Adding dockerfile and action

.gitea/workflows/build.yml

@@ -0,0 +1,22 @@
+name: "Build and push docker image"
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Login registry
+        uses: docker/login-action@v3
+        with:
+          registry: git.gliroid.com
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.TOKEN }}
+      - name: Build image
+        run: docker build -t git.gliroid.com/pupyrinth/chronolock-pack:latest
+      - name: Push image
+        run: docker push git.gliroid.com/pupyrinth/chronolock-pack:latest