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Useful commands

Understand those Docker useful commands.

Docker system events

Reference

It will get real-time events that were logged from the server. So, all changes that are made to containers or networks are logged under this command.

docker system events --since 60m
docker system events --since 2024-05-30
docker system events --filter '<key>=<value>'
docker system events --filter 'container=588a23dac085'

Disk usage metrics for docker objects

It will display the actual size of the different objects that are managed by Docker.

docker system df
docker system df -v

Copy

Make sure the directory exists for both side paths. You can copy entire folder too.

Host to container

docker container cp <local-path> <container>:<container-path>
docker container cp /home/username/config.yaml apiapp:/etc/api/config.yaml

Container to host

docker container cp <container>:<container-path> <local-path>
docker container cp apiapp:/etc/api/config.yaml /home/username/config.yaml
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Docker Compose

Understand how docker compose works.

Best Practices for creating a Docker image

Learn how to apply best practices for creating a Docker image.

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