Software development is a complicated process with many steps. Its lifecycle determines the time for the project, investments and of course profit. The more efficient the development process is, the bigger the profit you’ll receive.
DevOps approach can automate a lot of the routine processes, make them smoother and faster. To have a deeper understanding, we need to look at history a bit. Before the DevOps model introduction, development teams used the Waterfall model. The common development team includes developers, QA engineers and IT Operations. To understand how Waterfall works, imagine three columns with tasks. First column for developers, second for QA engineers and third for the IT Operations.
The developer should write code, QA engineer should test id and IT Operations should deploy the code. Every specialist has his/her own column with tasks. And tasks between columns look like a clear line. But in reality, while the developer writes code, QA engineer has his/her own tasks and IT Operations manage the infrastructure. When code is ready, both QA engineer and IT Operations need to stop current work and pay attention to the new code for creating a test environment, testing and deployment.
Thus, these three columns are always connected and mixed. This scheme looks like a mess and brings a lot of risks, problems and worries into the project. That’s why the IT community decided to find another way and create the Agile manifesto and the DevOps model as a practical implementation of Agile methodology.
DevOps principles and practices
DevOps culture provides strong collaboration between software developers, QA engineers and IT Operations. But it’s still an independent methodology with its own practices and principles:
- Infrastructure as Code (IaC). In the Waterfall model, the developer usually writes a lot of code before the testing, so configuring the testing servers takes lots of time and effort. With the DevOps model, he/she writes code in small parts and tests it immediately. It is possible because of the preliminary preparation of testing environments. DevOps engineer creates the required environment using settings stored in a textual file written in descriptive language. A developer or a QA engineer can easily change it and receive new parameters for the testing environment.
- Continuous Integration and Delivery (CI/CD). CI/CD allows making time-to-market shorter and increases competitiveness by providing frequent and fast releases. Thanks to CI/CD, a developer can make automated smoke tests before the QA engineer. Thus, the developer doesn’t bother QA engineer for testing and QA engineer doesn’t bother IT Operations or DevOps engineer for the deploying. As a result, all the team works more efficiently and faster.
- Continuous Monitoring and Logging. This principle is important for the stable work of your project. The DevOps engineer can automate the monitoring and immediately catch bottlenecks if they appear.
Final thoughts about DevOps model for business
We described basic things about the DevOps model and hope now you have a better understanding of this term now. Today DevOps is the most efficient approach to software development. It can automate a lot of routine processes and deliver the product to end-users much faster.
Thus said, DevOps implementation can become the best decision for your business almost at any stage of growth. Because it will make your processes faster and smoother, and the team more cohesive and motivated.