Copyright: Attribution, allow others to create paper-based, and must distribute paper (based on the original license agreement with the same license Creative Commons )
Copyright, without permission, is prohibited reprint
chapter
- Docker Introduction
- Docker and the difference between virtual machines
- Docker installation
- Docker Hub
- Docker mirror (image)
- Docker container (Container)
- Docker container operations
- Docker container shell
- Docker Dockerfile
- Construction Docker mirror (docker build)
- Docker Dockerfile instruction
- Docker examples
- Docker Compose
- Docker network
Container (container) is a running instance Docker image, similar to the relationship between the executable file and process, Docker containers engine is equivalent to the system platform.
Run container
Use docker runthe command management and operation of the vessel.
Examples
[root@qikegu ~]# docker run -it --rm busybox
/ #
/ #
/ #
/ #
/ # exit
This command will run busybox image, then the system enters busybox shterminal.
exitExit command shell, the container itself will also stop running. Can also be used ctrl + p + q, you can exit the shell, the vessel will continue to run.
The container list
docker psCommand to list the container on the system.
Simple usage
docker ps
Common options
-a,--allShow all of the container (including the already stopped)
return value
The printing system in the container.
example
Print system currently running container.
[root@qikegu ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
6dabe342ab99 busybox "sh" 19 seconds ago Up 18 seconds jovial_swirles
Show all containers (including already stopped)
[root@qikegu ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
6dabe342ab99 busybox "sh" 5 minutes ago Up 5 minutes jovial_swirles
0f191fd7d469 busybox "sh" 26 minutes ago Exited (0) 26 minutes ago hopeful_lalande
8ae26063af0b hello-world "/hello" About an hour ago Exited (0) About an hour ago nostalgic_jepsen
4e80cdf55081 busybox "sh" About an hour ago Exited (0) About an hour ago heuristic_euler
2190b6af6286 hello-world "/hello" 2 hours ago Exited (0) 2 hours ago pensive_ganguly
cd5d988325ff jenkins "/bin/tini -- /usr/l…" 40 hours ago Exited (130) 40 hours ago awesome_heyrovsky
053eaa5cc8e5 hello-world "/hello" 41 hours ago Exited (0) 41 hours ago gifted_booth
b6f8c654159a 2bcb04bdb83f "/bin/bash" 5 weeks ago Exited (127) 5 weeks ago competent_khorana
8703a9083c4a 2bcb04bdb83f "/bin/bash" 5 weeks ago Exited (0) 5 weeks ago cocky_engelbart
docker history
This command displays create a mirror of history.
Simple usage
docker history IMAGE
Common options
- The IMAGE - Specifies image name / ID.
return value
Display historical images.
example
The Create history busybox image.
[root@qikegu ~]# docker history busybox
IMAGE CREATED CREATED BY SIZE COMMENT
64f5d945efcc 10 days ago /bin/sh -c #(nop) CMD ["sh"] 0B
<missing> 10 days ago /bin/sh -c #(nop) ADD file:e36dd1822f36a8169… 1.2MB
Tutorial mentioned are typical command usage, other usage, can be used
docker help commandto view, for example:docker help rmi
Docker containers and host
Docker Engine is cross platform, as long as the Docker installed on the host, docker mirror will be able to run in the host, no matter what their specific system environment Yes. For example: a nginx Docker image can be run on any system installed docker, whether it is Linux or windows, etc. This is a great advantage, which means the deployment of applications will be greatly simplified.