improv(ci): Automate the layer version tracking during the Make Release workflow (#4355)

Co-authored-by: Andrea Amorosi <dreamorosi@gmail.com>

Author: sdangol

.github/scripts/update_layer_arn.sh

@@ -8,12 +8,13 @@
 # see .github/workflows/publish_layer.yml
 
 
-# Get the new version number from the first command-line argument
-new_version=$1
-if [ -z "$new_version" ]; then
-    echo "Usage: $0 <new_version>"
+# Get the new layer arn from the first command-line argument
+new_layer_arn=$1
+if [ -z "$new_layer_arn" ]; then
+    echo "Usage: $0 <new_layer_arn>"
     exit 1
 fi
+new_version=$(echo $new_layer_arn | sed 's/.*://')
 
 # Find all files with specified extensions in ./docs and ./examples directories
 # -type f: only find files (not directories)

.github/workflows/make-release.yml

@@ -17,13 +17,7 @@ name: Make Release
 # 4. Merge the PR created by the `publish_layer` workflow to update the documentation
 # 5. Update draft release notes with the latest changes and publish the release on GitHub
 
-on:
-  workflow_dispatch:
-    inputs:
-      layer_documentation_version:
-        description: "Lambda layer version to be updated in our documentation. e.g. if the current layer number is 3, this value must be 4."
-        type: string
-        required: true
+on: workflow_dispatch
 
 permissions:
   contents: read
@@ -105,5 +99,4 @@ jobs:
       pull-requests: write
     uses: ./.github/workflows/publish_layer.yml
     with:
-      latest_published_version: ${{ needs.publish-npm.outputs.RELEASE_VERSION }}
-      layer_documentation_version: ${{ inputs.layer_documentation_version }}
+      latest_published_version: ${{ needs.publish-npm.outputs.RELEASE_VERSION }}

.github/workflows/publish_layer.yml

@@ -11,9 +11,6 @@ on:
         description: "Latest npm published version to rebuild corresponding layer for, e.g. 1.0.2"
         default: "1.0.2"
         required: true
-      layer_documentation_version:
-        description: "Version to be updated in our documentation. e.g. if the current layer number is 3, this value must be 4."
-        required: true
 
   workflow_call:
     inputs:
@@ -26,10 +23,6 @@ on:
         default: false
         type: boolean
         required: false
-      layer_documentation_version:
-        description: "Version to be updated in our documentation. e.g. if the current layer number is 3, this value must be 4."
-        required: true
-        type: string
 
 jobs:
   # Build layer by running cdk synth in layer-publisher directory and uploading cdk.out for deployment
@@ -105,7 +98,7 @@ jobs:
           ref: ${{ github.sha }}
       - name: Replace layer versions in documentation
         run: |
-          ./.github/scripts/update_layer_arn.sh ${{ inputs.layer_documentation_version }}
+          ./.github/scripts/update_layer_arn.sh ${{ needs.deploy-prod.outputs.layer-arn }}
       - name: Stage changes
         run: git add .
       - name: Create PR

.github/workflows/reusable_deploy_layer_stack.yml

@@ -15,6 +15,10 @@ on:
         description: "Latest version that is published"
         required: true
         type: string
+    outputs:
+      layer-arn:
+        description: "The latest deployed Layer ARN"
+        value: ${{ jobs.deploy-cdk-stack.outputs.layer-arn }}
     secrets:
       target-account-role:
         required: true
@@ -65,6 +69,8 @@ jobs:
             "il-central-1",
             "mx-central-1"
           ]
+    outputs:
+      layer-arn: ${{ steps.store-latest-layer-arn.outputs.layer-arn }}
     steps:
       - name: checkout
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8  # v5.0.0
@@ -89,11 +95,16 @@ jobs:
       - name: Deploy Layer
         run: npm run cdk -w layers -- deploy --app cdk.out --context region=${{ matrix.region }} 'LayerPublisherStack' --require-approval never --verbose --outputs-file cdk-outputs.json
       - name: Store latest Layer ARN
+        id: store-latest-layer-arn
         if: ${{ inputs.stage == 'PROD' }}
         run: |
           mkdir cdk-layer-stack
           jq -r -c '.LayerPublisherStack.LatestLayerArn' layers/cdk-outputs.json > cdk-layer-stack/${{ matrix.region }}-layer-version.txt
-          cat cdk-layer-stack/${{ matrix.region }}-layer-version.txt
+          if [ "${{ matrix.region }}" = "us-east-1" ]; then
+            echo "layer-arn=$(cat cdk-layer-stack/${{ matrix.region }}-layer-version.txt)" | tee -a "$GITHUB_OUTPUT"
+          else
+            cat cdk-layer-stack/${{ matrix.region }}-layer-version.txt
+          fi
       - name: Save Layer ARN artifact
         if: ${{ inputs.stage == 'PROD' }}
         uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2