Docker with AWS primitives

It has been almost a year and a half since AWS made the EC2 Container Service (ECS) general available. There have been lots of improvements along the way, but the addition of the new Application Load Balancer (ALB or ELBv2) promises to have a big impact on how we can run containers. Having a load balancer that understands container services, could make third party service discovery redundant.

We will set up a container stack that is build using only AWS services (ECS, ECR, ALB, ...), and show how to leverage the Application Load Balancer to register our containers in a cost-effective way.

Transcript

1. Docker with AWS Primitives
2. Ben Bridts - @ikB3N 2
3. Ben Bridts - @ikB3N 3 Join us info@cloudar.be - ben@cloudar.be
4. Ben Bridts - @ikB3N 4
5. Ben Bridts - @ikB3N 5
6. Ben Bridts - @ikB3N 6
7. ECR - Registry • Managed • Secure • HTTPS • Encryption at Rest • Highly Available • Integrates with docker cli • Integrates with ECS Ben Bridts - @ikB3N 7
8. Ben Bridts - @ikB3N 8
9. Ben Bridts - @ikB3N 9
10. ECS - Management • Scheduling & Placement • Open Source Agent • Bring your own OS • Bring your own Scheduler • Integrates with ECR, ELB, Autoscaling, … Ben Bridts - @ikB3N 10
11. Cluster Ben Bridts - @ikB3N 11 #!/bin/bash echo ECS_CLUSTER=demo >> /etc/ecs/ecs.config
12. Task Definition Ben Bridts - @ikB3N 12
13. Service Ben Bridts - @ikB3N 13
14. Ben Bridts - @ikB3N 14
15. ELB – Service Discovery • Load Balancing • Integrates with ECS • Path based or port based routing Ben Bridts - @ikB3N 15
16. Application Load Balancer • Level 7 routing (path based) • Containers as first class objects • More protocols: HTTP/2, Websockets • Health check configuration • More metrics • Delete protection Ben Bridts - @ikB3N 16
17. Target group Ben Bridts - @ikB3N 17
18. Listener Ben Bridts - @ikB3N 18
19. Result Ben Bridts - @ikB3N 19
20. Demo Ben Bridts - @ikB3N 20
21. Extra Build in Build your own Ben Bridts - @ikB3N 21
22. Avoid these traps • Health checks will kill and replace your app if they fail • T2 instances will run out of credits if you keep replacing your app • 1 ALB has 10 listeners with 10 rules • Adding instances does not rebalance your services Ben Bridts - @ikB3N 22
23. Questions? Ben Bridts - @ikB3N 23