Build ARM64 and ARMv7 images along side AMD64 images (x86)

Author: WyriHaximus

.github/workflows/ci.yml

@@ -3,6 +3,7 @@ env:
   DOCKER_IMAGE: wyrihaximusnet/php
   DOCKER_BUILDKIT: 1
   DOCKER_IMAGE_REGISTRIES_SECRET_MAPPING: '{"ghcr.io":"GHCR_TOKEN","docker.io":"HUB_PASSCODE"}'
+  DOCKER_CLI_EXPERIMENTAL: enabled
 on:
   push:
     branches:
@@ -129,6 +130,12 @@ jobs:
         image: ${{ fromJson(needs.image-matrix.outputs.image) }}
     steps:
       - uses: actions/checkout@v2
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: crazy-max/ghaction-docker-buildx@v3
+        with:
+          buildx-version: latest
+          qemu-version: latest
       - run: mkdir ./docker-image/
       - run: ./build-php.sh $(echo "${{ matrix.image }}" | tr '-' ' ')
       - run: cat ./docker-image/image.tags | xargs -I % docker inspect --format='%={{.Id}}:{{index .Config.Env 7}}' %

build-php.sh

@@ -44,10 +44,19 @@ declare -a target=(
   "-slim-dev-root"
 )
 
+declare -a arch=(
+  "linux/amd64"
+  "linux/arm64"
+  "linux/arm/v7"
+)
+
 docker pull "php:${IMAGE_TAG}"
 
 for buildTarget in "${target[@]}"
 do
-  sed -E "s/${IMAGE_ORIGINAL_TAG}/${IMAGE_TAG}/g" "Dockerfile-${DST_IMAGE}-${OS}" | docker build --label org.label-schema.build-date=`date -u +"%Y-%m-%dT%H:%M:%SZ"` --label org.label-schema.vcs-ref=`git rev-parse --short HEAD` -t "${WYRIHAXIMUSNET_TAG}${buildTarget}" --target="${DST_IMAGE}${buildTarget}" -f - .
+  for buildArch in "${arch[@]}"
+  do
+    sed -E "s/${IMAGE_ORIGINAL_TAG}/${IMAGE_TAG}/g" "Dockerfile-${DST_IMAGE}-${OS}" | docker buildx build --platform "${buildArch}" --output "type=docker"  --label org.label-schema.build-date=`date -u +"%Y-%m-%dT%H:%M:%SZ"` --label org.label-schema.vcs-ref=`git rev-parse --short HEAD` -t "${WYRIHAXIMUSNET_TAG}${buildTarget}" --target="${DST_IMAGE}${buildTarget}" -f - .
+  done
   echo "${WYRIHAXIMUSNET_TAG}${buildTarget}" >> "$TAG_FILE"
 done