Allow specifying build platform for lambda deploy

Author: aplr

.github/workflows/deploy.yml

@@ -30,6 +30,10 @@ on:
         type: string
         description: "The build arguments to pass to the Docker build"
         required: false
+      build-platforms:
+        type: string
+        description: "The platforms to build the image for"
+        required: false
     secrets:
       aws-key-id:
         description: "The AWS access key ID"
@@ -70,7 +74,7 @@ jobs:
         run: |
           if [[ ! -f "config.json" ]]; then echo "Error: config.json not found."; exit 1; fi
 
-      - name: Parse config.json
+      - name: Read config.json
         id: config
         run: |
           echo 'config<<EOF' >> $GITHUB_OUTPUT
@@ -99,6 +103,7 @@ jobs:
       build-context: ${{ inputs.build-context }}
       build-target: ${{ inputs.build-target }}
       build-args: ${{ inputs.build-args }}
+      build-platforms: ${{ inputs.build-platforms }}
       build-push: ${{ github.event_name == 'workflow_dispatch' || (github.event_name == 'push' && github.ref_name == github.event.repository.default_branch) }}
     secrets:
       aws-key-id: ${{ secrets.aws-key-id }}

.github/workflows/lambda_build.yml

@@ -39,6 +39,10 @@ on:
         description: "Whether to push the image to the registry"
         required: false
         default: true
+      build-platforms:
+        type: string
+        description: "The platforms to build the image for"
+        required: false
     secrets:
       aws-key-id:
         description: "The AWS access key ID"
@@ -114,5 +118,6 @@ jobs:
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha
           cache-to: type=gha,mode=max,ignore-error=true
+          platforms: ${{ inputs.build-platforms }}
           build-args: ${{ inputs.build-args }}
           secrets: ${{ secrets.build-secrets }}