Initial actions workflow (#1)

Reviewed-on: #1

.forgejo/workflows/build.yaml

@@ -0,0 +1,47 @@
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - v[0-9]*
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build_and_test:
+    runs_on: docker
+    steps:
+      - name: Checkout
+        uses: https://code.forgejo.org/actions/checkout@v3
+      - name: Set up Docker Buildx
+        uses: https://github.com/docker/setup-buildx-action@v2.10.0
+        with:
+          endpoint: tcp://192.168.0.5:2375
+      - name: Docker metadata
+        id: meta
+        uses: https://github.com/docker/metadata-action@v4.6.0
+        with:
+          images: name/app
+        tags: |
+          type=ref,event=branch
+          type=ref,event=pr
+          type=semver,pattern={{version}}
+          type=semver,pattern={{major}}.{{minor}}
+      - name: Login to DockerHub
+        if: github.event_name != 'pull_request'
+        uses: https://github.com/docker/login-action@v2.2.0
+        with:
+          registry: code.jhot.me
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+      - name: Build and push
+        uses: docker/build-push-action@v4.2.1
+        with:
+          context: .
+          platforms:
+            - linux/amd64
+            - linux/arm64
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}