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Docker Compose
Containers & orchestration
Docker Compose
Multi-container applications from a YAML file.
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Docker Compose: service "web" depends on undefined service "db"
docker compose fails with service "web" depends on undefined service "db" when depends_on names a service missing from the file, the -f list or a profile.
All Docker Compose error messages
Compose depends_on condition: service_healthy with a healthcheck
depends_on with condition: service_healthy makes Compose wait until a dependency's healthcheck passes before it starts the services that depend on it.
All Docker Compose config reference
docker-compose v1 to docker compose v2: what changed
Compose v2 replaces the Python docker-compose with the docker compose plugin: version is obsolete, container names use hyphens, and v1 is end of life.
All Docker Compose version changes
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