The following are some useful docker commands that I haven’t yet committed to memory.
Delete all containers
$(echo docker ps -aq) | while read -r line; do docker rm "${line}"; done
Delete ALL docker-related data (images, containers, etc)
WARNING: As with rm -rf on Linux, this action is not reversible. Take care when using this command.
docker system prune -a -f
Fix DNS issues on some Ubuntu 18.04 hosts
Problem: https://github.com/docker/libnetwork/issues/2187#issuecomment-403372190_
Solution (on the host): ln -sf /run/systemd/resolve/resolv.conf /etc/resolv.conf