There is a requirement to Dockerize a Node app and to deploy the same on App Server 1. Under /node_app directory on App Server 1, we have already placed a package.json file that describes the app dependencies and server.js file that defines a web app framework.
Create a Dockerfile (name is case sensitive) under /node_app directory:
Use any node image as the base image. Install the dependencies using package.json file. Use server.js in the CMD. Expose port 8087.
The build image should be named as nautilus/node-web-app.
Now run a container named nodeapp_nautilus using this image.
Map the container port 8087 with the host port 8095.
. Once deployed, you can test the app using a curl command on App Server 1:
- Access App Server 1 via SSH
- Switch to root user:
sudo su - Create Dockerfile: Dockerfile
- Build image:
docker build -t nautilus/node-web-app . - Run the container:
docker run -p 8095:8087 --name nodeapp_nautilus -d nautilus/node-web-app - Check the result:
curl http://localhost:8095