v1.0.0 to v1.0.0

---

name: blue-green-deployment-for-live-strategy-updates

description: Institutional quant standards for zero-downtime, state-synchronized blue-green

deployments for live trading systems.

domain: algorithmic-trading

subdomain: general

tags:

- trading

- algo

- skill

brokers_frameworks:

- Python

- Dataclasses

author: algo-trading-skills-contributors

license: Apache-2.0

---

# Blue-Green Deployment for Live Strategy Updates

## Overview

This skill provides robust, institutional-grade standards and implementation patterns for deploying quantitative trading strategies via blue-green deployment. This approach guarantees zero-downtime cutovers, continuous market data ingestion, and rapid, state-aware rollbacks.

## Objectives

- **Zero Market Disruption:** Ensure continuous trading presence and uninterrupted market data processing.

- **Risk Mitigation:** Run extensive risk and health checks on new strategy instances (Green) before transferring live order routing.

- **Atomic Cutovers:** Transfer live portfolio state and order routing instantaneously to the new version.

- **Immediate Rollback:** Retain the prior version (Blue) in a standby/draining state to allow sub-second rollback if anomalies are detected.

## Structure

- `scripts/blue_green_deployer.py`: The robust implementation with state syncing and thread safety.

- `scripts/test_blue_green_deployer.py`: Thorough unit tests validating cutover and rollback paths.

- `references/workflows.md`: Detailed CI/CD to live trading deployment pipelines.

- `references/standards.md`: Quant-specific engineering requirements for zero-gap state transitions.

- `assets/checklist.md`: The critical path checklist for trading operations teams.

## Usage

Consult the `references` for architectural standards, and utilize `scripts/blue_green_deployer.py` to manage active vs inactive slots in your quantitative execution engine.

## When to Use

Documentation for When to Use.

## Prerequisites

Documentation for Prerequisites.

## Workflow

Documentation for Workflow.

## Common Pitfalls

Documentation for Common Pitfalls.

## Verification

Documentation for Verification.

## Related Skills

Documentation for Related Skills.