Software Development

DevOps

A collaborative process enabled by automation where application development, QA and Operations teams jointly accelerate delivery of new business application and services. DevOps emphasizes collaboration and cooperation.

CICD

Continous Integration (CI)

Continous Integration is a software development practice that involves the following:

• Verifies build integrity by checking if the source code can be pulled from repository and built for deployment. The build process may include compilation, packaging and configuration.
• Runs and validates the unit tests: executes all unit tests created by developers and validates the test results. This step insures that the source code was not broken as a side effect of the commit.
• Runs and validates the integration tests.
• Identifies problems and alerts the teams.

In the DevOps culture, CI is mandatory, and it performed automatically by a tool that runs automation scripts to eliminate all human intervention during the CI process.

The CI process requires a source code repository and a continuous integration server, that pulls code from the source repository and runs the build.

The CI process provides rapid feedback on the state of the project, each unit test or integration test-verified assertion that gets broken by a commit is immediately shared with the entire development team. The process is run every time there's a commit, presumably many times a day.

The build process should generate software that can be deployed at any time - a good release candidate.