DevOps Features and Components

DevOps Consists of 5 C

DevOps practices lead to high productivity, lesser bugs, improved communication, enhanced quality, faster resolution of problems, more reliability, better and timely delivery of software.

• Continuous Integration
• Continuous Testing
• Continuous Delivery
• Continuous Deployment
• Continuous Monitoring
  

1. Continuous Integration

Continuous integration means isolated changes are tested and reported when they are added to a larger code base. The goal of continuous integration is to give rapid feedback so that any defect can be identified and corrected as soon as possible.

Jenkins is used for continuous integration which follows 3 step rule i.e. build, test and deploy. Here developer does frequent changes to the source code in shared repository several times a day.

2. Continuous Testing

Continuous Testing is done to obtain immediate feedback on the business risk associated with Software Release. It's basically difficult and essential part of the software. Software rating depends upon Testing. Test function helps the developer to balance the quality and speed. Automated tools are used for testing as it is easier to do testing continuously instead of testing a whole software. Tool used for testing the software is Selenium

3. Continuous Delivery

Continuous Delivery is the ability to do changes like including new features, configuration management, fixes bugs and experiments into production. Our motive for doing continuous delivery is the continuous daily improvement. If there is any kind of error in the production code, we can quickly fix it that time. So, here we are developing and deploying our application rapidly, reliably and repeatedly with minimum overhead.

4. Continuous Deployment

The code is automatically deployed to the production environment as it passes through all the test cases. Continuous versioning ensures that multiple versions of the code are available at proper places. Here every changed code is put into production that automatically resulting in many deployments in production environment every day.

5. Continuous Monitoring

Continuous Monitoring is a reporting tool because of which developers and testers understand the performance and availability of their application, even before it is deployed to operations. Feedback provided by continuous monitoring is essential for lowering cost of errors and change. Nagios tool is used for continuous monitoring.