New Filestructure for Docker

docker/node/Dockerfile

@@ -0,0 +1,23 @@
+FROM node:20-alpine
+
+WORKDIR /var/www/wkvs/websocket
+
+# Install pm2 globally
+RUN npm install -g pm2
+
+# Copy package files from the websocket folder
+COPY websocket/package*.json ./
+
+# Install dependencies strictly following lockfile
+RUN npm ci
+
+# Copy the rest of the application source code from websocket folder
+COPY websocket/ ./
+
+# Change ownership to the non-root node user for security
+RUN chown -R node:node /var/www/wkvs/websocket
+USER node
+
+EXPOSE 3000
+
+CMD ["pm2-runtime", "start", "index.js"]