在使用Docker時我想pull遠端倉庫的CentOS 6的鏡像，我是這樣操作的

docker search centos
回傳的結果：

NAME                                   DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED 
centos                                 The official build of CentOS.                   3160      [OK]                 
jdeathe/centos-ssh                     CentOS-6 6.8 x86_64 / CentOS-7 7.3.1611 x8...   61                   [OK]      
nimmis/java-centos                     This is docker images of CentOS 7 with dif...   23                   [OK]      
consol/centos-xfce-vnc                 Centos container with "headless" VNC sessi...   22                   [OK]      
gluster/gluster-centos                 Official GlusterFS Image [ CentOS-7 +  Glu...   18                   [OK]      
million12/centos-supervisor            Base CentOS-7 with supervisord launcher, h...   13                   [OK]      
torusware/speedus-centos               Always updated official CentOS docker imag...   8                    [OK]      
egyptianbman/docker-centos-nginx-php   A simple and highly configurable docker co...   6                    [OK]      
nathonfowlie/centos-jre                Latest CentOS image with the JRE pre-insta...   5                    [OK]      
centos/mariadb55-centos7                                                               4                    [OK]      
consol/sakuli-centos-xfce              Sakuli JavaScript based end-2-end testing ...   3                    [OK]      
harisekhon/centos-java                 Java on CentOS (OpenJDK, tags jre/jdk7-8)       2                    [OK]      
harisekhon/centos-scala                Scala + CentOS (OpenJDK tags 2.10-jre7 - 2...   2                    [OK]      
centos/redis                           Redis built for CentOS                          2                    [OK]      
blacklabelops/centos                   CentOS Base Image! Built and Updates Daily!     1                    [OK]      
darksheer/centos                       Base Centos Image -- Updated hourly             1                    [OK]      
freenas/centos                         Simple CentOS Linux interactive container       1                    [OK]      
timhughes/centos                       Centos with systemd installed and running       1                    [OK]      
smartentry/centos                      centos with smartentry                          0                    [OK]      
januswel/centos                        yum update-ed CentOS image                      0                    [OK]      
termbox/centos                         CentOS                                          0                    [OK]      
otagoweb/centos                        Apache (with PHP7), built on CentOS 7           0                    [OK]      
repositoryjp/centos                    Docker Image for CentOS.                        0                    [OK]      
vcatechnology/centos                   A CentOS Image which is updated daily           0                    [OK]      
labengine/centos                       Centos image base                               0                    [OK]      

docker pull centos

然後下載下來的時最新的CentOS鏡像，為版本7，我想下載版本為6的CentOS鏡像，我在search的時候如何查看到tag，就以這裡為例，我想下載官方的CentOS6的鏡像，我想官方應該有提供CentOS6的鏡像，我不知道怎麼查看

提示：

{ dir }  » docker search --help

Usage:  docker search [OPTIONS] TERM

Search the Docker Hub for images

Options:
  -f, --filter filter   Filter output based on conditions provided
      --help            Print usage
      --limit int       Max number of search results (default 25)
      --no-trunc        Don't truncate output

查看了docker search的選項，沒有發現與tag相關的

這種問題大家是怎麼解決的?