2015-06-21 16:41:38 -04:00
|
|
|
<!--[metadata]>
|
|
|
|
+++
|
|
|
|
title = "info"
|
|
|
|
description = "The info command description and usage"
|
|
|
|
keywords = ["display, docker, information"]
|
|
|
|
[menu.main]
|
|
|
|
parent = "smn_cli"
|
|
|
|
+++
|
|
|
|
<![end-metadata]-->
|
|
|
|
|
|
|
|
# info
|
|
|
|
|
2016-07-07 14:43:18 -04:00
|
|
|
```markdown
|
|
|
|
Usage: docker info
|
2015-06-21 16:41:38 -04:00
|
|
|
|
2016-07-07 14:43:18 -04:00
|
|
|
Display system-wide information
|
2015-10-03 11:56:41 -04:00
|
|
|
|
2016-07-07 14:43:18 -04:00
|
|
|
Options:
|
|
|
|
--help Print usage
|
|
|
|
```
|
2016-03-14 00:53:30 -04:00
|
|
|
|
|
|
|
This command displays system wide information regarding the Docker installation.
|
|
|
|
Information displayed includes the kernel version, number of containers and images.
|
|
|
|
The number of images shown is the number of unique images. The same image tagged
|
|
|
|
under different names is counted only once.
|
|
|
|
|
|
|
|
Depending on the storage driver in use, additional information can be shown, such
|
|
|
|
as pool name, data file, metadata file, data space used, total data space, metadata
|
|
|
|
space used, and total metadata space.
|
|
|
|
|
|
|
|
The data file is where the images are stored and the metadata file is where the
|
|
|
|
meta data regarding those images are stored. When run for the first time Docker
|
|
|
|
allocates a certain amount of data space and meta data space from the space
|
|
|
|
available on the volume where `/var/lib/docker` is mounted.
|
|
|
|
|
|
|
|
# EXAMPLES
|
|
|
|
|
|
|
|
## Display Docker system information
|
|
|
|
|
|
|
|
Here is a sample output for a daemon running on Ubuntu, using the overlay
|
2016-07-25 19:24:32 -04:00
|
|
|
storage driver and a node that is part of a 2-node swarm:
|
2015-06-21 16:41:38 -04:00
|
|
|
|
|
|
|
$ docker -D info
|
|
|
|
Containers: 14
|
2015-10-27 16:12:33 -04:00
|
|
|
Running: 3
|
|
|
|
Paused: 1
|
|
|
|
Stopped: 10
|
2015-06-21 16:41:38 -04:00
|
|
|
Images: 52
|
2016-06-16 19:29:23 -04:00
|
|
|
Server Version: 1.12.0-dev
|
2016-03-14 00:53:30 -04:00
|
|
|
Storage Driver: overlay
|
2015-06-21 16:41:38 -04:00
|
|
|
Backing Filesystem: extfs
|
|
|
|
Logging Driver: json-file
|
2016-02-18 05:10:31 -05:00
|
|
|
Cgroup Driver: cgroupfs
|
2015-11-25 07:54:54 -05:00
|
|
|
Plugins:
|
|
|
|
Volume: local
|
2016-06-16 19:29:23 -04:00
|
|
|
Network: bridge null host overlay
|
2016-06-13 22:57:19 -04:00
|
|
|
Swarm:
|
|
|
|
NodeID: 0gac67oclbxq7
|
2016-07-12 18:57:15 -04:00
|
|
|
Is Manager: true
|
2016-06-13 22:57:19 -04:00
|
|
|
Managers: 2
|
|
|
|
Nodes: 2
|
2016-06-16 19:29:23 -04:00
|
|
|
Runtimes: default
|
|
|
|
Default Runtime: default
|
|
|
|
Security Options: apparmor seccomp
|
2016-03-14 00:53:30 -04:00
|
|
|
Kernel Version: 4.4.0-21-generic
|
|
|
|
Operating System: Ubuntu 16.04 LTS
|
2015-06-13 03:39:19 -04:00
|
|
|
OSType: linux
|
2015-11-14 17:03:02 -05:00
|
|
|
Architecture: x86_64
|
2015-09-18 22:36:10 -04:00
|
|
|
CPUs: 24
|
|
|
|
Total Memory: 62.86 GiB
|
|
|
|
Name: docker
|
|
|
|
ID: I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S
|
2016-02-03 21:10:48 -05:00
|
|
|
Docker Root Dir: /var/lib/docker
|
2016-02-05 12:29:54 -05:00
|
|
|
Debug mode (client): true
|
2015-09-18 22:36:10 -04:00
|
|
|
Debug mode (server): true
|
|
|
|
File Descriptors: 59
|
|
|
|
Goroutines: 159
|
2016-03-14 00:53:30 -04:00
|
|
|
System Time: 2016-04-26T10:04:06.14689342-04:00
|
2015-09-18 22:36:10 -04:00
|
|
|
EventsListeners: 0
|
2016-03-14 00:53:30 -04:00
|
|
|
Http Proxy: http://test:test@localhost:8080
|
|
|
|
Https Proxy: https://test:test@localhost:8080
|
|
|
|
No Proxy: localhost,127.0.0.1,docker-registry.somecorporation.com
|
2015-06-21 16:41:38 -04:00
|
|
|
Username: svendowideit
|
2016-03-14 00:53:30 -04:00
|
|
|
Registry: https://index.docker.io/v1/
|
|
|
|
WARNING: No swap limit support
|
2015-06-21 16:41:38 -04:00
|
|
|
Labels:
|
|
|
|
storage=ssd
|
2016-03-14 00:53:30 -04:00
|
|
|
staging=true
|
2016-02-16 17:45:48 -05:00
|
|
|
Insecure registries:
|
|
|
|
myinsecurehost:5000
|
|
|
|
127.0.0.0/8
|
2015-06-21 16:41:38 -04:00
|
|
|
|
|
|
|
The global `-D` option tells all `docker` commands to output debug information.
|
|
|
|
|
2016-03-14 00:53:30 -04:00
|
|
|
The example below shows the output for a daemon running on Red Hat Enterprise Linux,
|
|
|
|
using the devicemapper storage driver. As can be seen in the output, additional
|
|
|
|
information about the devicemapper storage driver is shown:
|
|
|
|
|
|
|
|
$ docker info
|
|
|
|
Containers: 14
|
|
|
|
Running: 3
|
|
|
|
Paused: 1
|
|
|
|
Stopped: 10
|
|
|
|
Untagged Images: 52
|
|
|
|
Server Version: 1.10.3
|
|
|
|
Storage Driver: devicemapper
|
|
|
|
Pool Name: docker-202:2-25583803-pool
|
|
|
|
Pool Blocksize: 65.54 kB
|
|
|
|
Base Device Size: 10.74 GB
|
|
|
|
Backing Filesystem: xfs
|
|
|
|
Data file: /dev/loop0
|
|
|
|
Metadata file: /dev/loop1
|
|
|
|
Data Space Used: 1.68 GB
|
|
|
|
Data Space Total: 107.4 GB
|
|
|
|
Data Space Available: 7.548 GB
|
|
|
|
Metadata Space Used: 2.322 MB
|
|
|
|
Metadata Space Total: 2.147 GB
|
|
|
|
Metadata Space Available: 2.145 GB
|
|
|
|
Udev Sync Supported: true
|
|
|
|
Deferred Removal Enabled: false
|
|
|
|
Deferred Deletion Enabled: false
|
|
|
|
Deferred Deleted Device Count: 0
|
|
|
|
Data loop file: /var/lib/docker/devicemapper/devicemapper/data
|
|
|
|
Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
|
|
|
|
Library Version: 1.02.107-RHEL7 (2015-12-01)
|
|
|
|
Execution Driver: native-0.2
|
|
|
|
Logging Driver: json-file
|
|
|
|
Plugins:
|
|
|
|
Volume: local
|
|
|
|
Network: null host bridge
|
|
|
|
Kernel Version: 3.10.0-327.el7.x86_64
|
|
|
|
Operating System: Red Hat Enterprise Linux Server 7.2 (Maipo)
|
|
|
|
OSType: linux
|
|
|
|
Architecture: x86_64
|
|
|
|
CPUs: 1
|
|
|
|
Total Memory: 991.7 MiB
|
|
|
|
Name: ip-172-30-0-91.ec2.internal
|
|
|
|
ID: I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S
|
|
|
|
Docker Root Dir: /var/lib/docker
|
|
|
|
Debug mode (client): false
|
|
|
|
Debug mode (server): false
|
|
|
|
Username: xyz
|
|
|
|
Registry: https://index.docker.io/v1/
|
|
|
|
Insecure registries:
|
|
|
|
myinsecurehost:5000
|
|
|
|
127.0.0.0/8
|