DevOps culture becomes more and more popular. The main reason for such popularity is the high level of efficiency provided by the DevOps methodology. Why is it so efficient for software development and how does it work? Today we will discuss the main principles of DevOps culture and find out features of the DevOps.
We will give basic definition the DevOps as a term below but if you want to know more about DevOps services and practical implementation of DevOps methodology, we recommend you to read this material – https://itsvit.com/services/devops/.
You can face different DevOps definitions. There is a lot of information about DevOps as cooperation between developers and IT Operations, sometimes here is something about Quality Assurance engineers (QA) involvement. You definitely saw pictures with three crossed circles representing three teams – Dev, Ops and QA at the intersection of which DevOps arises.
Looks great but here is the thing. A lot of people perceive this image as if DevOps engineer needs to combine skills of three other specialists or as if DevOps team needs to include these three kinds of talents.
Reality is a bit different and DevOps specialist has its own skillset and DevOps team includes only DevOps engineers. But the main idea of DevOps philosophy is strong cooperation between developers, QA engineers and IT operations. Before DevOps culture introduction, the software development process looked like continuous and laborious throwing of the project and responsibilities between teams. DevOps provides strong collaboration between all the teams that make software development efficient and smooth.
The basic principles of DevOps philosophy
DevOps culture is the practical implementation of the Agile methodology. An Agile methodology is literally a flexible approach to software development. The whole process is redesigned in a way where teams cooperate from the project beginning and until it ends. So, what principles does DevOps philosophy include?
- Infrastructure as Code. This is also called IaC. It means the infrastructure settings for software deployment are represented in a textual file called manifest, where you can write the conditions for deployment. Manifest is written in descriptive language, so the developer doesn’t need to learn new syntax, he can just change a few lines and get a new deployment environment. So, DevOps engineer creates the infrastructure and writes manifests and the developer can change the parameters for every case. All these processes work in the cloud and use the capacity of cloud servers. Before the DevOps, IT Operations created a deployment environment on a dedicated or on-prem server for every test. This negatively affected development speed.
- Continuous Integration (CI). A developer has the main Git branch with the main project code. When he needs to change something or add new features, he writes new parts of code separately from the main branch. When new code passes the tests it can be included in the main branch. This approach allows testing every new code batch without pausing or failing the main software functionality. That’s why new features can be provided every week unlike the releases once a year, which were usual before the DevOps.
- Continuous Delivery (CD). This is a logical step after CI. The new code is automatically tested and added to the main branch and after that, it’s delivered to the end-users. You might notice how often your smartphone wants to update some apps. This is because of DevOps and CI/CD processes. Without automation and CI/CD pipelines, applications would have to wait a long time for updates or bugfixes.
- Monitoring and logging. Despite all these wonderful automated processes, infrastructure might still have some bottlenecks or weak places. It is important to find and remove them all. That’s why DevOps engineer is needed on the project even after automation.
- Communication and collaboration. We’ve already said about collaboration between teams and this is a very important point. The development team needs to both use the modern DevOps tools and work with the DevOps philosophy of collaboration. Such an approach will bring the best result.
Wrap up: DevOps principles for efficient development
We’ve described the main DevOps principles and their place in the development process. The main ideas are strong collaboration and automation of repetitive processes. These two points are closely related and complement each other, so it’s impossible to say what’s more important – work with the team or redesigning the infrastructure.
DevOps implementation can bring you huge benefits but it needs time and investments. That’s why a lot of business owners postpone this important step. But the longer you’ll refuse using the DevOps methodology, the harder will the implementation be. Also, you’ll lose the competitiveness on the market.
Don’t be afraid of changes and new technologies. DevOps methodology exists for 10 years already and is rightfully considered the most efficient methodology of software development nowadays.