Package AWS Lambda function

• Install/start Docker
• Install python3
• Install nodejs (npm included)
• Install serverless: npm install -g serverless
• Install virtualenv of python pip install virtualenv

Create Serverless project

serverless create   --template aws-python3  --name project-name  --path project-path

Active virtualenv at project directory:

virtualenv venv --python=python3
# On Windows
.\venv\Script\activate
# On Linux
source venv/bin/activate

Install python package and code as usual in python virtual environment

Freeze python package to requirements.txt
pip freeze > requirements.txt

Install serverless-python-requirements and config the plugin at serverless.yml

npm install --save serverless-python-requirements

service: project-name # NOTE: update this with your service name
provider:
  name: aws
  runtime: python3.6
  region: aws-reagon
  role: aws-iam-role-with-the-privilidge-to-create-lambda-function
plugins:
  - serverless-python-requirements
# you can add packaging information here
package:
  exclude:
     - vent/**

functions:
  hello:
    handler: handler.hello
    events:
      - http:
          path: hello
          method: get
          cors: true
          integration: LAMBDA
      - schedule: rate(1 hour)

Deploy to AWS:

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serverless deploy

Useful tools:

• serverless logs --function hello #check last log
• serverless invoke -f hello --log #invoke the function