INC-106Dockerhard

Compose half up

On-call incident: only half of the Compose stack is up and the database refuses to start. Find out what a cleanup script removed and bring the stack back.

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The ticket

Monitoring: ALERT: shop on :8080 is down. Stack: /srv/shop (docker compose).

Ops bot: Nightly cleanup script ran at 02:00: removed stray hidden files in /srv/*. 🧹

This is how it starts. The rest is up to you.

How it works

  1. 01

    A machine of its own

    You get a simulated computer, set up for this challenge. Your own machine is kept aside and comes back afterwards.

  2. 02

    Any correct way counts

    We check the machine, not the exact words you typed, so you can solve it your way.

  3. 03

    Learn why

    When it works, a short lesson explains what was wrong and how the real tool behaves.

Questions

When does it open?

When you finish Level 11, the level that teaches what you need.

What if I get stuck?

Ask for a hint. Hints cost a little XP, and the last one tells you what to type.

Can I play it again?

Yes, as often as you like. Your best result is the one we keep.

Is this a real Linux or Docker?

No. It is a simulation that answers like the real tools, so nothing can break and nothing runs on your computer.

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