Deliver docker containers continuously on AWS to ECS

1. Deliver Docker Containers
Continuously on AWS
Philipp Garbe
@pgarbe

2. ● Philipp Garbe
● Lead Developer @AutoScout24
● AWS
● Continuous Delivery
● Docker
About Me

3. What About You?

4. The Big Picture

5. Let’s start

6. Publish image
Create container
image
From Dockerfile to Registry

7. Create the Cluster

8. ECS Cluster: Deployment Options
AWS Console AWS CLI ECS CLI CloudFormation
Easy to start Yes No Yes No
Automation No Yes Yes Yes
Configuration as
Code
No No No Yes
Auto Scaling Yes Yes No Yes

9. The first deployment

10. Service description
● Loadbalancing
● AutoScaling
● Deployment
configuration
Task definition
● Task Role
● Volumes
● Network Mode
Container definition
● Image
● Port mapping
● Volume mapping
● Network options
● Docker options

11. ECS Service: Deployment Options
ECS CLI CloudFormation
Easy to start Yes No
Automation Yes Yes
Configuration as Code Partially Yes
Auto Scaling No Yes
Load Balancer No Yes

12. Load Balancing

13. Classic Load Balancer (ELB)
● Layer 4
● Static Port Mapping
Your Choice
Application Load Balancer (ALB)
● Layer 7
● Supports path-based routing
● Custom health checks
● WebSockets and Http/2 support
● Dynamic Port Mapping

14. Application Load Balancer (ALB)
Source:
https://aws.amazon.com/blogs/compute/microservice-delivery-with-amazon-ecs-and-application-load-balancers/

15. Static Port Mapping (ELB)

16. Dynamic Port Mapping (ALB)

17. AutoScaling

18. ECS Cluster
● Use EC2 AutoScaling Group
● CloudWatch Metrics per Cluster:
○ CpuUtiliziation
○ MemoryUtilization
○ CPUReservation
○ MemoryReservation
AutoScaling
ECS Service
● New Application AutoScaling
● CloudWatch Metrics per Service
○ CPU Utilization
○ Memory Utilization
● Needs IAM Role

19. IAM Security Roles
ecsAutoScalingRole
ecsInstanceRole
ecsServiceRole
ecsTaskRole
● Read CloudWatch Metrics
● Modify App AutoScaling
● ECR: Get Images
● ECS: De/Register
Container Instances
● De/Register Instances with
Load Balancer
● Everything your task
needs to do

20. Volumes

21. Your choice
Elastic File System (EFS)
● Shared access across instances
● Limited to Region
● Scales automatically
Elastic Block Storage (EBS)
● Volume per Container Instance
● Limited to Availability Zone
● No automatic scaling
● Additional tooling needed

23. ?Questions

24. https://autoscout24.github.io/hiring
Philipp Garbe
http://garbe.io
@pgarbe
https://github.com/pgarbe