deploy-streamlit-app.yml

name: Deploy Streamlit App to Cloud Run

on:
  push:
    branches:
      - master  # Triggers the action on push to the master branch
  workflow_dispatch:  # Allows manual triggering of the workflow from GitHub Actions

env:
  REPOSITORY: streamlit-app-repo
  IMAGE: streamlit-app

jobs:
  deploy:
    name: Deploy Streamlit to Cloud Run using Artifact Registry
    runs-on: ubuntu-latest

    steps:
    # Step 1: Checkout the repository
    - name: Checkout code
      uses: actions/checkout@v3

    # Step 2: Authenticate GCP
    - name: Authenticate GCP
      uses: google-github-actions/auth@v2
      with:
        credentials_json: '${{ secrets.GCP_SA_KEY }}' # GCP service account JSON key

    # Step 3: Set up Google Cloud SDK
    - name: Set up Cloud SDK
      uses: google-github-actions/setup-gcloud@v2
      
    # Step 4: Configure Docker to use Artifact Registry
    - name: Authenticate Docker to Artifact Registry
      run: |
        gcloud auth configure-docker ${{ secrets.GCP_REGION }}-docker.pkg.dev

    # Step 5: Build Docker Image for Streamlit app
    - name: Build Docker image
      run: |
        docker build -t ${{ secrets.GCP_REGION }}-docker.pkg.dev/${{ secrets.GCP_PROJECT_ID }}/$REPOSITORY/$IMAGE:$GITHUB_SHA .

    # Step 6: Push Docker image to Google Artifact Registry
    - name: Push Docker image to Artifact Registry
      run: |
        docker push ${{ secrets.GCP_REGION }}-docker.pkg.dev/${{ secrets.GCP_PROJECT_ID }}/$REPOSITORY/$IMAGE:$GITHUB_SHA

    # Step 7: Deploy to Cloud Run using the Artifact Registry image
    - name: Deploy to Cloud Run
      run: |
        gcloud run deploy streamlit-app-testing \
          --image ${{ secrets.GCP_REGION }}-docker.pkg.dev/${{ secrets.GCP_PROJECT_ID }}/$REPOSITORY/$IMAGE:$GITHUB_SHA \
          --platform managed \
          --region ${{ secrets.GCP_REGION }} \
          --allow-unauthenticated