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テキスト

Usage: docker-machine ls [OPTIONS] [arg...]List machines

Options:   
--quiet, -q                                  Enable quiet mode   
--filter [--filter option --filter option]   Filter output based on conditions provided   
--timeout, -t "10"                           Timeout in seconds, default to 10s   
--format, -f                                 Pretty-print machines using a Go template

超时

ls命令尝试并行访问每个主机。如果给定主机在10秒内没有应答,则该ls命令将声明该主机处于Timeout状态。在某些情况下(连接不良,负载过高或故障排除时),您可能需要增加或减少此值。您可以使用-t标志来达到此目的,并以秒为单位的数值。

$ docker-machine ls -t 12NAME      
ACTIVE   DRIVER       STATE     URL                         
SWARM   DOCKER   ERRORSdefault   -        
virtualbox   Running   tcp://192.168.99.100:2376           
v1.9.1

过滤

过滤标志(--filter)格式是一key=value对。如果有多个过滤器,则传递多个标志(例如--filter "foo=bar" --filter "bif=baz"

目前支持的过滤器是:

  • 驱动程序(驱动名)

  • 群(群名)

  • 状态(Running|Paused|Saved|Stopped|Stopping|Starting|Error

  • 名称(由驱动程序返回的机器名称,支持golang风格的正则表达式)

  • 标签(机器创建的--engine-label选项,可以过滤label=<key>[=<value>]

实例

$ docker-machine ls
NAME   ACTIVE   DRIVER       STATE     URL                         SWARM   DOCKER   ERRORS
dev    -        virtualbox   Stopped
foo0   -        virtualbox   Running   tcp://192.168.99.105:2376           v1.9.1foo1   -        virtualbox   Running   tcp://192.168.99.106:2376           v1.9.1foo2   *        virtualbox   Running   tcp://192.168.99.107:2376           v1.9.1$ docker-machine ls --filter name=foo0
NAME   ACTIVE   DRIVER       STATE     URL                         SWARM   DOCKER   ERRORS
foo0   -        virtualbox   Running   tcp://192.168.99.105:2376           v1.9.1$ docker-machine ls --filter driver=virtualbox --filter state=Stopped
NAME   ACTIVE   DRIVER       STATE     URL   SWARM   DOCKER   ERRORS
dev    -        virtualbox   Stopped                 v1.9.1$ docker-machine ls --filter label=com.class.app=foo1 --filter label=com.class.app=foo2
NAME   ACTIVE   DRIVER       STATE     URL                         SWARM   DOCKER   ERRORS
foo1   -        virtualbox   Running   tcp://192.168.99.105:2376           v1.9.1foo2   *        virtualbox   Running   tcp://192.168.99.107:2376           v1.9.1

格式化

格式化选项(--format)将使用Go模板漂亮地打印机器。

Go模板的有效占位符列在下面:

占位符

描述

.Name

机器名称

.Active

机器是否活动?

.ActiveHost

机器是非主动主机吗?

.ActiveSwarm

该机器是一个活跃的群主?

.DriverName

司机的名字

.State

机器状态(正在运行,停止...)

.URL

机器网址

.Swarm

机器群名称

.Error

机器错误

.DockerVersion

Docker守护进程版本

.ResponseTime

主持人回应的时间

当使用--format选项,ls命令将按照模板声明的方式输出数据,或者在使用表指令时,也将包括列标题。

下面的示例使用没有标头的模板,并输出NameDriver所有正在运行的机器都用冒号分隔的条目:

$ docker-machine ls --format "{{.Name}}: {{.DriverName}}"default: virtualbox
ec2: amazonec2

若要以表格格式列出所有计算机名称及其驱动程序,可以使用:

$ docker-machine ls --format "table {{.Name}} {{.DriverName}}"NAME     DRIVERdefault  virtualbox
ec2      amazonec2
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