feat: add build workflow for PR builds

.github/workflows/build.yml

@@ -0,0 +1,65 @@
+name: Build
+
+on:
+  pull_request:
+    branches: ["main"]
+
+permissions:
+  id-token: write
+  contents: read
+
+env:
+  REVISION: gh-pr-3.0.${{github.run_number}}
+
+jobs:
+  build:
+    runs-on: runs-on=${{ github.run_id }}/runner=16cpu-linux-arm64
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Setup AWS Creds
+      if: ${{ secrets.AWS_ACCOUNT_ID != '' }}
+      uses: aws-actions/configure-aws-credentials@v2
+      with:
+        role-to-assume: arn:aws:iam::${{ secrets.AWS_ACCOUNT_ID }}:role/GHActionsCodeartifactReadonly
+        aws-region: us-east-1
+
+    - name: Login to ECR
+      if: ${{ secrets.AWS_ACCOUNT_ID != '' }}
+      run: |
+        aws ecr get-login-password --region us-east-1 | docker login --username AWS --password-stdin ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.us-east-1.amazonaws.com
+
+    - name: Build and push to ECR
+      if: ${{ secrets.AWS_ACCOUNT_ID != '' }}
+      run: |
+        docker buildx build --platform linux/amd64,linux/arm64 \
+          -t ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.us-east-1.amazonaws.com/transpiler:${{ env.REVISION }} \
+          --network host --push .
+
+    - name: Authenticate to GCP
+      if: ${{ secrets.GCR_PUSH_SA != '' }}
+      uses: google-github-actions/auth@v2
+      with:
+        credentials_json: ${{ secrets.GCR_PUSH_SA }}
+
+    - name: Login to GCR and push
+      if: ${{ secrets.GCR_PUSH_SA != '' && vars.GCR_PROJECT_ID != '' }}
+      run: |
+        echo '${{ secrets.GCR_PUSH_SA }}' | docker login -u _json_key --password-stdin us-docker.pkg.dev
+        docker buildx build --platform linux/amd64,linux/arm64 \
+          -t us-docker.pkg.dev/${{ vars.GCR_PROJECT_ID }}/e6-engine/transpiler:${{ env.REVISION }} \
+          --network host --push .
+
+    - name: docker ACR login and push
+      run: |
+        echo ${{ secrets.ACR_TOKEN }} | docker login --username e6data-ci --password-stdin e6labs.azurecr.io
+        docker buildx build --no-cache --platform linux/amd64,linux/arm64 \
+          -t e6labs.azurecr.io/transpiler:${{ env.REVISION }} \
+          -t e6labs.azurecr.io/transpiler-dev:${{ env.REVISION }} \
+          --network host --push .