Continuous integration is a software development practice that aims to improve the quality and speed of software delivery. It involves integrating code changes from multiple developers into a shared repository frequently, usually several times a day. By doing so, it enables early detection and resolution of bugs, conflicts and errors, as well as faster feedback and validation of new features. Continuous integration also facilitates collaboration and communication among developers, testers and other stakeholders. It is often combined with other practices such as continuous delivery, continuous testing and continuous deployment to form a continuous software pipeline that delivers value to customers faster and more reliably.
Continuous integration (CI) is a software development practice that involves integrating code changes from multiple developers into a shared repository frequently, usually several times a day.
CI has many benefits for software quality, efficiency and collaboration, such as:
CI is an essential component of both ALM and DevOps, as it enables faster feedback loops, higher quality standards, and more frequent releases. CI helps to align the goals and expectations of different teams and stakeholders involved in the software project. By integrating code changes regularly and automatically into a shared repository, CI ensures that everyone is working with the latest version of the codebase. This reduces conflicts, errors, and delays in delivering software products that meet customer needs.
See also Continuous Delivery
Continuous integration is a software development practice where developers frequently merge their code changes into a shared repository, which is then automatically built, tested, and integrated into the software.
Continuous integration is important because it helps to identify and address integration issues early in the development cycle, reducing the risk of defects and errors in the final software product.
Benefits of continuous integration include faster development cycles, better collaboration among team members, improved software quality, and reduced risk of integration problems.
Some common tools used in continuous integration include Jenkins, Travis CI, CircleCI, GitLab CI/CD, and TeamCity.
Continuous delivery is an extension of continuous integration, where software is automatically built, tested, and deployed to production or other environments.
Continuous integration is focused on automating the build, test, and integration process, while continuous delivery is focused on automating the entire software delivery process, from build to deployment.
Benefits of continuous delivery include faster and more reliable software releases, reduced risk of deployment failures, and increased agility in responding to changing business needs.
Some common tools used in continuous delivery include Docker, Kubernetes, Ansible, Puppet, and Chef.
A CI/CD pipeline is a series of automated steps that take code changes from development through to deployment, including building, testing, and deployment.
Best practices for implementing continuous integration and delivery include ensuring a stable and maintainable codebase, using version control, automating the build and test process, monitoring performance and metrics, and fostering a culture of collaboration and continuous improvement.
In software engineering, continuous integration (CI) is the practice of merging all developers' working copies to a shared mainline several times a day. Nowadays it is typically implemented in such a way that it triggers an automated build with testing. Grady Booch first proposed the term CI in his 1991 method, although he did not advocate integrating several times a day. Extreme programming (XP) adopted the concept of CI and did advocate integrating more than once per day – perhaps as many as tens of times per day.
Automatically build and test your code as you push it upstream, preventing bugs from being deployed to production. A complementary practice to CI is that before submitting work, each programmer must do a complete build and run (and pass) all unit tests. Integration tests are usually run automatically on a CI server when it detects a new commit.
https://en.wikipedia.org/wiki/Comparison_of_continuous_integration_software