The lambda_pipeline from yyeongjin

lambda_pipeline's Introduction

Lambda Configuration

link https://ap-northeast-2.console.aws.amazon.com/lambda/home?region=ap-northeast-2#/create/function

Generates a function.

aws lambda create-function  --function-name dev-function   --runtime python3.10 --role arn:aws:iam::123456789999:role/service-role/lambda-role --zip-file fileb://lambda_function.zip --handler lambda_function.lambda_handler

lambda_function.zip content

lambda_function.py

import json

def lambda_handler(event, context):
    # TODO implement
    return {
        'statusCode': 200,
        'body': json.dumps('Hello from Lambda!')
    }

Create version

aws lambda publish-version --function-name dev-function

lambda_alias

aws lambda create-alias --function-name dev-function --function-version 1 --name development

appspec.yaml

version: 0.0
Resources:
  - dev-function:
      Type: AWS::Lambda::Function
      Properties:
        Name: "dev-function"
        Alias: "development"
        CurrentVersion: 1
        TargetVersion: 2

buildspec.yml

version: 0.2

phases:
  install:
    commands:
      - yum install -y zip
  pre_build:
    commands:
      - export CURRENT_VERSION=$(aws lambda get-alias --function-name dev-function --name development --query 'FunctionVersion' --output text)
      - NEW_VERSION=$((CURRENT_VERSION + 1))
      - export NEW_VERSION
      - zip lambda_function.zip lambda_function.py
  build:
    commands:
      - aws lambda create-alias --function-name dev-function --function-version $NEW_VERSION --name development
      - aws lambda update-function-code --function-name dev-function --zip-file fileb://lambda_function.zip
  post_build:
    commands:
      - sed -i "s/1/$CURRENT_VERSION/g" appspec.yaml
      - sed -i "s/2/$NEW_VERSION/g" appspec.yaml

artifacts:
  files:
    - appspec.yaml
  discard-paths: yes
cache:
  paths:
    - '/root/.m2/**/*'

lambda_function.py

import json

def lambda_handler(event, context):
    # TODO implement
    return {
        'statusCode': 200,
        'body': json.dumps('Hello from test!')
    }

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