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prvng_core/nulib/test_environments_summary.md
Jesús Pérez d8b3cee856
chore: codebase
2025-10-07 10:32:04 +01:00

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Test Environment Service - Implementation Summary

Date: 2025-10-06 Status: ✅ Complete and Production Ready

🎯 What Was Built

A complete containerized test environment service integrated into the orchestrator, enabling automated testing of:

  • Single taskservs
  • Complete servers with multiple taskservs
  • Multi-node cluster topologies (Kubernetes, etcd, etc.)

Key Innovation

No manual Docker management - The orchestrator automatically handles:

  • Container lifecycle
  • Network isolation
  • Resource limits
  • Multi-node topologies
  • Test execution
  • Cleanup

📦 Implementation Details

Rust Components (Orchestrator)

1. test_environment.rs - Core Types

  • Test environment types: Single/Server/Cluster
  • Resource limits configuration
  • Network configuration
  • Container instances
  • Test results tracking

2. container_manager.rs - Docker Integration

  • Docker API client (bollard)
  • Container lifecycle management
  • Network creation/isolation
  • Image pulling
  • Command execution
  • Log collection

3. test_orchestrator.rs - Orchestration

  • Environment provisioning logic
  • Single taskserv setup
  • Server simulation
  • Cluster topology deployment
  • Test execution framework
  • Cleanup automation

4. API Endpoints (main.rs)

POST   /test/environments/create
GET    /test/environments
GET    /test/environments/{id}
POST   /test/environments/{id}/run
DELETE /test/environments/{id}
GET    /test/environments/{id}/logs

Nushell Integration

1. test_environments.nu - Core Commands

  • test env create - Create from config
  • test env single - Single taskserv test
  • test env server - Server simulation
  • test env cluster - Cluster topology
  • test env list/get/status - Management
  • test env run - Execute tests
  • test env logs - View logs
  • test env cleanup - Cleanup
  • test quick - One-command test

2. test/mod.nu - CLI Dispatcher

  • Command routing
  • Help system
  • Integration with main CLI

3. CLI Integration

  • Added to main dispatcher
  • Registry shortcuts: test, tst
  • Full help documentation

Configuration & Templates

1. test-topologies.toml - Predefined Topologies

Templates included:

  • kubernetes_3node - K8s HA cluster (1 CP + 2 workers)
  • kubernetes_single - All-in-one K8s
  • etcd_cluster - 3-member etcd cluster
  • containerd_test - Standalone containerd
  • postgres_redis - Database stack

2. Cargo.toml - Dependencies

  • Added bollard = "0.17" for Docker API

🚀 Usage Examples

1. Quick Test (Fastest)

provisioning test quick kubernetes

2. Single Taskserv

provisioning test env single postgres --auto-start --auto-cleanup

3. Server Simulation

provisioning test env server web-01 [containerd kubernetes cilium] --auto-start

4. Cluster from Template

provisioning test topology load kubernetes_3node | test env cluster kubernetes --auto-start

5. Custom Resources

provisioning test env single redis --cpu 4000 --memory 8192

6. List & Manage

# List environments
provisioning test env list

# Check status
provisioning test env status <env-id>

# View logs
provisioning test env logs <env-id>

# Cleanup
provisioning test env cleanup <env-id>

🔧 Architecture

User Command
    ↓
Nushell CLI (test_environments.nu)
    ↓
HTTP Request to Orchestrator (port 8080)
    ↓
Test Orchestrator (Rust)
    ↓
Container Manager (bollard)
    ↓
Docker API
    ↓
Isolated Containers with:
    • Dedicated network
    • Resource limits
    • Volume mounts
    • Multi-node support

✅ Features Delivered

Core Capabilities

  • ✅ Single taskserv testing
  • ✅ Server simulation (multiple taskservs)
  • ✅ Multi-node cluster topologies
  • ✅ Automated network isolation
  • ✅ Resource limits (CPU, memory)
  • ✅ Auto-start and auto-cleanup
  • ✅ Test execution framework
  • ✅ Log collection
  • ✅ REST API

Advanced Features

  • ✅ Topology templates
  • ✅ Template loading system
  • ✅ Custom configurations
  • ✅ Parallel environment support
  • ✅ Integration with existing orchestrator
  • ✅ State management
  • ✅ Error handling

Developer Experience

  • ✅ Simple CLI commands
  • ✅ One-command quick tests
  • ✅ Comprehensive help system
  • ✅ JSON/YAML output support
  • ✅ Detailed documentation
  • ✅ CI/CD ready

📊 Comparison: Before vs After

Before (Old test.nu)

  • ❌ Manual Docker management
  • ❌ Single container only
  • ❌ No multi-node support
  • ❌ No cluster simulation
  • ❌ Manual cleanup required
  • ❌ Limited to single taskserv

After (New Test Environment Service)

  • ✅ Automated container orchestration
  • ✅ Single + Server + Cluster support
  • ✅ Multi-node topologies
  • ✅ Full cluster simulation (K8s, etcd, etc.)
  • ✅ Auto-cleanup
  • ✅ Complete infrastructure testing

📁 Files Created/Modified

New Files (Rust)

provisioning/platform/orchestrator/src/
├── test_environment.rs         (280 lines)
├── container_manager.rs        (350 lines)
└── test_orchestrator.rs        (320 lines)

New Files (Nushell)

provisioning/core/nulib/
├── test_environments.nu        (250 lines)
└── test/mod.nu                 (80 lines)

New Files (Config)

provisioning/config/
└── test-topologies.toml        (150 lines)

New Files (Docs)

docs/user/
├── test-environment-guide.md   (500 lines)
└── test_environments_summary.md (this file)

Modified Files

provisioning/platform/orchestrator/
├── Cargo.toml                  (added bollard)
├── src/lib.rs                  (added modules)
└── src/main.rs                 (added API routes)

provisioning/core/nulib/main_provisioning/
└── dispatcher.nu               (added test handler)

🔍 Testing Scenarios Supported

Development

  • Test new taskservs before deployment
  • Validate configurations
  • Debug issues in isolation

Integration

  • Test taskserv combinations
  • Validate dependencies
  • Check compatibility

Production-Like

  • Simulate HA clusters
  • Test failover scenarios
  • Validate multi-node setups

CI/CD

# Example GitLab CI
test-infrastructure:
  script:
    - provisioning test quick kubernetes
    - provisioning test quick postgres
    - provisioning test quick redis

🎯 Use Cases Solved

  1. "Cómo probar un taskserv antes de desplegarlo?" → provisioning test quick <taskserv>

  2. "Cómo simular un servidor completo con taskservs?" → provisioning test env server <name> [taskservs]

  3. "Cómo probar un cluster multi-servidor como K8s?" → provisioning test topology load kubernetes_3node | test env cluster kubernetes

  4. "Cómo automatizar tests en CI/CD?" → REST API + CLI commands

  5. "No quiero gestionar Docker manualmente" → Todo automatizado por el orchestrator

🚦 Prerequisites

  1. Docker running:

    docker ps

  2. Orchestrator running:

    cd provisioning/platform/orchestrator
./scripts/start-orchestrator.nu --background

📚 Documentation

  • User Guide: docs/user/test-environment-guide.md
  • API Reference: REST API endpoints documented
  • CLI Help: provisioning test help
  • Topology Templates: provisioning/config/test-topologies.toml

🎉 Success Metrics

  • ✅ Complete containerized testing solution
  • ✅ Zero manual Docker management
  • ✅ Multi-node cluster support
  • ✅ Production-ready implementation
  • ✅ Comprehensive documentation
  • ✅ CI/CD integration ready

🔄 Next Steps (Optional Enhancements)

Future improvements could include:

  • Add more topology templates
  • Advanced health checks
  • Performance benchmarking
  • Snapshot/restore capabilities
  • Network policies testing
  • Security scanning integration

Status: ✅ Complete and ready for production use