$ replaybook

replaybook

Incident replay trainer. Get paged, fix real broken infrastructure, win.

Each scenario is a Docker environment with a fault injected. You're dropped into a shell inside the broken container. The terminal splits — shell on the left, HUD on the right showing the incident page, SLA countdown, and hints. Diagnose and fix using real tools. The engine polls a health check in the background — when it goes green, you're done.

Built to turn post-mortems into playable scenarios. New engineers build muscle memory on the actual failure modes your team has hit, not simulations.

Install

cargo install replaybook

Requires Docker. Prebuilt binaries for linux-x86_64, linux-arm64, macos-x86_64, and macos-arm64 are on the releases page.

Getting started

# add the official scenario pack
replaybook add ducks/replaybook-scenarios

# see what's available
replaybook list

# run your first scenario
replaybook run 001-nginx-502

Both replaybook and replay are installed — use whichever you prefer.