci: Add caching for terraform initialization.

Author: jamesiarmes

.github/actions/setup-opentofu/action.yaml

@@ -8,6 +8,13 @@ inputs:
 runs:
   using: composite
   steps:
+    - name: Cache OpenTofu
+      uses: actions/cache@v4
+      with:
+        path: ./tofu/config/${{ inputs.config }}/.terraform
+        key: ${{ runner.os }}-tofu-${{ hashFiles('./tofu/config/${{ inputs.config }}/.terraform.lock.hcl') }}
+        restore-keys: |
+          ${{ runner.os }}-tofu-
     - name: Setup OpenTofu
       uses: opentofu/setup-opentofu@v1
       with:

tofu/config/service/.terraform.lock.hcl

@@ -9,6 +9,12 @@ resource "docker_image" "container" {
       "${local.prefix}:${var.image_tag}",
       "${module.ecr.repository_url}:${var.image_tag}"
     ]
+
+    auth_config {
+      host_name  = data.aws_ecr_authorization_token.token.proxy_endpoint
+      password = data.aws_ecr_authorization_token.token.password
+      user_name = data.aws_ecr_authorization_token.token.user_name
+    }
   }
 
   triggers = {
@@ -28,8 +34,8 @@ resource "docker_registry_image" "container" {
 
   auth_config {
     address  = data.aws_ecr_authorization_token.token.proxy_endpoint
-    username = data.aws_ecr_authorization_token.token.user_name
     password = data.aws_ecr_authorization_token.token.password
+    username = data.aws_ecr_authorization_token.token.user_name
   }
 
   triggers = {

tofu/modules/ephemeral_service/docker.tf

@@ -9,7 +9,7 @@ terraform {
 
     docker = {
       source  = "kreuzwerker/docker"
-      version = "~> 3.6"
+      version = "~> 3.7"
     }
   }
 }