command: docker system prune
short: Remove unused data
long: |-
  Remove all unused containers, networks, images (both dangling and unreferenced),
  and optionally, volumes.
usage: docker system prune [OPTIONS]
pname: docker system
plink: docker_system.yaml
options:
- option: all
  shorthand: a
  value_type: bool
  default_value: "false"
  description: Remove all unused images not just dangling ones
  deprecated: false
  experimental: false
  experimentalcli: false
  kubernetes: false
  swarm: false
- option: filter
  value_type: filter
  description: Provide filter values (e.g. 'label=<key>=<value>')
  deprecated: false
  min_api_version: "1.28"
  experimental: false
  experimentalcli: false
  kubernetes: false
  swarm: false
- option: force
  shorthand: f
  value_type: bool
  default_value: "false"
  description: Do not prompt for confirmation
  deprecated: false
  experimental: false
  experimentalcli: false
  kubernetes: false
  swarm: false
- option: volumes
  value_type: bool
  default_value: "false"
  description: Prune volumes
  deprecated: false
  experimental: false
  experimentalcli: false
  kubernetes: false
  swarm: false
examples: |-
  ```bash
  $ docker system prune

  WARNING! This will remove:
          - all stopped containers
          - all networks not used by at least one container
          - all dangling images
          - all build cache
  Are you sure you want to continue? [y/N] y

  Deleted Containers:
  f44f9b81948b3919590d5f79a680d8378f1139b41952e219830a33027c80c867
  792776e68ac9d75bce4092bc1b5cc17b779bc926ab04f4185aec9bf1c0d4641f

  Deleted Networks:
  network1
  network2

  Deleted Images:
  untagged: hello-world@sha256:f3b3b28a45160805bb16542c9531888519430e9e6d6ffc09d72261b0d26ff74f
  deleted: sha256:1815c82652c03bfd8644afda26fb184f2ed891d921b20a0703b46768f9755c57
  deleted: sha256:45761469c965421a92a69cc50e92c01e0cfa94fe026cdd1233445ea00e96289a

  Total reclaimed space: 1.84kB
  ```

  By default, volumes are not removed to prevent important data from being
  deleted if there is currently no container using the volume. Use the `--volumes`
  flag when running the command to prune volumes as well:

  ```bash
  $ docker system prune -a --volumes

  WARNING! This will remove:
          - all stopped containers
          - all networks not used by at least one container
          - all volumes not used by at least one container
          - all images without at least one container associated to them
          - all build cache
  Are you sure you want to continue? [y/N] y

  Deleted Containers:
  0998aa37185a1a7036b0e12cf1ac1b6442dcfa30a5c9650a42ed5010046f195b
  73958bfb884fa81fa4cc6baf61055667e940ea2357b4036acbbe25a60f442a4d

  Deleted Networks:
  my-network-a
  my-network-b

  Deleted Volumes:
  named-vol

  Deleted Images:
  untagged: my-curl:latest
  deleted: sha256:7d88582121f2a29031d92017754d62a0d1a215c97e8f0106c586546e7404447d
  deleted: sha256:dd14a93d83593d4024152f85d7c63f76aaa4e73e228377ba1d130ef5149f4d8b
  untagged: alpine:3.3
  deleted: 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
  ```

  > **Note**
  >
  > The `--volumes` option was added in Docker 17.06.1. Older versions of Docker
  > prune volumes by default, along with other Docker objects. On older versions,
  > run `docker container prune`, `docker network prune`, and `docker image prune`
  > separately to remove unused containers, networks, and images, without removing
  > volumes.


  ### Filtering

  The filtering flag (`--filter`) format is of "key=value". If there is more
  than one filter, then pass multiple flags (e.g., `--filter "foo=bar" --filter "bif=baz"`)

  The currently supported filters are:

  * until (`<timestamp>`) - only remove containers, images, and networks created before given timestamp
  * 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.

  The `until` filter can be Unix timestamps, date formatted
  timestamps, or Go duration strings (e.g. `10m`, `1h30m`) computed
  relative to the daemon machine’s time. Supported formats for date
  formatted time stamps include RFC3339Nano, RFC3339, `2006-01-02T15:04:05`,
  `2006-01-02T15:04:05.999999999`, `2006-01-02Z07:00`, and `2006-01-02`. The local
  timezone on the daemon will be used if you do not provide either a `Z` or a
  `+-00:00` timezone offset at the end of the timestamp.  When providing Unix
  timestamps enter seconds[.nanoseconds], where seconds is the number of seconds
  that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap
  seconds (aka Unix epoch or Unix time), and the optional .nanoseconds field is a
  fraction of a second no more than nine digits long.

  The `label` filter accepts two formats. One is the `label=...` (`label=<key>` or `label=<key>=<value>`),
  which removes containers, images, networks, and volumes with the specified labels. The other
  format is the `label!=...` (`label!=<key>` or `label!=<key>=<value>`), which removes
  containers, images, networks, and volumes without the specified labels.
deprecated: false
min_api_version: "1.25"
experimental: false
experimentalcli: false
kubernetes: false
swarm: false

