how run dockerfile
# Use the official image as a parent image. FROM node:current-slim # Set the working directory. WORKDIR /usr/src/app # Copy the file from your host to your current location. COPY package.json . # Run the command inside your image filesystem. RUN npm install # Inform Docker that the container is listening on the specified port at runtime. EXPOSE 8080 # Run the specified command within the container. CMD [ "npm", "start" ] # Copy the rest of your app's source code from your host to your image filesystem. COPY . .