CircleCI

CircleCI is a renowned platform that provides continuous integration (CI) and continuous delivery (CD) services. It was established in September 2011 and has since grown to become one of the world’s most popular CI/CD platforms. As of 2021, CircleCI had raised $315 million in venture capital funding and was valued at $1.7 billion.

The primary mission of CircleCI is to manage change so that software teams can innovate faster. It empowers technology-driven organizations to do their best work and makes engineering teams more productive and innovative by managing change. CircleCI provides enterprise-class support and services and works where you work: Linux, macOS, Android, and Windows – in the cloud or on your servers.

CircleCI is designed to build, test, and deploy using intelligent automation. It integrates code into a chosen branch of a shared repository early and often.

Instead of building out features in isolation and integrating them at the end of a development cycle, code is integrated with the shared repository by developers multiple times throughout the day by committing daily to a shared mainline. Every commit triggers automated tests and builds. If these fail, they can be repaired quickly.

Continuous delivery (CD) is another practice that CircleCI supports. It produces reliable releases to a chosen development environment, like a staging or production branch. The CI/CD process allows developers to release more stable products.

A software repository on a supported version control system (VCS) needs to be authorized and added as a project on circleci.com. Every code change triggers automated tests in a clean container or virtual machine. CircleCI runs each job in a separate container or virtual machine. CircleCI sends an email notification of success or failure after completing the tests. CircleCI also includes integrated Slack and IRC notifications.

Code test coverage results are available from the details page for any project for which a reporting library is added. CircleCI may be configured to deploy code to various environments, including AWS S3, AWS EC2 Container Service (ECS), Google Cloud Platform (GCP), Azure Container Registry, Heroku, Firebase, Android, iOS, among others.

The orbs registry contains packages of reusable configurations that can be used for common deployment targets. Orbs simplify and streamline your configuration. Other cloud service deployments can be scripted using SSH or by installing the API client of the service with your job configuration.

In conclusion, CircleCI is essential for any software development team looking to streamline their workflow and improve productivity. Its robust features and wide range of integrations make it an excellent choice for managing change and fostering innovation.