github.com/noxiouz/docker@v0.7.3-0.20160629055221-3d231c78e8c5/docs/reference/commandline/info.md (about)

     1  <!--[metadata]>
     2  +++
     3  title = "info"
     4  description = "The info command description and usage"
     5  keywords = ["display, docker, information"]
     6  [menu.main]
     7  parent = "smn_cli"
     8  +++
     9  <![end-metadata]-->
    10  
    11  # info
    12  
    13  
    14      Usage: docker info [OPTIONS]
    15  
    16      Display system-wide information
    17  
    18        --help              Print usage
    19  
    20  
    21  This command displays system wide information regarding the Docker installation.
    22  Information displayed includes the kernel version, number of containers and images.
    23  The number of images shown is the number of unique images. The same image tagged
    24  under different names is counted only once.
    25  
    26  Depending on the storage driver in use, additional information can be shown, such
    27  as pool name, data file, metadata file, data space used, total data space, metadata
    28  space used, and total metadata space.
    29  
    30  The data file is where the images are stored and the metadata file is where the
    31  meta data regarding those images are stored. When run for the first time Docker
    32  allocates a certain amount of data space and meta data space from the space
    33  available on the volume where `/var/lib/docker` is mounted.
    34  
    35  # EXAMPLES
    36  
    37  ## Display Docker system information
    38  
    39  Here is a sample output for a daemon running on Ubuntu, using the overlay
    40  storage driver and a node that is part of a 2 node Swarm cluster:
    41  
    42      $ docker -D info
    43      Containers: 14
    44       Running: 3
    45       Paused: 1
    46       Stopped: 10
    47      Images: 52
    48      Server Version: 1.12.0-dev
    49      Storage Driver: overlay
    50       Backing Filesystem: extfs
    51      Logging Driver: json-file
    52      Cgroup Driver: cgroupfs
    53      Plugins:
    54       Volume: local
    55       Network: bridge null host overlay
    56      Swarm: 
    57       NodeID: 0gac67oclbxq7
    58       IsManager: YES
    59       Managers: 2
    60       Nodes: 2
    61      Runtimes: default
    62      Default Runtime: default
    63      Security Options: apparmor seccomp
    64      Kernel Version: 4.4.0-21-generic
    65      Operating System: Ubuntu 16.04 LTS
    66      OSType: linux
    67      Architecture: x86_64
    68      CPUs: 24
    69      Total Memory: 62.86 GiB
    70      Name: docker
    71      ID: I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S
    72      Docker Root Dir: /var/lib/docker
    73      Debug mode (client): true
    74      Debug mode (server): true
    75       File Descriptors: 59
    76       Goroutines: 159
    77       System Time: 2016-04-26T10:04:06.14689342-04:00
    78       EventsListeners: 0
    79      Http Proxy: http://test:test@localhost:8080
    80      Https Proxy: https://test:test@localhost:8080
    81      No Proxy: localhost,127.0.0.1,docker-registry.somecorporation.com
    82      Username: svendowideit
    83      Registry: https://index.docker.io/v1/
    84      WARNING: No swap limit support
    85      Labels:
    86       storage=ssd
    87       staging=true
    88      Insecure registries:
    89       myinsecurehost:5000
    90       127.0.0.0/8
    91  
    92  The global `-D` option tells all `docker` commands to output debug information.
    93  
    94  The example below shows the output for a daemon running on Red Hat Enterprise Linux,
    95  using the devicemapper storage driver. As can be seen in the output, additional
    96  information about the devicemapper storage driver is shown:
    97  
    98      $ docker info
    99      Containers: 14
   100       Running: 3
   101       Paused: 1
   102       Stopped: 10
   103      Untagged Images: 52
   104      Server Version: 1.10.3
   105      Storage Driver: devicemapper
   106       Pool Name: docker-202:2-25583803-pool
   107       Pool Blocksize: 65.54 kB
   108       Base Device Size: 10.74 GB
   109       Backing Filesystem: xfs
   110       Data file: /dev/loop0
   111       Metadata file: /dev/loop1
   112       Data Space Used: 1.68 GB
   113       Data Space Total: 107.4 GB
   114       Data Space Available: 7.548 GB
   115       Metadata Space Used: 2.322 MB
   116       Metadata Space Total: 2.147 GB
   117       Metadata Space Available: 2.145 GB
   118       Udev Sync Supported: true
   119       Deferred Removal Enabled: false
   120       Deferred Deletion Enabled: false
   121       Deferred Deleted Device Count: 0
   122       Data loop file: /var/lib/docker/devicemapper/devicemapper/data
   123       Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
   124       Library Version: 1.02.107-RHEL7 (2015-12-01)
   125      Execution Driver: native-0.2
   126      Logging Driver: json-file
   127      Plugins:
   128       Volume: local
   129       Network: null host bridge
   130      Kernel Version: 3.10.0-327.el7.x86_64
   131      Operating System: Red Hat Enterprise Linux Server 7.2 (Maipo)
   132      OSType: linux
   133      Architecture: x86_64
   134      CPUs: 1
   135      Total Memory: 991.7 MiB
   136      Name: ip-172-30-0-91.ec2.internal
   137      ID: I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S
   138      Docker Root Dir: /var/lib/docker
   139      Debug mode (client): false
   140      Debug mode (server): false
   141      Username: xyz
   142      Registry: https://index.docker.io/v1/
   143      Insecure registries:
   144       myinsecurehost:5000
   145       127.0.0.0/8