Basic operation of Docker

Operations related to mirroring

# docker search centos # search for images

# docker image ls

# docker images

# docker image rm name/id # Delete an image

View the space occupied by images, containers, and data volumes # docker system df

Docker history nginx # View Image Modification History

Operation of containers

Docker container ls

Docker ps # shows only the containers that are running

Docker container ls-a

Docker ps-a # shows all containers

Docker run-it-- name=mynginx nginx / bin/bash # goes directly to the container. After exit, the container will stop running, but will not disappear.

Docker ps-a | grep mynginx

Docker container rm mynginx # Delete containers that are not running

Docker run-d-name=mynginx nginx # container runs in the background and can be accessed through exec. Whether the container will run for a long time is related to the command specified by docker run and has nothing to do with the-d parameter.

Docker exec-it mynginx / bin/bash # enters the container running in the background. After exit, the container will not exit.

Docker ps | grep mynginx

Docker container rm-f mynginx # forcefully deletes a running container

Docker container start id/name

Docker container restart id/name

Docker container stop id/name

Docker container logs id # View container output

Docker run-- name webserver-d-p 80:80 nginx # the first 80 is the external port, and the second 80 is the container port

Docker diff webserver # View container modifications