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|
% DOCKER(1) Docker User Manuals
% William Henry
% APRIL 2014
# NAME
docker-inspect - Return low-level information on a container/image
# SYNOPSIS
**docker inspect** [**-f**|**--format**="" CONTAINER|IMAGE
[CONTAINER|IMAGE...]
# DESCRIPTION
This displays all the information available in Docker for a given
container or image. By default, this will render all results in a JSON
array. If a format is specified, the given template will be executed for
each result.
# OPTIONS
**-f**, **--format**=""
The text/template package of Go describes all the details of the
format. See examples section
# EXAMPLES
## Getting information on a container
To get information on a container use it's ID or instance name:
#docker inspect 1eb5fabf5a03
[{
"ID": "1eb5fabf5a03807136561b3c00adcd2992b535d624d5e18b6cdc6a6844d9767b",
"Created": "2014-04-04T21:33:52.02361335Z",
"Path": "/usr/sbin/nginx",
"Args": [],
"Config": {
"Hostname": "1eb5fabf5a03",
"Domainname": "",
"User": "",
"Memory": 0,
"MemorySwap": 0,
"CpuShares": 0,
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"PortSpecs": null,
"ExposedPorts": {
"80/tcp": {}
},
"Tty": true,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"HOME=/",
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
],
"Cmd": [
"/usr/sbin/nginx"
],
"Dns": null,
"DnsSearch": null,
"Image": "summit/nginx",
"Volumes": null,
"VolumesFrom": "",
"WorkingDir": "",
"Entrypoint": null,
"NetworkDisabled": false,
"OnBuild": null,
"Context": {
"mount_label": "system_u:object_r:svirt_sandbox_file_t:s0:c0,c650",
"process_label": "system_u:system_r:svirt_lxc_net_t:s0:c0,c650"
}
},
"State": {
"Running": true,
"Pid": 858,
"ExitCode": 0,
"StartedAt": "2014-04-04T21:33:54.16259207Z",
"FinishedAt": "0001-01-01T00:00:00Z",
"Ghost": false
},
"Image": "df53773a4390e25936f9fd3739e0c0e60a62d024ea7b669282b27e65ae8458e6",
"NetworkSettings": {
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"Gateway": "172.17.42.1",
"Bridge": "docker0",
"PortMapping": null,
"Ports": {
"80/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "80"
}
]
}
},
"ResolvConfPath": "/etc/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/1eb5fabf5a03807136561b3c00adcd2992b535d624d5e18b6cdc6a6844d9767b/hostname",
"HostsPath": "/var/lib/docker/containers/1eb5fabf5a03807136561b3c00adcd2992b535d624d5e18b6cdc6a6844d9767b/hosts",
"Name": "/ecstatic_ptolemy",
"Driver": "devicemapper",
"ExecDriver": "native-0.1",
"Volumes": {},
"VolumesRW": {},
"HostConfig": {
"Binds": null,
"ContainerIDFile": "",
"LxcConf": [],
"Privileged": false,
"PortBindings": {
"80/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "80"
}
]
},
"Links": null,
"PublishAllPorts": false,
"DriverOptions": {
"lxc": null
},
"CliAddress": ""
}
## Getting the IP address of a container instance
To get the IP address of a container use:
# docker inspect --format='{{.NetworkSettings.IPAddress}}' 1eb5fabf5a03
172.17.0.2
## Listing all port bindings
One can loop over arrays and maps in the results to produce simple text
output:
# docker inspect --format='{{range $p, $conf := .NetworkSettings.Ports}} \
{{$p}} -> {{(index $conf 0).HostPort}} {{end}}' 1eb5fabf5a03
80/tcp -> 80
## Getting information on an image
Use an image's ID or name (e.g. repository/name[:tag]) to get information
on it.
# docker inspect 58394af37342
[{
"id": "58394af373423902a1b97f209a31e3777932d9321ef10e64feaaa7b4df609cf9",
"parent": "8abc22bad04266308ff408ca61cb8f6f4244a59308f7efc64e54b08b496c58db",
"created": "2014-02-03T16:10:40.500814677Z",
"container": "f718f19a28a5147da49313c54620306243734bafa63c76942ef6f8c4b4113bc5",
"container_config": {
"Hostname": "88807319f25e",
"Domainname": "",
"User": "",
"Memory": 0,
"MemorySwap": 0,
"CpuShares": 0,
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"PortSpecs": null,
"ExposedPorts": null,
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"HOME=/",
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
],
"Cmd": [
"/bin/sh",
"-c",
"#(nop) ADD fedora-20-dummy.tar.xz in /"
],
"Dns": null,
"DnsSearch": null,
"Image": "8abc22bad04266308ff408ca61cb8f6f4244a59308f7efc64e54b08b496c58db",
"Volumes": null,
"VolumesFrom": "",
"WorkingDir": "",
"Entrypoint": null,
"NetworkDisabled": false,
"OnBuild": null,
"Context": null
},
"docker_version": "0.6.3",
"author": "I P Babble \u003clsm5@ipbabble.com\u003e - ./buildcontainers.sh",
"config": {
"Hostname": "88807319f25e",
"Domainname": "",
"User": "",
"Memory": 0,
"MemorySwap": 0,
"CpuShares": 0,
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"PortSpecs": null,
"ExposedPorts": null,
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"HOME=/",
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
],
"Cmd": null,
"Dns": null,
"DnsSearch": null,
"Image": "8abc22bad04266308ff408ca61cb8f6f4244a59308f7efc64e54b08b496c58db",
"Volumes": null,
"VolumesFrom": "",
"WorkingDir": "",
"Entrypoint": null,
"NetworkDisabled": false,
"OnBuild": null,
"Context": null
},
"architecture": "x86_64",
"Size": 385520098
}]
# HISTORY
April 2014, Originally compiled by William Henry (whenry at redhat dot com)
based on docker.io source material and internal work.
|
