If you’re a Java developer, Docker is a true game changer for you!
Developing Java applications in large enterprises is no easy task. Every day you are asked to work with many different technologies. In the morning, you might need to save data to a MySQL database. In the afternoon, you might be working with RabbitMQ. Tomorrow you might be asked to work with Mongo or Redis.
Think about what you need to do when working with all these different technologies.
If you install all these on your laptop, it becomes cluttered and slow. Sure, you could use VMs to run these – if you really want to slow down your laptop. Virtual Machines are awesome, but VMs can also be huge resource hogs.
If you’re on a dev team, you can set up dedicated development servers. But then you don’t have a clean development environment. And your development work becomes dependent on access to the development servers.