NAME

       docker-system-info - Display system-wide information

SYNOPSIS

       docker system info [OPTIONS]

DESCRIPTION

       This   command  displays  system  wide  information  regarding  the  Docker  installation.
       Information displayed includes the kernel version, number of containers and  images.   The
       number  of  images  shown  is  the  number  of  unique images. The same image tagged under
       different names is counted only once.

       If a format is specified, the given template will  be  executed  instead  of  the  default
       format. Go's text/template package describes all the details of the format.

       Depending  on the storage driver in use, additional information can be shown, such as pool
       name, data file, metadata file, data space used, total data space,  metadata  space  used,
       and total metadata space.

       The  data file is where the images are stored and the metadata file is where the meta data
       regarding those images are stored. When run for the first time Docker allocates a  certain
       amount  of  data  space  and  meta data space from the space available on the volume where
       /var/lib/docker is mounted.

EXAMPLES

Display Docker system information

       Here is a sample output for a daemon running on Ubuntu, using the overlay2 storage driver:

              $ docker -D info
              Client:
               Debug Mode: true

              Server:
               Containers: 14
                Running: 3
                Paused: 1
                Stopped: 10
               Images: 52
               Server Version: 1.13.0
               Storage Driver: overlay2
                Backing Filesystem: extfs
                Supports d_type: true
                Native Overlay Diff: false
               Logging Driver: json-file
               Cgroup Driver: cgroupfs
               Plugins:
                Volume: local
                Network: bridge host macvlan null overlay
               Swarm: active
                NodeID: rdjq45w1op418waxlairloqbm
                Is Manager: true
                ClusterID: te8kdyw33n36fqiz74bfjeixd
                Managers: 1
                Nodes: 2
                Orchestration:
                 Task History Retention Limit: 5
                Raft:
                 Snapshot Interval: 10000
                 Number of Old Snapshots to Retain: 0
                 Heartbeat Tick: 1
                 Election Tick: 3
                Dispatcher:
                 Heartbeat Period: 5 seconds
                CA Configuration:
                 Expiry Duration: 3 months
                Node Address: 172.16.66.128 172.16.66.129
                Manager Addresses:
                 172.16.66.128:2477
               Runtimes: runc
               Default Runtime: runc
               Init Binary: docker-init
               containerd version: 8517738ba4b82aff5662c97ca4627e7e4d03b531
               runc version: ac031b5bf1cc92239461125f4c1ffb760522bbf2
               init version: N/A (expected: v0.13.0)
               Security Options:
                apparmor
                seccomp
                 Profile: default
               Kernel Version: 4.4.0-31-generic
               Operating System: Ubuntu 16.04.1 LTS
               OSType: linux
               Architecture: x86_64
               CPUs: 2
               Total Memory: 1.937 GiB
               Name: ubuntu
               ID: H52R:7ZR6:EIIA:76JG:ORIY:BVKF:GSFU:HNPG:B5MK:APSC:SZ3Q:N326
               Docker Root Dir: /var/lib/docker
               Debug Mode: true
                File Descriptors: 30
                Goroutines: 123
                System Time: 2016-11-12T17:24:37.955404361-08:00
                EventsListeners: 0
               Http Proxy: http://test:test@proxy.example.com:8080
               Https Proxy: https://test:test@proxy.example.com:8080
               No Proxy: localhost,127.0.0.1,docker-registry.somecorporation.com
               Registry: https://index.docker.io/v1/
               WARNING: No swap limit support
               Labels:
                storage=ssd
                staging=true
               Experimental: false
               Insecure Registries:
                127.0.0.0/8
               Registry Mirrors:
                 http://192.168.1.2/
                 http://registry-mirror.example.com:5000/
               Live Restore Enabled: false

       The global -D option tells all docker commands to output debug information.

       The example below shows the output for a daemon running on Red Hat Enterprise Linux, using
       the  devicemapper  storage  driver.  As  can be seen in the output, additional information
       about the devicemapper storage driver is shown:

              $ docker info
              Client:
               Debug Mode: false

              Server:
               Containers: 14
                Running: 3
                Paused: 1
                Stopped: 10
               Untagged Images: 52
               Server Version: 1.10.3
               Storage Driver: devicemapper
                Pool Name: docker-202:2-25583803-pool
                Pool Blocksize: 65.54 kB
                Base Device Size: 10.74 GB
                Backing Filesystem: xfs
                Data file: /dev/loop0
                Metadata file: /dev/loop1
                Data Space Used: 1.68 GB
                Data Space Total: 107.4 GB
                Data Space Available: 7.548 GB
                Metadata Space Used: 2.322 MB
                Metadata Space Total: 2.147 GB
                Metadata Space Available: 2.145 GB
                Udev Sync Supported: true
                Deferred Removal Enabled: false
                Deferred Deletion Enabled: false
                Deferred Deleted Device Count: 0
                Data loop file: /var/lib/docker/devicemapper/devicemapper/data
                Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
                Library Version: 1.02.107-RHEL7 (2015-12-01)
               Execution Driver: native-0.2
               Logging Driver: json-file
               Plugins:
                Volume: local
                Network: null host bridge
               Kernel Version: 3.10.0-327.el7.x86_64
               Operating System: Red Hat Enterprise Linux Server 7.2 (Maipo)
               OSType: linux
               Architecture: x86_64
               CPUs: 1
               Total Memory: 991.7 MiB
               Name: ip-172-30-0-91.ec2.internal
               ID: I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S
               Docker Root Dir: /var/lib/docker
               Debug Mode: false
               Username: gordontheturtle
               Registry: https://index.docker.io/v1/
               Insecure registries:
                myinsecurehost:5000
                127.0.0.0/8

       You can also specify the output format:

              $ docker info --format '{{json .}}'
              {"ID":"I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S","Containers":14, ...}

OPTIONS

       -f, --format=""      Format the output using the given Go template

       -h, --help[=false]      help for info

SEE ALSO

       docker-system(1)