Docker-Machine使用简介

Why should I use Docker-machine

I have an older desktop system and want to run Docker on Mac or Windows

Installing Docker Machine on a Mac or Windows box with the Docker Toolbox installer provisions a local virtual machine with Docker Engine, gives you the ability to connect it, and run docker commands.

i

I want to provision Docker hosts on remote systems

If you have a Linux box as your primary system, and want to run docker commands, all you need to do is download and install Docker Engine. However, if you want an efficient way to provision multiple Docker hosts on a network, in the cloud or even locally, you need Docker Machine.

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Installing Docker-Machine

• Install Docker

• Download the Docker-machine binary and extract it to your PATH.

MacOS:

base=https://github.com/docker/machine/releases/tag/v0.16.0 &&
 curl-L(uname -s)-$(uname -m)>/usr/local/bin/docker-machine &&
 chmod+x /usr/local/bin/docker-machine

• Install bash completion scripts

• base=https://raw.githubusercontent.com/docker/machine/v0.16.0
   fori indocker-machine-prompt.bash docker-machine-wrapper.bash docker-machine.bash
   do
   sudowget"{i}"-P/etc/bash_completion.d
   doneTo enable the docker-machineshell prompt, add $(__docker_machine_ps1)to your PS1setting in~/.bashrc.
   ​

  To enable the docker-machine shell prompt, add $(__docker_machine_ps1) to your PS1 setting in ~/.bashrc.

PS1='[\u@\h \W '

Get Start with Docker-Machine

Create a machine

List available machines

docker-machine ls

Create a Machine in VMwareFusion on MacOS

docker-machine create --driver vmwarefusion default

the name of Machine is default

Get the environment commands for Your new VM.

$ docker-machine env default
 export DOCKER_TLS_VERIFY="1"
 export DOCKER_HOST="tcp://172.16.62.130:2376"
 export DOCKER_CERT_PATH="/Users//.docker/machine/machines/default"
 export DOCKER_MACHINE_NAME="default"
 
 
Run this command to configure your shell:
 
 
eval "$(docker-machine env default)"

these information is used to set Env to connect to this docker machine

Set Env

This sets environment variables for the current shell that the Docker client reads which specify the TLS settings. You need to do this each time you open a new shell or restart your machine.

(docker-machine env default)" #defaut is vm's name

Unset Env**

Run eval $(docker-machine env -u) to unset all DOCKER variables in the current shell.

Start and Stop machines

  docker-machinestartdefault

Use Docker-Machine to provision hosts on cloud providers

• Amazon Web Services

$ docker-machine create --driver amazonec2 --amazonec2-access-key AKI******* --amazonec2-secret-key 8T93C******* aws-sandbox

• Generic Linux Hosts

$ docker-machinecreate 
 --drivergeneric 
 --generic-ip-address=203.0.113.81 
 --generic-ssh-key~/.ssh/id_rsa 
 vm #vm is the machine's name

• VMware Fusion

$ docker-machinecreate --drivervmwarefusion vm

--vmwarefusion-boot2docker-url: URL for boot2docker image.

--vmwarefusion-cpu-count: Number of CPUs for the machine (-1 to use the number of CPUs available)

--vmwarefusion-disk-size: Size of disk for host VM (in MB).

--vmwarefusion-memory-size: Size of memory for host VM (in MB).

--vmwarefusion-no-share: Disable the mount of your home directory.

• VMware vSphere

• docker-machine create --driver vmwarevsphere --vmwarevsphere-username=user --vmwarevsphere-password=SECRET vm

Command Line

• docker-machine active

  See which machine is “active” (a machine is considered active if the DOCKER_HOST environment variable points to it).

• docker-machine config Name

  print the connection config for machine

• docker-machine inspect Name

  print the info of the Machine by JSON format

• docker-machine env {Name | -u}

  display the ENV of the specified machine

  display the Unset ENV info

• docker-machine ip Name

  get the machine's ip address

• docker-machine url NAME

  get the URL of the machine deamon

• docker-machine kill NAME

  Kill a machine

• docker-machine ls

  list machines

• docker-machine restart NAME

  restart a machine

• docker-machine rm NAME

  remove a machine

• docker-machine ssh NAME

  ssh to a machine

  we can also use this command to excute a remote command:

  docker-machine ssh NAME COMMAND

• docker-machine scp A B

  copy files between machines

• docker-machine mount NAME:/home/Dir1 LocalDir1

  mount the specified dir of the machine to local dir

  --unmount, -u Unmount instead of mount

• docker-machine start NAME

  start a machine

• docker-machine stop NAME

  stop the machine

• docker-machine status NAME

  get the status of a machine

• docker-machine upgrade NAME

  Upgrade a machine to the latest version of Docker

• docker-machine version

  show the docker-machine version or a machine docker version