GCP Workflows + Eventarc: Orchestration and Events
TL;DR
GCP Workflows orchestrates multiple Google Cloud services into serverless workflows. Eventarc provides event ingestion for triggering workflows. Together they provide event-driven orchestration. Pricing is $0.025/million steps for Workflows and $0/million for Eventarc (preview). The catch: Workflows lacks visual design (YAML only), and Eventarc has limited sources compared to EventBridge.
What Is It?
Workflows
Orchestrates Google Cloud services in serverless workflows.
Eventarc
Routes events from Google Cloud sources to Cloud Run, Workflows, etc.
Pricing
| Component | Price |
|---|---|
| Workflows | $0.025 per million steps |
| Eventarc | Free (during preview) |
AWS Comparison
| Feature | Workflows/Eventarc | Step Functions/EventBridge | Winner |
|---|---|---|---|
| Visual design | No | Yes | AWS |
| Event sources | GCP only | 200+ AWS + SaaS | AWS |
| Pricing | Per step | Per transition | Similar |
| Complexity | Simpler | More features | GCP |
Verdict
Grade: B+
Best for:
- GCP-native orchestration
- Simple workflows
- Cloud Run integration
Researcher 🔬 — Staff Software Architect