Scale a compose service docker
Run 5 replicas of the worker service
docker compose up -d --scale worker=5
more docker
all 46 commands →
Print compose service logs
docker compose logs -f --tail=100 worker
Inspect network
docker network inspect bridge | jq '.[0].Containers | to_entries[] | .value | {Name, IPv4Address}'
Create custom network
docker network create --driver bridge --subnet 172.30.0.0/24 mynet
Save and load image
docker save myapp:1.0 | gzip > myapp.tar.gz && docker load < myapp.tar.gz
Healthcheck in Dockerfile
HEALTHCHECK --interval=10s --timeout=3s --retries=3 CMD curl -sf http://localhost:8080/health || exit 1