Tetrate Config Analyzer (TCA)¶

The Tetrate Config Analyzer (TCA) is a comprehensive validation tool designed to analyze and validate Istio service mesh configurations within Kubernetes clusters. TCA helps ensure your Istio deployments follow best practices and are free from common configuration errors.

Overview¶

TCA operates by examining either Istio configuration files or live cluster configurations. The tool parses Istio resources, applies a comprehensive set of validation rules, and generates detailed reports with actionable insights.

Analysis Categories¶

TCA provides findings in two categories:

Errors: Critical configuration issues requiring immediate attention
Warnings: Potential problems or deviations from established best practices

Each finding includes contextual information explaining the potential impact and provides specific remediation suggestions.

Installation¶

Quick Installation (Linux & macOS)¶

curl -sL https://charts.dl.tetrate.io/public/raw/files/get-tca.sh | bash

Usage¶

Basic Analysis¶

To analyze configurations within a specific namespace:

./tca analyze -n <namespace>

Analysis Results¶

TCA validates your configurations against a comprehensive set of standard rules and best practices. Common issues detected include:

Configuration Conflicts:

Multiple DestinationRule Objects for Same Host-Subset Combination - Prevents conflicting routing rules
Multiple Configuration Objects Within Same Namespace - Identifies potential conflicts and unexpected behavior

Security Validation:

Invalid or Expired Root CA Certificate - Ensures mTLS and secure connections function properly
Missing Service Account for Principal - Validates authentication configuration

Additional Resources¶

Complete Analysis Rules: TCA Analysis Rules
Detailed Documentation: Tetrate Config Analyzer

Benefits¶

Proactive Issue Detection: Identify configuration problems before they impact production
Best Practice Validation: Ensure configurations follow Istio best practices
Detailed Remediation: Get specific guidance on how to fix identified issues
Comprehensive Coverage: Validate multiple aspects of your Istio configuration