How it works...

We saw that we can build the application manually, and we need an environment compatible for the build to take place, we also get the artifact. Here, the artifact is the .war file, in case of the Maven project, and the dist folder, in case of the NodeJS application. Later, we have to deploy that .war file or dist folder in the production environment and restart the servers to access the application. 

We have a lot of tools that provide the build environment, such as Jenkins, CircleCI, and AWS CodeBuild.