This content originally appeared on DEV Community and was authored by Quoc-Hung Hoang
Great News for the Serverless Community! 🚀
On August 7th, AWS released the aws-actions/aws-lambda-deploy action for GitHub Actions, designed to streamline the deployment and configuration updates for Lambda functions on AWS.
How Did Lambda Deployment Work Before?
Previously, developers had to manually define AWS SDK commands (or use IaC tools like Terraform or SAM) to build, package code artifacts, and upload them as zip files or through S3 buckets for Lambda function deployment:
- Build code from source
- Package into ZIP files or container images
- Upload to S3 buckets, ECR, or as zip files
- Update Lambda function configuration
The New Solution: Just One Action!
Now you simply need to declare aws-actions/aws-lambda-deploy in your GitHub Actions workflow with parameters like: function-name, code-artifacts-dir (directory containing Lambda function source code), handler, and runtime.
Under the hood, this action leverages the AWS SDK for JavaScript and packages everything into a unified, user-friendly experience.
Check out the detailed release announcement here.
Real-World Implementation
Here's a GitHub Actions workflow from the Instagram Post Extractor project—a Lambda function that extracts metadata from Instagram posts.
name: Lambda CD Pipeline
permissions:
id-token: write # Required for OIDC authentication
on:
push:
branches: [ development ]
workflow_dispatch:
env:
AWS_REGION: ap-southeast-1
S3_BUCKET: ig-post-extractor-artifact
LAMBDA_NAME: IgPostExtractor
jobs:
deploy:
name: Deploy
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v4
- name: Configure AWS credentials with OIDC
# Use OpenID Connect (OIDC) to authenticate with AWS to avoid
# storing AWS credentials as long-lived GitHub secrets
uses: aws-actions/configure-aws-credentials@v4
with:
role-to-assume: ${{ secrets.AWS_ROLE_TO_ASSUME }}
aws-region: ${{ env.AWS_REGION }}
- name: Deploy Lambda Function
id: deploy
uses: aws-actions/aws-lambda-deploy@v1
with:
function-name: ${{ env.LAMBDA_NAME }}
code-artifacts-dir: src/functions/
s3-bucket: ${{ env.S3_BUCKET }}
# Generate unique S3 key with timestamp and git commit hash
s3-key: functions/"$(date +%Y%m%d%H%M%S)-${{ github.sha }}"
handler: ig_post_extractor.lambda_handler
runtime: python3.12
This content originally appeared on DEV Community and was authored by Quoc-Hung Hoang
Quoc-Hung Hoang | Sciencx (2025-08-09T16:13:21+00:00) AWS Lambda Deployment Made Easy with GitHub Actions. Retrieved from https://www.scien.cx/2025/08/09/aws-lambda-deployment-made-easy-with-github-actions/
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