26 ñàìûõ èçâåñòíûõ êîìàíä Docker (ñ ïðèìåðàìè)

Docker - ýòî ñèñòåìà êîíòåéíåðèçàöèè, êîòîðàÿ ïîçâîëÿåò óïàêîâûâàòü è çàïóñêàòü ïðèëîæåíèå âìåñòå ñî âñåìè åãî çàâèñèìîñòÿìè âíóòðè êîíòåéíåðà. Êîãäà âû ðàáîòàåòå ñ Docker, âû äîëæíû çíàòü íåêîòîðûå êîìàíäû. Ýòà ñòàòüÿ âñåöåëî ïîñâÿùåíà èìåííî ýòîìó.

1. Ïîèñê âåðñèè

Îäíà èç ïåðâûõ âåùåé, êîòîðóþ âàì íóæíî çíàòü, ýòî òî, êàê íàéòè âåðñèþ Docker, óñòàíîâëåííîãî íà âàøåì êîìïüþòåðå. 

geekflare@geekflare:/home/geekflare$ docker --version

Docker version 18.09.6, build 481bc77

2. Çàãðóçêà îáðàçà

Äîïóñòèì, ÷òî âû õîòèòå ïîëó÷èòü îáðàç Docker èç Dockerhub (ðåïîçèòîðèé Docker). Íà ñëåäóþùåì ïðèìåðå ìû ïîêàçàëè, êàê ìîæíî èçâëå÷ü îáðàç HTTP-ñåðâåðà Apache.

geekflare@geekflare:/home/geekflare$ docker pull httpd
Using default tag: latest
latest: Pulling from library/httpd
f5d23c7fed46: Pull complete
b083c5fd185b: Pull complete
bf5100a89e78: Pull complete
98f47fcaa52f: Pull complete
622a9dd8cfed: Pull complete
Digest: sha256:8bd76c050761610773b484e411612a31f299dbf7273763103edbda82acd73642
Status: Downloaded newer image for httpd:latest
geekflare@geekflare:/home/geekflare$

3. Îáðàçû

Âû ìîæåòå ïîëó÷èòü ñïèñîê âñåõ îáðàçîâ Docker, çàãðóæåííûõ â ñèñòåìó, ñ òàêîé èíôîðìàöèåé, êàê òåã/èäåíòèôèêàòîð îáðàçà/ðàçìåð è ò.ä.

geekflare@geekflare:/home/geekflare$ docker images
REPOSITORY          TAG            IMAGE ID        CREATED             SIZE
httpd              latest        ee39f68eb241     2 days ago          154MB
hello-world        latest        fce289e99eb9    6 months ago        1.84kB
sequenceiq          2.7          789fa0a3b911    4 years ago         1.76GB
/hadoop-docker

4. Çàïóñê

Âû ìîæåòå çàïóñòèòü îáðàç Docker, íà êîòîðûé âû ññûëàåòåñü â êîìàíäå. Ýòà êîìàíäà ñîçäàñò êîíòåéíåð Docker, â êîòîðîé çàïóñòèòüñÿ HTTP-ñåðâåð Apache.

geekflare@geekflare:/home/geekflare$ docker run -it -d httpd
09ca6feb6efc0578951a3e2557ed5855b2edda39a795d9703eb54d975930fe6e

5. Êàêèå êîíòåéíåðû çàïóùåíû?

Êîìàíäà ps ïåðå÷èñëÿåò âñå êîíòåéíåðû Docker, êîòîðûå çàïóùåíû, ñî âñåìè ñîïóòñòâóþùèìè ñâåäåíèÿìè î íèõ. 

geekflare@geekflare:/home/geekflare$ docker ps
CONTAINER ID     IMAGE           COMMAND           CREATED         
09ca6feb6efc     httpd     "httpd-foreground"   36 seconds ago      
STATUS              PORTS            NAMES
Up 33 seconds       80/tcp       suspicious_bell

Êàê âû ìîæåòå âèäåòü, â ýòîì êîíòåéíåðå Docker çàïóùåí ñåðâåð Apache.

6. ps –a

Ïåðå÷èñëÿåò âñå êîíòåéíåðû Docker, êîòîðûå áûëè çàïóøåíû, èç êîòîðûõ âû âûøëè èëè êîòîðûå âû îñòàíîâèëè, ñî âñåìè ñîïóòñòâóþùèìè ñâåäåíèÿìè î íèõ.

geekflare@geekflare:/home/geekflare$ docker ps -a
CONTAINER ID        IMAGE                                COMMAND                  
09ca6feb6efc        httpd                            "httpd-foreground"  
2f6fb3381078        sequenceiq/hadoop-docker:2.7.0   "/etc/bootstrap.sh -d"   
9f397feb3a46        sequenceiq/hadoop-docker:2.7.0   "/etc/bootstrap.sh -…"   
9b6343d3b5a0        hello-world                      "/hello"                 
CREATED           STATUS                     PORTS              NAMES      
51 seconds ago    Up 49 seconds              80/tcp         suspicious_bell
2 weeks ago       Exited (137) 9 days                       quizzical_raman   
2 weeks ago       Exited (255) 2 weeks ago   2122/tcp,   determined_ritchie                                                                                                                                                                                                                                                                                                                                                                                  
8030-8033/tcp, 
8040/tcp, 
8042/tcp, 
8088/tcp, 
19888/tcp, 
49707/tcp, 
50010/tcp, 
50020/tcp, 
50070/tcp, 
50075/tcp, 
50090/tcp   
2 weeks ago       Exited (0) 2 weeks ago                     peaceful_mclean                                                                                                                          

7. exec

Âû ìîæåòå ïîëó÷èòü äîñòóï ê êîíòåéíåðó Docker è çàïóñòèòü êîìàíäû âíóòðè ýòîãî êîíòåéíåðà.  äàííîì ïðèìåðå ÿ ïûòàþñü ïîëó÷èòü äîñòóï ê êîíòåéíåðó ñåðâåðà Apache.

Äëÿ òîãî, ÷òîáû âûéòè èç êîíòåéíåðà, ââåäèòå exit è íàæìèòå Enter.

geekflare@geekflare:/home/geekflare$ docker exec -it 09ca6feb6efc bash
root@09ca6feb6efc:/usr/local/apache2# ls
bin  build  cgi-bin  conf  error  htdocs  icons  include  logs                modules
root@09ca6feb6efc:/usr/local/apache2#

8. Óäàëåíèå êîíòåéíåðà

Âû ìîæåòå óäàëèòü êîíòåéíåð Docker, óêàçàâ èäåíòèôèêàòîð êîíòåéíåðà â êîìàíäå.

geekflare@geekflare:/home/geekflare$ docker rm 9b6343d3b5a0
9b6343d3b5a0
Çàïóñòèòå ñëåäóþùóþ êîìàíäó äëÿ òîãî, ÷òîáû ïðîâåðèòü, áûë ëè óäàëåí êîíòåéíåð.
geekflare@geekflare:/home/geekflare$ docker ps -a
CONTAINER ID        IMAGE                            COMMAND                  
09ca6feb6efc        httpd                            "httpd-foreground"       
2f6fb3381078        sequenceiq/hadoop-docker:2.7.0   "/etc/bootstrap.sh -d"   
9f397feb3a46        sequenceiq/hadoop-docker:2.7.0   "/etc/bootstrap.sh -…"   
CREATED              STATUS                    PORTS         NAMES    
About a minute ago   Up About a minute         80/tcp        suspicious_bell    
2 weeks ago          Exited (137) 9 days ago                 quizzical_raman   
2 weeks ago          Exited (255) 2 weeks ago   2122/tcp, determined_ritchie                                                                                                                                                                                                                                                                                                                                                                           
8030-8033/tcp, 
8040/tcp, 
8042/tcp, 
8088/tcp, 
19888/tcp, 
49707/tcp, 
50010/tcp, 
50020/tcp, 
50070/tcp, 
50075/tcp, 
50090/tcp   

9. Óäàëåíèå îáðàçà

Âû ìîæåòå óäàëèòü îáðàç Docker, óêàçàâ èäåíòèôèêàòîð îáðàçà â êîìàíäå. 

geekflare@geekflare:/home/geekflare$ docker rmi fce289e99eb9
Untagged: hello-world:latest
Untagged: hello-world@sha256:41a65640635299bab090f783209c1e3a3f11934cf7756b09cb2f1e02147c6ed8
Deleted: sha256:fce289e99eb9bca977dae136fbe2a82b6b7d4c372474c9235adc1741675f587e
Deleted: sha256:af0b15c8625bb1938f1d7b17081031f649fd14e6b233688eea3c5483994a66a3
geekflare@geekflare:/home/geekflare$

10. Ïåðåçàïóñê êîíòåéíåðà

Âû ìîæåòå ïåðåçàïóñòèòü êîíòåéíåð Docker, óêàçàâ èäåíòèôèêàòîð êîíòåéíåðà â êîìàíäå.

geekflare@geekflare:/home/geekflare$ docker restart 09ca6feb6efc
09ca6feb6efc

Çàïóñòèòå ñëåäóþùóþ êîìàíäó è ïðîâåðüòå ïàðàìåòð STATUS äëÿ òîãî, ÷òîáû óáåäèòüñÿ, ÷òî êîíòåéíåð áûë çàïóùåí äîëæíûì îáðàçîì.

geekflare@geekflare:/home/geekflare$ docker ps
CONTAINER ID        IMAGE               COMMAND              CREATED             09ca6feb6efc        httpd               "httpd-foreground"   6 minutes ago       
STATUS              PORTS               NAMES
Up 9 seconds        80/tcp              suspicious_bell

11. Îñòàíîâêà êîíòåéíåðà 

Âû ìîæåòå îñòàíîâèòü êîíòåéíåð Docker, óêàçàâ èäåíòèôèêàòîð êîíòåéíåðà â êîìàíäå.

geekflare@geekflare:/home/geekflare$ docker stop 09ca6feb6efc
09ca6feb6efc

Çàïóñòèòå ñëåäóþùóþ êîìàíäó äëÿ òîãî, ÷òîáû ïðîâåðèòü, êîíòåéíåð âñå åùå ðàáîòàåò èëè áûë îñòàíîâëåí. 

geekflare@geekflare:/home/geekflare$ docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

12. Çàïóñê êîíòåéíåðà

Ýòà êîìàíäà çàïóñêàåò êîíòåéíåð Docker, èäåíòèôèêàòîð êîòîðîãî áûë óêàçàí â íåé.

geekflare@geekflare:/home/geekflare$ docker start 09ca6feb6efc
09ca6feb6efc

Çàïóñòèòå ñëåäóþùóþ êîìàíäó äëÿ òîãî, ÷òîáû ïðîâåðèòü, çàïóñòèëñÿ ëè êîíòåéíåð. 

geekflare@geekflare:/home/geekflare$ docker ps
CONTAINER ID        IMAGE               COMMAND              CREATED             
09ca6feb6efc        httpd               "httpd-foreground"   8 minutes ago       
STATUS              PORTS               NAMES
Up 3 seconds        80/tcp              suspicious_bell

13. Óíè÷òîæåíèå êîíòåéíåðà

Ýòà êîìàíäà ìîìåíòàëüíî ïðåêðàùàåò ðàáîòó êîíòåéíåðà, à êîìàíäà stop îñòàíàâëèâàåò ðàáîòó êîíòåéíåðà êîððåêòíî – â ýòîì è åñòü ðàçíèöà ìåæäó êîìàíäàìè kill è stop.

geekflare@geekflare:/home/geekflare$ docker kill 09ca6feb6efc
09ca6feb6efc

Çàïóñòèòå ñëåäóþùóþ êîìàíäû äëÿ òîãî, ÷òîáû óáåäèòüñÿ, ÷òî êîíòåéíåð áûë óíè÷òîæåí.

geekflare@geekflare:/home/geekflare$ docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

14. Ôèêñàöèÿ èçìåíåíèé

Âû ìîæåòå ñîõðàíèòü íîâûé îáðàç Docker â ëîêàëüíîé ñèñòåìå, óêàçàâ èäåíòèôèêàòîð êîíòåéíåðà â êîìàíäå. Â ïðèìåðå íèæå geekflare – ýòî èìÿ ïîëüçîâàòåëÿ, à httpd_image – ýòî èìÿ îáðàçà. 

geekflare@geekflare:/home/geekflare$ docker commit 09ca6feb6efc geekflare/httpd_image
sha256:d1933506f4c1686ab1a1ec601b1a03a17b41decbc21d8acd893db090a09bb31c

15. Âõîä â ñèñòåìó

Âû ìîæåòå âîéòè â ñèñòåìó Dockerhub. Ïåðåä âõîäîì â ñèñòåìó ó âàñ çàïðîñÿò ó÷åòíûå äàííûå.

geekflare@geekflare:/home/geekflare$ docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username: geekflare
Password:
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store
Login Succeeded

16. Äîáàâëåíèå îáðàçà

Âû ìîæåòå çàãðóçèòü îáðàç Docker â Dockerhub, óêàçàâ èìÿ îáðàçà â êîìàíäå.

geekflare@geekflare:/home/geekflare$ docker push geekflare/httpd_image
The push refers to repository [docker.io/geekflare/httpd_image]
734d9104a6a2: Pushed
635721fc6973: Mounted from library/httpd
bea448567d6c: Mounted from library/httpd
bfaa5f9c3b51: Mounted from library/httpd
9d542ac296cc: Mounted from library/httpd
d8a33133e477: Mounted from library/httpd
latest: digest: sha256:3904662761df9d76ef04ddfa5cfab764b85e3eedaf10071cfbe2bf77254679ac size: 1574

17. Ñåòü Docker

Ñ ïîìîùüþ ñëåäóþùåé êîìàíäû âû ìîæåòå ïîëó÷èòü âñþ ñåòåâóþ èíôîðìàöèþ â ðàìêàõ êëàñòåðà.

geekflare@geekflare:/home/geekflare$ docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
85083e766f04        bridge              bridge              local
f51d1f3379e0        host                host                local
5e5d9a192c00        none                null                local

Êðîìå òîãî, åñòü íåñêîëüêî äðóãèõ êîìàíä, ñâÿçàííûõ ñ ñåòüþ Docker.

geekflare@geekflare:/home/geekflare$ docker network
Usage:  docker network COMMAND
Manage networks
Commands:
connect     Connect a container to a network
create      Create a network
disconnect  Disconnect a container from a network
inspect     Display detailed information on one or more networks
ls          List networks
prune       Remove all unused networks
rm          Remove one or more networks
Run 'docker network COMMAND --help' for more information on a command.

18. Èíôîðìàöèÿ î Docker

Âû ìîæåòå ïîëó÷èòü ïîäðîáíóþ èíôîðìàöèþ î Docker, êîòîðûé óñòàíîâëåí â âàøåé ñèñòåìå, â òîì ÷èñëå âåðñèþ ÿäðà, êîëè÷åñòâî êîíòåéíåðîâ è îáðàçîâ è ò.ä.

geekflare@geekflare:/home/geekflare$ docker info
Containers: 3
Running: 1
Paused: 0
Stopped: 2
Images: 3
Server Version: 18.09.6
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: bb71b10fd8f58240ca47fbb579b9d1028eea7c84
runc version: 2b18fe1d885ee5083ef9f0838fee39b62d653e30
init version: fec3683
Security Options:
apparmor
seccomp
Profile: default
Kernel Version: 4.18.0-25-generic
Operating System: Ubuntu 18.10
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 4.982GiB
Name: geekflare
ID: RBCP:YGAP:QG6H:B6XH:JCT2:DTI5:AYJA:M44Z:ETRP:6TO6:OPAY:KLNJ
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Username: geekflare
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
Product License: Community Engine

19. Êîïèðîâàíèå ôàéëà

Âû ìîæåòå ñêîïèðîâàòü ôàéë èç êîíòåéíåðà Docker â ëîêàëüíóþ ñèñòåìó. 

 äàííîì ïðèìåðå ÿ êîïèðóþ ôàéë http.pid, êîòîðûé ðàñïîëîæåí âíóòðè êîíòåéíåðà ñ èäåíòèôèêàòîðîì 09ca6feb6efc, â /home/geekflare/.

geekflare@geekflare:/home/geekflare$ sudo docker cp 09ca6feb6efc:/usr/local/apache2/logs/httpd.pid /home/geekflare/
[sudo] password for geekflare:

Çàïóñòèòå ñëåäóþùóþ êîìàíäó äëÿ òîãî, ÷òîáû óáåäèòüñÿ, ÷òî ôàéë áûë ñêîïèðîâàí.

geekflare@geekflare:/home/geekflare$ ls
Desktop  Documents  example  examples.desktop  httpd.pid  nginx_new.yml  nginx.yml

20. Ïðîâåðêà èñòîðèè

Ìîæíî ïðîñìîòðåòü èñòîðèþ îáðàçà Docker, óêàçàâ åãî èìÿ â êîìàíäå.

geekflare@geekflare:/home/geekflare$ docker history httpd
IMAGE               CREATED             CREATED BY                  
ee39f68eb241        2 days ago          /bin/sh -c #(nop)  CMD ["httpd-
foreground"]    
<missing>           2 days ago          /bin/sh -c #(nop)  EXPOSE 80                   
<missing>           2 days ago          /bin/sh -c #(nop) COPY 
file:c432ff61c4993ecd…   
<missing>           4 days ago          /bin/sh -c set -eux;
savedAptMark="$(apt-m… 
<missing>           4 days ago          /bin/sh -c #(nop)  ENV HTTPD_PATCHES=          
<missing>           4 days ago          /bin/sh -c #(nop)  ENV 
HTTPD_SHA256=b4ca9d05… 
<missing>           4 days ago          /bin/sh -c #(nop)  ENV
HTTPD_VERSION=2.4.39   
<missing>           4 days ago          /bin/sh -c set -eux;  apt-get update;
apt-g…
<missing>           4 days ago          /bin/sh -c #(nop) WORKDIR
/usr/local/apache2
<missing>           4 days ago          /bin/sh -c mkdir -p "$HTTPD_PREFIX"
&& chow…
<missing>           4 days ago          /bin/sh -c #(nop)  ENV
PATH=/usr/local/apach…
<missing>           4 days ago          /bin/sh -c #(nop)  ENV
HTTPD_PREFIX=/usr/loc…
<missing>           5 days ago          /bin/sh -c #(nop)  CMD ["bash"]                
<missing>           5 days ago          /bin/sh -c #(nop) ADD
file:71ac26257198ecf6a…
SIZE      COMMENT       
0B
0B
138B
49.1B
0B
0B
0B
35.4B
0B
0B
0B
0B
0B
69.2B                       

21. Ïðîâåðêà æóðíàëîâ

Ìîæíî ïðîñìîòðåòü æóðíàëû êîíòåéíåðà Docker, óêàçàâ èäåíòèôèêàòîð êîíòåéíåðà â êîìàíäå.

geekflare@geekflare:/home/geekflare$ docker logs 09ca6feb6efc
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Set the 'ServerName' directive globally to suppress this message
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Set the 'ServerName' directive globally to suppress this message
[Mon Jul 15 14:01:55.400472 2019] [mpm_event:notice] [pid 1:tid 140299791516800] AH00489: Apache/2.4.39 (Unix) configured -- resuming normal operations
[Mon Jul 15 14:01:55.400615 2019] [core:notice] [pid 1:tid 140299791516800] AH00094: Command line: 'httpd -D FOREGROUND'
[Mon Jul 15 14:08:36.798229 2019] [mpm_event:notice] [pid 1:tid 140299791516800] AH00491: caught SIGTERM, shutting down
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Set the 'ServerName' directive globally to suppress this message
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Set the 'ServerName' directive globally to suppress this message
[Mon Jul 15 14:08:38.259870 2019] [mpm_event:notice] [pid 1:tid 139974087980160] AH00489: Apache/2.4.39 (Unix) configured -- resuming normal operations
[Mon Jul 15 14:08:38.260007 2019] [core:notice] [pid 1:tid 139974087980160] AH00094: Command line: 'httpd -D FOREGROUND'
[Mon Jul 15 14:09:01.540647 2019] [mpm_event:notice] [pid 1:tid 139974087980160] AH00491: caught SIGTERM, shutting down
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Set the 'ServerName' directive globally to suppress this message
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Set the 'ServerName' directive globally to suppress this message
[Mon Jul 15 14:10:43.782606 2019] [mpm_event:notice] [pid 1:tid 140281554879616] AH00489: Apache/2.4.39 (Unix) configured -- resuming normal operations
[Mon Jul 15 14:10:43.782737 2019] [core:notice] [pid 1:tid 140281554879616] AH00094: Command line: 'httpd -D FOREGROUND'
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Set the 'ServerName' directive globally to suppress this message
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Set the 'ServerName' directive globally to suppress this message
[Mon Jul 15 14:14:08.270906 2019] [mpm_event:notice] [pid 1:tid 140595254346880] AH00489: Apache/2.4.39 (Unix) configured -- resuming normal operations
[Mon Jul 15 14:14:08.272628 2019] [core:notice] [pid 1:tid 140595254346880] AH00094: Command line: 'httpd -D FOREGROUND'

22. Ïîèñê îáðàçà

Âû ìîæåòå íàéòè îáðàç Docker â Dockerhub, óêàçàâ åãî èìÿ â êîìàíäå.

geekflare@geekflare:/home/geekflare$ docker search hadoop
NAME                             DESCRIPTION                                     
sequenceiq/hadoop-docker         An easy way to try Hadoop                       
uhopper/hadoop                   Base Hadoop image with dynamic
configuration…
harisekhon/hadoop                Apache Hadoop (HDFS + Yarn, tags 2.2 - 2.8)     
bde2020/hadoop-namenode          Hadoop namenode of a hadoop cluster             
kiwenlau/hadoop                  Run Hadoop Cluster in Docker Containers 
izone/hadoop                     Hadoop 2.8.5 Ecosystem fully distributed,
Ju…
uhopper/hadoop-namenode          Hadoop namenode                                 
bde2020/hadoop-datanode          Hadoop datanode of a hadoop cluster             
singularities/hadoop             Apache Hadoop                                   
uhopper/hadoop-datanode          Hadoop datanode                                 
harisekhon/hadoop-dev            Apache Hadoop (HDFS + Yarn) + Dev Tools + 
Gi…
STARS               OFFICIAL            AUTOMATED
611                                     [OK]
98                                      [OK]
54                                      [OK]
22                                      [OK]
19                                      [OK]
14                                      [OK]
9                                       [OK]
9                                       [OK]
8                                       [OK]
7                                       [OK]
6                                       [OK]

23. Îáíîâëåíèå êîíôèãóðàöèè

Âû ìîæåòå îáíîâèòü êîíôèãóðàöèþ êîíòåéíåðà. Íèæå ïðåäñòàâëåíû âñå ïàðàìåòðû îáíîâëåíèÿ.

geekflare@geekflare:/home/geekflare$ docker update --help
Usage:  docker update [OPTIONS] CONTAINER [CONTAINER...]
Update configuration of one or more containers
Options:
--blkio-weight uint16        Block IO (relative weight), between 10 and 1000, or 0 to disable
(default 0)
--cpu-period int             Limit CPU CFS (Completely Fair Scheduler) period
--cpu-quota int              Limit CPU CFS (Completely Fair Scheduler) quota
--cpu-rt-period int          Limit the CPU real-time period in microseconds
--cpu-rt-runtime int         Limit the CPU real-time runtime in microseconds
-c, --cpu-shares int             CPU shares (relative weight)
--cpus decimal               Number of CPUs
--cpuset-cpus string         CPUs in which to allow execution (0-3, 0,1)
--cpuset-mems string         MEMs in which to allow execution (0-3, 0,1)
--kernel-memory bytes        Kernel memory limit
-m, --memory bytes               Memory limit
--memory-reservation bytes   Memory soft limit
--memory-swap bytes          Swap limit equal to memory plus swap: '-1' to enable unlimited swap
--restart string             Restart policy to apply when a container exits

Çàïóñòèòå ñëåäóþùóþ êîìàíäó äëÿ òîãî, ÷òîáû îáíîâèòü êîíôèãóðàöèþ ÖÏ êîíòåéíåðà Docker, óêàçàâ åãî èäåíòèôèêàòîð â êîìàíäå.

geekflare@geekflare:/home/geekflare$ docker update -c 1 2f6fb3381078
2f6fb3381078

24. Ñîçäàíèå òîìà

Âû ìîæåòå ñîçäàòü òîì, êîòîðûé êîíòåéíåð Docker áóäåò èñïîëüçîâàòü â êà÷åñòâå õðàíèëèùà äàííûõ.

geekflare@geekflare:/home/geekflare$ docker volume create
7e7bc886f69bb24dbdbf19402e31102a25db91bb29c56cca3ea8b0c611fd9ad0

Çàïóñòèòå ñëåäóþùóþ êîìàíäó äëÿ òîãî, ÷òîáû óáåäèòüñÿ, ÷òî òîì áûë ñîçäàí.

geekflare@geekflare:/home/geekflare$ docker volume ls
DRIVER      VOLUME NAME
local       7e7bc886f69bb24dbdbf19402e31102a25db91bb29c56cca3ea8b0c611fd9ad0

25. Óñòàíîâêà ïëàãèíà

Âû ìîæåòå óñòàíîâèòü ïëàãèí Docker vieux/sshfs, óñòàíîâèâ ïàðàìåòð ñðåäû îòëàäêè íà 1.

geekflare@geekflare:/home/geekflare$ docker plugin install vieux/sshfs DEBUG=1
Plugin "vieux/sshfs" is requesting the following privileges:
- network: [host]
- mount: [/var/lib/docker/plugins/]
- mount: []
- device: [/dev/fuse]
- capabilities: [CAP_SYS_ADMIN]
Do you grant the above permissions? [y/N] y
latest: Pulling from vieux/sshfs
52d435ada6a4: Download complete
Digest: sha256:1d3c3e42c12138da5ef7873b97f7f32cf99fb6edde75fa4f0bcf9ed277855811
Status: Downloaded newer image for vieux/sshfs:latest
Installed plugin vieux/sshfs
Run the below command to list the docker plugins.
geekflare@geekflare:/home/geekflare$ docker plugin ls
ID                  NAME                 DESCRIPTION               ENABLED
2a32d1fb95af        vieux/sshfs:latest   sshFS plugin for Docker   true

26. Âûõîä èç ñèñòåìû

Âû ìîæåòå âûéòè èç ñèñòåìû Dockerhub.

geekflare@geekflare:/home/geekflare$ docker logout
Removing login credentials for https://index.docker.io/v1/

Çàêëþ÷åíèå

Íàäåþñü, ÷òî â íàñòîÿùåìó ìîìåíòó âû äîñòàòî÷íî õîðîøî ïîíÿëè, ÷òî èç ñåáÿ ïðåäñòàâëÿþò êîìàíäû Docker. Èñïðîáóéòå ýòè êîìàíäû â ñâîåé ñðåäå ðàçðàáîòêè èëè òåñòîâîé ñðåäå äëÿ òîãî, ÷òîáû âû ìîãëè îòòî÷èòü ñâîè íàâûêè è ëó÷øå ïîíÿòü, êàê îíè ðàáîòàþò.