DevOps is here to stay – it is such an efficient way of managing development that it is hard to go back to anything else. If you are planning to grow your career in development, or in any IT field for that matter, you will have to grasp DevOps, and you will have to learn how to properly work in a DevOps environment. This doesn’t just mean thinking in a DevOps way – this means being able to use the tools that are used by DevOps companies.
DevOps means ensuring that all the different people involved in the development process work together in real time. Previously, the method was different – different people would work on their own part of the job, and in the end, everything would be compiled. This process led to many problems, and DevOps is the answer to all those problems. Jenkins is basically a live DevOps tools – it allows companies to go from using DevOps as an idea to using DevOps as a tool.
Jenkins makes it easy by allowing everyone to add their code to it, and then it compiles everything in different configurations. If there are any errors, it automatically notifies the people involved. This ensures that DevOps isn’t just a buzzword, but a proper process at your company.
Docker is one of those tools which, once you start using, you can’t just live without. It solves one of the oldest problems in programming – when you code something and it works, but it doesn’t work when you show it to someone else. Almost every single time the problem is because something on the computer you ran it was missing something required by the code.
Docker solves this problem by creating ‘containers’, and these containers contain everything that is needed in order to run the code. This means that no more incompatibility problems. The containers are a lite version of virtual machines – light enough to be run anywhere they are needed.
Puppet makes your life easier. When you work in DevOps, you try to keep machine configurations as similar as possible, to ensure that code can be merged without issues. Puppet allows you to automate such tasks. You tell it what you need to get done, and it will figure out how to do it. You tell it that you need Maven to run some code, and Puppet will search for Maven and install it automatically, after checking the configuration of the system.
These are just some of the tools used by companies that are serious about DevOps. If you want to succeed in the world of DevOps, you will need to know how to use these tools. The good thing is that these tools are designed to make it as easy to do DevOps as possible, so they will not complicate your life in any way.