On-Call Scheduler
Build fair, sustainable on-call schedules with automation: rotation generation, coverage balancing, handoff checklists, and fatigue safeguards.
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On-Call Scheduler
Fair, Sustainable On-Call Schedules with Automation
Toolkit for designing and managing fair on-call schedules.
What's Included
Guide Chapters
- Chapter 1: On-Call Design Principles
- Chapter 2: Rotation Algorithms and Fairness
- Chapter 3: Escalation Policies and Override Handling
- Chapter 4: PagerDuty, OpsGenie, and Grafana Integration
- Chapter 5: Wellness, Burnout Prevention, and Improvement
Features
- Rotation algorithms: primary-secondary, follow-the-sun
- Fairness optimization with load balancing
- Escalation policy designer with hierarchical rules
- Override handling: swaps, PTO, emergency coverage
- Integration scripts for PagerDuty, OpsGenie, Grafana
- Shift handoff templates with context transfer
- Wellness monitoring: load, sleep disruption, after-hours
Technical Stack
Python, PagerDuty API, OpsGenie, Slack
Quick Start
1. Start with the interactive reader (index.html) or browse the guide chapters directly
2. Chapter 1 provides a free preview -- explore the full product after purchase
3. Each chapter includes code examples, configuration snippets, and best practices
4. Use the search and theme toggle in the reader to customize your experience
Requirements
- No specialized software required for reading the guides
- Code examples include setup instructions within each chapter
- Python 3.8+ recommended for running example scripts
- A modern web browser for the interactive reader
File Structure
on-call-scheduler/
+-- README.md # This file
+-- LICENSE # MIT License
+-- index.html # Interactive reader (free preview)
+-- free-sample.zip # Free sample with Chapter 1
+-- guide/
+-- 01-*.md through 05-*.md
... continues with setup instructions, usage examples, and more.
📄 Content Sample guide/01-on-call-design-principles.md
Chapter 1: On-Call Design Principles
Duration: 45-60 minutes | Difficulty: Intermediate | Prerequisites: Basic familiarity with Python, PagerDuty API, OpsGenie, Slack
Learning Objectives
By the end of this chapter, you will be able to:
1. Define the core architectural patterns and principles
2. Design a reference architecture aligned to business requirements
3. Identify the appropriate building blocks for each layer
4. Evaluate trade-offs between different design approaches
5. Create an implementation roadmap from architecture to production
6. Apply Python patterns to production scenarios
1. Understanding the Fundamentals
Before diving into implementation, it is essential to establish a solid conceptual foundation. On-Call Design Principles forms a critical pillar of the On-Call Scheduler framework, and getting the fundamentals right determines the success of everything built on top.
1.1 Core Concepts
The core concepts underlying this chapter are rooted in established industry patterns and best practices. Each concept builds on the previous one, creating a coherent framework for reasoning about complex systems.
| Concept | Description | Application |
|---|---|---|
| Foundation Layer | The core primitives and building blocks | Establish base capabilities for all higher-level patterns |
| Integration Layer | Interfaces and connectors between components | Define clear boundaries and contracts between subsystems |
| Orchestration Layer | Coordination and workflow management | Manage multi-step processes with error handling |
| Observability Layer | Monitoring, logging, and tracing | Provide visibility into system behavior and performance |
| Governance Layer | Policies, controls, and compliance | Ensure consistent operation within organizational guardrails |
1.2 Why This Matters
In production environments, getting this wrong has measurable consequences. Teams that implement these patterns correctly experience:
- Reduced incident frequency by 40-60% through proactive detection
- Faster mean-time-to-resolution through structured procedures
- Higher team confidence through documented and tested runbooks
- Lower operational overhead through automation and standardization
2. Implementation Walkthrough
... and much more in the full download.