Add gitea action to build image

.gitea/workflows/on-tag.yaml

@@ -0,0 +1,29 @@
+name: Build and push
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Log in to container registry
+        uses: docker/login-action@v2
+        with:
+          registry: git.clortox.com
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          push: true
+          tags: |
+            git.clortox.com/infrastructure/filebrowser:latest
+            git.clortox.com/infrastructure/filebrowser:${{ github.ref_name }}