Copy file from container

Extract a single file from a running or stopped container

docker cp <container>:/app/config.yaml ./local-config.yaml

More docker commands

Docker compose up detached

docker compose up -d --build --remove-orphans

Rebuild and start services, remove containers not in compose file
Scale a compose service

docker compose up -d --scale worker=5

Run 5 replicas of the worker service
Print compose service logs

docker compose logs -f --tail=100 worker

Stream last 100 lines of a specific compose service
Inspect network

docker network inspect bridge | jq '.[0].Containers | to_entries[] | .value | {Name, IPv4Address}'

Show IPs of all containers in the bridge network
Create custom network

docker network create --driver bridge --subnet 172.30.0.0/24 mynet

Create a bridge network with a custom subnet