nthlayer 0.1.0a4

NthLayer - The Missing Layer of Reliability

NthLayer

Generate your complete reliability stack from a single service spec.

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⚡ Quick Start

pipx install nthlayer

nthlayer apply service.yaml

# Output: generated/payment-api/
#   ├── dashboard.json       → Grafana
#   ├── alerts.yaml          → Prometheus
#   ├── slos.yaml            → OpenSLO
#   └── recording-rules.yaml → Prometheus

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📥 What You Put In

1. Service Spec (service.yaml)

# Minimal example (5 lines)
name: payment-api
tier: critical
type: api
dependencies:
  - postgresql

2. Environment Variables (optional)

# 📟 PagerDuty - auto-create team, escalation policy, service
export PAGERDUTY_API_KEY=...

# 📊 Grafana - auto-push dashboards
export NTHLAYER_GRAFANA_URL=...
export NTHLAYER_GRAFANA_API_KEY=...
export NTHLAYER_GRAFANA_ORG_ID=1              # Default: 1

# 🔍 Prometheus - metric discovery for intent resolution
export NTHLAYER_PROMETHEUS_URL=...
export NTHLAYER_METRICS_USER=...              # If auth required
export NTHLAYER_METRICS_PASSWORD=...

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📤 What You Get Out

Output	File	Deploy To
📊 Dashboard	generated/<service>/dashboard.json	Grafana
🚨 Alerts	generated/<service>/alerts.yaml	Prometheus
🎯 SLOs	generated/<service>/slos.yaml	OpenSLO-compatible
⚡ Recording Rules	generated/<service>/recording-rules.yaml	Prometheus
📟 PagerDuty	Created via API	Team, escalation policy, service

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📊 SLO Portfolio

Track reliability across your entire organization:

$ nthlayer portfolio

======================================================================
  NthLayer Reliability Portfolio
======================================================================

Overall Health: 78% (14/18 SLOs meeting target)

By Tier:
  Critical: 5/6 healthy (83%)
  Standard: 6/8 healthy (75%)
  Low: 3/4 healthy (75%)

Top Budget Burners:
  payment-api/availability: 12.5h burned (156%)
  search-api/latency: 8.2h burned (95%)

Insights:
  ! payment-api needs reliability investment
  * user-api exceeds SLO - consider tier promotion

----------------------------------------------------------------------
Services: 12 | SLOs: 18

nthlayer slo list              # List all SLOs across services
nthlayer slo show payment-api  # Show SLO details for a service
nthlayer slo collect payment-api  # Query Prometheus for current budget
nthlayer portfolio             # Org-wide reliability view
nthlayer portfolio --details   # Full breakdown by service

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📝 Full Service Example

name: payment-api
tier: critical              # critical | standard | low
type: api                   # api | worker | stream
team: payments

slos:
  availability: 99.95       # Generates Prometheus alerts
  latency_p99_ms: 200       # Generates histogram queries

dependencies:
  - postgresql              # Adds PostgreSQL panels
  - redis                   # Adds Redis panels
  - kubernetes              # Adds K8s pod metrics

pagerduty:
  enabled: true
  support_model: self       # self | shared | sre | business_hours

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💰 The Value

⏱️ 20 hours → 5 minutes per service

What Gets Automated

Task	Manual Effort	With NthLayer
🎯 Define SLOs & error budgets	6 hours	Generated
🚨 Research & configure alerts	4 hours	400+ battle-tested rules
📊 Build Grafana dashboards	5 hours	12-28 panels auto-generated
📟 PagerDuty escalation setup	2 hours	Tier-based defaults
📋 Write recording rules	3 hours	20+ pre-computed metrics
Total per service	20 hours	5 minutes

_{*Hours based on typical SRE team experience for production-grade setup. Actual times vary by team expertise and existing tooling.}

At Scale

Scale	Manual Hours	With NthLayer	Hours Saved	Value*
🚀 50 services	1,000 hrs	4 hrs	996 hrs	$100K
📈 200 services	4,000 hrs	17 hrs	3,983 hrs	$400K
🏢 1,000 services	20,000 hrs	83 hrs	19,917 hrs	$2M

_{*Value calculated at $100/hr engineering cost. Your mileage may vary.}

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🧠 How It Works

Step	What Happens
🔍 Metric Discovery	Queries Prometheus to find what metrics actually exist
🎯 Intent Resolution	Maps "availability SLO" → best matching PromQL query
🔀 Type Routing	API services get HTTP metrics, workers get job metrics
⚡ Tier Defaults	Critical = 5/15/30min escalation, Low = 60min
🏗️ Technology Templates	PostgreSQL, Redis, Kubernetes patterns built-in

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🛠️ CLI Commands

nthlayer plan service.yaml      # 👀 Preview what will be generated
nthlayer apply service.yaml     # ✨ Generate all artifacts
nthlayer apply --push-grafana   # 📊 Also push dashboard to Grafana
nthlayer apply --lint           # ✅ Validate generated alerts with pint
nthlayer lint alerts.yaml       # 🔍 Lint existing Prometheus rules

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🔮 Coming Soon

Feature	Description	Status
💰 Error Budgets	Track budget consumption, correlate with deploys	✅ Done
📊 SLO Portfolio	Org-wide reliability view across all services	✅ Done
📝 Loki Integration	Generate LogQL alert rules, technology-specific log patterns	🔨 Next
🚦 Deployment Gates	Block ArgoCD deploys when budget exhausted	📋 Planned
🤖 AI Generation	Conversational service.yaml creation via MCP	📋 Planned

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📦 Installation

# Recommended
pipx install nthlayer

# Or with pip
pip install nthlayer

# Verify
nthlayer --version

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🌐 Live Demo

See NthLayer in action with real Grafana dashboards and generated configs:

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📚 Documentation

Full Documentation - Comprehensive guides and reference.

Quick Links
🚀 Quick Start	Get running in 5 minutes
🔧 Setup Wizard	Interactive configuration
📊 SLO Portfolio	Org-wide reliability view
🔌 18 Technologies	PostgreSQL, Redis, Kafka...
📖 CLI Reference	All commands
🤝 Contributing	How to contribute

Build docs locally

pip install -e ".[docs]"
mkdocs serve  # Opens at http://localhost:8000

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🤝 Contributing

git clone https://github.com/rsionnach/nthlayer.git
cd nthlayer
make setup    # Install deps, start services
make test     # Run tests (84 should pass)

See CONTRIBUTING.md for details.

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📄 License

MIT - See LICENSE.txt

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🙏 Acknowledgments

Core Dependencies

• grafana-foundation-sdk - Dashboard generation SDK (Apache 2.0)
• awesome-prometheus-alerts - 580+ battle-tested alert rules (CC BY 4.0)

Architecture Inspiration

• autograf - Dynamic Prometheus metric discovery
• Sloth - SLO specification and burn rate calculations
• OpenSLO - SLO specification standard

Tooling

• Shields.io - Badges
• Slidev - Presentation framework