How to package legacy monoliths in contaienrs so they behave like new cloud-native apps - without changing code. Covers logging, configuration, dependency checking, healthchecks and monitoring with .NET Windows and Java Linux apps.

1. Five Patterns for App Transformation
WITH CONTAINERS
@EltonStoneman | elton@docker.com

2. • Running legacy apps in Docker
• Making monoliths act cloud-native
• Running hybrid workloads on Docker

7. Logs
Health
Config
Dependencies
Metrics

10. Making monoliths act cloud-native
Without:
• Changing code
• Taking a technology dependency
• Breaking the dev workflow

11. • Explicit log sink
• Log relay utility
• Runs in foreground
Logs
Health
Config
Dependencies
Metrics
#1 – Logging

13. • Default configuration
• Known file path
• Config injected by platform
Logs
Health
Config
Dependencies
Metrics
#2 – Config

15. • Dependency check utility
• Runs once before startup
• Config-aware & robust
Logs
Health
Config
Dependencies
Metrics
#3 – Dependencies

17. • Healthcheck utility
• Runs periodically
• Exercises app logic
Logs
Health
Config
Dependencies
Metrics
#4 – Health

19. • Metrics exporter utility
• Runs in background
• Exposes runtime metrics
Logs
Health
Config
Dependencies
Metrics
#5 – Metrics

22. Monolith* Monolith*Cloud Native Serverless
Swarm Kubernetes
DOCKER ENTERPRISE

23. NEXT STEPS
• Docker Enterprise trial | trial.docker.com
• Java videos | dockr.ly/mta-java
• .NET videos | dockr.ly/mta-dev
• Today’s demos | is.gd/RNdnl1

24. THANK YOU :)
@EltonStoneman | elton@docker.com