Housekeeping: Drop the concept of multiple arches.

.github/workflows/docker_build.yml

@@ -17,44 +17,30 @@ jobs:
       matrix:
         include:
           - context: "naev-artwork/blender2.79b"
-            arch: amd64
             imagename: "naev-artwork"
             blender: "blender2.79b"
           - context: "naev-docs"
-            arch: amd64
             imagename: "naev-docs"
           - context: "naev-release"
-            arch: amd64
             imagename: "naev-release"
           - context: "naev-steamruntime"
-            arch: amd64
             imagename: "naev-steamruntime"
           - context: "naev-windows"
-            arch: amd64
             imagename: "naev-windows"
           - context: "naev-macos"
-            arch: amd64
             imagename: "naev-macos"
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v3
       - name: Generate image metadata
         id: docker_meta
-        if: ${{ matrix.arch != 'aarch64' || matrix.imagename == 'naev-artwork' }}
+        if: ${{ matrix.imagename == 'naev-artwork' }}
         uses: docker/metadata-action@v4
         with:
           images: ghcr.io/naev/${{ matrix.imagename }}
           flavor: |
             latest=${{ inputs.publish }}
-      - name: Generate image metadata (aarch64)
-        id: docker_meta_aarch64
-        if: ${{ matrix.arch == 'aarch64' }}
-        uses: docker/metadata-action@v4
-        with:
-          images: ghcr.io/naev/${{ matrix.imagename }}
-          flavor: |
-            suffix=-${{ matrix.arch }},onlatest=true
       - name: Generate image metadata (artwork)
         id: docker_meta_artwork
         if: ${{ matrix.imagename == 'naev-artwork' }}
@@ -75,19 +61,9 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Build Image
         id: docker_build
-        if: ${{ matrix.arch != 'aarch64' }}
         uses: docker/build-push-action@v3
         with:
           context: ${{ matrix.context }}
-          file: "${{ matrix.context }}/Dockerfile.${{ matrix.arch }}"
+          file: "${{ matrix.context }}/Dockerfile"
           push: ${{ inputs.publish }}
           tags: ${{ steps.docker_meta.outputs.tags }}
-      - name: Build Image (aarch64)
-        id: docker_build_aarch64
-        if: ${{ matrix.arch == 'aarch64' }}
-        uses: docker/build-push-action@v3
-        with:
-          context: ${{ matrix.context }}
-          file: "${{ matrix.context }}/Dockerfile.${{ matrix.arch }}"
-          push: ${{ inputs.publish }}
-          tags: ${{ steps.docker_meta_aarch64.outputs.tags }}