Of all the principles of programming, Don’t Repeat Yourself (DRY) is perhaps one of the most fundamental. The principle was formulated by Andy Hunt and Dave Thomas in The Pragmatic Programmer and underlies many other well-known software development best practices and design patterns. The developer who learns to recognize

If you are a developer, version control has a major role in your life. You may have different version control systems like github, bitbucket etc. Remembering username and password of each version control and enter them each and every time you perform any git action is hard. Thankfully github and

In a traditional mutable server infrastructure, servers are continually updated and modified in place. Engineers and administrators working with this kind of infrastructure can SSH into their servers, upgrade or downgrade packages manually, tweak configuration files on a server-by-server basis, and deploy new code directly onto existing servers. In other