github.com/kaisenlinux/docker.io@v0.0.0-20230510090727-ea55db55fac7/cli/man/src/system/info.md (about)

     1  This command displays system wide information regarding the Docker installation.
     2  Information displayed includes the kernel version, number of containers and images.
     3  The number of images shown is the number of unique images. The same image tagged
     4  under different names is counted only once.
     5  
     6  If a format is specified, the given template will be executed instead of the
     7  default format. Go's **text/template** package
     8  describes all the details of the format.
     9  
    10  Depending on the storage driver in use, additional information can be shown, such
    11  as pool name, data file, metadata file, data space used, total data space, metadata
    12  space used, and total metadata space.
    13  
    14  The data file is where the images are stored and the metadata file is where the
    15  meta data regarding those images are stored. When run for the first time Docker
    16  allocates a certain amount of data space and meta data space from the space
    17  available on the volume where `/var/lib/docker` is mounted.
    18  
    19  # EXAMPLES
    20  
    21  ## Display Docker system information
    22  
    23  The example below shows the output for a daemon running on Ubuntu Linux,
    24  using the `overlay2` storage driver. As can be seen in the output, additional
    25  information about the `overlay2` storage driver is shown:
    26  
    27  ```console
    28  $ docker info
    29  
    30  Client:
    31   Context:    default
    32   Debug Mode: false
    33   Plugins:
    34    buildx: Docker Buildx (Docker Inc.)
    35      Version:  v0.8.2
    36      Path:     /usr/libexec/docker/cli-plugins/docker-buildx
    37    compose: Docker Compose (Docker Inc.)
    38      Version:  v2.6.0
    39      Path:     /usr/libexec/docker/cli-plugins/docker-compose
    40    scan: Docker Scan (Docker Inc.)
    41      Version:  v0.17.0
    42      Path:     /usr/libexec/docker/cli-plugins/docker-scan
    43  
    44  Server:
    45   Containers: 14
    46    Running: 3
    47    Paused: 1
    48    Stopped: 10
    49   Images: 52
    50   Server Version: 22.06.0
    51   Storage Driver: overlay2
    52    Backing Filesystem: extfs
    53    Supports d_type: true
    54    Using metacopy: false
    55    Native Overlay Diff: true
    56    userxattr: false
    57   Logging Driver: json-file
    58   Cgroup Driver: systemd
    59   Cgroup Version: 2
    60   Plugins:
    61    Volume: local
    62    Network: bridge host ipvlan macvlan null overlay
    63    Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
    64   Swarm: inactive
    65   Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
    66   Default Runtime: runc
    67   Init Binary: docker-init
    68   containerd version: 212e8b6fa2f44b9c21b2798135fc6fb7c53efc16
    69   runc version: v1.1.1-0-g52de29d
    70   init version: de40ad0
    71   Security Options:
    72    apparmor
    73    seccomp
    74     Profile: builtin
    75    cgroupns
    76   Kernel Version: 5.15.0-25-generic
    77   Operating System: Ubuntu 22.04 LTS
    78   OSType: linux
    79   Architecture: x86_64
    80   CPUs: 1
    81   Total Memory: 991.7 MiB
    82   Name: ip-172-30-0-91.ec2.internal
    83   ID: 4cee4408-10d2-4e17-891c-a41736ac4536
    84   Docker Root Dir: /var/lib/docker
    85   Debug Mode: false
    86   Username: gordontheturtle
    87   Registry: https://index.docker.io/v1/
    88   Experimental: false
    89   Insecure registries:
    90    myinsecurehost:5000
    91    127.0.0.0/8
    92   Live Restore Enabled: false
    93  ```
    94  
    95  You can also specify the output format:
    96  
    97      $ docker info --format '{{json .}}'
    98      {"ID":"I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S","Containers":14, ...}