来自的视频地址：https://www.imooc.com/video/15646
| 命令 | 用途 |
| docker pull | 获取image |
| docker build | 创建image |
| docker images | 列出image |
| docker run | 运行container |
| docker ps | 列出container |
| docker rm | 删除container |
| docker rmi | 删除image |
| docker cp | 在host和container之间拷贝文件 |
| docker commit | 保存改动为新的image |
[root@localhost ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE friendlyhello latest 9267bd4853d6 3 months ago 148MB w11930879/get-started part2 9267bd4853d6 3 months ago 148MB python 2.7-slim f462855313cd 3 months ago 137MB hello-world latest fce289e99eb9 11 months ago 1.84kB twang2218/gitlab-ce-zh 11.1 a570ada5159a 16 months ago 1.61GB [root@localhost ~]# [root@localhost ~]# docker run -p 8080:80 -d nginx Unable to find image 'nginx:latest' locally latest: Pulling from library/nginx 000eee12ec04: Pull complete eb22865337de: Pull complete bee5d581ef8b: Pull complete Digest: sha256:50cf965a6e08ec5784009d0fccb380fc479826b6e0e65684d9879170a9df8566 Status: Downloaded newer image for nginx:latest 20621967cd8fee29c13aca24afc7ad03988bb888e69043341e14bcb03bf88c8e [root@localhost ~]# echo $? 0 [root@localhost ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE nginx latest 231d40e811cd 4 weeks ago 126MB friendlyhello latest 9267bd4853d6 3 months ago 148MB w11930879/get-started part2 9267bd4853d6 3 months ago 148MB python 2.7-slim f462855313cd 3 months ago 137MB hello-world latest fce289e99eb9 11 months ago 1.84kB twang2218/gitlab-ce-zh 11.1 a570ada5159a 16 months ago 1.61GB [root@localhost ~]# cd /Dockerfile/ [root@localhost Dockerfile]# ls app.py Dockerfile git.nowtest.top.crt git.nowtest.top.key VirtualBox-6.0-6.0.14_133895_el7-1.x86_64.rpm docker-compose.yml docker-machine git.nowtest.top.csr requirements.txt [root@localhost Dockerfile]# mkdir nginx [root@localhost Dockerfile]# cd nginx/ [root@localhost nginx]# ls [root@localhost nginx]# echo "你好，世界" > index.html [root@localhost nginx]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 20621967cd8f nginx "nginx -g 'daemon of…" 7 minutes ago Up 7 minutes 0.0.0.0:8080->80/tcp competent_khayyam [root@localhost nginx]# [root@localhost nginx]# cat index.html 你好，世界 [root@localhost nginx]# docker cp index.html 20621967cd8f://usr/share/nginx/html [root@localhost nginx]# [root@localhost nginx]# #上面的配置复制过去，是临时的，如果关掉进程，会丢失index.html,恢复初始配置 [root@localhost nginx]# docker commit -m 'fun' 20621967cd8f nginx-fun sha256:6b3b08a104c9d7df55203fc92b6e3af55bb6091238a3aa1f7ae01d4dd8b43879 [root@localhost nginx]# [root@localhost nginx]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 20621967cd8f nginx "nginx -g 'daemon of…" 19 minutes ago Up 19 minutes 0.0.0.0:8080->80/tcp competent_khayyam [root@localhost nginx]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE nginx-fun latest 6b3b08a104c9 21 seconds ago 126MB nginx latest 231d40e811cd 4 weeks ago 126MB friendlyhello latest 9267bd4853d6 3 months ago 148MB w11930879/get-started part2 9267bd4853d6 3 months ago 148MB python 2.7-slim f462855313cd 3 months ago 137MB hello-world latest fce289e99eb9 11 months ago 1.84kB twang2218/gitlab-ce-zh 11.1 a570ada5159a 16 months ago 1.61GB [root@localhost nginx]# [root@localhost nginx]# docker stop 20621967cd8f 20621967cd8f [root@localhost nginx]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES [root@localhost nginx]# docker run -p 8080:80 -d nginx-fun 62b70c5f20083882bfef86a33a158ed5ff7c4523bd70ad6aa7fad5a52cbf4b72 [root@localhost nginx]# [root@localhost nginx]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 62b70c5f2008 nginx-fun "nginx -g 'daemon of…" 5 seconds ago Up 4 seconds 0.0.0.0:8080->80/tcp friendly_kirch [root@localhost nginx]# [root@localhost nginx]# [root@localhost nginx]# #删除镜像 [root@localhost nginx]# [root@localhost nginx]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE nginx-fun latest 6b3b08a104c9 6 minutes ago 126MB nginx latest 231d40e811cd 4 weeks ago 126MB friendlyhello latest 9267bd4853d6 3 months ago 148MB w11930879/get-started part2 9267bd4853d6 3 months ago 148MB python 2.7-slim f462855313cd 3 months ago 137MB hello-world latest fce289e99eb9 11 months ago 1.84kB twang2218/gitlab-ce-zh 11.1 a570ada5159a 16 months ago 1.61GB [root@localhost nginx]# docker rmi 231d40e811cd Error response from daemon: conflict: unable to delete 231d40e811cd (cannot be forced) - image has dependent child images [root@localhost nginx]# [root@localhost nginx]# [root@localhost nginx]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE nginx-fun latest 6b3b08a104c9 7 minutes ago 126MB nginx latest 231d40e811cd 4 weeks ago 126MB friendlyhello latest 9267bd4853d6 3 months ago 148MB w11930879/get-started part2 9267bd4853d6 3 months ago 148MB python 2.7-slim f462855313cd 3 months ago 137MB hello-world latest fce289e99eb9 11 months ago 1.84kB twang2218/gitlab-ce-zh 11.1 a570ada5159a 16 months ago 1.61GB [root@localhost nginx]# docker rmi 231d40e811cd Error response from daemon: conflict: unable to delete 231d40e811cd (cannot be forced) - image has dependent child images [root@localhost nginx]# [root@localhost nginx]# #删除docker images 中的镜像是用rmi ，上面报错是因为，nginx作为了nginx-fun的母镜像，无法强制删除 [root@localhost nginx]# [root@localhost nginx]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 62b70c5f2008 nginx-fun "nginx -g 'daemon of…" 5 minutes ago Up 5 minutes 0.0.0.0:8080->80/tcp friendly_kirch [root@localhost nginx]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 62b70c5f2008 nginx-fun "nginx -g 'daemon of…" 5 minutes ago Up 5 minutes 0.0.0.0:8080->80/tcp friendly_kirch 20621967cd8f nginx "nginx -g 'daemon of…" 30 minutes ago Exited (0) 6 minutes ago competent_khayyam 68e6c7ec711f twang2218/gitlab-ce-zh:11.1 "/assets/wrapper" 2 weeks ago Exited (255) 34 minutes ago 0.0.0.0:2222->22/tcp, 0.0.0.0:8888->80/tcp, 0.0.0.0:8443->443/tcp gitlab 444b7439c994 hello-world "/hello" 2 weeks ago Exited (0) 2 weeks ago eager_lovelace 452c639ba611 w11930879/get-started:part2 "python app.py" 3 weeks ago Exited (0) 3 weeks ago nifty_mclean c957edbc46ee friendlyhello "python app.py" 3 weeks ago Exited (137) 3 weeks ago heuristic_clarke 3221ff467c40 friendlyhello "python app.py" 3 weeks ago Exited (0) 3 weeks ago infallible_sammet 463f34e5f68d hello-world "/hello" 3 weeks ago Exited (0) 3 weeks ago gifted_feynman 035e7dcfa0e8 a405b9a10b98 "/bin/sh -c 'pip ins…" 3 months ago Exited (2) 3 months ago practical_pare e7b585f4a4d6 hello-world "/hello" 3 months ago Exited (0) 3 months ago busy_mirzakhani d325ab909064 hello-world "/hello" 3 months ago Exited (0) 3 months ago pensive_chatelet [root@localhost nginx]# [root@localhost nginx]# docker rm 20621967cd8f d325ab909064 e7b585f4a4d6 20621967cd8f d325ab909064 e7b585f4a4d6 [root@localhost nginx]# [root@localhost nginx]# [root@localhost nginx]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 62b70c5f2008 nginx-fun "nginx -g 'daemon of…" 7 minutes ago Up 7 minutes 0.0.0.0:8080->80/tcp friendly_kirch 68e6c7ec711f twang2218/gitlab-ce-zh:11.1 "/assets/wrapper" 2 weeks ago Exited (255) 35 minutes ago 0.0.0.0:2222->22/tcp, 0.0.0.0:8888->80/tcp, 0.0.0.0:8443->443/tcp gitlab 444b7439c994 hello-world "/hello" 2 weeks ago Exited (0) 2 weeks ago eager_lovelace 452c639ba611 w11930879/get-started:part2 "python app.py" 3 weeks ago Exited (0) 3 weeks ago nifty_mclean c957edbc46ee friendlyhello "python app.py" 3 weeks ago Exited (137) 3 weeks ago heuristic_clarke 3221ff467c40 friendlyhello "python app.py" 3 weeks ago Exited (0) 3 weeks ago infallible_sammet 463f34e5f68d hello-world "/hello" 3 weeks ago Exited (0) 3 weeks ago gifted_feynman 035e7dcfa0e8 a405b9a10b98 "/bin/sh -c 'pip ins…" 3 months ago Exited (2) 3 months ago practical_pare
删除镜像报错
使用IMAGE ID删除镜像报错Error response from daemon: conflict: unable to delete d0957ffdf8a2 (must be forced) - image is referenced in multiple repositories是因为有多个镜像的IMAGE ID是相同的，可以使用REPOSITORY+TAG的方式去删除；如下： [root@localhost php-nginx-compose]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE nginx_ghost_mysql_ghost-app latest 0dead1e98a63 3 weeks ago 403MB ghost latest a3fced6c343c 4 weeks ago 403MB w11930879/get-started part2 9267bd4853d6 3 months ago 148MB friendlyhello latest 9267bd4853d6 3 months ago 148MB python 2.7-slim f462855313cd 4 months ago 137MB --这里我centos:6和centos:centos6的IMAGE ID是相同的，删除就会报错。
解决办法可以用REPOSITORY+TAG的方式删除
[root@localhost php-nginx-compose]# docker rmi w11930879/get-started:part2 Untagged: w11930879/get-started:part2 Untagged: w11930879/get-started@sha256:6c231674410c369793bb65663b5057016566b6f724f656caabe6fbedbd233a10
再次查看验证是成功的
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