Continuous integration (CI) is an agile and DevOps best practice where developers integrate their code changes early and often to the main branch or code repository.
Important Success Factors are:
1. Maintain a code repository:
Use a version control system (such as Git) to store and manage the source code of a software project. This allows for easy collaboration and tracking of changes made to the code.
2. Automate the build:
Use tools and scripts to automate the process of compiling, packaging, and creating a distributable version of the software. This can save time and reduce errors.
3. Make the build self-testing:
Incorporate automated tests into the build process, so that the software is tested for bugs and errors before it is released.
4. Everyone commits to the baseline every day:
Make sure that all members of the development team are regularly making changes and committing them to the code repository. This helps to ensure that the codebase is always up to date and that everyone is working together effectively.
5. Every commit (to baseline) should be built:
Automatically build and test new code as soon as it is committed to the repository. This helps to catch and fix errors early in the development process.
6. Keep the build fast:
Optimize the build process to minimize the time it takes to compile and test the software. This can be achieved through techniques such as parallelization and caching.
7. Test in a clone of the production environment:
Replicate the environment in which the software will be deployed (e.g. a specific operating system) and running tests on the software to ensure that it will work correctly in that environment.
8. Make it easy to get the latest deliverables:
Provide an easy way for team members and stakeholders to access the latest version of the software. This could be done through an automated delivery system or by making the software publicly available.
9. Everyone can see the results of the latest build:
Provide visibility into the build process and test results to all members of the development team. This helps to ensure that everyone is aware of the status of the project and can identify and address any issues that arise.
10. Automate deployment:
Use tools and scripts to automate the process of deploying the software to its final destination, whether it is a test environment, production, or other environments. This can save time and reduce errors, and make the process of deploying the software more efficient.
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