AWS CDK Intro Workshop

SQS/SNS

cdk init

code:bash

$ cdk init app --language python

pipenv にて管理

code:bash

$ rm -rf .venv

$ rm source.bat

code:bash

$ pipenv --python /Users/r0306/.pyenv/versions/3.10.0/bin/python

$ pipenv shell

$ pipenv install --skip-lock

アプリのエントリポイント

code:bash

import aws_cdk as cdk

from workshop.workshop_stack import WorkshopStack

app = cdk.App()

WorkshopStack(app, "workshop")

app.synth()

メインスタック

code:bash

$ cat workshop/workshop_stack.py

from constructs import Construct

from aws_cdk import (

Duration,

Stack,

aws_iam as iam,

aws_sqs as sqs,

aws_sns as sns,

aws_sns_subscriptions as subs,

)

class WorkshopStack(Stack):

def __init__(self, scope: Construct, construct_id: str, **kwargs) -> None:

super().__init__(scope, construct_id, **kwargs)

queue = sqs.Queue(

self, "WorkshopQueue",

visibility_timeout=Duration.seconds(300),

)

topic = sns.Topic(

self, "WorkshopTopic"

)

topic.add_subscription(subs.SqsSubscription(queue))

アプリからテンプレートを生成

code:bash

$ cdk synth

環境の初期構築

code:bash

$ cdk bootstrap

S3 バケットとか作られる

デプロイ

code:bash

$ cdk deploy

API Gateway/Lambda

上記の SQS と SNS の記述を削除

workshop/workshop_stack.py

差分チェック

code:bash

$ cdk diff

リソース削除

code:bash

$ cdk deploy

Lambda の準備で最上位のディレクトリと同階層に lambda ディレクトリを作成

lambda/hello.py

code:python

import json

def handler(event, context):

print('request: {}'.format(json.dump(event)))

return {

'statusCode': 200,

'headers': {

'Content-Type': 'text/plain'

},

'body': 'Hello CDK {}\n'.format(event)

}

Lambda 関数をスタックに追加

workshop/workshop_stack.py

code:python

from constructs import Construct

from aws_cdk import (

Duration,

Stack,

aws_lambda as _lambda,

)

class WorkshopStack(Stack):

def __init__(self, scope: Construct, construct_id: str, **kwargs) -> None:

super().__init__(scope, construct_id, **kwargs)

# Lambda

hello = _lambda.Function(

self, 'HelloHandler',

runtime=_lambda.Runtime.PYTHON_3_9,

code=_lambda.Code.from_asset('lambda'),

handler='hello.handler',

)

差分チェック

code:bash

$ cdk diff

デプロイ

code:bash

$ cdk deploy