Chart Inspector

Chart Inspector is a service that provides endpoints for inspecting Helm charts. It allows users to retrieve resources from Helm charts and perform various operations on them.

Table of Contents

• Overview
• Architecture
• API

Overview

Chart Inspector is a Krateo tool that enables the composition-dynamic-controller to generate its own RBAC policy. It returns a list of resources involved in a chart installation, considering the current cluster state using helm template --server, which evaluates lookups dynamically.

The /resources endpoint wraps the http.RoundTripper of the Helm client with a tracer that intercepts requests made to the Kubernetes API server. It then returns a list of resources involved in the chart installation.

Architecture

API

API Endpoints

Retrieve Helm Chart Resources

• Endpoint: /resources
• Method: GET
• Query Parameters:
  • compositionUID (string): The unique identifier of the composition.
  • compositionNamespace (string): The namespace where the composition is located.
  • compositionDefinitionUID (string): The unique identifier of the composition definition.
  • compositionDefinitionNamespace (string): The namespace where the composition definition is located.
• Response: A JSON object containing the resources involved in the Helm chart template.

Example Request

curl "http://localhost:8081/resources?compositionUID=example-uid&compositionNamespace=default&compositionDefinitionUID=example-def-uid&compositionDefinitionNamespace=default"

Swagger Documentation

Chart Inspector provides Swagger documentation for its API. You can access it at:

http://localhost:8081/swagger/