Recently, all IT professionals were divided into system administrators, testers, and programmers who had little or no overlap in their work. But a couple of years ago, the DevOps method emerged that linked these three areas and set up working together to create IT products faster. So, here is essay writer free online tips about it.

What is DevOps

There are 3 teams involved in any product development process:

• Dev - the developers who write the software code;
• QA/QC - testers who look for bugs and bugs in programs;
• Ops - engineers who monitor the infrastructure and run the finished code on the servers so that the customer can access and log in to the site or application.

These teams used to work separately, each responsible for their own part of the work. One department received the code from the other in batches, not in streams. For this reason the following problems arose: testers were checking an irrelevant block, system administrators could sit idle for a long time and wait for the code to be rewritten, and developers did not understand what result was needed.

In order to speed up the work, DevOps was created - a method of organizing interaction between development specialists. It helps to launch a "pipeline" where programmers, testers and system administrators actively interact with each other and are jointly responsible for the result.

DevOps methodology is a combination of two factors:

• principles of interaction: established relationships between specialists, approval of common KPIs, and establishment of joint responsibility for the result;
• a set of tools to create a "pipeline": automated testing programs, infrastructures for development, services for sending code between other groups.

In order to keep this system running smoothly, you need a separate professional - a DevOps engineer. He or she builds team processes, configures programs to work together, and acts as a guide for all employees.

How the DevOps method works

Usually programs are created sequentially: writing code, then testing the finished blocks, and deploying to customer-available servers. In DevOps, everything is done simultaneously:

• Engineers create programs to automate, set up test servers, and monitor the state of the services to perform tasks.
• Programmers develop code that is sent immediately for testing. Some of the units are tested automatically, the most difficult blocks are sent to the testing department.
• Tested code is sent to engineers for deployment on servers. At the same time, other application units are developed in parallel.
• Operations constantly monitors the process and looks for bugs in the code on the servers. If they find faults, they immediately send them back to the engineers for rework.
• This approach helps to run missing updates for services almost immediately, fix bugs right during development and create products much faster.