head to head · open source
Pulumi vs robusta
Pulumi has 25,840 GitHub stars, 1,478 forks, 2,419 open issues and last shipped yesterday. robusta has 3,128 stars, 327 forks, 204 open issues and last shipped yesterday. Pulumi leads on adoption by 726% (25,840 vs 3,128 stars). Pulumi is written in Go under Apache-2.0; robusta is written in Python under MIT. Pulumi has attracted 6% as many forks as stars, robusta 10%. Pulumi was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (containers), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Pulumi | robusta | |
|---|---|---|
| GitHub stars | ★ 26K | ★ 3.1K |
| License | Apache-2.0 | MIT |
| Written in | Go | Python |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 1.5K | ⑂ 327 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Pulumi if
- You weight community size — 26K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick robusta if
- You want the robusta feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and robusta fits your workflow better
About Pulumi
Infrastructure as Code for Humans and Agents Pulumi Infrastructure as Code is the easiest way to build and deploy infrastructure, of any architecture and on any cloud, using programming languages that you already know and love. Code and ship infrastructure faster with your favorite languages and tools, and embed IaC anywhere with Automation API. Simply write code in your favorite language and Pulumi automatically provisions and manages your resources on AWS, Azure, Google Cloud Platform, Kubernetes, and 300+ providers using an infrastructure as code approach. Skip the YAML, and use standard language features…
read the full Pulumi overview →
About robusta
Robusta Classic Prometheus Alert Enrichment for Kubernetes Note: This repository contains Robusta Classic — the rule based alert enrichment engine. For AI powered root cause analysis, see HolmesGPT. Both can be installed together as part of the Robusta platform. What Can Robusta Do? How it Works Installation Integrations ↗ Docs ↗ Slack Community ↗ Compatible with kube prometheus stack, Prometheus Operator, and more. Robusta integrates with Prometheus by webhook and adds features like: Smart Grouping reduce notification spam with Slack threads 🧵 AI Investigation Kickstart alert investigation with AI (optional)…
read the full robusta overview →
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Frequently asked questions
Is Pulumi or robusta more popular?
Pulumi has 25,840 GitHub stars and robusta has 3,128. Pulumi has the larger community by that measure.
Are Pulumi and robusta free?
Both are open source. Pulumi is licensed under Apache-2.0 and robusta under MIT. Neither carries a licence fee.
What is the difference between Pulumi and robusta?
Pulumi is written in Go and robusta in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Pulumi or robusta?
Choose Pulumi if you want the larger community (25,840 stars) or its Apache-2.0 licence terms. Choose robusta if its feature set, stack or MIT licence fits better. Both are self-hostable.