github.com/AliyunContainerService/cli@v0.0.0-20181009023821-814ced4b30d0/docs/reference/commandline/system_prune.md (about)

     1  ---
     2  title: "system prune"
     3  description: "Remove unused data"
     4  keywords: "system, prune, delete, remove"
     5  ---
     6  
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    15  
    16  # system prune
    17  
    18  ```markdown
    19  Usage:	docker system prune [OPTIONS]
    20  
    21  Remove unused data
    22  
    23  Options:
    24    -a, --all             Remove all unused images not just dangling ones
    25        --filter filter   Provide filter values (e.g. 'label=<key>=<value>')
    26    -f, --force           Do not prompt for confirmation
    27        --help            Print usage
    28        --volumes         Prune volumes
    29  ```
    30  
    31  ## Description
    32  
    33  Remove all unused containers, networks, images (both dangling and unreferenced),
    34  and optionally, volumes.
    35  
    36  ## Examples
    37  
    38  ```bash
    39  $ docker system prune
    40  
    41  WARNING! This will remove:
    42          - all stopped containers
    43          - all networks not used by at least one container
    44          - all dangling images
    45          - all build cache
    46  Are you sure you want to continue? [y/N] y
    47  
    48  Deleted Containers:
    49  f44f9b81948b3919590d5f79a680d8378f1139b41952e219830a33027c80c867
    50  792776e68ac9d75bce4092bc1b5cc17b779bc926ab04f4185aec9bf1c0d4641f
    51  
    52  Deleted Networks:
    53  network1
    54  network2
    55  
    56  Deleted Images:
    57  untagged: hello-world@sha256:f3b3b28a45160805bb16542c9531888519430e9e6d6ffc09d72261b0d26ff74f
    58  deleted: sha256:1815c82652c03bfd8644afda26fb184f2ed891d921b20a0703b46768f9755c57
    59  deleted: sha256:45761469c965421a92a69cc50e92c01e0cfa94fe026cdd1233445ea00e96289a
    60  
    61  Total reclaimed space: 1.84kB
    62  ```
    63  
    64  By default, volumes are not removed to prevent important data from being
    65  deleted if there is currently no container using the volume. Use the `--volumes`
    66  flag when running the command to prune volumes as well:
    67  
    68  ```bash
    69  $ docker system prune -a --volumes
    70  
    71  WARNING! This will remove:
    72          - all stopped containers
    73          - all networks not used by at least one container
    74          - all volumes not used by at least one container
    75          - all images without at least one container associated to them
    76          - all build cache
    77  Are you sure you want to continue? [y/N] y
    78  
    79  Deleted Containers:
    80  0998aa37185a1a7036b0e12cf1ac1b6442dcfa30a5c9650a42ed5010046f195b
    81  73958bfb884fa81fa4cc6baf61055667e940ea2357b4036acbbe25a60f442a4d
    82  
    83  Deleted Networks:
    84  my-network-a
    85  my-network-b
    86  
    87  Deleted Volumes:
    88  named-vol
    89  
    90  Deleted Images:
    91  untagged: my-curl:latest
    92  deleted: sha256:7d88582121f2a29031d92017754d62a0d1a215c97e8f0106c586546e7404447d
    93  deleted: sha256:dd14a93d83593d4024152f85d7c63f76aaa4e73e228377ba1d130ef5149f4d8b
    94  untagged: alpine:3.3
    95  deleted: sha256:695f3d04125db3266d4ab7bbb3c6b23aa4293923e762aa2562c54f49a28f009f
    96  untagged: alpine:latest
    97  deleted: sha256:ee4603260daafe1a8c2f3b78fd760922918ab2441cbb2853ed5c439e59c52f96
    98  deleted: sha256:9007f5987db353ec398a223bc5a135c5a9601798ba20a1abba537ea2f8ac765f
    99  deleted: sha256:71fa90c8f04769c9721459d5aa0936db640b92c8c91c9b589b54abd412d120ab
   100  deleted: sha256:bb1c3357b3c30ece26e6604aea7d2ec0ace4166ff34c3616701279c22444c0f3
   101  untagged: my-jq:latest
   102  deleted: sha256:6e66d724542af9bc4c4abf4a909791d7260b6d0110d8e220708b09e4ee1322e1
   103  deleted: sha256:07b3fa89d4b17009eb3988dfc592c7d30ab3ba52d2007832dffcf6d40e3eda7f
   104  deleted: sha256:3a88a5c81eb5c283e72db2dbc6d65cbfd8e80b6c89bb6e714cfaaa0eed99c548
   105  
   106  Total reclaimed space: 13.5 MB
   107  ```
   108  
   109  > **Note**: The `--volumes` option was added in Docker 17.06.1. Older versions
   110  > of Docker prune volumes by default, along with other Docker objects. On older
   111  > versions, run `docker container prune`, `docker network prune`, and
   112  > `docker image prune` separately to remove unused containers, networks, and
   113  > images, without removing volumes.
   114  
   115  
   116  ### Filtering
   117  
   118  The filtering flag (`--filter`) format is of "key=value". If there is more
   119  than one filter, then pass multiple flags (e.g., `--filter "foo=bar" --filter "bif=baz"`)
   120  
   121  The currently supported filters are:
   122  
   123  * until (`<timestamp>`) - only remove containers, images, and networks created before given timestamp
   124  * label (`label=<key>`, `label=<key>=<value>`, `label!=<key>`, or `label!=<key>=<value>`) - only remove containers, images, networks, and volumes with (or without, in case `label!=...` is used) the specified labels.
   125  
   126  The `until` filter can be Unix timestamps, date formatted
   127  timestamps, or Go duration strings (e.g. `10m`, `1h30m`) computed
   128  relative to the daemon machine’s time. Supported formats for date
   129  formatted time stamps include RFC3339Nano, RFC3339, `2006-01-02T15:04:05`,
   130  `2006-01-02T15:04:05.999999999`, `2006-01-02Z07:00`, and `2006-01-02`. The local
   131  timezone on the daemon will be used if you do not provide either a `Z` or a
   132  `+-00:00` timezone offset at the end of the timestamp.  When providing Unix
   133  timestamps enter seconds[.nanoseconds], where seconds is the number of seconds
   134  that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap
   135  seconds (aka Unix epoch or Unix time), and the optional .nanoseconds field is a
   136  fraction of a second no more than nine digits long.
   137  
   138  The `label` filter accepts two formats. One is the `label=...` (`label=<key>` or `label=<key>=<value>`),
   139  which removes containers, images, networks, and volumes with the specified labels. The other
   140  format is the `label!=...` (`label!=<key>` or `label!=<key>=<value>`), which removes
   141  containers, images, networks, and volumes without the specified labels.
   142  
   143  ## Related commands
   144  
   145  * [volume create](volume_create.md)
   146  * [volume ls](volume_ls.md)
   147  * [volume inspect](volume_inspect.md)
   148  * [volume rm](volume_rm.md)
   149  * [volume prune](volume_prune.md)
   150  * [Understand Data Volumes](https://docs.docker.com/engine/tutorials/dockervolumes/)
   151  * [system df](system_df.md)
   152  * [container prune](container_prune.md)
   153  * [image prune](image_prune.md)
   154  * [network prune](network_prune.md)
   155  * [system prune](system_prune.md)