kubernetes-sigs/controller-runtime
Repo for the controller-runtime subproject of kubebuilder (sig-apimachinery)
⚡ Executive Summary & Quick Facts
Authoritative Sourcecontroller-runtime is controller-runtime is an open-source project written in Go: Repo for the controller-runtime subproject of kubebuilder (sig-apimachinery)..
| Repository | kubernetes-sigs/controller-runtime ↗ |
|---|---|
| Primary Category | k8s sig api machinery |
| Language & Stack | Go |
| Software License | Apache-2.0 |
| Community Traction | ★ 3K stars · ⑂ 1.3K forks · #3,486 globally |
| Maintenance | ● Active (Last commit: Oct 19, 2026) · 61 open issues |
| Target Audience | Developers and engineering teams building with Go, seeking reliable, tested, and actively maintained tooling for production workloads. |
Star History
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+74
STARS · LAST 30 DAYS
2
PER DAY
#453
MOST-STARRED Go
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +14 | +74 | +180 |
| Per day | 2 | 2 | 2 |
| Forks gained | +7 | +27 | +66 |
controller-runtime gained 74 stars in the last 30 days, about 2 a day, and now has 3K. It is about 8 years old and has averaged roughly 372 stars a year. It ranks #453 among Go repositories and #3,486 across all languages on GitHubRepo.
Trending Record
3
DAYS ON TRENDING
#6296
BEST RANK
Oct 19, 2026
FIRST APPEARANCE
Active
STATUS TODAY
controller-runtime has maintained a continuous presence across global trending indexes, peaking at #6296. Below is the 30-day activity profile:
💡 Overview
controller-runtime is an open-source project written in Go: Repo for the controller-runtime subproject of kubebuilder (sig-apimachinery).
Engineered for speed, consistency, and developer ease, it solves common hurdles in k8s-sig-api-machinery. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in Go for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ go install github.com/kubernetes-sigs/controller-runtime@latest⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Go >= 1.21 runtime environment
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
controller-runtime coordinates its core functionality through a modular Go pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed controller-runtime into Go backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open Apache-2.0 license.
🚀 Getting Started
Install controller-runtime using your package manager: `go install github.com/kubernetes-sigs/controller-runtime@latest`
Initialize your project workspace or configuration file for controller-runtime.
Import controller-runtime into your codebase or invoke it directly from your terminal.
Execute your test suite or run `controller-runtime --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Go, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
kubernetes-sigs/controller-runtime is currently ranked #3,486 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #3,481 | spliit-app/spliit | TypeScript | ★ 3K | Compare ↗ |
| #3,482 | shadcn-ui/lint | TypeScript | ★ 3K | Compare ↗ |
| #3,483 | thymeleaf/thymeleaf | Java | ★ 3K | Compare ↗ |
| #3,484 | jsr-io/jsr | Rust | ★ 3K | Compare ↗ |
| #3,485 | thephpleague/commonmark | PHP | ★ 3K | Compare ↗ |
| #3,486 | kubernetes-sigs/controller-runtime This Project | Go | ★ 3K | |
| #3,486 | kube-vip/kube-vip | Go | ★ 3K | Compare ↗ |
| #3,486 | google/osv.dev | Go | ★ 3K | Compare ↗ |
| #3,486 | QwenAudio/qwen-audio-agent | JavaScript | ★ 3K | Compare ↗ |
| #3,490 | sunspot/sunspot | JavaScript | ★ 3K | Compare ↗ |
| #3,491 | NuvioMedia/NuvioTV | Kotlin | ★ 3K | Compare ↗ |
Frequently Asked Questions
What does controller-runtime do? +
Repo for the controller-runtime subproject of kubebuilder (sig-apimachinery)
What language is controller-runtime written in? +
The primary language is Go. Topics include: k8s-sig-api-machinery.
Is controller-runtime actively maintained? +
Yes, the last recorded push was on Oct 19, 2026 with 61 open issues being tracked.
How many stars does controller-runtime have? +
controller-runtime has 2,979 stars and 1,328 forks on GitHub.
How does controller-runtime rank among GitHub repositories? +
With 2,979 stars, kubernetes-sigs/controller-runtime is ranked #3,486 globally across all repositories tracked on GitHubRepo and #453 among Go projects.
What license is controller-runtime distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
