Docker is a new way to use virtual machines (someone expert that read this, not hate me, it’s a way to show what it is). Docker represents an easy step to install services in our machine without installing it. This means, is like virtual machine using your own hardware instead of virtualize it and where you can install things. It’s complex to explain, because Docker are half path between your own computer and Virtual Machine.
The best way to understand what is and why use it is create a basic example. We are web developers, the best is create an Apache Image with PHP and execute some code. Read more