02 Base app
Instructor notes for module 02 — timing, talk track, common failures, and reset steps.
macOS terminal: Run workshop commands in Terminal using zsh or bash.
Facilitator companion to the learner lesson 02 Base app.
Timing
About 5 minutes. Keep this short; it is orientation, not construction, and buys time for services and telemetry to warm up.
Talk track
- Walk the two dashboards on the projector: Ops (live) versus Historical (large ranges).
- Point out the chat panel and set the expectation that it is wired up in module 08.
- Name the data flow so the later modules have a shared vocabulary.
- TODO: expand.
Common failures
- Front end not reachable at
http://localhost:8080/because the stack is not healthy yet; have them rundocker compose ps. - The 2026-07 clean-room dry run covered this module; validated failure modes, timings, and human-gated steps were confirmed in the 2026-07 clean-room dry run.
Reset steps
docker compose down && docker compose up -dto recover an unhealthy stack.- TODO: confirm reset commands.