- My example with sam-beta-cdk: https://github.com/kyhau/slack-command-app-cdk
| Description | Repo/Link |
|---|---|
| AWS Serverless Application Model (SAM) | awslabs/serverless-application-model |
| AWS Serverless Application Model (SAM) CLI | awslabs/aws-sam-cli |
| AWS Serverless Application Model (SAM) Examples | awslabs/serverless-application-model/examples/ |
| AWS Serverless Application Repository | AWS Serverless Application Repository |
| Cookiecutter SAM for Python Lambda functions | aws-samples/cookiecutter-aws-sam-python |
-
Pipeline
-
AWS Serverless Application Repository (SAR)
- KeyError when running sam-beta-cdk ...
KeyError: '/home/.../lambda' Failed to execute script __main__- Known bug: aws/aws-sam-cli#2849
- Workaround:
- Add
"@aws-cdk/core:newStyleStackSynthesis": falseinto cdk.json - Add an empty requirements.txt to lambda/ (folder containing the Lambda functions).
- Add
- awslabs/serverless-application-model (SAM)
- awslabs/aws-sam-cli (SAM CLI, formerly known as SAM Local)
- Examples
- Cookiecutter SAM for Python Lambda functions |
Note: If docker volume mounting is required, need to use Windows cmd instead of WSL, otherwise the mounting will not work probably (without error).
Setup
# 1. Install Docker
# 2. Install Python 3.8
# 3. Install aws-sam-cli
pip install aws-sam-cli
sam init --runtime python3.8 --dependency-manager pip --name sam-app --output-dir . --app-template hello-world
cd sam-app/
Build and test locally
# To build on your workstation, run this command in folder containing
# SAM template. Built artifacts will be written to .aws-sam/build folder
sam build
sam local invoke --event events\event.json
sam local start-api
curl http://localhost:3000/
sam local start-lambda
# Run unit tests
pip install pytest pytest-mock --user
python -m pytest tests/ -v
Deploy
aws s3 mb s3://BUCKET_NAME
sam package --output-template-file packaged.yaml --s3-bucket BUCKET_NAME
sam deploy \
--template-file packaged.yaml \
--stack-name sam-app \
--capabilities CAPABILITY_IAM
sam-app$ aws cloudformation describe-stacks \
--stack-name sam-app \
--query 'Stacks[].Outputs[?OutputKey==`HelloWorldApi`]' \
--output table
sam logs -n HelloWorldFunction --stack-name sam-app --tail
Fetch, tail, and filter Lambda function logs
sam logs -n HelloWorldFunction --stack-name sam-app --tail
Cleanup
aws cloudformation delete-stack --stack-name sam-app
aws s3 rb s3://BUCKET_NAME