docker-machine inspect
Usage: docker-machine inspect [OPTIONS] [arg...]
Inspect information about a machine
Description:
Argument is a machine name.
Options:
--format, -f Format the output using the given go template.
By default, this renders information about a machine as JSON. If a format is specified, the given template is executed for each result.
Go’s text/template package describes all the details of the format.
In addition to the text/template syntax, there are some additional functions,
json and prettyjson, which can be used to format the output as JSON (documented below).
Examples
List all the details of a machine:
This is the default usage of inspect.
$ docker-machine inspect dev
{
"DriverName": "virtualbox",
"Driver": {
"MachineName": "docker-host-128be8d287b2028316c0ad5714b90bcfc11f998056f2f790f7c1f43f3d1e6eda",
"SSHPort": 55834,
"Memory": 1024,
"DiskSize": 20000,
"Boot2DockerURL": "",
"IPAddress": "192.168.5.99"
},
...
}
Get a machine’s IP address:
For the most part, you can pick out any field from the JSON in a fairly straightforward manner.
$ docker-machine inspect --format='{{.Driver.IPAddress}}' dev
192.168.5.99
Formatting details:
If you want a subset of information formatted as JSON, you can use the json
function in the template.
$ docker-machine inspect --format='' dev-fusion
{"Boot2DockerURL":"","CPUS":8,"CPUs":8,"CaCertPath":"/Users/hairyhenderson/.docker/machine/certs/ca.pem","DiskSize":20000,"IPAddress":"172.16.62.129","ISO":"/Users/hairyhenderson/.docker/machine/machines/dev-fusion/boot2docker-1.5.0-GH747.iso","MachineName":"dev-fusion","Memory":1024,"PrivateKeyPath":"/Users/hairyhenderson/.docker/machine/certs/ca-key.pem","SSHPort":22,"SSHUser":"docker","SwarmDiscovery":"","SwarmHost":"tcp://0.0.0.0:3376","SwarmMaster":false}
While this is usable, it’s not very human-readable. For this reason, there is
prettyjson:
$ docker-machine inspect --format='{{prettyjson .Driver}}' dev-fusion
{
"Boot2DockerURL": "",
"CPUS": 8,
"CPUs": 8,
"CaCertPath": "/Users/hairyhenderson/.docker/machine/certs/ca.pem",
"DiskSize": 20000,
"IPAddress": "172.16.62.129",
"ISO": "/Users/hairyhenderson/.docker/machine/machines/dev-fusion/boot2docker-1.5.0-GH747.iso",
"MachineName": "dev-fusion",
"Memory": 1024,
"PrivateKeyPath": "/Users/hairyhenderson/.docker/machine/certs/ca-key.pem",
"SSHPort": 22,
"SSHUser": "docker",
"SwarmDiscovery": "",
"SwarmHost": "tcp://0.0.0.0:3376",
"SwarmMaster": false
}