搜索Docker Hub中的镜像使用docker search命令：
➜ ~ docker search --help
Usage: docker search [OPTIONS] TERM
Search the Docker Hub for images
Options:
-f, --filter filter Filter output based on conditions provided
--format string Pretty-print search using a Go template
--limit int Max number of search results (default 25)
--no-trunc Don't truncate output
搜索包含关键字的镜像 Link to heading
➜ ~ docker search redis
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
redis Redis is an open source key-value store that… 8140 [OK]
bitnami/redis Bitnami Redis Docker Image 145 [OK]
sameersbn/redis 80 [OK]
...
--no-trunc显示完整的镜像描述：
➜ ~ docker search redis --no-trunc
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
redis Redis is an open source key-value store that functions as a data structure server. 8140 [OK]
bitnami/redis Bitnami Redis Docker Image 145 [OK]
sameersbn/redis 80 [OK]
过滤 Link to heading
-f或--filter可以用于过滤搜索结果，常用的过滤器有：
- stars=数字：镜像至少拥有的star数
- is-automated=true|false：镜像是否自动构建
- is-official=true|false：是否为官方镜像
➜ ~ docker search redis -f stars=100
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
redis Redis is an open source key-value store that… 8140 [OK]
bitnami/redis Bitnami Redis Docker Image 145 [OK]
➜ ~ docker search redis -f is-official=true
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
redis Redis is an open source key-value store that… 8140 [OK]
➜ ~ docker search redis -f is-automated=true
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
bitnami/redis Bitnami Redis Docker Image 145 [OK]
sameersbn/redis 80 [OK]
...