Run a Compose Project

Objective

Use one Compose project to run a web server and a temporary client.

Create compose.yaml

services:
  web:
    image: nginx:alpine
    ports:
      - "127.0.0.1:8093:80"
  client:
    image: busybox:1.37
    profiles: ["tools"]
    command: ["wget", "-qO-", "http://web:80"]

Start and Verify

docker compose -p docker-lab config
docker compose -p docker-lab up -d web
docker compose -p docker-lab ps

Wait until http://localhost:8093 shows nginx, then run:

docker compose -p docker-lab run --rm client
docker compose -p docker-lab logs web

The client prints the web page using the service name web. Its tools profile keeps it out of a normal project startup; explicitly targeting it with run still works.

Practice

Change the published host port and repeat the client request. Explain why the client URL remains unchanged.

Cleanup

docker compose -p docker-lab down

Continue with Docker Scripting.

Docker Roadmap