Docker Use Summary (four) release image

After installing Docker, start docker

root@slave1:/home/xxx/Documents# service docker start

Stop docker command

root@slave1:/home/xxx/Documents# service docker stop

View running docker version


root@slave1:/home/xxx/Documents# docker --version
Docker version 18.09.7, build 2d0083d

Access to relevant mirrored by pull command

root@slave1:/home/xxx/Documents# docker pull nginx
Using default tag: latest
latest: Pulling from library/nginx
1ab2bdfe9778: Pull complete
a17e64cfe253: Pull complete
e1288088c7a8: Pull complete
Digest: sha256:53ddb41e46de3d63376579acf46f9a41a8d7de33645db47a486de9769201fec9
Status: Downloaded newer image for nginx:latest

After obtaining the image, by docker runmaking it up and running

root@slave1:/home/xxx/Documents# docker run -d -p 8800:80 --name nginx_zhao nginx
780f3120141d2e4c861f3ab190f67d233130b87645db5e93eeef6ada108162fa


root@slave1:/home/xxx/Documents# docker ps -l
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
780f3120141d        nginx               "nginx -g 'daemon of…"   14 seconds ago      Up 12 seconds       0.0.0.0:8800->80/tcp   nginx_zhao

sudo docker ps -a lists all containers, without -a lists only the running

sudo docker run -d -p 8800:80 --name nginx_zhao nginxRepresentation runs the specified image
dudo docker run -d --privileged=true -p 83:80 --name nginx83 nginxrepresentation elevated privileges

Host Host port: internal container port
　　-d background
　　-p 8800: 80 is exposed outside designated internal port container with 8800 proxy 80 corresponds to an external host, like the host
　　--name specify the mirror last name on behalf of nginx container to run there tag plus the tag name, such as nginx: xxx is the latest default
under +8800 port appears, and then visit the host host address map has already been shown that nginx

pull the mirror there are many places to be modified, such as configuration files, use the execcommand to enter the interior of the container is operated

root@slave1:/home/xxx/Documents# docker exec -it 780f3120141d /bin/bash
root@780f3120141d:/# pwd
/
root@780f3120141d:/# ls -l
total 64
drwxr-xr-x   2 root root 4096 Aug 12 00:00 bin
drwxr-xr-x   2 root root 4096 May 13 20:25 boot
drwxr-xr-x   5 root root  340 Sep 11 01:38 dev
drwxr-xr-x   1 root root 4096 Sep 11 01:38 etc
drwxr-xr-x   2 root root 4096 May 13 20:25 home
drwxr-xr-x   1 root root 4096 Aug 15 21:22 lib
drwxr-xr-x   2 root root 4096 Aug 12 00:00 lib64
drwxr-xr-x   2 root root 4096 Aug 12 00:00 media
drwxr-xr-x   2 root root 4096 Aug 12 00:00 mnt
drwxr-xr-x   2 root root 4096 Aug 12 00:00 opt
dr-xr-xr-x 290 root root    0 Sep 11 01:38 proc
drwx------   2 root root 4096 Aug 12 00:00 root
drwxr-xr-x   1 root root 4096 Sep 11 01:38 run
drwxr-xr-x   2 root root 4096 Aug 12 00:00 sbin
drwxr-xr-x   2 root root 4096 Aug 12 00:00 srv
dr-xr-xr-x  13 root root    0 Sep 11 01:38 sys
drwxrwxrwt   1 root root 4096 Aug 15 21:22 tmp
drwxr-xr-x   1 root root 4096 Aug 12 00:00 usr
drwxr-xr-x   1 root root 4096 Aug 12 00:00 var
root@780f3120141d:/# nginx -v
nginx version: nginx/1.17.3
root@780f3120141d:/# exit
exit

By inspectBy mirroring obtain detailed information, grepitem retrieval needs

root@slave1:/home/xxx/Documents# docker inspect nginx_zhao |grep IPAddress
            "SecondaryIPAddresses": null,
            "IPAddress": "172.17.0.2",
                    "IPAddress": "172.17.0.2",

After entering the interior of the container and change, how to generate a new image for the next direct use

root@slave1:/home/xxx/Documents# docker commit nginx_zhao zhao/nginx:v1.0
sha256:75fe4514801e00e544741efa375fe4eb764186f7a9a75d76c27ee488070c84ae
root@slave1:/home/xxx/Documents# docker images
REPOSITORY           TAG                 IMAGE ID            CREATED             SIZE
zhao/nginx           v1.0                75fe4514801e        27 seconds ago      126MB

docker commit nginx_zhao zhao/nginx:v1.0Which nginx_zhaorepresents just modified container name or id, zhao/nginx:v1.0represents the saved image name: back to tag
just committhe mirror image is stored locally, if you want to submit to the network for reference by other people pull to use it?
You can register an account on https://cloud.docker.com/, submitted to the local mirror https://cloud.docker.com/ up.

Reference: Docker technology introduction and practical Docker basic commands to use and publish mirror

Docker Use Summary (four) release image

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