Merge pull request #168 from aligent/feature/DO-2031_support_cdk_arm64_build

Feature/do 2031 support cdk arm64 build

Author: crispy101

.github/workflows/aws-cdk.yml

@@ -72,6 +72,11 @@ on:
         type: boolean
         required: false
         default: false
+      runs-on:
+        description: "GitHub runner to use (e.g. ubuntu-latest, ubuntu-24.04-arm for ARM64 builds)"
+        type: string
+        required: false
+        default: "ubuntu-latest"
 
       # Custom CDK Commands
       bootstrap-command:
@@ -106,7 +111,7 @@ on:
 jobs:
   prepare:
     name: 🔍 Prepare CDK Deployment
-    runs-on: ubuntu-latest
+    runs-on: ${{ inputs.runs-on }}
     environment: ${{ inputs.github-environment }}
     outputs:
       node-version: ${{ steps.node-version.outputs.version }}
@@ -407,7 +412,7 @@ jobs:
 
   cdk:
     name: ☁️ CDK Operations
-    runs-on: ubuntu-latest
+    runs-on: ${{ inputs.runs-on }}
     needs: [prepare]
     permissions:
       id-token: write

docs/aws-cdk.md

@@ -10,6 +10,7 @@ A streamlined AWS CDK workflow supporting multi-environment infrastructure synth
 - **PR diff comments**: When running a diff on a pull request, the result is posted (or updated) as a PR comment
 - **Smart Node.js setup**: Automatic detection from .nvmrc file with dependency caching
 - **Package manager detection**: Automatic support for npm, yarn (classic/berry), and pnpm
+- **Cross-platform Docker builds**: ARM64 container support via native ARM runners
 - **Debug support**: Verbose logging and debug output for troubleshooting
 - **GitHub Environments support**: Credentials and stack names can be configured per-environment via GitHub Environment variables/secrets 
 
@@ -32,6 +33,7 @@ A streamlined AWS CDK workflow supporting multi-environment infrastructure synth
 | extra-arguments | ❌ | string |  | Extra arguments as string |
 | debug | ❌ | boolean | false | Enable verbose logging and debug output |
 | lfs | ❌ | boolean | false | Enable Git LFS support for checkout |
+| runs-on | ❌ | string | ubuntu-latest | GitHub runner (use `ubuntu-24.04-arm` for native ARM64 builds) |
 | **Custom CDK Commands** |
 | bootstrap-command | ❌ | string | npx cdk bootstrap | Custom bootstrap command |
 | synth-command | ❌ | string | npx cdk synth | Custom synth command |