Running Jenkins on Docker

The true advantage of having Jenkins on Docker is when you have to quickly create multiple development and staging instances of your production Jenkins server. It's also very useful in redirecting the traffic to a secondary Jenkins server while you perform maintenance activities on the primary Jenkins server. While we will see these use cases later, let's first try to run Jenkins on Docker.

Prerequisites

Before we begin, make sure you have the following things ready:

• We need a machine with at least 4 GB of RAM (the more the better) and a Multi-core processor.
• Depending on how you manage the infrastructure in your team, the machine could be an instance on a cloud platform (such as AWS, DigitalOcean...