docker_linux.yml: Use docker actions to build docker.

Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>

.github/workflows/docker_linux.yml

@@ -39,25 +39,32 @@ jobs:
   push:
     runs-on: ubuntu-latest
     env:
-      DOCKER_BUILDKIT: 1
       IMAGE_TAG: ghcr.io/${{ github.repository }}/apache-nuttx-ci-linux
     steps:
-      - uses: actions/checkout@v2
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
 
       - name: Log into registry
-        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build Linux image
-        run: |
-          echo "Building Linux Image using cache from $IMAGE_TAG"
+        uses: docker/build-push-action@v2
+        with:
+          context: tools/ci/docker/linux
+          load: true
+          tags: ${{ env.IMAGE_TAG }}
 
-          docker build \
-            --build-arg BUILDKIT_INLINE_CACHE=1 \
-            --cache-from $IMAGE_TAG \
-            --tag $IMAGE_TAG \
-            -f ./tools/ci/docker/linux/Dockerfile ./tools/ci/docker/
-        
       - name: Push Linux image
-        if: (github.event_name == 'push') && (github.ref == 'refs/heads/master')
-        run: |
-          docker push $IMAGE_TAG
+        uses: docker/build-push-action@v2
+        with:
+          context: tools/ci/docker/linux
+          platforms: linux/amd64
+          push: ${{ github.ref == 'refs/heads/master' }}
+          tags: ${{ env.IMAGE_TAG }}