github.com/olljanat/moby@v1.13.1/docs/reference/commandline/info.md (about)

     1  ---
     2  title: "info"
     3  description: "The info command description and usage"
     4  keywords: "display, docker, information"
     5  ---
     6  
     7  <!-- This file is maintained within the docker/docker Github
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    15  
    16  # info
    17  
    18  ```markdown
    19  Usage:  docker info [OPTIONS]
    20  
    21  Display system-wide information
    22  
    23  Options:
    24    -f, --format string   Format the output using the given Go template
    25        --help            Print usage
    26  ```
    27  
    28  This command displays system wide information regarding the Docker installation.
    29  Information displayed includes the kernel version, number of containers and images.
    30  The number of images shown is the number of unique images. The same image tagged
    31  under different names is counted only once.
    32  
    33  If a format is specified, the given template will be executed instead of the
    34  default format. Go's [text/template](http://golang.org/pkg/text/template/) package
    35  describes all the details of the format.
    36  
    37  Depending on the storage driver in use, additional information can be shown, such
    38  as pool name, data file, metadata file, data space used, total data space, metadata
    39  space used, and total metadata space.
    40  
    41  The data file is where the images are stored and the metadata file is where the
    42  meta data regarding those images are stored. When run for the first time Docker
    43  allocates a certain amount of data space and meta data space from the space
    44  available on the volume where `/var/lib/docker` is mounted.
    45  
    46  # Examples
    47  
    48  ## Display Docker system information
    49  
    50  Here is a sample output for a daemon running on Ubuntu, using the overlay2
    51  storage driver and a node that is part of a 2-node swarm:
    52  
    53      $ docker -D info
    54      Containers: 14
    55       Running: 3
    56       Paused: 1
    57       Stopped: 10
    58      Images: 52
    59      Server Version: 1.13.0
    60      Storage Driver: overlay2
    61       Backing Filesystem: extfs
    62       Supports d_type: true
    63       Native Overlay Diff: false
    64      Logging Driver: json-file
    65      Cgroup Driver: cgroupfs
    66      Plugins:
    67       Volume: local
    68       Network: bridge host macvlan null overlay
    69      Swarm: active
    70       NodeID: rdjq45w1op418waxlairloqbm
    71       Is Manager: true
    72       ClusterID: te8kdyw33n36fqiz74bfjeixd
    73       Managers: 1
    74       Nodes: 2
    75       Orchestration:
    76        Task History Retention Limit: 5
    77       Raft:
    78        Snapshot Interval: 10000
    79        Number of Old Snapshots to Retain: 0
    80        Heartbeat Tick: 1
    81        Election Tick: 3
    82       Dispatcher:
    83        Heartbeat Period: 5 seconds
    84       CA Configuration:
    85        Expiry Duration: 3 months
    86       Node Address: 172.16.66.128 172.16.66.129
    87       Manager Addresses:
    88        172.16.66.128:2477
    89      Runtimes: runc
    90      Default Runtime: runc
    91      Init Binary: docker-init
    92      containerd version: 8517738ba4b82aff5662c97ca4627e7e4d03b531
    93      runc version: ac031b5bf1cc92239461125f4c1ffb760522bbf2
    94      init version: N/A (expected: v0.13.0)
    95      Security Options:
    96       apparmor
    97       seccomp
    98        Profile: default
    99      Kernel Version: 4.4.0-31-generic
   100      Operating System: Ubuntu 16.04.1 LTS
   101      OSType: linux
   102      Architecture: x86_64
   103      CPUs: 2
   104      Total Memory: 1.937 GiB
   105      Name: ubuntu
   106      ID: H52R:7ZR6:EIIA:76JG:ORIY:BVKF:GSFU:HNPG:B5MK:APSC:SZ3Q:N326
   107      Docker Root Dir: /var/lib/docker
   108      Debug Mode (client): true
   109      Debug Mode (server): true
   110       File Descriptors: 30
   111       Goroutines: 123
   112       System Time: 2016-11-12T17:24:37.955404361-08:00
   113       EventsListeners: 0
   114      Http Proxy: http://test:test@proxy.example.com:8080
   115      Https Proxy: https://test:test@proxy.example.com:8080
   116      No Proxy: localhost,127.0.0.1,docker-registry.somecorporation.com
   117      Registry: https://index.docker.io/v1/
   118      WARNING: No swap limit support
   119      Labels:
   120       storage=ssd
   121       staging=true
   122      Experimental: false
   123      Insecure Registries:
   124       127.0.0.0/8
   125      Registry Mirrors:
   126        http://192.168.1.2/
   127        http://registry-mirror.example.com:5000/
   128      Live Restore Enabled: false
   129  
   130  The global `-D` option tells all `docker` commands to output debug information.
   131  
   132  The example below shows the output for a daemon running on Red Hat Enterprise Linux,
   133  using the devicemapper storage driver. As can be seen in the output, additional
   134  information about the devicemapper storage driver is shown:
   135  
   136      $ docker info
   137      Containers: 14
   138       Running: 3
   139       Paused: 1
   140       Stopped: 10
   141      Images: 52
   142      Server Version: 1.10.3
   143      Storage Driver: devicemapper
   144       Pool Name: docker-202:2-25583803-pool
   145       Pool Blocksize: 65.54 kB
   146       Base Device Size: 10.74 GB
   147       Backing Filesystem: xfs
   148       Data file: /dev/loop0
   149       Metadata file: /dev/loop1
   150       Data Space Used: 1.68 GB
   151       Data Space Total: 107.4 GB
   152       Data Space Available: 7.548 GB
   153       Metadata Space Used: 2.322 MB
   154       Metadata Space Total: 2.147 GB
   155       Metadata Space Available: 2.145 GB
   156       Udev Sync Supported: true
   157       Deferred Removal Enabled: false
   158       Deferred Deletion Enabled: false
   159       Deferred Deleted Device Count: 0
   160       Data loop file: /var/lib/docker/devicemapper/devicemapper/data
   161       Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
   162       Library Version: 1.02.107-RHEL7 (2015-12-01)
   163      Execution Driver: native-0.2
   164      Logging Driver: json-file
   165      Plugins:
   166       Volume: local
   167       Network: null host bridge
   168      Kernel Version: 3.10.0-327.el7.x86_64
   169      Operating System: Red Hat Enterprise Linux Server 7.2 (Maipo)
   170      OSType: linux
   171      Architecture: x86_64
   172      CPUs: 1
   173      Total Memory: 991.7 MiB
   174      Name: ip-172-30-0-91.ec2.internal
   175      ID: I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S
   176      Docker Root Dir: /var/lib/docker
   177      Debug mode (client): false
   178      Debug mode (server): false
   179      Username: gordontheturtle
   180      Registry: https://index.docker.io/v1/
   181      Insecure registries:
   182       myinsecurehost:5000
   183       127.0.0.0/8
   184  
   185  You can also specify the output format:
   186  
   187      $ docker info --format '{{json .}}'
   188  	{"ID":"I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S","Containers":14, ...}
   189  
   190  Here is a sample output for a daemon running on Windows Server 2016:
   191  
   192      E:\docker>docker info
   193      Containers: 1
   194       Running: 0
   195       Paused: 0
   196       Stopped: 1
   197      Images: 17
   198      Server Version: 1.13.0
   199      Storage Driver: windowsfilter
   200       Windows:
   201      Logging Driver: json-file
   202      Plugins:
   203       Volume: local
   204       Network: nat null overlay
   205      Swarm: inactive
   206      Default Isolation: process
   207      Kernel Version: 10.0 14393 (14393.206.amd64fre.rs1_release.160912-1937)
   208      Operating System: Windows Server 2016 Datacenter
   209      OSType: windows
   210      Architecture: x86_64
   211      CPUs: 8
   212      Total Memory: 3.999 GiB
   213      Name: WIN-V0V70C0LU5P
   214      ID: NYMS:B5VK:UMSL:FVDZ:EWB5:FKVK:LPFL:FJMQ:H6FT:BZJ6:L2TD:XH62
   215      Docker Root Dir: C:\control
   216      Debug Mode (client): false
   217      Debug Mode (server): false
   218      Registry: https://index.docker.io/v1/
   219      Insecure Registries:
   220       127.0.0.0/8
   221      Registry Mirrors:
   222        http://192.168.1.2/
   223        http://registry-mirror.example.com:5000/
   224      Live Restore Enabled: false