enable multiarch

.gitea/workflows/build.yml

@@ -55,6 +55,11 @@ jobs:
     - run: echo REPO_COMMIT_FULL=$(git --git-dir '.git' --no-pager log --pretty='%H' -n1 HEAD) >> $GITHUB_ENV
     - run: echo BUILD_TAG=$(date -d @${REPO_TIMESTAMP} +%y.%m)-${REPO_COMMIT} >> $GITHUB_ENV
 
+    - run: apk add --no-cache docker-cli
+
+    - name: setup qemu
+      uses: https://github.com/docker/setup-qemu-action@v2
+
     - name: setup buildx
       uses: https://github.com/docker/setup-buildx-action@v2
 
@@ -72,6 +77,7 @@ jobs:
       uses: https://github.com/docker/build-push-action@v4
       with:
         push: ${{ !!secrets.REGISTRY_PUSH_ENABLED }}
+        platforms: linux/amd64
         context: .docker/web-nginx
         tags: |
           registry-rw.fakecake.org/cthulhoo/ttrss-web-nginx:latest
@@ -82,6 +88,7 @@ jobs:
       uses: https://github.com/docker/build-push-action@v4
       with:
         push: ${{ !!secrets.REGISTRY_PUSH_ENABLED }}
+        platforms: linux/amd64
         context: .docker/app
         build-contexts:
           app-src=.
@@ -105,6 +112,7 @@ jobs:
       uses: https://github.com/docker/build-push-action@v4
       with:
         push: ${{ !!secrets.REGISTRY_GITHUB_PUSH_ENABLED }}
+        platforms: linux/amd64,linux/arm64,linux/arm/v7
         context: .docker/web-nginx
         tags: |
           cthulhoo/ttrss-web-nginx:latest
@@ -115,6 +123,7 @@ jobs:
       uses: https://github.com/docker/build-push-action@v4
       with:
         push: ${{ !!secrets.REGISTRY_GITHUB_PUSH_ENABLED }}
+        platforms: linux/amd64,linux/arm64,linux/arm/v7
         context: .docker/app
         build-contexts:
           app-src=.