DEV Community

D
D

Posted on

Docker Commands

#docker
  • Installing Docker on Mac OS X

https://docs.docker.com/installation/mac/

  • boot2docker start 
$ boot2docker start
Enter fullscreen mode Exit fullscreen mode
  • attach ( Attach to a running container ) 
$ docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
adead7a08f15        ubuntu:14.04        /bin/bash           About an hour ago   Up 27 minutes                           myubuntu            

$ docker attach myubuntu
root@adead7a08f15:/#
Enter fullscreen mode Exit fullscreen mode
  • build ( Build an image from a Dockerfile ) 
$ vim Dockerfile
FROM centos:centos6
MAINTAINER Dongri Jin

RUN yum update -y && \
    rpm --import http://nginx.org/keys/nginx_signing.key && \
    yum install -y http://nginx.org/packages/centos/6/noarch/RPMS/nginx-release-centos-6-0.el6.ngx.noarch.rpm && \
    yum install -y nginx

EXPOSE 80
ENTRYPOINT ["/usr/sbin/nginx", "-g", "daemon off;"]

$ docker build -t ngix .

$ docker images

$ docker run -d -p 80:80 nginx

$ VBoxManage controlvm "boot2docker-vm" natpf1 "nginx,tcp,127.0.0.1,8080,,80"

$ open http://localhost:8080
Enter fullscreen mode Exit fullscreen mode
  • commit ( Create a new image from a container's changes ) 
$ docker run -i -t -d nginx                       
ea21748dddd379d8959373cd366b1eb10f4193a68c530c3539fe110b0531bd22

$ docker  docker ps
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS              PORTS               NAMES
ea21748dddd3        nginx:latest        /usr/sbin/nginx -g '   About an hour ago   Up 3 seconds        80/tcp              tender_fermi        

$ docker commit ea21748dddd3 my-nginx
69f023fe647655f984afd0617dd1e65d8b9a2e5e551bac32af5e6436bfe3ac70

$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
my-nginx            latest              69f023fe6476        About an hour ago   267.8 MB
nginx               latest              9bc094d3c806        About an hour ago   267.8 MB
Enter fullscreen mode Exit fullscreen mode
  • cp ( Copy files/folders from a container's filesystem to the host path ) 
$ docker run -d nginx
69e4211b565349631845e984a5914688a250671764c98c959236fb53d059a709

$ docker ps
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS              PORTS               NAMES
69e4211b5653        nginx:latest        /usr/sbin/nginx -g '   About an hour ago   Up 1 seconds        80/tcp              distracted_curie    

$ docker cp 69e4211b5653:/usr/share/nginx/html/index.html ./

$ ls -l
total 16
-rw-r--r--  1 dongri  staff  332 Nov 29 17:41 Dockerfile
-rw-r--r--  1 dongri  staff  612 Sep 16 22:57 index.html
Enter fullscreen mode Exit fullscreen mode
  • diff ( Inspect changes on a container's filesystem ) 
$ docker ps
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS              PORTS               NAMES
69e4211b5653        nginx:latest        /usr/sbin/nginx -g '   About an hour ago   Up 3 minutes        80/tcp              distracted_curie    

$ docker diff 69e4211b5653
C /var
C /var/cache
C /var/cache/nginx
A /var/cache/nginx/client_temp
A /var/cache/nginx/fastcgi_temp
A /var/cache/nginx/proxy_temp
A /var/cache/nginx/scgi_temp
A /var/cache/nginx/uwsgi_temp
C /var/run
A /var/run/nginx.pid
Enter fullscreen mode Exit fullscreen mode
  • events ( Get real time events from the server ) 
$ docker events
[2014-11-29 17:09:17 +0900 JST] d9860be76a657a: (from my-nginx:latest) create
[2014-11-29 17:09:17 +0900 JST] d9860be76a657a: (from my-nginx:latest) start
[2014-11-29 17:09:17 +0900 JST] d9860be76a657a: (from my-nginx:latest) die
[2014-11-29 17:09:42 +0900 JST] 94d8ff9c9b006b: (from nginx:latest) create
[2014-11-29 17:09:42 +0900 JST] 94d8ff9c9b006b: (from nginx:latest) start
[2014-11-29 17:10:19 +0900 JST] 94d8ff9c9b006b: (from nginx:latest) die
Enter fullscreen mode Exit fullscreen mode
  • export ( Stream the contents of a container as a tar archive) 
$ docker ps
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS              PORTS               NAMES
69e4211b5653        nginx:latest        /usr/sbin/nginx -g '   About an hour ago   Up 9 minutes        80/tcp              distracted_curie    

$ docker export 69e4211b5653 > nginx.tar
Enter fullscreen mode Exit fullscreen mode
  • history ( Show the history of an image ) 
$ docker history nginx
IMAGE               CREATED             CREATED BY                                      SIZE
9bc094d3c806        About an hour ago   /bin/sh -c #(nop) ENTRYPOINT [/usr/sbin/nginx   0 B
bc8b862f52f2        About an hour ago   /bin/sh -c #(nop) EXPOSE map[80/tcp:{}]         0 B
6a7c1a5d6e92        About an hour ago   /bin/sh -c yum update -y &&     rpm --import    52.02 MB
7becd8731a8d        About an hour ago   /bin/sh -c #(nop) MAINTAINER Dongri Jin         0 B
70441cac1ed5        3 weeks ago         /bin/sh -c #(nop) ADD file:87e3d5074ec1720805   215.8 MB
5b12ef8fd570        8 weeks ago         /bin/sh -c #(nop) MAINTAINER The CentOS Proje   0 B
511136ea3c5a        17 months ago                                                       0 B

$
Enter fullscreen mode Exit fullscreen mode
  • images ( List images ) 
$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
my-nginx            latest              69f023fe6476        About an hour ago   267.8 MB
nginx               latest              9bc094d3c806        About an hour ago   267.8 MB
centos              centos6             70441cac1ed5        3 weeks ago         215.8 MB
ubuntu              14.04               c4ff7513909d        3 months ago        225.4 MB
ubuntu              latest              c4ff7513909d        3 months ago        225.4 MB
Enter fullscreen mode Exit fullscreen mode
  • import ( Create a new filesystem image from the contents of a tarball ) 
$ cat nginx.tar | docker import - nginx:import                                                                                                                                                    254714ba37221092c47f22a886c7f7497ed65da53d42cf24a4f44e0054305af4

$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
nginx               import              254714ba3722        About an hour ago   242.8 MB
my-nginx            latest              69f023fe6476        About an hour ago   267.8 MB
nginx               latest              9bc094d3c806        About an hour ago   267.8 MB
Enter fullscreen mode Exit fullscreen mode
  • info ( Display system-wide information ) 
$ docker info
Enter fullscreen mode Exit fullscreen mode
  • inspect ( Return low-level information on a container ) 
$ docker inspect 69e4211b5653
Enter fullscreen mode Exit fullscreen mode
  • kill ( Kill a running container ) 
$ docker ps                        
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS              PORTS               NAMES
69e4211b5653        nginx:latest        /usr/sbin/nginx -g '   About an hour ago   Up 23 minutes       80/tcp              distracted_curie    

$ docker kill 69e4211b5653
69e4211b5653

$ docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
Enter fullscreen mode Exit fullscreen mode
  • load ( Load an image from a tar archive ) 
$ docker load < nginx.tar
Enter fullscreen mode Exit fullscreen mode
  • login ( Register or log in to the Docker registry server ) 
$ docker login
Username: dongri 
Password: ***
Email: ***@gmail.com
Login Succeeded

$ docker pull ubuntu
Enter fullscreen mode Exit fullscreen mode
  • logs ( Fetch the logs of a container ) 
$ docker logs 108233ba9a1d
Enter fullscreen mode Exit fullscreen mode
  • port ( Lookup the public-facing port that is NAT-ed to PRIVATE_PORT ) 
$ docker run -d -p 80:80 nginx
108233ba9a1df0aa199a8392d052f3c0cd8e7929bdeff6d5fa52ac47a75aa603

$ docker port 108233ba9a1d 80
0.0.0.0:80
Enter fullscreen mode Exit fullscreen mode
  • pause ( Pause all processes within a container ) 
$ docker pause 108233ba9a1d
108233ba9a1d

$ open http://localhost:8080
Enter fullscreen mode Exit fullscreen mode
  • ps ( List containers ) 
$ docker ps

$ docker ps -a

$ docker ps -a -q
Enter fullscreen mode Exit fullscreen mode
  • pull ( Pull an image or a repository from a Docker registry server ) 
$ docker pull golang:1.4rc1
Enter fullscreen mode Exit fullscreen mode
  • push ( Push an image or a repository to a Docker registry server ) 
$ docker run -i -t -d golang
921dc8b1555af7507f8669883724047b4cc114be0681a07f86def

$ docker ps
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS                   PORTS                NAMES
16f79ec35b99        golang:latest       /bin/bash              About an hour ago   Up 4 seconds                                  focused_newton      
108233ba9a1d        nginx:latest        /usr/sbin/nginx -g '   About an hour ago   Up 15 minutes (Paused)   0.0.0.0:80->80/tcp   nostalgic_almeida   

$ docker commit 16f79ec35b99 dongri/golang
da5a0042ad9ac478c38fc743c8f981f292a9aefd41ac54276a6617c319719ad1

$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
dongri/golang       latest              da5a0042ad9a        About an hour ago   448 MB
nginx               import              254714ba3722        About an hour ago   242.8 MB
my-nginx            latest              69f023fe6476        2 hours ago         267.8 MB
nginx               latest              9bc094d3c806        2 hours ago         267.8 MB
golang              1.4rc1              a9e27473d0f8        2 days ago          467.7 MB
golang              latest              ebd3fd90ae2e        2 days ago          448 MB

$ docker push dongri/golang
The push refers to a repository [dongri/golang] (len: 1)
Sending image list
Pushing repository dongri/golang (1 tags)
511136ea3c5a: Image already pushed, skipping 
36fd425d7d8a: Image already pushed, skipping 
aaabd2b41e22: Image already pushed, skipping 
cd9d7733886c: Image already pushed, skipp
da5a0042ad9a: Image successfully pushed 
Pushing tag for rev [da5a0042ad9a] on {https://cdn-registry-1.docker.io/v1/repositories/dongri/golang/tags/latest}
Enter fullscreen mode Exit fullscreen mode
  • restart ( Restart a running container ) 
$ docker ps
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS                   PORTS                NAMES
16f79ec35b99        golang:latest       /bin/bash              About an hour ago   Up 3 minutes                                  focused_newton      
108233ba9a1d        nginx:latest        /usr/sbin/nginx -g '   About an hour ago   Up 18 minutes (Paused)   0.0.0.0:80->80/tcp   nostalgic_almeida   

$ docker restart 16f79ec35b99
16f79ec35b99
Enter fullscreen mode Exit fullscreen mode
  • rm ( Remove one or more containers ) 
$ docker ps -a
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS
16f79ec35b99        golang:latest       /bin/bash              About an hour ago   Up 55 seconds
714a086c9e4d        golang:latest       /bin/bash              About an hour ago   Exited (1) 4 minutes ago

$ docker rm 714a086c9e4d
714a086c9e4d

$ docker ps -a          
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS
16f79ec35b99        golang:latest       /bin/bash              About an hour ago   Up About a minute
Enter fullscreen mode Exit fullscreen mode
  • rmi ( Remove one or more images ) 
$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
dongri/golang       latest              da5a0042ad9a        About an hour ago   448 MB
nginx               import              254714ba3722        About an hour ago   242.8 MB
my-nginx            latest              69f023fe6476        2 hours ago         267.8 MB

$ docker rmi 69f023fe6476

$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
dongri/golang       latest              da5a0042ad9a        About an hour ago   448 MB
nginx               import              254714ba3722        About an hour ago   242.8 MB
Enter fullscreen mode Exit fullscreen mode
  • run ( Run a command in a new container ) 
$ docker run -d nginx
Enter fullscreen mode Exit fullscreen mode
  • save ( Save an image to a tar archive ) 
$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
dongri/golang       latest              da5a0042ad9a        About an hour ago   448 MB
nginx               import              254714ba3722        About an hour ago   242.8 MB

$ docker save nginx > mynginx.tar
Enter fullscreen mode Exit fullscreen mode
  • search ( Search for an image on the Docker Hub ) 
$ docker search dongri
NAME            DESCRIPTION   STARS     OFFICIAL   AUTOMATED
dongri/coreos                 2                    
dongri/node                   1                    
dongri/nginx                  0                    
dongri/redis                  0                    
dongri/golang                 0
Enter fullscreen mode Exit fullscreen mode
  • start ( Start a stopped container ) 
docker ps -a
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS                           PORTS
108233ba9a1d        nginx:latest        /usr/sbin/nginx -g '   About an hour ago   Up 27 minutes (Paused)           0.0.0.0:80->80/tcp
269367b4bd87        nginx:latest        /usr/sbin/nginx -g '   About an hour ago   Exited (-1) 28 minutes ago

$ docker start 269367b4bd87
269367b4bd87

$ docker ps
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS                   PORTS                NAMES
108233ba9a1d        nginx:latest        /usr/sbin/nginx -g '   About an hour ago   Up 27 minutes (Paused)   0.0.0.0:80->80/tcp   nostalgic_almeida   
269367b4bd87        nginx:latest        /usr/sbin/nginx -g '   About an hour ago   Up 2 seconds             80/tcp               kickass_perlman
Enter fullscreen mode Exit fullscreen mode
  • stop ( Stop a running container ) 
$ docker ps
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS                   PORTS                NAMES
108233ba9a1d        nginx:latest        /usr/sbin/nginx -g '   About an hour ago   Up 27 minutes (Paused)   0.0.0.0:80->80/tcp   nostalgic_almeida   
269367b4bd87        nginx:latest        /usr/sbin/nginx -g '   About an hour ago   Up 2 seconds             80/tcp               kickass_perlman     

$ docker stop 269367b4bd87
Enter fullscreen mode Exit fullscreen mode
  • tag ( Tag an image into a repository ) 
$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
dongri/golang       latest              da5a0042ad9a        About an hour ago   448 MB
nginx               import              254714ba3722        About an hour ago   242.8 MB

$ docker tag 254714ba3722 nginx:export
$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
dongri/golang       latest              da5a0042ad9a        About an hour ago   448 MB
nginx               import              254714ba3722        About an hour ago   242.8 MB
nginx               export              254714ba3722        About an hour ago   242.8 MB
Enter fullscreen mode Exit fullscreen mode
  • top ( Lookup the running processes of a container ) 
$ docker ps
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS                   PORTS                NAMES
108233ba9a1d        9bc094d3c806        /usr/sbin/nginx -g '   About an hour ago   Up 38 minutes (Paused)   0.0.0.0:80->80/tcp   nostalgic_almeida   

$ docker top 108233ba9a1d
PID                 USER                COMMAND
1658                root                nginx: master process /usr/sbin/nginx -g daemon off;
1668                499                 nginx: worker process
Enter fullscreen mode Exit fullscreen mode
  • unpause ( Unpause a paused container ) 
$ docker ps
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS                   PORTS                NAMES
108233ba9a1d        9bc094d3c806        /usr/sbin/nginx -g '   About an hour ago   Up 38 minutes (Paused)   0.0.0.0:80->80/tcp   nostalgic_almeida   

$ docker unpause 108233ba9a1d
108233ba9a1d

$ open http://localhost:8080
Enter fullscreen mode Exit fullscreen mode
  • version ( Show the Docker version information ) 
$ docker version
Client version: 1.1.1
Client API version: 1.13
Go version (client): go1.2.1
Git commit (client): bd609d2
Server version: 1.1.2
Server API version: 1.13
Go version (server): go1.2.1
Git commit (server): d84a070
Enter fullscreen mode Exit fullscreen mode
  • wait ( Block until a container stops, then print its exit code ) 
$ docker wait 108233ba9a1d

$ docker stop 108233ba9a1d
Enter fullscreen mode Exit fullscreen mode

Top comments (0)

Read next

dobralin profile image

Is Docker Compose Ready for Production? Here’s What You Need to Know

Alin Dobra -

shaiksalam9182 profile image

Introduction to Kubernetes and AWS EKS - Part 1

Salam Shaik -

devkishor8007 profile image

Nodejs | Docker | Multi-stage

Kishor Kc -

rimelek profile image

Comparing 3 Docker container runtimes - Runc, gVisor and Kata Containers

Ákos Takács -