[Elastic Beanstalk] AmazonLinux（2015.03）でEB CLIを試してみた

はじめに

AWSチームのすずきです。

AWSのElastic Beanstalk、コマンドラインで操作するツールとして EB CLIが提供されています。

Amazon Linux 2015.03環境でEB CLIをインストールして、新規アプリケーションを環境を作成、撤去するまでの一連の手順を紹介します。

参考

• Elastic Beanstalk　開発者ガイド： EB CLI

実行環境

EB CLIは、AWS SDK for Python (Boto) を利用するツールのため、OS、Pythonの実行環境の確認を行います。

OS

$ cat /etc/system-release
Amazon Linux AMI release 2015.03

Python

$ python --version
Python 2.7.9

EC2ロール

Elastic Beanstalkの実行にはIAM権限が必要です。 今回はEC2ロールとして、AdministratorのIAM権限を付与したインスタンスを利用しました。

$ curl http://169.254.169.254/latest/meta-data/iam/security-credentials/
ec2-Role-Admin

AWS CLI設定

EC2ロールを利用しない場合、アクセスキーを登録することも可能です。 ただしセキュリティ事故の原因となる事を避けるため、アクセスキーの利用は極力避ける事をお薦めします。

$ aws configure
AWS Access Key ID [None]:
AWS Secret Access Key [None]:
Default region name [None]: ap-northeast-1
Default output format [None]:

インストール

pip, setuptools

最新バージョンの pip と、pipが必要とする setuptools のインストーラ（get-pip.py）を入手し、インストールを実施します。

$ curl -O https://bootstrap.pypa.io/get-pip.py
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 1379k 100 1379k 0 0 4271k 0 --:--:-- --:--:-- --:--:-- 4284k

$ sudo python27 get-pip.py
Collecting pip
Downloading pip-7.1.1-py2.py3-none-any.whl (1.1MB)
100% |████████████████████████████████| 1.1MB 245kB/s
Collecting wheel
Downloading wheel-0.24.0-py2.py3-none-any.whl (63kB)
100% |████████████████████████████████| 65kB 3.5MB/s
Installing collected packages: pip, wheel
Found existing installation: pip 6.1.1
Uninstalling pip-6.1.1:
Successfully uninstalled pip-6.1.1
Successfully installed pip-7.1.1 wheel-0.24.0

awsebcli

awsebcli（EB CLI）のインストールを実施します。

AmazonLinux(2015.03）ではpython27用のpipは「/usr/local/bin/pip」に配置される為、フルパスの指定が必要です。

$ which pip
/usr/local/bin/pip

$ sudo /usr/local/bin/pip install awsebcli
Collecting awsebcli
Downloading awsebcli-3.5.tar.gz (162kB)
100% |████████████████████████████████| 163kB 1.4MB/s
Collecting pyyaml>=3.11 (from awsebcli)
Downloading PyYAML-3.11.tar.gz (248kB)
100% |████████████████████████████████| 249kB 1.0MB/s
Requirement already satisfied (use --upgrade to upgrade): botocore>=1.0.1 in /usr/lib/python2.7/dist-packages (from awsebcli)
Collecting cement==2.4 (from awsebcli)
Downloading cement-2.4.0.tar.gz (129kB)
100% |████████████████████████████████| 131kB 1.8MB/s
Collecting colorama==0.3.3 (from awsebcli)
Downloading colorama-0.3.3.tar.gz
Collecting pathspec==0.3.3 (from awsebcli)
Downloading pathspec-0.3.3.tar.gz
Collecting docopt<0.7,>=0.6.1 (from awsebcli)
Downloading docopt-0.6.2.tar.gz
Collecting requests<2.7,>=2.6.1 (from awsebcli)
Downloading requests-2.6.2-py2.py3-none-any.whl (470kB)
100% |████████████████████████████████| 471kB 575kB/s
Collecting texttable<0.9,>=0.8.1 (from awsebcli)
Downloading texttable-0.8.3.tar.gz
Collecting websocket-client<1.0,>=0.11.0 (from awsebcli)
Downloading websocket_client-0.32.0.tar.gz (192kB)
100% |████████████████████████████████| 192kB 1.3MB/s
Collecting docker-py<1.2,>=1.1.0 (from awsebcli)
Downloading docker-py-1.1.0.tar.gz (42kB)
100% |████████████████████████████████| 45kB 4.4MB/s
Collecting dockerpty<0.4,>=0.3.2 (from awsebcli)
Downloading dockerpty-0.3.4.tar.gz
Collecting blessed==1.9.5 (from awsebcli)
Downloading blessed-1.9.5-py2.py3-none-any.whl (77kB)
100% |████████████████████████████████| 77kB 2.8MB/s
Requirement already satisfied (use --upgrade to upgrade): jmespath==0.7.1 in /usr/lib/python2.7/dist-packages (from botocore>=1.0.1->awsebcli)
Requirement already satisfied (use --upgrade to upgrade): python-dateutil<3.0.0,>=2.1 in /usr/lib/python2.7/dist-packages (from botocore>=1.0.1->awsebcli)
Requirement already satisfied (use --upgrade to upgrade): docutils>=0.10 in /usr/lib/python2.7/dist-packages (from botocore>=1.0.1->awsebcli)
Requirement already satisfied (use --upgrade to upgrade): six in /usr/lib/python2.7/dist-packages (from websocket-client<1.0,>=0.11.0->awsebcli)
Collecting wcwidth>=0.1.0 (from blessed==1.9.5->awsebcli)
Downloading wcwidth-0.1.4-py2.py3-none-any.whl
Building wheels for collected packages: awsebcli, pyyaml, cement, colorama, pathspec, docopt, texttable, websocket-client, docker-py, dockerpty
Running setup.py bdist_wheel for awsebcli
Stored in directory: /root/.cache/pip/wheels/19/d7/ee/e493a9dae4b1b1b52502befe49eae7a6d9522fbe9cce1aa2bf
Running setup.py bdist_wheel for pyyaml
Stored in directory: /root/.cache/pip/wheels/fa/db/f6/dee55793d344f1706dc4a5a693298f0115241d1085cc212364
Running setup.py bdist_wheel for cement
Stored in directory: /root/.cache/pip/wheels/be/8e/c3/6974d615636ced07e30f79c5cb50326e4aa346144e50751794
Running setup.py bdist_wheel for colorama
Stored in directory: /root/.cache/pip/wheels/e3/24/8d/aec3db961cfbc8e939dc1843126548e7d479349f96659067e9
Running setup.py bdist_wheel for pathspec
Stored in directory: /root/.cache/pip/wheels/83/a3/f5/e4ccf270c4fec947942a8774b0dd60d4305421501e0b490151
Running setup.py bdist_wheel for docopt
Stored in directory: /root/.cache/pip/wheels/0d/5c/a7/cb986749520c1950217b5d8405def5c18541322dbc411a80d1
Running setup.py bdist_wheel for texttable
Stored in directory: /root/.cache/pip/wheels/d6/44/0b/20a20bc6ab19b4a7f4a43fa67010cf5008140d8abab61d58d5
Running setup.py bdist_wheel for websocket-client
Stored in directory: /root/.cache/pip/wheels/48/45/ba/e955834950f99f1ca7a5778808d7bef1d4962edb1a4b14600a
Running setup.py bdist_wheel for docker-py
Stored in directory: /root/.cache/pip/wheels/ae/02/c0/3e415b95cc2f20db5c3089222952abe71d6f61c7b2b61eca78
Running setup.py bdist_wheel for dockerpty
Stored in directory: /root/.cache/pip/wheels/52/29/66/0c53de7d30b0e2a838ba252f6db929e9cc3d528892e7d759d5
Successfully built awsebcli pyyaml cement colorama pathspec docopt texttable websocket-client docker-py dockerpty
Installing collected packages: pyyaml, cement, colorama, pathspec, docopt, requests, texttable, websocket-client, docker-py, dockerpty, wcwidth, blessed, awsebcli
Found existing installation: PyYAML 3.10
DEPRECATION: Uninstalling a distutils installed project (pyyaml) has been deprecated and will be removed in a future version. This is due to the fact that uninstalling a distutils project will only partially uninstall the project.
Uninstalling PyYAML-3.10:
Successfully uninstalled PyYAML-3.10
Found existing installation: colorama 0.2.5
DEPRECATION: Uninstalling a distutils installed project (colorama) has been deprecated and will be removed in a future version. This is due to the fact that uninstalling a distutils project will only partially uninstall the project.
Uninstalling colorama-0.2.5:
Successfully uninstalled colorama-0.2.5
Found existing installation: requests 1.2.3
Uninstalling requests-1.2.3:
Successfully uninstalled requests-1.2.3
Successfully installed awsebcli-3.5 blessed-1.9.5 cement-2.4.0 colorama-0.3.3 docker-py-1.1.0 dockerpty-0.3.4 docopt-0.6.2 pathspec-0.3.3 pyyaml-3.11 requests-2.6.2 texttable-0.8.3 wcwidth-0.1.4 websocket-client-0.32.0

加筆（2015.8.23）

AmazonLinux(2015.03) にプリインストールされたpip(6.1.1）でも、ebcliのインストールは可能でした。 この場合「get-pip.py」のインストールは省略可能です。

$ sudo pip install ebcli
You are using pip version 6.1.1, however version 7.1.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
Collecting ebcli
Downloading ebcli-3.0.2.tar.gz
Collecting requires (from ebcli)
Downloading Requires-0.0.3.tar.gz
Collecting keyring (from ebcli)
Downloading keyring-5.4.tar.gz (68kB)
100% |████████████████████████████████| 69kB 5.5MB/s
Requirement already satisfied (use --upgrade to upgrade): requests in /usr/lib/python2.7/dist-packages (from ebcli)
Installing collected packages: requires, keyring, ebcli
Running setup.py install for requires
Running setup.py install for keyring
Running setup.py install for ebcli
Successfully installed ebcli-3.0.2 keyring-5.4 requires-0.0.3

確認

EB CLIのインストールに成功すると「eb」コマンドが利用可能となります。 2015年8月現在、EB CLIのバージョンは3.5でした。

eb --version
EB CLI 3.5 (Python 2.7.9)

テスト

テストコード設置

任意の作業用ディレクトリを作成し、PHPのテストコードを配置します。

$ mkdir -p ~/eb/helloword
$ cd ~/eb/helloword
$ cat << EOF > index.php
<!--?php echo '</p> <p>Hello World</p> <p>'; ?-->
EOF

アプリーケーションの設置

以下のアプリケーションを新規設置します。

• リージョン：ap-northeast-1 （東京）
• 新規アプリケーション：Create new Application
• アプリケーション名：helloword
• PHPバージョン：5.6
• SSH接続：実施する
• SSH鍵：EC2用の既存を指定

$ eb init

Select a default region
1) us-east-1 : US East (N. Virginia)
2) us-west-1 : US West (N. California)
3) us-west-2 : US West (Oregon)
4) eu-west-1 : EU (Ireland)
5) eu-central-1 : EU (Frankfurt)
6) ap-southeast-1 : Asia Pacific (Singapore)
7) ap-southeast-2 : Asia Pacific (Sydney)
8) ap-northeast-1 : Asia Pacific (Tokyo)
9) sa-east-1 : South America (Sao Paulo)
(default is 3): 8

Select an application to use
1) [ Create new Application ]
(default is 2): 1

Enter Application Name
(default is "helloword"):
Application helloword has been created.

It appears you are using PHP. Is this correct?
(y/n): y

Select a platform version.
1) PHP 5.6
2) PHP 5.5
3) PHP 5.4
4) PHP 5.3
(default is 1): 1
Do you want to set up SSH for your instances?
(y/n): y

Select a keypair.
1) xx-xxxxx
2) [ Create new KeyPair ]
(default is 2): 1

環境作成

名称「dev-env」とした環境を作成します。

$ eb create dev-env
Creating application version archive "app-150821_111235".
Uploading helloword/app-150821_111235.zip to S3. This may take a while.
Upload Complete.
Environment details for: dev-env
Application name: helloword
Region: ap-northeast-1
Deployed Version: app-150821_111235
Environment ID: e-xxxxxxxxxx
Platform: 64bit Amazon Linux 2015.03 v2.0.0 running PHP 5.6
Tier: WebServer-Standard
CNAME: UNKNOWN
Updated: 2015-08-21 11:12:38.421000+00:00
Printing Status:
INFO: createEnvironment is starting.
INFO: Using elasticbeanstalk-ap-northeast-1-784693731708 as Amazon S3 storage bucket for environment data.
INFO: Environment health has transitioned to Pending. There are no instances.
INFO: Created load balancer named: awseb-e-2-AWSEBLoa-14CZ8K6WCMY90
INFO: Created security group named: awseb-e-xxxxxxxxxx-stack-AWSEBSecurityGroup-1X1DPDH06QZOD
INFO: Created Auto Scaling launch configuration named: awseb-e-xxxxxxxxxx-stack-AWSEBAutoScalingLaunchConfiguration-N23F97XNMH7M
INFO: Waiting for EC2 instances to launch. This may take a few minutes.
INFO: Created Auto Scaling group named: awseb-e-xxxxxxxxxx-stack-AWSEBAutoScalingGroup-VH9WJELJKZDO
INFO: Added instance [i-057d18f7] to your environment.
INFO: Environment health has transitioned from Pending to Ok.
INFO: Successfully launched environment: dev-env

確認

ステータス

$ eb status
Environment details for: dev-env
Application name: helloword
Region: ap-northeast-1
Deployed Version: app-150821_122406
Environment ID: e-9mx8h88q2i
Platform: 64bit Amazon Linux 2015.03 v2.0.0 running PHP 5.6
Tier: WebServer-Standard
CNAME: dev-env-xxxxxxxxxx.elasticbeanstalk.com
Updated: 2015-08-21 12:29:03.800000+00:00
Status: Ready
Health: Green

サンプルPHP表示

eb環境で作成されたELB（EIP）は、「eb status」→「CNAME」で表示される 「elasticbeanstalk.com」ドメインのFQDNでアクセスする事が可能です。

$ curl dev-env-xxxxxxxxxx.elasticbeanstalk.com

Hello World

環境削除

• terminate を行うと、EC2、ELBが撤去されます。

$ eb terminate
The environment "dev-env" and all associated instances will be terminated.
To confirm, type the environment name: dev-env
INFO: terminateEnvironment is starting.
INFO: Deleted CloudWatch alarm named: awseb-e-xxxxxxxxxx-stack-AWSEBCloudwatchAlarmHigh-139RYJU7R5PBK
INFO: Deleted CloudWatch alarm named: awseb-e-xxxxxxxxxx-stack-AWSEBCloudwatchAlarmLow-1A8PB5D6302A4
INFO: Deleted Auto Scaling group policy named: arn:aws:autoscaling:ap-northeast-1:784693731708:scalingPolicy:83729b99-db17-46ff-bac8-6e8895a2aca1:autoScalingGroupName/awseb-e-xxxxxxxxxx-stack-AWSEBAutoScalingGroup-VH9WJELJKZDO:policyName/awseb-e-xxxxxxxxxx-stack-AWSEBAutoScalingScaleUpPolicy-16UVZFPINHOMD
INFO: Deleted Auto Scaling group policy named: arn:aws:autoscaling:ap-northeast-1:784693731708:scalingPolicy:35a332be-60ad-4dbb-a8f7-3f5a767cd72c:autoScalingGroupName/awseb-e-xxxxxxxxxx-stack-AWSEBAutoScalingGroup-VH9WJELJKZDO:policyName/awseb-e-xxxxxxxxxx-stack-AWSEBAutoScalingScaleDownPolicy-ZJZEEG21CHG0
INFO: Waiting for EC2 instances to terminate. This may take a few minutes.
INFO: Removed instance [i-057d18f7] from your environment.
WARN: Environment health has transitioned from Ok to Severe. ELB health is failing or not available for all instances.
INFO: Deleted Auto Scaling group named: awseb-e-xxxxxxxxxx-stack-AWSEBAutoScalingGroup-VH9WJELJKZDO
INFO: Deleted Auto Scaling launch configuration named: awseb-e-xxxxxxxxxx-stack-AWSEBAutoScalingLaunchConfiguration-N23F97XNMH7M
INFO: Deleted security group named: awseb-e-xxxxxxxxxx-stack-AWSEBSecurityGroup-1X1DPDH06QZOD
INFO: Deleted load balancer named: awseb-e-2-AWSEBLoa-14CZ8K6WCMY90
INFO: Environment health has transitioned from Severe to Ok. There are no instances. Auto Scaling group desired capacity is set to zero.
INFO: Deleted security group named: sg-0865206d
INFO: Deleting SNS topic for environment dev-env.
INFO: terminateEnvironment completed successfully.

まとめ

この様にAmazonLinux、EB CLIの実行環境として簡単に利用する事が可能です。

AmazonLinuxを利用する事で、開発環境やSDKのバージョンに由来する不具合や、 改行コードなど環境に依存するトラブルを未然に避ける効果も期待出来ます。

Elastic Beanstalkの多くの操作、WebGUI（AWSコンソール）上で行う事が可能ですが、EB CLIも是非お試しください。