Powerbuilding With Fly

The text discusses deploying Docker images to Fly infrastructure using flyctl. It explains how to identify your build with flags like --config and --dockerfile, and control the build process with options such as ARG and ENV in a Dockerfile. Additionally, it introduces the use of --build-args for passing non-sensitive data during the build process. The text also highlights that sensitive information should not be passed using --build-args but rather through Fly Secrets for secure storage and injection into the application when running on the Fly platform.