Feature flag

• CI is more than release management
• Deployment is only a step
• Testing
• Safe Coding
• Architecture
• Monoliths are hard to deliver because of all the dependencies
• Break up in smaller pieces (Microservices)
• Development patterns
• dev -> test -> staging -> production

Modern deployment solutions

• Blue-Green Deployments

• Canary Releases

• Release a feature to a limited subset of end users

• Validate ther eis no break

• When you want to gradually roll out a feature to ensure enough capacity

• Dark Launching

• Similar to Canary

• But the user doesn't know he's using a new feature

• A/B testing

• Compare two features and see which one provides a better performance

• Progressive Exposure Deployment

• Windows insiders

Feature toggle/flag

• Separate feature deployment from feature exposure
• aka feature flippers, feature flags, feature switch, conditional feature
• Enables A/B testing, canary releases, dark launching
• Alternative to keeping multiple branches in version control
• Enable changes without redeployment

Traffic manager options

1. Availability
2. Robin
3. Weight
4. Latency