Shulou(Shulou.com)06/02 Report--

Before we begin

The official account has previously published three articles about Docker images and repositories. If you need to read them, you can reply to the image on Wechat [official account] to get links to the articles. Next, let's create the first docker container.

This article uses two examples to explain docker commonly used commands, including run, ps, stop, start, rm, inspect, logs, exec and other sub-commands, these basic commands are used relatively frequently, it is recommended to master the use method.

Take a chestnut.

Create a nginx container and mount the host "/ tmp/demo" directory to the container "/ demo" directory.

Create a container

Docker run-- name test-d-p 80:80-v / tmp/demo:/usr/share/nginx/html nginxe112ef640768f53ee32ae622874e51c79545e2e9ce02066f091190f2b67643fa

List containers

Docker psCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMESe112ef640768 nginx "nginx-g'daemon of..." 6 seconds ago Up 4 seconds 0.0.0.0 daemon of 80-> 80/tcp test

Create a file in the host

Echo 'hello docking' > / tmp/demo/index.html

Read a file in a container

Docker exec-ti test cat / usr/share/nginx/html/index.htmlhello docker! Mount directory permissions

If you want the container to only read but not write, mount the host directory with read-only permissions.

Close the container

Docker stop testtest# launch Container # docker start test

Delete Container

Docker rm test test

Be careful。 Only the container itself is deleted, and the mounted directory and its data are not deleted.

Create a new container

Docker run-- name new-d-p 80:80-v / tmp/demo:/usr/share/nginx/html:ro nginx

Note: ro indicates read-only permission, and the default value rw indicates read-write permission.

Log in to the container console

Docker exec-ti new / bin/bashroot@71a8e8ac3104:/#

Try to delete a file within the container

Root@71a8e8ac3104:/# rm / usr/share/nginx/html/index.html rm: cannot remove'/ usr/share/nginx/html/index.html': Read-only file system

Exit the Container console

Root@71a8e8ac3104:/# exit accesses this container

The nginx container is created and, of course, accessible.

Get the container IP

Docker inspect new | grep-I 'IPAddress' "SecondaryIPAddresses": null, "IPAddress": "172.17.0.2", "IPAddress": "172.17.0.2"

The curl command returns exactly the index.html created on the host.

Curl http://172.17.0.2hello docker!

Container log-stdout standard output

Docker logs test172.17.0.1-- [27/Mar/2016:09:33:15 + 0000] "GET / HTTP/1.1" 20014 "-" curl/7.47.0 "-" Command help

The following are the commands used in the article.

Docker run-helpUsage: docker run [OPTIONS] IMAGE [COMMAND] [ARG...] Run a command in a new containerOptions:-name string Assign a name to the container-d,-- detach Run container in background and print container ID-v,-- volume list Bind mount a volume-t,-- tty Allocate a pseudo-TTY-i,-- interactive Keep STDIN open even if not attached

Reference article

Create a docker container

Doker&k8s Qun [703906133]

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