Docker and Docker Hub Commands

Docker Oct 17, 2020

Docker is a set of platform as a service products that use OS-level virtualisation to deliver software in packages called containers. The following is a non-exhaustive list of commonly used Docker Commands for quick reference.

Quick Links :

Docker Meta

docker-machine ip default
Check your docker IP default, usually 192.168.99.102
docker-machine ip
Find Docker Toolbox IP address, usually 192.168.99.102
docker version
Displays the docker version information

Docker Volumes

Volumes are the preferred mechanism for persisting data generated by and used by Docker containers.

docker volume ls
list volumes
docker volume ls -f dangling=true
list dangling volumes
docker volume rm [volume_name]
remove volume
docker volume prune
remove all dangling volumes

Docker Logging

docker logs [container_id]
List container logs
docker logs [container_id] --tail N
List container logs, --tail flag will show the last N lines of logs
docker logs [container_id] --since YYYY-MM-DD
List container logs since a particular date
docker logs [container_id] --since YYYY-MM-DDTHH:MM:SS.000000000Z
List container logs since a particular timestamp
docker logs -f [container_id]
Look at the logs of a container
docker inspect [container_id]
Examine a container's metadata in Docker
docker inspect --format='{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' [container_id]
Use --format to inspect specific fields from the returned container's metadata JSON

Docker Stats

docker stats
Show CPU and memory usage of all running containers
docker stats [container_name]
Show CPU and memory usage of a particular running container
docker stats [container1_name] [container2_name]
Show CPU and memory usage of container1, container2
docker top [container_name]
Show running processes in a container
docker system df
Show storage usage

Docker Basic Queries

docker images
Take a look at the container images.
docker images -a
shows every image, including intermediate image layers.
docker images -f dangling=true
list dangling images
docker image ls
Take a look at the container images.
docker ps
List all the running containers.
docker ps -a
List all the containers, including the ones that have finished executing.

Docker Container State Change

docker run [container_name]
Run a container.
docker run -p 8080:8080 [container_name]
Run a container by mapping a port on docker to a port on localhost
docker stop [container_id]
Stop a container
docker restart [container_name]
Restart a container.

Docker Management

docker build -t [project name] .
Build a Docker Image
docker system prune
Clean up any resources — images, containers, volumes, and networks — that are dangling (not associated with a container)
docker system prune -a
Remove any stopped containers and all unused images (not just dangling images)
docker rm [container_id-or-name]
Remove a container with a particular container name
docker rm $(docker ps -a -q)
Stop and remove all containers
docker rm -v container_name
Remove a container and its volume

MySQL Docker Container - Connecting to the MySQL docker image via CLI

docker exec mysql-docker mysql -usbat -psbat -e 'show databases;'
Connect to MySQL image without interactive CLI.
docker exec -it mysql-docker mysql -usbat -psbat -e 'show databases;'
Connect to MySQL image without interactive CLI.
docker exec -it mysql-docker mysql -usbat -psbat
Connect to MySQL image via interactive CLI.

Docker Hub

Docker Hub is a service provided by Docker for finding and sharing container images.

docker pull [container_name]
Logout a Docker image from Docker Hub
docker logout
Logout of Docker Hub from the local machine.
docker login --username=YOUR_DOCKERHUB_USERNAME
Login to Docker Hub from your machine.
docker tag <existing-image> <hub-user>/<repo-name>[:<tag>]
Re-tagging an existing local image
docker commit <existing-container> <hub-user>/<repo-name>[:<tag>]
Commit changes
docker push <hub-user>/<repo-name>:<tag>
Push this repository to the registry designated by its name or tag