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aj-geddes

blue-green-deployment

@aj-geddes/blue-green-deployment
aj-geddes
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22 forks
Updated 3/31/2026
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Implement blue-green deployment strategies for zero-downtime releases with instant rollback capability and traffic switching between environments.

Installation

$npx agent-skills-cli install @aj-geddes/blue-green-deployment
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Details

Pathskills/blue-green-deployment/SKILL.md
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Scoped Name@aj-geddes/blue-green-deployment

Usage

After installing, this skill will be available to your AI coding assistant.

Verify installation:

npx agent-skills-cli list

Skill Instructions


name: blue-green-deployment description: > Implement blue-green deployment strategies for zero-downtime releases with instant rollback capability and traffic switching between environments.

Blue-Green Deployment

Table of Contents

Overview

Deploy applications using blue-green deployment patterns to maintain two identical production environments, enabling instant traffic switching and rapid rollback capabilities.

When to Use

  • Zero-downtime releases
  • High-risk deployments
  • Complex application migrations
  • Database schema changes
  • Rapid rollback requirements
  • A/B testing with environment separation
  • Staged rollout strategies

Quick Start

Minimal working example:

# blue-green-setup.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: blue-green-config
  namespace: production
data:
  switch-traffic.sh: |
    #!/bin/bash
    set -euo pipefail

    CURRENT_ACTIVE="${1:-blue}"
    TARGET="${2:-green}"
    ALB_ARN="arn:aws:elasticloadbalancing:us-east-1:123456789012:loadbalancer/app/myapp-alb/1234567890abcdef"

    echo "Switching traffic from $CURRENT_ACTIVE to $TARGET..."

    # Get target group ARNs
    BLUE_TG=$(aws elbv2 describe-target-groups \
      --load-balancer-arn "$ALB_ARN" \
      --query "TargetGroups[?Tags[?Key=='Name' && Value=='blue']].TargetGroupArn" \
      --output text)

    GREEN_TG=$(aws elbv2 describe-target-groups \
      --load-balancer-arn "$ALB_ARN" \
// ... (see reference guides for full implementation)

Reference Guides

Detailed implementations in the references/ directory:

GuideContents
Blue-Green with Load BalancerBlue-Green with Load Balancer
Blue-Green Rollback ScriptBlue-Green Rollback Script
Monitoring and ValidationMonitoring and Validation

Best Practices

βœ… DO

  • Follow established patterns and conventions
  • Write clean, maintainable code
  • Add appropriate documentation
  • Test thoroughly before deploying

❌ DON'T

  • Skip testing or validation
  • Ignore error handling
  • Hard-code configuration values