HyperFleet API

HyperFleet API - Simple REST API for cluster lifecycle management. Provides CRUD operations for clusters and status sub-resources. Pure data layer with PostgreSQL integration - no business logic or event creation. Stateless design enables horizontal scaling.

Architecture

Technology Stack

• Language: Go 1.24+
• API Definition: OpenAPI 3.0
• Code Generation: openapi-generator-cli
• Database: PostgreSQL with GORM ORM
• Container Runtime: Podman
• Testing: Gomega + Resty

Core Features

• OpenAPI 3.0 specification
• Automated Go code generation from OpenAPI
• Cluster and NodePool lifecycle management
• Adapter-based status reporting with Kubernetes-style conditions
• Pagination and search capabilities
• Complete integration test coverage
• Database migrations with GORM
• Embedded OpenAPI specification using //go:embed

Project Structure

hyperfleet-api/
├── cmd/hyperfleet-api/          # Application entry point
├── pkg/
│   ├── api/                     # API models and handlers
│   ├── dao/                     # Data access layer
│   ├── db/                      # Database setup and migrations
│   ├── handlers/                # HTTP request handlers
│   └── services/                # Business logic
├── openapi/                     # API specification source
├── test/                        # Integration tests and factories
├── docs/                        # Detailed documentation
└── Makefile                     # Build automation

Quick Start

Prerequisites

• Go 1.24+, Podman, PostgreSQL 13+, Make

See PREREQUISITES.md for installation instructions.

Installation

# 1. Generate OpenAPI code and mocks
make generate-all

# 2. Install dependencies
go mod download

# 3. Build binary
make binary

# 4. Setup database
make db/setup

# 5. Run migrations
./hyperfleet-api migrate

# 6. Start service (no auth)
make run-no-auth

Note: Generated code is not tracked in git. You must run make generate-all after cloning.

Accessing the API

The service starts on localhost:8000:

• REST API: http://localhost:8000/api/hyperfleet/v1/
• OpenAPI spec: http://localhost:8000/api/hyperfleet/v1/openapi
• Swagger UI: http://localhost:8000/api/hyperfleet/v1/openapi.html
• Health check: http://localhost:8083/healthcheck
• Metrics: http://localhost:8080/metrics

# Test the API
curl http://localhost:8000/api/hyperfleet/v1/clusters | jq

API Resources

Clusters

Kubernetes clusters with provider-specific configurations, labels, and adapter-based status reporting.

Main endpoints:

• GET/POST /api/hyperfleet/v1/clusters
• GET /api/hyperfleet/v1/clusters/{id}
• GET/POST /api/hyperfleet/v1/clusters/{id}/statuses

NodePools

Groups of compute nodes within clusters.

Main endpoints:

• GET /api/hyperfleet/v1/nodepools
• GET/POST /api/hyperfleet/v1/clusters/{cluster_id}/nodepools
• GET /api/hyperfleet/v1/clusters/{cluster_id}/nodepools/{nodepool_id}
• GET/POST /api/hyperfleet/v1/clusters/{cluster_id}/nodepools/{nodepool_id}/statuses

Both resources support pagination, label-based search, and adapter status reporting. See docs/api-resources.md for complete API documentation.

Example Usage

# Create a cluster
curl -X POST http://localhost:8000/api/hyperfleet/v1/clusters \
  -H "Content-Type: application/json" \
  -d '{"kind": "Cluster", "name": "my-cluster", "spec": {...}, "labels": {...}}' | jq

# Search clusters
curl -G http://localhost:8000/api/hyperfleet/v1/clusters \
  --data-urlencode "search=labels.env='production'" | jq

Development

Common Commands

make binary              # Build binary
make run-no-auth         # Run without authentication
make test                # Run unit tests
make test-integration    # Run integration tests
make generate            # Generate OpenAPI models
make generate-mocks      # Generate test mocks
make generate-all        # Generate OpenAPI models and mocks
make db/setup            # Create PostgreSQL container
make image               # Build container image

See docs/development.md for detailed workflows.

Pre-commit Hooks

This project uses pre-commit for code quality checks. See docs/development.md for setup instructions.

Documentation

Core Documentation

• API Resources - API endpoints, data models, and search capabilities
• Development Guide - Local setup, testing, code generation, and workflows
• Database - Schema, migrations, and data model
• Deployment - Container images, Kubernetes deployment, and configuration
• Authentication - Development and production auth

Additional Resources

• PREREQUISITES.md - Prerequisite installation
• docs/continuous-delivery-migration.md - CD migration guide
• docs/dao.md - Data access patterns
• docs/testcontainers.md - Testcontainers usage

License

[License information to be added]