docker没有提供查询某个软件可使用的版本号的命令；
docker没有提供查询某个软件版本号有哪些软件；

但是可以通过自定shell脚本满足上述2个需求。

创建docker-tags命令

新建/usr/local/bin/docker-tags文件，复制以下脚本，配置可执行权限：sudo chmode +x dockr-tags。

  1. #!/bin/bash
  3. API="https://registry.hub.docker.com/v1/repositories"
  4. DEFAULT_NAME="nginx"
  5. DEFAULT_TIMEOUT=3
  7. function Usage(){
  8. cat << HELP
  10. Usage: docker-tags NAME[:TAG]
  12. docker-tags list all tags for docker image on a remote registry.
  14. Example:
  15.     docker-tags (default nginx)
  16.     docker-tags nginx
  17.     docker-tags nginx:1.15.8
  18.     docker search nginx | docker-tags
  19.     docker search nginx | docker-tags :1.15.8
  20.     echo nginx | docker-tags
  21.     echo nginx | docker-tags :1.15.8
  22. HELP
  23. }
  25. ARG=$1
  26. if [[ "$ARG" =~ "-h" ]];then
  27.     Usage
  28.     exit 0
  29. fi
  31. function ParseJson(){
  32.     tr -d '[\[\]" ]' | tr '}' '\n' | awk -F: -v image=$1 '{if(NR!=NF && $3 != ""){printf("%s:%s\n",image,$3)}}'
  33. }
  35. function GetTags(){
  36.     image=$1
  37.     tag=$2
  38.     ret=`curl -s ${API}/${image}/tags`
  39.     tag_list=`echo $ret | ParseJson ${image}`
  40.     if [ -z "$tag" ];then
  41.         echo -e "$tag_list"
  42.     else
  43.         echo -e "$tag_list" | grep -w "$tag"
  44.     fi
  45. }
  47. if [ -z $ARG ] || [[ ${ARG:0:1} == ":" ]];then
  48.     if [ -x /usr/bin/timeout ];then
  49.         images=`timeout $DEFAULT_TIMEOUT` awk '{print $1}' | grep -v "NAME" || echo $DEFAULT_NAME
  50.     else
  51.         images=`awk '{print $1}' | grep -v "NAME"`
  52.     fi
  53. else
  54.     images=`echo $ARG | awk -F: '{print $1}'`
  55. fi
  56. tag=`echo $ARG | awk -F: '{print $2}'`
  58. for i in ${images}
  59. do
  60.     tags=`GetTags $i $tag`
  61.     count=`echo $tags | wc -w`
  62.     if [[ $count -gt 0 ]];then
  63.         echo -e "IMAGE [$i:$tag]:"
  64.         echo -e "$tags"
  65.         echo
  66.     fi
  67. done

使用示例

  1. $ docker-tags -help                                                                             [0]
  3. Usage: docker-tags NAME[:TAG]
  5. docker-tags list all tags for docker image on a remote registry.
  7. Example:
  8.     docker-tags (default nginx)
  9.     docker-tags nginx
  10.     docker-tags nginx:1.15.8
  11.     docker search nginx | docker-tags
  12.     docker search nginx | docker-tags :1.15.8
  13.     echo nginx | docker-tags
  14.     echo nginx | docker-tags :1.15.8

简易版

  1. #!/bin/sh
  3. repo_url=https://registry.hub.docker.com/v1/repositories
  4. image_name=$1
  6. curl -s ${repo_url}/${image_name}/tags | json_reformat | grep name | awk '{print $2}' | sed -e 's/"//g'

执行示例

  1. $ ./list_img_tags.sh tensorflow/tensorflow
  2. latest
  3. 0.10.0
  4. 0.10.0-devel
  5. 0.10.0-devel-gpu
  6. 0.10.0-gpu
  7. 0.10.0rc0
  8. 0.10.0rc0-devel
  9. 0.10.0rc0-devel-gpu
  10. 0.10.0rc0-gpu
  11. 0.11.0
  12. ...