Andrew Dorokhov
Continuous integration (CI) automates building and testing code on every change. Options fall into self-hosted and hosted services.
Self-hosted
- open_in_new Jenkins — free, runs on your own infrastructure.
Hosted services
Most of these tools focus on running unit tests for a predefined set of programming languages rather than full container-based test orchestration. That said, all of the vendors above have shown growing interest in containerization.
Containers in CI/CD
Containers fit CI/CD workflows well. The main idea: use the same image across pipeline stages instead of rebuilding environment-specific images at each step. Build once, run tests, deploy — all from one artifact.