在Google Cloud Platform啟用Docker Machine

啟動Google Cloud上的Docker Machine

顧名思義,是在Google Cloud上建立一台雲端主機,並且使用上面的環境來玩Docker...

$ docker-machine create \
  --driver google \
  --google-project mitac-cp300-taipei101 \
  google-machine

ex:

$ export project=your-project-ud
$ export machine_name=google-machine
$ docker-machine create \
> --driver google \
> --google-project $project $macine_name
Opening auth URL in browser.
https://accounts.google.com/o/oauth2/auth?client_id=22738965379-8arp7bah3uln9eoenproamovfjj1ac33.apps.googleusercontent.com&redirect_uri=urn%3Aietf%3Awg%3Aoauth%3A2.0%3Aoob&response_type=code&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fcompute&state=st1442118741402125441
If the URL doesn't open please open it manually and copy the code here.

# 這邊會跳出認證視窗,請用具備該權限的Google Account進行認證
# 認證後,將瀏覽器索取到的code貼回來指令列

Enter code: 4/ixnKZTv91eLY24C-9l-R_...HS7kOujHc
Got code: 4/ixnKZTv91eLY24C-9l-R_...ZHS7kOujHc
Saving token in /Users/peihsinsu/.docker/machine/machines/google-machine/gce_token
Creating host...
Generating SSH Key
Creating instance.
Creating firewall rule.
Waiting for Instance...
Uploading SSH Key
Waiting for SSH Key
To see how to connect Docker to this machine, run: docker-machine env google-machine

如果有需要詳細指定zone, size等資訊,可以參考:

  • --google-zone: The zone to launch the instance.
  • --google-machine-type: The type of instance.
  • --google-username: The username to use for the instance.
  • --google-project: required The name of your project to use when launching the instance.
  • --google-auth-token: Your oAuth token for the Google Cloud API.
  • --google-scopes: The scopes for OAuth 2.0 to Access Google APIs. See Google Compute Engine Doc.
  • --google-disk-size: The disk size of instance.
  • --google-disk-type: The disk type of instance.
  • --google-address: Instance’s static external IP (name or IP).
  • --google-preemptible: Instance preemptibility.

當主機開好之後,也可以直接使用gcloud指令,或到Web Console上確認機器是否已經長出來:

$ gcloud --project=$project compute instances list
NAME           ZONE         MACHINE_TYPE PREEMPTIBLE INTERNAL_IP   EXTERNAL_IP     STATUS
google-machine asia-east1-c f1-micro                 10.240.87.117 104.199.154.208 RUNNING

切換Docker環境到Google Cloud上

$ docker-machine env google-machine
export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://130.211.117.197:2376"
export DOCKER_CERT_PATH="/Users/peihsinsu/.docker/machine/machines/google-machine"
export DOCKER_MACHINE_NAME="google-machine"
# Run this command to configure your shell:
# eval "$(docker-machine env google-machine)"

$ eval $(docker-machine env google-machine)

$ env | grep DOCKER
DOCKER_HOST=tcp://130.211.117.197:2376
DOCKER_MACHINE_NAME=google-machine
DOCKER_TLS_VERIFY=1
DOCKER_CERT_PATH=/Users/peihsinsu/.docker/machine/machines/google-machine

啟動一台docker試試看

$ docker run -it peihsinsu/nodejs bash

這時候docker ps可以看到該主機已經run起來,此時連線檢視Compute Engine上的docker machine,也可以同時看到這台主機喔~

[email protected]:~$ sudo su -
[email protected]:~# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS          
     NAMES
86539a78a4b0        peihsinsu/nodejs    "bash"              4 minutes ago       Up 4 minutes                       
     cranky_cori
[email protected]:~#

關閉Docker Machine

當操作結束,不想要這台Docker Machine時,也可以透過docker machine的指令簡單地把Google Cloud上的機器關閉:

$ docker-machine rm google-machine
Successfully removed google-machine

參考:

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