Add publish workflow

.gitea/workflows/publish.yaml

@@ -0,0 +1,37 @@
+name: publish
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - master
+    tags:
+      - "v*"
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v6
+
+      - name: Construct image metadata from commit
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: gentoo/pkgdev-docker
+
+      - name: login to registry
+        uses: docker/login-action@v3
+        with:
+          registry: git.ratigorsk-12.ru
+          username: ${{github.actor}}
+          password: ${{secrets.GITEA_TOKEN}}
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: ${{github.event_name != 'pull_request'}}
+          tags: ${{steps.meta.outputs.tags}}
+          labels: ${{steps.meta.outputs.labels}}