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Tianon Gravi 20d84aa049 Update contributed man page file names and compilation script for the eventual possibility of non-man1 man pages (hopefully a Dockerfile.5.md, for example)

Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon)
Upstream-commit: f763075c74aeb8a829cb310164f36015fb4bc806
Component: engine

2014-04-22 06:43:08 -06:00

1.5 KiB

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% DOCKER(1) Docker User Manuals % William Henry % APRIL 2014

NAME

docker-info - Display system wide information

SYNOPSIS

docker info

DESCRIPTION

This command displays system wide information regarding the Docker installation. Information displayed includes the number of containers and images, pool name, data file, metadata file, data space used, total data space, metadata space used , total metadata space, execution driver, and the kernel version.

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.

OPTIONS

There are no available options.

EXAMPLES

Display Docker system information

Here is a sample output:

# docker info
Containers: 18
Images: 95
Storage Driver: devicemapper
 Pool Name: docker-8:1-170408448-pool
 Data file: /var/lib/docker/devicemapper/devicemapper/data
 Metadata file: /var/lib/docker/devicemapper/devicemapper/metadata
 Data Space Used: 9946.3 Mb
 Data Space Total: 102400.0 Mb
 Metadata Space Used: 9.9 Mb
 Metadata Space Total: 2048.0 Mb
Execution Driver: native-0.1
Kernel Version: 3.10.0-116.el7.x86_64

HISTORY

April 2014, Originally compiled by William Henry (whenry at redhat dot com) based on docker.io source material and internal work.

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