Pushgateway vs Robusta
A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Pushgateway | Robusta |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 87 · Excellent | 87 · Excellent |
| Category | Monitoring & Status | Monitoring & Status |
| License | Apache-2.0 | MIT |
| Language | Go | Python |
| Setup difficulty | Easy | Medium |
| Min. RAM | 32 MB | 256 MB |
| Deployment | docker, kubernetes, binary | kubernetes, helm |
| GitHub stars | ★ 3,369 | ★ 3,101 |
| First released | 2015 | 2021 |
| Replaces | Datadog | Datadog, PagerDuty |
What are Pushgateway and Robusta?
Pushgateway
The Prometheus Pushgateway allows ephemeral and batch jobs to expose their metrics to Prometheus. Jobs push metrics to the gateway, which Prometheus then scrapes on its regular schedule.
- Accepts pushed metrics
- Bridges batch jobs to Prometheus
- Persists metrics to disk
- Tiny footprint
Robusta
Robusta enhances Prometheus alerts for Kubernetes with enriched context, automated troubleshooting, and notifications to Slack and other channels. It helps teams understand and respond to cluster issues faster.
- Enriched Kubernetes alerts
- Automated remediation playbooks
- Slack and Teams notifications
- Crash and OOM diagnostics
Pushgateway vs Robusta: key differences
Pushgateway is written in Go, while Robusta is built with Python. Licensing differs — Apache-2.0 for Pushgateway versus MIT for Robusta. Pushgateway is the lighter option, starting around 32 MB of RAM against 256 MB for Robusta. Pushgateway is the more established project (first released 2015), while Robusta arrived in 2021. Pushgateway lists first-class Docker deployment; Robusta does not.
Why pick each one
Choose Pushgateway if…
- Solves batch job monitoring
- Simple to run
Watch out for
- Not for high-frequency metrics
- Can become a single point of failure
Choose Robusta if…
- Makes alerts actionable
- Strong Kubernetes focus
Watch out for
- Kubernetes only
- Best with Prometheus already running
Frequently asked questions
Is Pushgateway or Robusta better?
Pushgateway is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Robusta if its specific feature set fits your needs better.
Are Pushgateway and Robusta free and open-source?
Yes. Pushgateway is licensed under Apache-2.0 and Robusta under MIT. Both can be self-hosted at no software cost.
Can I run Pushgateway and Robusta with Docker?
Pushgateway: yes. Robusta: check the project docs for container support.
Which is lighter on resources, Pushgateway or Robusta?
Pushgateway has the smaller minimum footprint at 32 MB of RAM, compared to about 256 MB for Robusta. Real-world usage depends on library size, user count, and enabled features.