使用Docker的通用驱动创建Docker主机【Docker】docker-machine
Vagrantで立てた2つのvmで、vm1からvm2に向かってdocker-composeを使ってdockerを入れる。
今回はvmからvmへGenericプロドライバーを使う方法をやってみたかったのですが、普通にやるのであればVirtualboxプロバイダーを使うのが簡単だと思います。
Vagrantfile
# -*- mode: ruby -*-
# vi: set ft=ruby :
# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
VAGRANTFILE_API_VERSION = "2"
Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
# All Vagrant configuration is done here. The most common configuration
# options are documented and commented below. For a complete reference,
# please see the online documentation at vagrantup.com.
# If true, then any SSH connections made will enable agent forwarding.
# Default value: false
config.ssh.forward_agent = true
config.vm.define "vm1" do |d|
d.vm.box = "ubuntu/trusty64"
d.vm.network :private_network, ip: "192.168.33.10", virtualbox__intnet: "intnet"
end
config.vm.define "vm2" do |d|
d.vm.box = "ubuntu/trusty64"
d.vm.network :private_network, ip: "192.168.33.20", virtualbox__intnet: "intnet"
d.vm.provider "virtualbox" do |vb|
# Don't boot with headless mode
vb.gui = true
# Use VBoxManage to customize the VM. For example to change memory:
vb.customize ["modifyvm", :id, "--memory", "2048"]
end
end
end
Secure Shell (SSH)
我将使VM1无需密码即可通过SSH登录到VM2。
$ ssh-keygen
$ ssh-copy-id -i ~/.ssh/id_rsa.pub vagrant@192.168.33.20
$ ssh-add ~/.ssh/id_rsa
$ ssh vagrant@192.168.33.20 # 確認
Docker Machine的安装
$ curl -L https://github.com/docker/machine/releases/download/v0.7.0/docker-machine-`uname -s`-`uname -m` > /usr/local/bin/docker-machine
$ chmod +x /usr/local/bin/docker-machine
Dockerホストを作成する
$ docker-machine create --driver generic --generic-ip-address=192.168.33.20 --generic-ssh-user vagrant --generic-ssh-key ~/.ssh/id_rsa vm
対象ホストにdockerのインストールが始まる。
确认
正在跑步。
vagrant@vagrant-ubuntu-trusty-64:~$ docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM DOCKER ERRORS
vm * generic Running tcp://192.168.33.20:2376 v1.12.3
docker-machine inspectで情報を確認。
vagrant@vagrant-ubuntu-trusty-64:~$ docker-machine inspect vm
{
"ConfigVersion": 3,
"Driver": {
"IPAddress": "192.168.33.20",
"MachineName": "vm",
"SSHUser": "vagrant",
"SSHPort": 22,
"SSHKeyPath": "/home/vagrant/.docker/machine/machines/vm/id_rsa",
"StorePath": "/home/vagrant/.docker/machine",
"SwarmMaster": false,
"SwarmHost": "",
"SwarmDiscovery": "",
"EnginePort": 2376,
"SSHKey": "/home/vagrant/.ssh/id_rsa"
},
"DriverName": "generic",
"HostOptions": {
"Driver": "",
"Memory": 0,
"Disk": 0,
"EngineOptions": {
"ArbitraryFlags": [],
"Dns": null,
"GraphDir": "",
"Env": [],
"Ipv6": false,
"InsecureRegistry": [],
"Labels": [],
"LogLevel": "",
"StorageDriver": "",
"SelinuxEnabled": false,
"TlsVerify": true,
"RegistryMirror": [],
"InstallURL": "https://get.docker.com"
},
"SwarmOptions": {
"IsSwarm": false,
"Address": "",
"Discovery": "",
"Master": false,
"Host": "tcp://0.0.0.0:3376",
"Image": "swarm:latest",
"Strategy": "spread",
"Heartbeat": 0,
"Overcommit": 0,
"ArbitraryFlags": [],
"Env": null,
"IsExperimental": false
},
"AuthOptions": {
"CertDir": "/home/vagrant/.docker/machine/certs",
"CaCertPath": "/home/vagrant/.docker/machine/certs/ca.pem",
"CaPrivateKeyPath": "/home/vagrant/.docker/machine/certs/ca-key.pem",
"CaCertRemotePath": "",
"ServerCertPath": "/home/vagrant/.docker/machine/machines/vm/server.pem",
"ServerKeyPath": "/home/vagrant/.docker/machine/machines/vm/server-key.pem",
"ClientKeyPath": "/home/vagrant/.docker/machine/certs/key.pem",
"ServerCertRemotePath": "",
"ServerKeyRemotePath": "",
"ClientCertPath": "/home/vagrant/.docker/machine/certs/cert.pem",
"ServerCertSANs": [],
"StorePath": "/home/vagrant/.docker/machine/machines/vm"
}
},
"Name": "vm"
}
アクティブにする
为了使用在vm1上使用docker命令创建的Docker主机进行vm2的设置。
通过执行docker-machine env的输出来进行配置。
vagrant@vagrant-ubuntu-trusty-64:~$ docker-machine env vm
export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://192.168.33.20:2376"
export DOCKER_CERT_PATH="/home/vagrant/.docker/machine/machines/vm"
export DOCKER_MACHINE_NAME="vm"
# Run this command to configure your shell:
# eval $(docker-machine env vm)
vagrant@vagrant-ubuntu-trusty-64:~$ eval "$(docker-machine env vm 2> /dev/null)"
vagrant@vagrant-ubuntu-trusty-64:~$ docker-machine active
vm
在这里可以进行docker pull或docker run等任何操作。
