K-Rail
A workload policy enforcement tool for Kubernetes.
Overview
K-Rail is an open-source Kubernetes admission controller developed by Cruise Automation. It is designed to be a simple, configuration-driven tool for enforcing policies on workloads. Instead of requiring a complex policy language, K-Rail uses a straightforward YAML configuration to enable or disable specific checks, such as preventing pods from running as root or ensuring images come from a trusted registry.
✨ Key Features
- Simple, YAML-based configuration
- No new policy language to learn
- Focus on common security and best practice policies
- Validating admission controller
- Lightweight and easy to deploy
🎯 Key Differentiators
- Extreme simplicity of configuration
- No policy language to learn
- Focus on a core set of essential policies
Unique Value: Provides a dead-simple, configuration-based way to enforce common Kubernetes security policies.
🎯 Use Cases (3)
✅ Best For
- Enforcing a baseline set of security policies across an organization
💡 Check With Vendor
Verify these considerations match your specific requirements:
- Users needing complex, conditional, or context-aware policies
- Policy mutation or generation
🏆 Alternatives
Far simpler to set up and manage than Kyverno or OPA/Gatekeeper, but at the cost of flexibility and power.
💻 Platforms
🔌 Integrations
💰 Pricing
Free tier: Fully open source and free.
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