Docker: Start Container as Root User

When sudo is not available in container, you can jump into a running container as root user using one of these commands:

docker exec -u root -t -i container_id /bin/bash

docker compose run -u root --service-ports service_name exec bash

Note: the standalone docker-compose (hyphenated) binary is Docker Compose V1, which reached end-of-life in June 2023 and has been removed from current Docker Desktop/Engine installs. Use the docker compose CLI plugin (no hyphen) instead.