# Lab: Docker Compose Quickstart Build a Python Flask and Redis hit-counter app using Docker Compose, starting from a bare `compose.yaml` and progressively adding production-quality features at each step. ## Launch the lab

Start the labspace:

$ docker compose -p labspace -f oci://dockersamples/labspace-compose-quickstart up -d

Open your browser to http://localhost:3030.
When you're done, tear down the labspace:
$ docker compose -p labspace down

## What you'll learn By the end of this Labspace, you will have completed the following: - Define a multi-service application in a `compose.yaml` file and manage it with Compose commands - Control service startup order using health checks and `depends_on` conditions - Iterate on code without manual rebuilds using Compose watch mode - Persist data across container restarts with named volumes - Modularize a stack across multiple files using the `include` directive - Use `config`, `logs`, and `exec` to inspect and debug a running stack ## Modules | # | Module | Description | | --- | -------------------------------- | --------------------------------------------------------------------- | | 1 | Introduction | Tour the starter app and verify the environment | | 2 | Defining Services | Write the first `compose.yaml` and bring up the Flask and Redis stack | | 3 | Health Checks & Startup Order | Add a Redis healthcheck and `depends_on` to eliminate race conditions | | 4 | Live Development with Watch Mode | Configure watch mode to sync code changes without manual rebuilds | | 5 | Persistence & Debugging | Add a named volume so Redis data survives `docker compose down` | | 6 | Using Multiple Compose Files | Extract Redis into `infra.yaml` and compose files with `include` | | 7 | Additional Commands | Use `config`, `logs -f`, and `exec` to inspect the running stack | | 8 | Recap | Review what was built and explore next steps |