在nginx容器內編輯配置文件：將宿主的vi所在的目錄掛載爲容器的/bin
docker run -it -v /usr/bin:/bin nginx /bin/sh #vi /etc/nginx/nginx.conf
【問題】
nginx容器：
將卷/conf/nginx掛載爲/etc/nginx/conf.d後，nginx無法啓動
將卷/www掛載爲/www後，網頁無法訪問，報403
【解決辦法】
獲取dockerroot用戶id，此處爲996
[root@localhost ~]# cat /etc/passwd | grep docker dockerroot:x:996:993:Docker User:/var/lib/docker:/sbin/nologin
將/www /conf/nginx目錄所有者改爲dockerroot用戶id，問題即可解決。
[root@localhost ~]# chown -R 996 /www /conf/nginx
批量刪除容器：
docker rm $(docker ps -a -q)
[root@localhost ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 8e4ca9b36187 learn/ping "ping www.baidu.com" 23 hours ago Exited (0) 23 hours ago adoring_leavitt aaf15374785c learn/tutorial "apt-get install -y p" 24 hours ago Exited (0) 24 hours ago high_perlman 3cae0f4e0f90 learn/tutorial "echo 'hello world'" 24 hours ago Exited (0) 24 hours ago determined_mcnulty f0a26e9ce9a8 nginx:1.9 "nginx -g 'daemon off" 38 hours ago Exited (0) 8 hours ago high_hodgkin a892ef304b92 nginx:1.9 "nginx -g 'daemon off" 38 hours ago Created pedantic_northcutt [root@localhost ~]# docker rm $(docker ps -a -q) 8e4ca9b36187 aaf15374785c 3cae0f4e0f90 f0a26e9ce9a8 a892ef304b92 [root@localhost ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
end.