What tools for automation of integration and software delivery are you familiar with and have used in practice?

Among popular tools for automation of integration and delivery (CI/CD), the following can be highlighted:

• Jenkins — a flexible and extensible automation server with a large community.
• GitLab CI/CD — integrated into GitLab, convenient for projects using GitLab.
• CircleCI — a cloud solution with simple configuration.
• Travis CI — popular in open-source, integrates with GitHub.
• TeamCity — a powerful tool from JetBrains with a user-friendly UI.

In practice, Jenkins is often used to set up build, test, and deployment pipelines. For example, Jenkins can be configured so that every push to the repository automatically triggers unit tests and project build, and then artifacts are uploaded to the server.