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描述
删除未使用的数据
使用
docker system prune [OPTIONS]
备选方案
名字，简写 | 默认 | 描述 |
|---|---|---|
--all, -a | 假 | 删除所有未使用的图像，而不仅仅是挂起的图像 |
--filter | 提供过滤器值（例如'label = ='） | |
--force, -f | 假 | 不要提示确认 |
--volumes | 假 | 修剪卷 |
父命令
命令 | 描述 |
|---|---|
docker system | 管理Docker |
相关命令
命令 | 描述 |
|---|---|
docker system df | 显示docker磁盘使用情况 |
docker system events | 从服务器获取实时事件 |
docker system info | 显示系统范围的信息 |
docker system prune | 删除未使用的数据 |
扩展描述
删除所有未使用的容器、卷、网络和图像（---同时挂起和未引用的）。
实例
$ docker system prune -a WARNING! This will remove:- all stopped containers- all volumes not used by at least one container- all networks not used by at least one container- all images without at least one container associated to them Are you sure you want to continue? [y/N] y Deleted Containers:0998aa37185a1a7036b0e12cf1ac1b6442dcfa30a5c9650a42ed5010046f195b 73958bfb884fa81fa4cc6baf61055667e940ea2357b4036acbbe25a60f442a4d Deleted Volumes:named-vol Deleted Images:untagged: my-curl:latest deleted: sha256:7d88582121f2a29031d92017754d62a0d1a215c97e8f0106c586546e7404447d deleted: sha256:dd14a93d83593d4024152f85d7c63f76aaa4e73e228377ba1d130ef5149f4d8b untagged: alpine:3.3deleted: sha256:695f3d04125db3266d4ab7bbb3c6b23aa4293923e762aa2562c54f49a28f009f untagged: alpine:latest deleted: sha256:ee4603260daafe1a8c2f3b78fd760922918ab2441cbb2853ed5c439e59c52f96 deleted: sha256:9007f5987db353ec398a223bc5a135c5a9601798ba20a1abba537ea2f8ac765f deleted: sha256:71fa90c8f04769c9721459d5aa0936db640b92c8c91c9b589b54abd412d120ab deleted: sha256:bb1c3357b3c30ece26e6604aea7d2ec0ace4166ff34c3616701279c22444c0f3 untagged: my-jq:latest deleted: sha256:6e66d724542af9bc4c4abf4a909791d7260b6d0110d8e220708b09e4ee1322e1 deleted: sha256:07b3fa89d4b17009eb3988dfc592c7d30ab3ba52d2007832dffcf6d40e3eda7f deleted: sha256:3a88a5c81eb5c283e72db2dbc6d65cbfd8e80b6c89bb6e714cfaaa0eed99c548 Total reclaimed space: 13.5 MB
过滤
过滤标志(-f or --filter) 格式为“key=value”。如果有多个筛选器，则传递多个标志 (例如 --filter "foo=bar" --filter "bif=baz")
目前支持的过滤器是：
until（
<timestamp>） - 仅删除在给定时间戳之前创建的容器，图像和网络
label (
label=<key>,label=<key>=<value>,label!=<key>，或label!=<key>=<value>)-仅删除带有%的容器、图像、网络和卷（以防万一label!=...使用）指定的标签。
该until过滤器可以是Unix的时间戳，日期格式的时间戳，或持续时间字符串（例如，去10m，1h30m）计算相对于守护机器的时间。支持的格式为日期格式时间戳包括RFC3339Nano，RFC3339， ，2006-01-02T15:04:05，2006-01-02T15:04:05.999999999，2006-01-02Z07:00和2006-01-02。如果您在时间戳结束时未提供时区偏移Z或+-00:00时区偏移，则将使用守护程序上的本地时区。在提供Unix时间戳时输入seconds.nanoseconds，其中seconds是自1970年1月1日（UTC/GMT午夜）以来经过的秒数，不包括闰秒（又名Unix纪元或Unix时间）以及可选的.nanoseconds字段是一秒不超过九位数的一小部分。
大label过滤器接受两种格式。一个是label=...（label=<key>或label=<key>=<value>），它使用指定的标签删除容器、图像、网络和卷。另一种格式是label!=...（label!=<key>或label!=<key>=<value>），它在没有指定标签的情况下删除容器、图像、网络和卷。