add dockerfile

.gitea/workflows/docker.yaml

@@ -0,0 +1,19 @@
+name: Build AirSignal Docker image
+
+on:
+  push:
+    branches: [master]
+
+jobs:
+  build-docker:
+    runs-on: self-hosted
+    steps:
+      - uses: actions/checkout@v4
+      - name: Login to container registry
+        run: echo ${{ secrets.CONTAINER_REGISTRY_TOKEN }} | docker login -u ${{ secrets.CONTAINER_REGISTRY_USER }} http://gitea:3000
+      - name: Build Docker image
+        run: docker build . --file Dockerfile --tag christoph/airsignal:latest
+      - name: Push Docker image
+        run: docker push christoph/airsignal:latest
+
+    

Dockerfile

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+# Using official node image as a parent image
+FROM public.ecr.aws/docker/library/node:20-alpine3.18
+
+# Create working directory
+RUN mkdir /app
+
+# Setting the working directory to /app
+WORKDIR /app
+
+# Copy the current directory contents into the container at /app
+COPY . /app
+
+# Install AirSignal dependencies
+RUN npm install
+
+# AirSignal port
+EXPOSE 12776
+
+# Run AirSignal when the container launches
+CMD ["node", "server.js"]