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Docker MachineでDigital OceanにDocker環境を構築する
 Docker Machine を使って VirtualBox に Dockerホストを立てる

環境

MacOSX 10.10.4

Docker machineインストール

2015/7/3現在で
0.3.0が最新でした。

$ curl -LO https://github.com/docker/machine/releases/download/v0.3.0/docker-machine_darwin-amd64 mv docker-machine_darwin-amd64 /usr/local/bin/docker-machine $ chmod +x /usr/local/bin/docker-machine

取得したDigital Oceanのアクセストークンを環境変数に入れる
$ export DIGITALOCEAN_ACCESS_TOKEN=xxxxxxxxxxxxxxxxxxxxxx

DigitalOceanの場合

--digitalocean-region、--digitalocean-sizeのオプションはなくても動きます。

$ docker-machine create --driver digitalocean --digitalocean-access-token=$DIGITALOCEAN_ACCESS_TOKEN --digitalocean-image "docker" --digitalocean-region "nyc3" --digitalocean-size "512mb" test Creating SSH key... Creating Digital Ocean droplet... To see how to connect Docker to this machine, run: docker-machine env test

Dockerプロセス確認

$ docker-machine ssh test service docker status
docker start/running, process 2076

作成した環境の確認
`
$ docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM
test digitalocean Running tcp://xxx.xxx.xxx.xxx:2376

いろいろ取得

`
$ docker-machine env test
export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://xxx.xxx.xxx.xxx:2376"
export DOCKER_CERT_PATH="/Users/YOUR_HOME/.docker/machine/machines/test"
export DOCKER_MACHINE_NAME="test"

Run this command to configure your shell:

eval "$(docker-machine env test)"

$ docker-machine config test
--tlsverify --tlscacert="/Users/YOUR_HOME/.docker/machine/machines/test/ca.pem" --tlscert="/Users/YOUR_HOME/.docker/machine/machines/test/cert.pem" --tlskey="/Users/YOUR_HOME/.docker/machine/machines/test/key.pem" -H=tcp://xxx.xxx.xxx.xxx:2376
`

$ docker-machine inspect test { "DriverName": "digitalocean", "Driver": { "AccessToken": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", "DropletID": xxxxxx, "DropletName": "", "Image": "docker", "MachineName": "test", "IPAddress": "xxx.xxx.xxx.xxx", "Region": "nyc3", "SSHKeyID": xxxxxx, "SSHUser": "root", "SSHPort": 22, "Size": "512mb", "IPv6": false, "Backups": false, "PrivateNetworking": false, "CaCertPath": "/Users/YOUR_HOME/.docker/machine/certs/ca.pem", "PrivateKeyPath": "/Users/YOUR_HOME/.docker/machine/certs/ca-key.pem", "DriverKeyPath": "", "SwarmMaster": false, "SwarmHost": "tcp://0.0.0.0:3376", "SwarmDiscovery": "" }, "StorePath": "/Users/YOUR_HOME/.docker/machine/machines/test", "HostOptions": { "Driver": "", "Memory": 0, "Disk": 0, "EngineOptions": { "ArbitraryFlags": [], "Dns": null, "GraphDir": "", "Ipv6": false, "InsecureRegistry": [], "Labels": [], "LogLevel": "", "StorageDriver": "", "SelinuxEnabled": false, "TlsCaCert": "", "TlsCert": "", "TlsKey": "", "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, "TlsCaCert": "", "TlsCert": "", "TlsKey": "", "TlsVerify": false, "ArbitraryFlags": [] }, "AuthOptions": { "StorePath": "/Users/YOUR_HOME/.docker/machine/machines/test", "CaCertPath": "/Users/YOUR_HOME/.docker/machine/certs/ca.pem", "CaCertRemotePath": "", "ServerCertPath": "/Users/YOUR_HOME/.docker/machine/certs/server.pem", "ServerKeyPath": "/Users/YOUR_HOME/.docker/machine/certs/server-key.pem", "ClientKeyPath": "/Users/YOUR_HOME/.docker/machine/certs/key.pem", "ServerCertRemotePath": "", "ServerKeyRemotePath": "", "PrivateKeyPath": "/Users/YOUR_HOME/.docker/machine/certs/ca-key.pem", "ClientCertPath": "/Users/YOUR_HOME/.docker/machine/certs/cert.pem" } }, "SwarmHost": "", "SwarmMaster": false, "SwarmDiscovery": "", "CaCertPath": "", "PrivateKeyPath": "", "ServerCertPath": "", "ServerKeyPath": "", "ClientCertPath": "", "ClientKeyPath": "" }

VirualBox

$ docker-machine create --driver virtualbox dev Creating VirtualBox VM... Creating SSH key... Starting VirtualBox VM... Starting VM... To see how to connect Docker to this machine, run: docker-machine env dev

確認

$ docker-machine ls NAME ACTIVE DRIVER STATE URL SWARM dev virtualbox Running tcp://xxx.xxx.xxx.xxx:2376

いろいろ取得

`
$ docker-machine env dev
export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://xxx.xxx.xxx.xxx:2376"
export DOCKER_CERT_PATH="/Users/YOUR_HOME/.docker/machine/machines/dev"
export DOCKER_MACHINE_NAME="dev"

Run this command to configure your shell:

eval "$(docker-machine env dev)"

`

ログイン

$ docker-machine ssh dev Boot2Docker version 1.7.0, build master : 7960f90 - Thu Jun 18 18:31:45 UTC 2015 Docker version 1.7.0, build 0baf609

デフォルトパスのtcuserでSSHログイン可能

$ ssh docker@xxx.xxx.xxx.xxx docker@xxx.xxx.xxx.xxx's password: Boot2Docker version 1.7.0, build master : 7960f90 - Thu Jun 18 18:31:45 UTC 2015 Docker version 1.7.0, build 0baf609 docker@dev:~$

以上