update build-image.yaml

Author: eksrha

.github/workflows/build-image.yaml

@@ -1,5 +1,8 @@
 name: Build docker Image
 
+env:
+  IMAGE_PLATFORMS: linux/386,linux/amd64,linux/arm64,linux/arm/v7,linux/ppc64le
+
 on:
   workflow_dispatch:
   push:
@@ -42,7 +45,7 @@ jobs:
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v1
         with:
-          platforms: all
+          platforms: ${{ env.IMAGE_PLATFORMS }}
       - name: Set up Docker Buildx
         id: buildx
         uses: docker/setup-buildx-action@v1
@@ -52,8 +55,8 @@ jobs:
         with:
           builder: ${{ steps.buildx.outputs.name }}
           context: ./docker-image/
-          platforms: linux/386,linux/amd64,linux/arm64,linux/arm/v7,linux/ppc64le
+          platforms: ${{ env.IMAGE_PLATFORMS }}
           push: true
           tags: |
-            ghcr.io/${GITHUB_REPOSITORY}:latest
-            ghcr.io/${GITHUB_REPOSITORY}:${{needs.generate_tag.outputs.output}}
+            ghcr.io/${{ env.GITHUB_REPOSITORY }}:latest
+            ghcr.io/${{ env.GITHUB_REPOSITORY }}:${{ needs.generate_tag.outputs.output }}