目录
数据卷
1.创建数据卷
[root@openEuler-1 /]# docker volume create test
test
[root@openEuler-1 /]# docker volume ls
DRIVER VOLUME NAME
local test
[root@openEuler-1 /]# docker volume inspect test
[
{
"CreatedAt": "2025-08-23T20:21:27+08:00",
"Driver": "local",
"Labels": {},
"Mountpoint": "/var/lib/docker/volumes/test/_data",
"Name": "test",
"Options": {},
"Scope": "local"
}
]2.绑定数据卷
[root@openEuler-1 /]# docker run -d -P --name web -v /webapp:/opt/webapp nginx:1.17.1
156c0bc3b05a60eb8aac9c8faf6fa6b750830c623c71c8b8cacd02cf6957f8cf
[root@openEuler-1 /]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
156c0bc3b05a nginx:1.17.1 "nginx -g 'daemon of..." 21 seconds ago Up 19 seconds 0.0.0.0:32768->80/tcp web
bf9f9b03a3e2 ubuntu:18.04 "/bin/bash" 40 minutes ago Exited (0) 40 minutes ago trusting_chatterjee
0cf0f6e06be4 f9a80a55f492 "/bin/bash" About an hour ago Exited (0) About an hour ago zen_hypatia
db9442307637 f9a80a55f492 "echo 'hello world'" About an hour ago Exited (0) About an hour ago friendly_benz
3dd062ba408c f9a80a55f492 "/bin/bash" About an hour ago Up About an hour stoic_kilby
b34aa516d411 f9a80a55f492 "echo 111" About an hour ago Exited (0) About an hour ago pedantic_hugle
04247d9734ba f9a80a55f492 "echo hello" About an hour ago Exited (0) About an hour ago gifted_almeida
[root@openEuler-1 /]# ls
afs bin boot dev etc home lib lib64 lost+found media mnt opt proc root run sbin srv sys tmp usr var webapp
[root@openEuler-1 /]# cd /webapp/
[root@openEuler-1 webapp]# ls
[root@openEuler-1 webapp]# touch test.sh
[root@openEuler-1 webapp]# ls
test.sh
[root@openEuler-1 webapp]# docker exec -it web bash
root@156c0bc3b05a:/# ls
bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var
root@156c0bc3b05a:/# cd opt/
root@156c0bc3b05a:/opt# ls
webapp
root@156c0bc3b05a:/opt# cd webapp/
root@156c0bc3b05a:/opt/webapp# ls
test.sh数据卷容器
1.首先创建一个数据卷容器
[root@openEuler-1 webapp]# docker run -it -v /dbdata --name dbdata myubuntu:latest
root@f38e5b2b772e:/# ls
bin dbdata etc lib media opt root sbin sys usr
boot dev home lib64 mnt proc run srv tmp var2.使用--volumes-from来挂载容器中的数据卷
[root@openEuler-1 ~]# docker run -it --volumes-from dbdata --name db1 myubuntu:latest
root@c15c195c0ba7:/# ls
bin dbdata etc lib media opt root sbin sys usr
boot dev home lib64 mnt proc run srv tmp var
root@c15c195c0ba7:/# cd /dbdata/
root@c15c195c0ba7:/dbdata# echo test1 > test1.txt3.查看结果
root@f38e5b2b772e:/# cd dbdata/
root@f38e5b2b772e:/dbdata# ls
test1.txt4.如果删除了挂载的容器，数据卷并不会自动删除，如果想要删除一个数据卷，必须在删除最后一个还挂载的容器时使用docker rm -v 命令来指定删除关联容器。
端口映射与容器互联
[root@openEuler-1 ~]# docker run --name web -d -P -v /webapp/:/usr/share/nginx/html nginx:1.17.1
d1b8df54d5fbf7acfcac71a905e7791479028576ffa2c0c1353dde7effde4746
[root@openEuler-1 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d1b8df54d5fb nginx:1.17.1 "nginx -g 'daemon of..." 7 seconds ago Up 6 seconds 0.0.0.0:32771->80/tcp web
[root@openEuler-1 ~]# docker run --name web1 -d -p 80:80 -v /webapp/:/usr/share/nginx/html nginx:1.17.1
acaf3c021bb96f35451d844bac1a04b9ba5d55c777d85eaa93e2b30444b7b076
[root@openEuler-1 ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
acaf3c021bb9 nginx:1.17.1 "nginx -g 'daemon of..." About a minute ago Up About a minute 0.0.0.0:80->80/tcp web1
d1b8df54d5fb nginx:1.17.1 "nginx -g 'daemon of..." 19 minutes ago Up 19 minutes 0.0.0.0:32771->80/tcp web
[root@openEuler-1 ~]# docker rm -f web1
web1
[root@openEuler-1 ~]# docker run --name web1 -d -p 192.168.1.11:80:80 -v /webapp/:/usr/share/nginx/html nginx:1.17.1
4b8886a595c54feb6d6a417465235f71aa9c9e67270f17da4033fd740de8aef9
[root@openEuler-1 ~]# docker rm -f web1
web1
[root@openEuler-1 ~]# docker run --name web1 -d -p 192.168.1.11::80 -v /webapp/:/usr/share/nginx/html nginx:1.17.1
93ba8e8635fb123d8226c51f70115063640583d69006889f1fca304a7fa27937
[root@openEuler-1 ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
93ba8e8635fb nginx:1.17.1 "nginx -g 'daemon of..." 6 seconds ago Up 5 seconds 192.168.1.11:32768->80/tcp web1
d1b8df54d5fb nginx:1.17.1 "nginx -g 'daemon of..." 21 minutes ago Up 21 minutes 0.0.0.0:32771->80/tcp web互联机制实现便捷互访(基于容器搭建论坛)
wordpress使用MySQL数据库，还需进入数据库进行创建
[root@openEuler-1 ~]# docker run --name db -e MYSQL_ROOT_PASSWORD=123456 -d --re start=always mysql:5.6
Unable to find image 'mysql:5.6' locally
5.6: Pulling from library/mysql
35b2232c987e: Pull complete
fc55c00e48f2: Pull complete
0030405130e3: Pull complete
e1fef7f6a8d1: Pull complete
1c76272398bb: Pull complete
f57e698171b6: Pull complete
f5b825b269c0: Pull complete
dcb0af686073: Pull complete
27bbfeb886d1: Pull complete
6f70cc868145: Pull complete
1f6637f4600d: Pull complete
Digest: sha256:20575ecebe6216036d25dab5903808211f1e9ba63dc7825ac20cb975e34cfcae
Status: Downloaded newer image for mysql:5.6
c102b94bfd37b6c4142f33b30ca846aafd2aa40b107ba0a4a197654bfd116fef
[root@openEuler-1 ~]# docker run --name bbs -p 80:80 --link db:mysql -d --restar t=always wordpress
Unable to find image 'wordpress:latest' locally
latest: Pulling from library/wordpress
396b1da7636e: Pull complete
10b731a0229f: Pull complete
759df4fda9eb: Pull complete
b84170966370: Pull complete
ca765eff712f: Pull complete
71d7acda44c3: Pull complete
aa8657555675: Pull complete
819443c89dcc: Pull complete
05afda0128fe: Pull complete
39fc65577ce1: Pull complete
925278ddd016: Pull complete
5d8fabf0ca99: Pull complete
2e9cb0b67c18: Pull complete
af388e74f0fa: Pull complete
4f4fb700ef54: Pull complete
a9a1a9a7fc0e: Pull complete
e8ecdeb45b2a: Pull complete
23a56f9ae83a: Pull complete
468e488018a8: Pull complete
6a9476a39f47: Pull complete
6d29ea965e3f: Pull complete
7f2e00ef73bc: Pull complete
295267415a53: Pull complete
45cfe8def0e7: Pull complete
Digest: sha256:c5f075fe71c9120e769edbf761bcf20bf0b73d72d49dfde042a06aafcdfef08d
Status: Downloaded newer image for wordpress:latest
f7a1adbef5dbf11ac999b12728be9b11772ef04bf9abb97e3e278bd93136132b
[root@openEuler-1 ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f7a1adbef5db wordpress "docker-entrypoint.s..." 3 minutes ago Up 3 minutes 0.0.0.0:80->80/tcp bbs
c102b94bfd37 mysql:5.6 "docker-entrypoint.s..." 9 minutes ago Up 9 minutes 3306/tcp db
[root@openEuler-1 ~]# docker exec -it bbs bash
root@f7a1adbef5db:/var/www/html# cat /etc/hosts
127.0.0.1 localhost
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
172.17.0.2 mysql c102b94bfd37 db
172.17.0.3 f7a1adbef5db
root@f7a1adbef5db:/var/www/html# env
MYSQL_PORT=tcp://172.17.0.2:3306
MYSQL_PORT_3306_TCP_ADDR=172.17.0.2
MYSQL_NAME=/bbs/mysql
MYSQL_ENV_MYSQL_ROOT_PASSWORD=123456
MYSQL_PORT_3306_TCP_PORT=3306
HOSTNAME=f7a1adbef5db
PHP_VERSION=8.2.29
APACHE_CONFDIR=/etc/apache2
PHP_INI_DIR=/usr/local/etc/php
GPG_KEYS=39B641343D8C104B2B146DC3F9C39DC0B9698544 E60913E4DF209907D8E30D96659A97 C9CF2A795A 1198C0117593497A5EC5C199286AF1F9897469DC
MYSQL_ENV_MYSQL_MAJOR=5.6
PHP_LDFLAGS=-Wl,-O1 -pie
MYSQL_PORT_3306_TCP=tcp://172.17.0.2:3306
PWD=/var/www/html
HOME=/root
MYSQL_ENV_GOSU_VERSION=1.12
PHP_SHA256=475f991afd2d5b901fb410be407d929bc00c46285d3f439a02c59e8b6fe3589c
PHPIZE_DEPS=autoconf dpkg-dev file g++ g cc libc-dev make pkg-config r e2c
TERM=xterm
PHP_URL=https://www.php.net/distributions/php-8.2.29.tar.xz
MYSQL_PORT_3306_TCP_PROTO=tcp
SHLVL=1
PHP_CFLAGS=-fstack-protector-strong -fpic -fpie -O2 -D_LARGEFILE_SOURCE -D_FILE_ OFFSET_BITS=64
APACHE_ENVVARS=/etc/apache2/envvars
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
PHP_ASC_URL=https://www.php.net/distributions/php-8.2.29.tar.xz.asc
PHP_CPPFLAGS=-fstack-protector-strong -fpic -fpie -O2 -D_LARGEFILE_SOURCE -D_FIL E_OFFSET_BITS=64
MYSQL_ENV_MYSQL_VERSION=5.6.51-1debian9
_=/usr/bin/env
[root@openEuler-1 ~]# docker exec -it db bash
root@c102b94bfd37:/# mysql -uroot -p123456 -e 'create database wordpress'
Warning: Using a password on the command line interface can be insecure.
