Overview

The GKE Security Hardening Tool is a specialized security configuration generator designed to help DevOps engineers and security teams harden Google Kubernetes Engine (GKE) clusters according to Center for Internet Security (CIS) Benchmark standards. The tool automates the creation of security-focused configuration files, reducing manual setup time and ensuring compliance with industry-recognized security standards.

This tool is ideal for organizations deploying GKE in regulated environments, security-conscious teams implementing defense-in-depth strategies, and DevOps teams seeking to automate cluster hardening workflows. By leveraging the CIS Benchmarks, the tool ensures that generated configurations align with proven security practices and reduce the attack surface of Kubernetes deployments.

Key capabilities include generating hardened configuration files based on selected security options, retrieving all available hardening parameters, and tracking requests through session and user identifiers for audit and compliance purposes.

Usage

Example Request

Generate a hardened GKE configuration with specific security options:

{
  "hardeningOptions": {
    "networkPolicy": ["enabled", "restrictive"],
    "rbac": ["enabled"],
    "podSecurityPolicy": ["enabled", "restricted"],
    "auditLogging": ["enabled", "verbose"],
    "encryptionAtRest": ["enabled"]
  },
  "sessionId": "sess_abc123def456",
  "userId": 12345,
  "timestamp": "2024-01-15T10:30:00Z"
}

Example Response

{
  "configFiles": [
    {
      "filename": "network-policy.yaml",
      "content": "apiVersion: networking.k8s.io/v1\nkind: NetworkPolicy\nmetadata:\n  name: default-deny\nspec:\n  podSelector: {}\n  policyTypes:\n  - Ingress\n  - Egress"
    },
    {
      "filename": "rbac-config.yaml",
      "content": "apiVersion: rbac.authorization.k8s.io/v1\nkind: ClusterRole\nmetadata:\n  name: minimal-access\nrules:\n- apiGroups: [\"\"]\n  resources: [\"pods\"]\n  verbs: [\"get\", \"list\"]"
    },
    {
      "filename": "pod-security-policy.yaml",
      "content": "apiVersion: policy/v1beta1\nkind: PodSecurityPolicy\nmetadata:\n  name: restricted\nspec:\n  privileged: false\n  allowPrivilegeEscalation: false\n  requiredDropCapabilities:\n  - ALL"
    }
  ],
  "sessionId": "sess_abc123def456",
  "generatedAt": "2024-01-15T10:30:05Z",
  "status": "success"
}

Endpoints

GET /

Description: Health check endpoint for service availability verification.

Parameters: None

Response: Returns JSON object confirming service status.

POST /api/gke/hardening/generate

Description: Generates GKE security hardening configuration files based on provided hardening options.

Parameters:

Response: Returns JSON object containing:

• configFiles: Array of objects with filename and content properties containing generated YAML configurations
• sessionId: Echo of the request session identifier
• generatedAt: Timestamp of configuration generation
• status: "success" or error status

GET /api/gke/hardening/options

Description: Retrieves all available hardening options and their supported values for GKE configuration.

Parameters: None

Response: Returns JSON object mapping hardening feature names to arrays of available configuration options.

GET /health

Description: Health check endpoint for monitoring and liveness probes.

Parameters: None

Response: Returns JSON object confirming service health status.

Pricing

About

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References

• Kong Route: https://api.mkkpro.com/hardening/gke
• API Docs: https://api.mkkpro.com:8147/docs