http://vishwas.tech/go/#serverless

serverless-github-action-deployment.yml

name: Serverless Deployement Example

# Triggers the action everty time there is a code push to the master branch
on:
  push:
    branches:
      - master

# Specify what jobs to run
jobs:
  deploy:
    name: deploy
    runs-on: ubuntu-latest 
    env: #Setup environmental variables for serverless deployment
        AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
        AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}

    steps:
      # Use github defaut action to trigger action in this repo. Mandatory
      # https://help.github.com/en/actions/automating-your-workflow-with-github-actions/configuring-a-workflow#using-the-checkout-action
      - uses: actions/checkout@v1 

      - name: npm install dependencies
        run: npm install
        
      - name: Serverless
        uses: serverless/github-action@v1.53.0
        with:
          args: deploy