Continuous Integration and Continuous Deployment (CICD) are software development practices that aim to automate the process of building, testing, and deploying code changes.
Continuous Integration (CI) involves regularly integrating code changes from multiple developers into a shared repository, and automatically building and testing the integrated code. This helps catch and resolve integration problems early on in the development process.
Continuous Deployment (CD) extends CI by automatically deploying code changes to production once they pass all necessary tests. This reduces the lead time between writing code and releasing it to the users.
The overall process of CICD typically involves the following steps:
Code Commit: Developers commit code changes to a shared repository (such as GitHub).
Build and Test: A CI/CD tool (such as Jenkins or TravisCI) listens for code changes and triggers a build process. The tool compiles the code, runs automated tests, and checks for quality and security issues.
Deployment: If the build and tests are successful, the code is automatically deployed to the desired environment (such as a staging or production environment).
Feedback: The CD process provides immediate feedback on the success or failure of the deployment, allowing for quick resolution of any issues.
By automating these processes, CICD helps organizations to deliver code changes faster and with more confidence, and frees up developers to focus on writing code, rather than manually building and deploying it.