github.com/itscaro/cli@v0.0.0-20190705081621-c9db0fe93829/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/cli GitHub
     8       repository at https://github.com/docker/cli/. Make all
     9       pull requests against that repo. If you see this file in
    10       another repository, consider it read-only there, as it will
    11       periodically be overwritten by the definitive file. Pull
    12       requests which include edits to this file in other repositories
    13       will be rejected.
    14  -->
    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  ## Description
    29  
    30  This command displays system wide information regarding the Docker installation.
    31  Information displayed includes the kernel version, number of containers and images.
    32  The number of images shown is the number of unique images. The same image tagged
    33  under different names is counted only once.
    34  
    35  If a format is specified, the given template will be executed instead of the
    36  default format. Go's [text/template](http://golang.org/pkg/text/template/) package
    37  describes all the details of the format.
    38  
    39  Depending on the storage driver in use, additional information can be shown, such
    40  as pool name, data file, metadata file, data space used, total data space, metadata
    41  space used, and total metadata space.
    42  
    43  The data file is where the images are stored and the metadata file is where the
    44  meta data regarding those images are stored. When run for the first time Docker
    45  allocates a certain amount of data space and meta data space from the space
    46  available on the volume where `/var/lib/docker` is mounted.
    47  
    48  ## Examples
    49  
    50  ### Show output
    51  
    52  The example below shows the output for a daemon running on Red Hat Enterprise Linux,
    53  using the `devicemapper` storage driver. As can be seen in the output, additional
    54  information about the `devicemapper` storage driver is shown:
    55  
    56  ```bash
    57  $ docker info
    58  Client:
    59   Debug Mode: false
    60  
    61  Server:
    62   Containers: 14
    63    Running: 3
    64    Paused: 1
    65    Stopped: 10
    66   Images: 52
    67   Server Version: 1.10.3
    68   Storage Driver: devicemapper
    69    Pool Name: docker-202:2-25583803-pool
    70    Pool Blocksize: 65.54 kB
    71    Base Device Size: 10.74 GB
    72    Backing Filesystem: xfs
    73    Data file: /dev/loop0
    74    Metadata file: /dev/loop1
    75    Data Space Used: 1.68 GB
    76    Data Space Total: 107.4 GB
    77    Data Space Available: 7.548 GB
    78    Metadata Space Used: 2.322 MB
    79    Metadata Space Total: 2.147 GB
    80    Metadata Space Available: 2.145 GB
    81    Udev Sync Supported: true
    82    Deferred Removal Enabled: false
    83    Deferred Deletion Enabled: false
    84    Deferred Deleted Device Count: 0
    85    Data loop file: /var/lib/docker/devicemapper/devicemapper/data
    86    Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
    87    Library Version: 1.02.107-RHEL7 (2015-12-01)
    88   Execution Driver: native-0.2
    89   Logging Driver: json-file
    90   Plugins:
    91    Volume: local
    92    Network: null host bridge
    93   Kernel Version: 3.10.0-327.el7.x86_64
    94   Operating System: Red Hat Enterprise Linux Server 7.2 (Maipo)
    95   OSType: linux
    96   Architecture: x86_64
    97   CPUs: 1
    98   Total Memory: 991.7 MiB
    99   Name: ip-172-30-0-91.ec2.internal
   100   ID: I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S
   101   Docker Root Dir: /var/lib/docker
   102   Debug Mode: false
   103   Username: gordontheturtle
   104   Registry: https://index.docker.io/v1/
   105   Insecure registries:
   106    myinsecurehost:5000
   107    127.0.0.0/8
   108  ```
   109   
   110  ### Show debugging output
   111  
   112  Here is a sample output for a daemon running on Ubuntu, using the overlay2
   113  storage driver and a node that is part of a 2-node swarm:
   114  
   115  ```bash
   116  $ docker -D info
   117  Client:
   118   Debug Mode: true
   119  
   120  Server:
   121   Containers: 14
   122    Running: 3
   123    Paused: 1
   124    Stopped: 10
   125   Images: 52
   126   Server Version: 1.13.0
   127   Storage Driver: overlay2
   128    Backing Filesystem: extfs
   129    Supports d_type: true
   130    Native Overlay Diff: false
   131   Logging Driver: json-file
   132   Cgroup Driver: cgroupfs
   133   Plugins:
   134    Volume: local
   135    Network: bridge host macvlan null overlay
   136   Swarm: active
   137    NodeID: rdjq45w1op418waxlairloqbm
   138    Is Manager: true
   139    ClusterID: te8kdyw33n36fqiz74bfjeixd
   140    Managers: 1
   141    Nodes: 2
   142    Orchestration:
   143     Task History Retention Limit: 5
   144    Raft:
   145     Snapshot Interval: 10000
   146     Number of Old Snapshots to Retain: 0
   147     Heartbeat Tick: 1
   148     Election Tick: 3
   149    Dispatcher:
   150     Heartbeat Period: 5 seconds
   151    CA Configuration:
   152     Expiry Duration: 3 months
   153    Root Rotation In Progress: false
   154    Node Address: 172.16.66.128 172.16.66.129
   155    Manager Addresses:
   156     172.16.66.128:2477
   157   Runtimes: runc
   158   Default Runtime: runc
   159   Init Binary: docker-init
   160   containerd version: 8517738ba4b82aff5662c97ca4627e7e4d03b531
   161   runc version: ac031b5bf1cc92239461125f4c1ffb760522bbf2
   162   init version: N/A (expected: v0.13.0)
   163   Security Options:
   164    apparmor
   165    seccomp
   166     Profile: default
   167   Kernel Version: 4.4.0-31-generic
   168   Operating System: Ubuntu 16.04.1 LTS
   169   OSType: linux
   170   Architecture: x86_64
   171   CPUs: 2
   172   Total Memory: 1.937 GiB
   173   Name: ubuntu
   174   ID: H52R:7ZR6:EIIA:76JG:ORIY:BVKF:GSFU:HNPG:B5MK:APSC:SZ3Q:N326
   175   Docker Root Dir: /var/lib/docker
   176   Debug Mode: true
   177    File Descriptors: 30
   178    Goroutines: 123
   179    System Time: 2016-11-12T17:24:37.955404361-08:00
   180    EventsListeners: 0
   181   Http Proxy: http://test:test@proxy.example.com:8080
   182   Https Proxy: https://test:test@proxy.example.com:8080
   183   No Proxy: localhost,127.0.0.1,docker-registry.somecorporation.com
   184   Registry: https://index.docker.io/v1/
   185   WARNING: No swap limit support
   186   Labels:
   187    storage=ssd
   188    staging=true
   189   Experimental: false
   190   Insecure Registries:
   191    127.0.0.0/8
   192   Registry Mirrors:
   193     http://192.168.1.2/
   194     http://registry-mirror.example.com:5000/
   195   Live Restore Enabled: false
   196  ```
   197  
   198  The global `-D` option causes all `docker` commands to output debug information.
   199  
   200  ### Format the output
   201  
   202  You can also specify the output format:
   203  
   204  ```bash
   205  $ docker info --format '{{json .}}'
   206  
   207  {"ID":"I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S","Containers":14, ...}
   208  ```
   209  
   210  ### Run `docker info` on Windows
   211  
   212  Here is a sample output for a daemon running on Windows Server 2016:
   213  
   214  ```none
   215  E:\docker>docker info
   216  Client:
   217   Debug Mode: false
   218  
   219  Server:
   220   Containers: 1
   221    Running: 0
   222    Paused: 0
   223    Stopped: 1
   224   Images: 17
   225   Server Version: 1.13.0
   226   Storage Driver: windowsfilter
   227    Windows:
   228   Logging Driver: json-file
   229   Plugins:
   230    Volume: local
   231    Network: nat null overlay
   232   Swarm: inactive
   233   Default Isolation: process
   234   Kernel Version: 10.0 14393 (14393.206.amd64fre.rs1_release.160912-1937)
   235   Operating System: Windows Server 2016 Datacenter
   236   OSType: windows
   237   Architecture: x86_64
   238   CPUs: 8
   239   Total Memory: 3.999 GiB
   240   Name: WIN-V0V70C0LU5P
   241   ID: NYMS:B5VK:UMSL:FVDZ:EWB5:FKVK:LPFL:FJMQ:H6FT:BZJ6:L2TD:XH62
   242   Docker Root Dir: C:\control
   243   Debug Mode: false
   244   Registry: https://index.docker.io/v1/
   245   Insecure Registries:
   246    127.0.0.0/8
   247   Registry Mirrors:
   248     http://192.168.1.2/
   249     http://registry-mirror.example.com:5000/
   250   Live Restore Enabled: false
   251  ```