feat: multi platform container build

.github/workflows/deploy-beta.yml

@@ -17,6 +17,9 @@ jobs:
         with:
           submodules: true
       - uses: docker/setup-buildx-action@v1
+        id: buildx
+        with:
+          platforms: linux/amd64,linux/arm64
       - name: Login to container registry
         uses: docker/login-action@v2
         with:
@@ -31,6 +34,8 @@ jobs:
           push: true
           cache-from: type=gha
           cache-to: type=gha,mode=max
+          builder: ${{ steps.buildx.outputs.name }}
+          platforms: ${{ steps.buildx.outputs.platforms }}
           build-args: |
             API_ENDPOINT=${{ secrets.STAGING_API_ENDPOINT }}
             OPENGRAPH_ENDPOINT=${{ secrets.STAGING_OPENGRAPH_ENDPOINT }}

.github/workflows/deploy-staging.yml

@@ -17,6 +17,10 @@ jobs:
         with:
           submodules: true
       - uses: docker/setup-buildx-action@v1
+        id: buildx
+        with:
+          platforms: linux/amd64,linux/arm64
+
       - name: Login to container registry
         uses: docker/login-action@v2
         with:
@@ -29,6 +33,8 @@ jobs:
           context: .
           tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:staging
           push: true
+          builder: ${{ steps.buildx.outputs.name }}
+          platforms: ${{ steps.buildx.outputs.platforms }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
           build-args: |

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:18-alpine AS builder
+FROM --platform=$BUILDPLATFORM node:18-alpine AS builder
 
 RUN mkdir -p /app