第14回 Cloud Foundry 輪読会 Go-CFを試してみる

1. 第14回 Cloud Foundry 輪読会
GO-CFを試してみる
Copyright(C) 2013 NTT Software Corporation All Rights Reserved.

2. 自己紹介
 名前

森川 健
 所属

NTTソフトウェア 技術開発センターＯＳＳ技術部門 クラウド推進室
 2013.4.19
 JGGUG向けのCloud Foundryを使ったハンズオンを実施

3. Cloud Foundry CLI
written in Go

4. Backgroundより※
 Project to rewrite the Cloud Foundry CLI tool
using Go. This project should currently be
considered alpha quality software and
should not be used in production
environments. If you need something more
stable, please check out the RubyGem.
※https://github.com/cloudfoundry/cli

5. コミットアクティビティ

6. その他主要コンポーネント等のGo化
※各リポジトリのコミット開始時期
 DEA_NG（Directory Server)
 2012/6~
 GOROUTER
 2012/12~
 GONATS
 2012/5~(cloudfoundry本家）
 2012/8~(derekcollison / nats-go)
 CLI(GO-CF)
 2013/8~
 HM9000
 2013/9~

7. とりあえずubuntuでGOを
apt-getインストール
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.2 LTS
Release:
12.04
Codename:
precise
$ sudo apt-get install golang-go
$ go version
go version go1

8. ビルド！
コミットハッシュは以下の時にトライ
16d5974a5046696509d31cae844fc3869338b41c
$ git clone
https://github.com/cloudfoundry/cli.git
$ cd cli
$ git submodule update --init --recursive
$ ./bin/build
# cf/terminal
cli/src/cf/terminal/ui_unix.go:43: undefined:
signal.Stop
動かない。。。

9. 失敗の理由を調べる
 http://golang.org/doc/go1.1
 The os/signal package has a
new function, Stop, which
stops the package delivering
any further signals to the
channel.

10. go1.1以降を手動で導入
 以下から落としてくる
 https://go.googlecode.com/files/go1.2rc1.linux-
amd64.tar.gz
 /usr/local/goに置いてひとまずPATHを通す
$ go version
go version devel +f4d1cb8d9a91 Thu Sep 19
22:34:33 2013 +1000 linux/amd64

11. ビルド再挑戦
コミットハッシュは以下の時にトライ
a79e769418ee9b2223d0353d577f742d0e872711
$ ./bin/build
$ cd out/
$ ls
go-cf
※gitの最新版を再取得をしているので
submoduleのupdateを事前にしています

12. Anyninesにtargetを向ける
$ ./go-cf target https://api.de.a9s.eu/
FAILED
Incorrect Usage.
NAME:
target - Set or view the targeted org or space
ALIAS:
t
USAGE:
cf target [-o ORG] [-s SPACE]
OPTIONS:
-o ''
organization
-s ''
space

13. apiコマンドでtargetを向ける
 ./go-cf api http://api.de.a9s.eu
 Setting api endpoint to http://api.de.a9s.eu...
 FAILED
 Invalid JSON response from server: json:
cannot unmarshal number into Go value of
type string

14. v2のall-in-oneに変更
$ ./go-cf api http://api.192.168.12.129.xip.io
Setting api endpoint to
http://api.192.168.12.129.xip.io...
OK
Warning: Insecure http API endpoint detected:
secure https API endpoints are recommended
API endpoint: http://api.192.168.12.129.xip.io (API
version: 2.0.0)
Not logged in. Use 'cf login' to log in.

15. login
$ ./go-cf login
Username> admin
Password>
Authenticating...
Org> system_domain
Space> develop
API endpoint: http://api.192.168.12.129.xip.io (API version: 2.0.0)
User:
admin
Org:
system_domain
Space:
develop

16. apps
$ ./go-cf apps
Getting apps in org system_domain and space
develop as admin...
OK
name state instances memory disk urls
sinatra started 1/1
256M 1G

17. scale
$ ./go-cf scale sinatra -i 2
Scaling app sinatra...
Stopping sinatra...
OK
Starting sinatra...
OK
0 of 2 instances running (2 starting)
Started

18. app
$ ./go-cf app sinatra
Showing health and status for app sinatra...
OK
state: started
instances: 2/2
usage: 256M x 2 instances
urls:
status since
cpu memory
disk
#0 running 2013-10-22 07:31:29 PM 0.0% 17.8M of 256M 53.4M of 1G
#1 running 2013-10-22 07:31:29 PM 0.0% 17.9M of 256M 53.4M of 1G

19. push
go-cf push sinatra
Creating sinatra...
OK
FAILED
Domain not found

20. 再度push
go-cf push sinatra -d hogehoge.com
Uploading sinatra...
OK
Stopping sinatra...
OK
Starting sinatra...
OK
........................
0 of 1 instances running (1 starting)
Started

21. Stacks
$ ./go-cf stacks
Getting stacks...
OK
name description
lucid64 Ubuntu 10.04

22. その他
 オフィシャルにリリースされているもの
 https://github.com/cloudfoundry/cli/releases
 v0.0.1.alphaのみ(2013/9/6日版）
 INSTALL.mdによるとwindowsでもパスを
通せば動く様子（未検証）
 https://github.com/cloudfoundry/cli/blob/master/I
NSTALL.md

23. v0.0.1.alpha時のヘルプ
COMMANDS:
target, t
Set or view the target
login, l
Log user in
set-env, se
Set an environment variable for an application
logout, lo
Log user out
push, p
Push an application
apps, a
List all applications in the currently selected space
delete, d
Delete an application
start, s
Start applications
stop, st
Stop applications
create-service, cs Create service instance
bind-service, bs Bind a service instance to an application
unbind-service, us Unbind a service instance from an application
delete-service, ds Delete a service instance
routes, r
List all routes
services, sv
List all services in the currently selected space
help, h

24. まとめ
 まだgihtub上のreleaseに1.0は存在しない
ものの機能が揃ってきている
 cf apps相当の処理でも体感出来る位のレ
スポンス差がある
 コマンドのオプションを極力1文字で済ま
せたいという思想を感じる（--instancesが
使えなくなっていたり）

25. 【参考】コマンド一覧(1/8)













$ ./go-cf -h
NAME:
cf - A command line tool to interact with Cloud Foundry
USAGE:
[environment variables] cf [global options] command [arguments...] [command options]
VERSION:
1.0.0.rc1-a79e769418
COMMANDS:
help
api
app
apps, a
auth
Show help
Set or view target api url
Display health and status for app
List all apps in the target space
Authenticate user non-interactively

26. 【参考】コマンド一覧(2/8)
















bind-service, bs
Bind a service instance to an app
buildpacks
List all buildpacks
create-buildpack
Create a buildpack
create-org, co
Create an org
create-service, cs
Create a service instance
create-service-auth-token
Create a service auth token
create-service-broker
Create a service broker
create-space
Create a space
create-user
Create a new user
create-user-provided-service, cups Make a user-provided service available to cf apps
delete, d
Delete an app
delete-buildpack
Delete a buildpack
delete-domain
Delete a domain
delete-org
Delete an org
delete-route
Delete a route
delete-service, ds
Delete a service instance

27. 【参考】コマンド一覧(3/8)

delete-service-auth-token
Delete a service auth token

delete-service-broker

delete-space

delete-user

domains

env, e

events

files, f
Print out a list of files in a directory or the contents of a specific file

login, l
Log user in

logout, lo

logs
Delete a service broker
Delete a space
Delete a user
List domains in the target org
Show all env variables for an app
Show recent app events
Log user out
Tail or show recent logs for an app

28. 【参考】コマンド一覧(4/8)

marketplace, m

map-domain

map-route

org

org-users

orgs, o

passwd, pw

push, p
Push a new app or sync changes to an existing app

quotas
List available usage quotas

rename
List available offerings in the marketplace
Map a domain to a space
Add a url route to an app
Show org info
Show org users by role
List all orgs
Change user password
Rename an app

29. 【参考】コマンド一覧(5/8)

rename-org
Rename an org

rename-service

rename-service-broker

rename-space
Rename a space

reserve-domain
Reserve a domain on an org for later use

reserve-route

restart, rs
Restart an app

routes, r
List all routes

scale
Rename a service instance
Rename a service broker
Reserve a url route on a space for later use
Change the disk quota, instance count, and memory limit for an app

30. 【参考】コマンド一覧(6/8)

service
Show service instance info

service-auth-tokens

service-brokers

services, s
List all services in the target space

set-env, se
Set an env variable for an app

set-org-role
Assign an org role to a user

set-quota
Define the quota for an org

set-space-role
Assign a space role to a user

share-domain
Share a domain with all orgs
List service auth tokens
List service brokers

31. 【参考】コマンド一覧(7/8)

space
Show target space's info

space-users

spaces
List all spaces in an org

stacks
List all stacks

start, st
Start an app

stop, sp
Stop an app

target, t
Set or view the targeted org or space

unbind-service, us

unmap-domain

unmap-route

unset-env

unset-org-role

unset-space-role
Show space users by role
Unbind a service instance from an app
Unmap a domain from a space
Remove a url route from an app
Remove an env variable
Remove an org role from a user
Remove a space role from a user

32. 【参考】コマンド一覧(8/8)

update-buildpack
Update a buildpack

update-service-broker

update-service-auth-token

update-user-provided-service, uups Update user-provided service name value pairs

Update a service broker
Update a service auth token
GLOBAL OPTIONS:

--version print the version

--help, -h show help

ENVIRONMENT VARIABLES:

CF_TRACE=true - will output HTTP requests and responses during command

HTTP_PROXY=http://proxy.example.com:8080 - set to your proxy

33. 記載されているシステム名、製品名は
各社および商標権者の登録商標あるいは
商標です。