What is DevOps?

What is DevOps?

• Methodology asking users for feedback with CI/CD

Sections

• Planning - how to build the app

• Coding - building the features

• Building - get the version done (for different OS, etc)

• Testing - Test these versions (Automation or Manual Testing)

• Release - releasing the app (usually blue - green deployment is done here)

• Deploy - via CI/CD to release on the internet

• Operate - scaling, adding more resources for the load, etc

• Monitoring - See if any issues arise, see if everything works fine

• After all the feedback, back to the planning stage & DO IT AGAIN

What is DevOps Engineering?

• Practical use of DevOps within software engineering teams. Being able to build, test, release and monitor applications

DevOps Engineering Pillars:

• Pull Request automation

• Deployment automation

• Application performance automation

Pull Request automation

• Developers share code changes using git tools like Github, Gitlab, Bitbucket

• A set of code changes in git tools is called a pull request or a merge request

• Inf pull requests are approved, the code changes can go into the main codebase

Deployment automation

• Deploy a feature to a certain set of users as a final test before rolling it out (canary deployment)

• Starting new versions of services without causing downtime (blue-green deployment)

• Rolling back to the prior version in case something goes wrong