For this recipe, we need a specific version of postgres. It is not mandatory for you to download and install the postgres version that will be used. The reason is that, some developers might have an already configured postgres database version with data, and having multiple servers running within a computer might cause issues later.
To overcome this problem, we will make use of a docker container. A container could be defined as a lightweight instantiation of a software application that is isolated from other containers and your computer host. Similar to a virtual machine, you could have multiple versions of your software stored inside your host, and start multiple containers whenever necessary.
First, we will download docker ...
