github.com/portworx/docker@v1.12.1/man/docker-info.1.md (about)

     1  % DOCKER(1) Docker User Manuals
     2  % Docker Community
     3  % JUNE 2014
     4  # NAME
     5  docker-info - Display system-wide information
     6  
     7  # SYNOPSIS
     8  **docker info**
     9  [**--help**]
    10  
    11  
    12  # DESCRIPTION
    13  This command displays system wide information regarding the Docker installation.
    14  Information displayed includes the kernel version, number of containers and images.
    15  The number of images shown is the number of unique images. The same image tagged
    16  under different names is counted only once.
    17  
    18  Depending on the storage driver in use, additional information can be shown, such
    19  as pool name, data file, metadata file, data space used, total data space, metadata
    20  space used, and total metadata space.
    21  
    22  The data file is where the images are stored and the metadata file is where the
    23  meta data regarding those images are stored. When run for the first time Docker
    24  allocates a certain amount of data space and meta data space from the space
    25  available on the volume where `/var/lib/docker` is mounted.
    26  
    27  # OPTIONS
    28  **--help**
    29    Print usage statement
    30  
    31  # EXAMPLES
    32  
    33  ## Display Docker system information
    34  
    35  Here is a sample output for a daemon running on Ubuntu, using the overlay
    36  storage driver:
    37  
    38      $ docker -D info
    39      Containers: 14
    40       Running: 3
    41       Paused: 1
    42       Stopped: 10
    43      Images: 52
    44      Server Version: 1.12.0-dev
    45      Storage Driver: overlay
    46       Backing Filesystem: extfs
    47      Logging Driver: json-file
    48      Cgroup Driver: cgroupfs
    49      Plugins:
    50       Volume: local
    51       Network: bridge null host overlay
    52      Swarm: 
    53       NodeID: 0gac67oclbxq7
    54       IsManager: YES
    55       Managers: 2
    56       Nodes: 2
    57      Runtimes: default
    58      Default Runtime: default
    59      Security Options: apparmor seccomp
    60      Kernel Version: 4.4.0-21-generic
    61      Operating System: Ubuntu 16.04 LTS
    62      OSType: linux
    63      Architecture: x86_64
    64      CPUs: 24
    65      Total Memory: 62.86 GiB
    66      Name: docker
    67      ID: I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S
    68      Docker Root Dir: /var/lib/docker
    69      Debug mode (client): true
    70      Debug mode (server): true
    71       File Descriptors: 59
    72       Goroutines: 159
    73       System Time: 2016-04-26T10:04:06.14689342-04:00
    74       EventsListeners: 0
    75      Http Proxy: http://test:test@localhost:8080
    76      Https Proxy: https://test:test@localhost:8080
    77      No Proxy: localhost,127.0.0.1,docker-registry.somecorporation.com
    78      Username: svendowideit
    79      Registry: https://index.docker.io/v1/
    80      WARNING: No swap limit support
    81      Labels:
    82       storage=ssd
    83       staging=true
    84      Insecure registries:
    85       myinsecurehost:5000
    86       127.0.0.0/8
    87  
    88  The global `-D` option tells all `docker` commands to output debug information.
    89  
    90  The example below shows the output for a daemon running on Red Hat Enterprise Linux,
    91  using the devicemapper storage driver. As can be seen in the output, additional
    92  information about the devicemapper storage driver is shown:
    93  
    94      $ docker info
    95      Containers: 14
    96       Running: 3
    97       Paused: 1
    98       Stopped: 10
    99      Untagged Images: 52
   100      Server Version: 1.10.3
   101      Storage Driver: devicemapper
   102       Pool Name: docker-202:2-25583803-pool
   103       Pool Blocksize: 65.54 kB
   104       Base Device Size: 10.74 GB
   105       Backing Filesystem: xfs
   106       Data file: /dev/loop0
   107       Metadata file: /dev/loop1
   108       Data Space Used: 1.68 GB
   109       Data Space Total: 107.4 GB
   110       Data Space Available: 7.548 GB
   111       Metadata Space Used: 2.322 MB
   112       Metadata Space Total: 2.147 GB
   113       Metadata Space Available: 2.145 GB
   114       Udev Sync Supported: true
   115       Deferred Removal Enabled: false
   116       Deferred Deletion Enabled: false
   117       Deferred Deleted Device Count: 0
   118       Data loop file: /var/lib/docker/devicemapper/devicemapper/data
   119       Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
   120       Library Version: 1.02.107-RHEL7 (2015-12-01)
   121      Execution Driver: native-0.2
   122      Logging Driver: json-file
   123      Plugins:
   124       Volume: local
   125       Network: null host bridge
   126      Kernel Version: 3.10.0-327.el7.x86_64
   127      Operating System: Red Hat Enterprise Linux Server 7.2 (Maipo)
   128      OSType: linux
   129      Architecture: x86_64
   130      CPUs: 1
   131      Total Memory: 991.7 MiB
   132      Name: ip-172-30-0-91.ec2.internal
   133      ID: I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S
   134      Docker Root Dir: /var/lib/docker
   135      Debug mode (client): false
   136      Debug mode (server): false
   137      Username: xyz
   138      Registry: https://index.docker.io/v1/
   139      Insecure registries:
   140       myinsecurehost:5000
   141       127.0.0.0/8
   142  
   143  # HISTORY
   144  April 2014, Originally compiled by William Henry (whenry at redhat dot com)
   145  based on docker.com source material and internal work.
   146  June 2014, updated by Sven Dowideit <SvenDowideit@home.org.au>