1. docker 常用命令
#1.查看docker相关信息
[root@hs-10-20-18-175 docker_fc]# docker info
Containers: 12
Running: 1
Paused: 0
Stopped: 11
Images: 13
Server Version: 1.12.6
#2.查看当前机器所有镜像
[root@hs-10-20-18-175 docker_fc]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
192.168.44.132/uc20/uc-zgv20190204000 uc20 5eba8fd7d56f Less than a second ago 20.89 GB
192.168.44.132/o4uft/pf1.0v201801.01.000_20200515fb o4uft 309dd2cc4018 Less than a second ago 25.06 GB
192.168.44.132/uc20/ucv20180104000 uc20 b70848ddab55 7 months ago 21.58 GB
#3.删除镜像文件
[root@hs-10-20-18-175 docker_fc]# docker rmi b7
Untagged: 192.168.44.132/uc20/ucv20180104000:uc20
Untagged: 192.168.44.132/uc20/ucv20180104000@sha256:738c347b34e91fce1d21d6e9c88310e93423543b2fba6ddba39110c23528d938
Deleted: sha256:b70848ddab5566f18c64c15c435802b13366020d43e640277d7acb84beebb02d
Deleted: sha256:a29a209f71bab2550de85a847a698914f583cf37bbd8c6578be0fa48682690a3
Deleted: sha256:86618bf944d184a7758f9552ac66c2c4f719b528a92216d2b213b5abab13c513
#4.其他镜像操作命令
4.1-# docker pull REPOSITORY:TAG 下载镜像文件
4.2-# docker push REPOSITORY:TAG 上传镜像文件
4.3-# docker tag IMAGEID REPOSITORY:TAG 重命名镜像文件
4.4-# docker import pf20170331.tar 通过压缩包制作镜像
#5.查看容器信息
#5.1.查看运行中的容器
[root@hs-10-20-18-175 docker_fc]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
fa6b43edfb6b 192.168.44.132/uc20/uc-zgv20190204000:uc20 "bash" 11 years ago Up 11 years 0.0.0.0:1521->1521/tcp, 0.0.0.0:5123->5123/tcp, 0.0.0.0:5127->5127/tcp, 0.0.0.0:5224->5224/tcp, 0.0.0.0:9003->9003/tcp, 0.0.0.0:9009->9009/tcp, 0.0.0.0:9898->9898/tcp, 0.0.0.0:15827->15827/tcp, 0.0.0.0:15841->15841/tcp, 0.0.0.0:15844-15845->15844-15845/tcp, 0.0.0.0:15858-15859->15858-15859/tcp, 0.0.0.0:15861->15861/tcp, 0.0.0.0:15864->15864/tcp, 0.0.0.0:2024->22/tcp, 0.0.0.0:1524->1522/tcp uc-zgv20190204000
#5.2.查看所有容器,包括没有运行的
[root@hs-10-20-18-175 docker_fc]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c0ebd191999f 192.168.44.132/o4uft/pf1.0v201801.01.000_20200515fb:o4uft "dumb-init bash" 11 years ago Exited (137) 11 years ago pf1.0v201801.01.000_20200515fb
fa6b43edfb6b 192.168.44.132/uc20/uc-zgv20190204000:uc20 "bash" 11 years ago Up 11 years 0.0.0.0:1521->1521/tcp, 0.0.0.0:5123->5123/tcp, 0.0.0.0:5127->5127/tcp, 0.0.0.0:5224->5224/tcp, 0.0.0.0:9003->9003/tcp, 0.0.0.0:9009->9009/tcp, 0.0.0.0:9898->9898/tcp, 0.0.0.0:15827->15827/tcp, 0.0.0.0:15841->15841/tcp, 0.0.0.0:15844-15845->15844-15845/tcp, 0.0.0.0:15858-15859->15858-15859/tcp, 0.0.0.0:15861->15861/tcp, 0.0.0.0:15864->15864/tcp, 0.0.0.0:2024->22/tcp, 0.0.0.0:1524->1522/tcp uc-zgv20190204000
cb822aa012a7 192.168.44.132/o4uft/pf1.0v201801.01.000_20191227fb:o4uft "dumb-init bash" 11 years ago Exited (137) 11 years ago pf1.0v201801.01.000_20191227fb
#5.3.查看运行中的容器（只显示容器id）
[root@hs-10-20-18-175 docker_fc]# docker ps -q
fa6b43edfb6b
#5.4.查看所有容器,包括没有运行的（只显示容器id）
[root@hs-10-20-18-175 docker_fc]# docker ps -aq
fa6b43edfb6b
cb822aa012a7
#6.1.停止容器运行
#查看运行中的容器id
[root@hs-10-20-18-175 docker_fc]# docker ps -q
fa6b43edfb6b
#使用容器id停止运行中的容器
[root@hs-10-20-18-175 docker_fc]# docker stop fa
fa
#6.2.启动容器
#查看所有容器id
[root@hs-10-20-18-175 docker_fc]# docker ps -aq
fa6b43edfb6b
cb822aa012a7
#使用容器id启动运行中的容器
[root@hs-10-20-18-175 docker_fc]# docker start fa
fa
##查看运行中的容器id
[root@hs-10-20-18-175 docker_fc]# docker ps -q
fa6b43edfb6b
#7.删除容器（删除容器前需要先停止容器）
#查看所有容器id
[root@hs-10-20-18-175 docker_fc]# docker ps -aq
fa6b43edfb6b
cb822aa012a7
#根据容器id删除容器
[root@hs-10-20-18-175 docker_fc]# docker rm fa
fa
[root@hs-10-20-18-175 docker_fc]# docker ps -aq
cb822aa012a7
#删除全部容器
[root@hs-10-20-18-175 docker_fc]# docker rm $(docker ps -qa)
#8.容器操作
#8.1.进入容器内部
[root@hs-10-20-18-175 docker_fc]# docker exec -it f74fe392e9132042a51fc4c51896e8051fc59a3585e2576580e147cb4ad11b54 /bin/bash
[root@f74fe392e913 /]# ls
bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var
#8.2.退出容器内部
[root@hs-10-20-18-175 docker_fc]# exit
#9.1.修改容器名称（可以用于一个镜像搭建两套容器）
[root@hs-10-20-18-175 docker_fc]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f74fe392e913 192.168.44.132/uc20/uc-zgv20190204000:uc20 "bash" 27 hours ago Exited (137) 6 minutes ago uc-zgv20190204000
b9eb76fdd09b 192.168.44.132/o4uft/of20170630c_20200312fb:o4uft "dumb-init bash" 3 weeks ago Exited (137) 11 years ago of20170630c_20200312fb
[root@hs-10-20-18-175 docker_fc]# docker rename uc-zgv20190204000 uc-zgv20190204000_old
[root@hs-10-20-18-175 docker_fc]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f74fe392e913 192.168.44.132/uc20/uc-zgv20190204000:uc20 "bash" 27 hours ago Exited (137) 6 minutes ago uc-zgv20190204000_old
b9eb76fdd09b 192.168.44.132/o4uft/of20170630c_20200312fb:o4uft "dumb-init bash" 3 weeks ago Exited (137) 11 years ago of20170630c_20200312fb
2.docker 制作自定义文件
#1.创建一个 Dockerfile 文件，并指定自定义镜像信息。
# Dockerfile 文件中常用的内容
from: 指定当前自定义镜像依赖的环境
copy: 将相对路径下的内容复制到自定义镜像中
workdir: 声明镜像的默认工作目录
cmd: 需要执行的命令（在workdir下执行，cmd可以写多个，只以最后一个为准）
# 举个栗子，自定义一个tomcat镜像，并且将ssm.war部署到tomcat中
from daocloud.io/library/tomcat:8.5.15-jre8
copy ssm.war /usr/local/tomcat/webapps
#2.将准备好的 Dockerfile 和相应的文件拖拽到 Linux 操作系统中，通过 Docker 的命令制作镜像
docker build -t 镜像名称:[tag] .
3. Docker-Compose
之前运行一个镜像，需要添加大量的参数。
可以通过 Docker-Compose 编写这些参数。
Docker-Compose 可以帮助我们批量地管理容器。
只需要一个 docker-compose.yml 文件去维护即可。
4.将容器制作成镜像
#格式：docker commit -m '镜像描述' -a '制作者' 容器名 镜像名
#1.查询当前镜像
[root@hs-10-20-18-175 docker_fc]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
7dcefc7a1c85 192.168.44.132/uc20/ucv20190207000:uc20 "bash" 6 minutes ago Up 6 minutes 0.0.0.0:1521->1521/tcp, 0.0.0.0:5123->5123/tcp, 0.0.0.0:5127->5127/tcp, 0.0.0.0:5224->5224/tcp, 0.0.0.0:9003->9003/tcp, 0.0.0.0:9009->9009/tcp, 0.0.0.0:9898->9898/tcp, 0.0.0.0:15827->15827/tcp, 0.0.0.0:15841->15841/tcp, 0.0.0.0:15844-15845->15844-15845/tcp, 0.0.0.0:15858-15859->15858-15859/tcp, 0.0.0.0:15861->15861/tcp, 0.0.0.0:15864->15864/tcp, 0.0.0.0:2024->22/tcp, 0.0.0.0:1524->1522/tcp ucv20190207000
[root@hs-10-20-18-175 docker_fc]#
#格式：docker commit -m '镜像描述' -a '制作者' 容器名 镜像名
#2.将容器制作成镜像
[root@hs-10-20-18-175 docker_fc]# docker commit -m 'ucv20190207000_fc' -a 'fc' ucv20190207000 ucv20190207000_fc:uc20
sha256:69872616774af10ef582bc1b3241d499ef21df0422094fb490fcd319de703c34
#查看一下当前的镜像（新制作的镜像为ucv20190207000_fc）
[root@hs-10-20-18-175 docker_fc]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ucv20190207000_fc latest 69872616774a 49 seconds ago 23.72 GB
192.168.44.132/uc20/uc-zgv20190204000 uc20 5eba8fd7d56f 8 months ago 20.89 GB
192.168.44.132/uc20/ucv20190207000 uc20 da5f5aed9eee 10 months ago 17.72 GB
192.168.44.132/uc20/ucv20200103000_20201130auto uc20 93ef245f40fd 4 years ago 26.12 GB
#3.修改镜像名
[root@hs-10-20-18-175 docker_fc]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ucv20210100000-fc uc20 2f04a95bd278 22 hours ago 38.13 GB
[root@hs-10-20-18-175 docker_fc]# docker tag 2f04a95bd278 ucv20210100000-fc-1:uc201
[root@hs-10-20-18-175 docker_fc]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ucv20210100000-fc-1 uc201 2f04a95bd278 22 hours ago 38.13 GB
#4.将制作好的镜像打包成 tar 包
[root@hs-10-20-18-175 docker_fc]# docker save -o ucv20190207000_fc.tar ucv20190207000_fc
[root@hs-10-20-18-175 docker_fc]# ls
dockerCreate_0.sh dockerCreate.sh dockerPullImage.sh dockerStartOracle.sh env.db ucv20190207000_fc.tar
#5.从 tar 包中加载镜像
#查看当前镜像
[root@hs-10-20-18-175 docker_fc]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ucv20200100000-fc-bak uc20 f5bf1b4b0551 18 hours ago 30.71 GB
192.168.44.132/uc20/uc-zgv20190204000 uc20 5eba8fd7d56f 8 months ago 20.89 GB
192.168.44.132/uc20/ucv20190207000 uc20 da5f5aed9eee 10 months ago 17.72 GB
192.168.44.132/uc20/ucv20200103000_20201130auto uc20 93ef245f40fd 4 years ago 26.12 GB
[root@hs-10-20-18-175 docker_fc]# ls
dockerCreate_0.sh dockerCreate_fc.sh dockerCreate.sh dockerPullImage.sh dockerStartOracle.sh ucv20200100000-fc.tar ucv20210100000-fc.tar
#加载镜像
[root@hs-10-20-18-175 docker_fc]# docker load < ucv20200100000-fc.tar
Loaded image: ucv20200100000-fc:uc20
#查看镜像
[root@hs-10-20-18-175 docker_fc]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ucv20200100000-fc-bak uc20 f5bf1b4b0551 18 hours ago 30.71 GB
ucv20200100000-fc uc20 f5bf1b4b0551 18 hours ago 30.71 GB
192.168.44.132/uc20/uc-zgv20190204000 uc20 5eba8fd7d56f 8 months ago 20.89 GB
192.168.44.132/uc20/ucv20190207000 uc20 da5f5aed9eee 10 months ago 17.72 GB
192.168.44.132/uc20/ucv20200103000_20201130auto uc20 93ef245f40fd 4 years ago 26.12 GB
参考资料：https://www.cnblogs.com/pjcd-32718195/p/11762079.html