Limit apk build to armeabi-v7a

Author: b3b

.github/workflows/build-apk-builder.yml

@@ -0,0 +1,47 @@
+name: Build APK Builder Image
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - "apk/**"
+    paths:
+      - "docker/apk-builder/Dockerfile"
+      - ".github/workflows/build-apk-builder.yml"
+
+permissions:
+  contents: read
+  packages: write
+
+env:
+  IMAGE_NAME: ghcr.io/${{ github.repository_owner }}/pythonhere-apk-builder
+
+jobs:
+  build:
+    name: Build APK builder image
+    runs-on: ubuntu-22.04
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: docker/apk-builder/Dockerfile
+          push: true
+          tags: |
+            ${{ env.IMAGE_NAME }}:latest
+            ${{ env.IMAGE_NAME }}:rust-1.83.0
+          cache-from: type=gha
+          cache-to: type=gha,mode=max