Fast Docker CI: Stop Rebuilding Container Images on Every Commit

Sun, 15 Feb 2026 02:30:00 +0530

I used to rebuild my Docker image every time I fixed a typo. A one-line change meant waiting 2-3 minutes for Docker to rebuild layers, reinstall dependencies, and restart the container. I thought this was just the cost of containerized development.

Then I discovered runtime containers. Same isolated environment, same reproducibility, but code changes reflect instantly. No rebuilds. No waiting. The runtime lives in the container, the code lives on the host.

Nodejs on Lorbic

Fast Docker CI: Stop Rebuilding Container Images on Every Commit