GitHub Actions supports various trigger events:

Repository Events:

• push: Code pushed to repository
• pull_request: PR opened, synchronized, or closed
• release: Release published or created
• create: Branch or tag created
• delete: Branch or tag deleted

Scheduled Events:

• schedule: Cron-based scheduling using cron syntax

Manual Events:

• workflow_dispatch: Manual trigger with optional inputs
• repository_dispatch: Triggered via API calls

External Events:

• webhook: Custom webhook events
• check_run: Check run completed
• deployment: Deployment event

Example:

on:
  push:
    branches: [main, develop]
  pull_request:
    branches: [main]
  schedule:
    - cron: '0 2 * * *'  # Daily at 2 AM
  workflow_dispatch: