How create cluster from AWS CLI in ECS

1. AWS
Elastic Container Service
Ladislav Prskavec
ladislav@apiary.io
Apiary.io

2. Who am I?
• Site Reliability Engineer (SRE) since 2015
• DevOp since 2014
• Developer since 2005 (PHP, Ruby, NodeJS)
• Webmaster 1995-2005
• Lector and Speaker about Developers Tools
(Version Control Systems, CIE, CD)

3. AWS ECS
• Amazon EC2 Container Service (ECS) is a highly
scalable, high performance container
management service that supports Docker
containers and allows you to easily run
applications on a managed cluster of Amazon
EC2 instances. Amazon ECS eliminates the
need for you to install, operate, and scale your
own cluster management infrastructure.
• Pricing: free (pay for EBS, EC2, ELB)

4. Components
• Cluster
• Container instance
• Task definition
• Scheduler
• Service
• Task
• Container

5. Task Definitions
• docker image
• CPU, Memory for container
• Links
• Ports
• Service, Task
• Environment properties
• Data Volumes Support for docker-compose
was announced at DockerCon’15

6. Example
• AWS Command Line Interface
• pip install awscli

7. Create Cluster
$ aws ecs create-cluster
--cluster-name meetup-demo

8. Run Instances
$ aws ecs run-instances
--image-id ami-d0b9acb8
--count 1
--instance-type t2.small
--key-name mykeys
--security-group-ids sg-91d1f1ff
--iam-instance-profile
Name=ecsInstanceRole
--subnet-id subnet-61f1cffd
--user-data file://cluster_setup

9. Cluster setup file
$ cat cluster_setup
#!/bin/bash
yum install -y aws-cli
aws s3 cp s3://my-ecs-config/ecs.config
/etc/ecs/ecs.config
echo ECS_CLUSTER=meetup-demo >> /etc/
ecs/ecs.config

10. List instances
$ aws ecs list-container-instances
--cluster meetup-demo

11. List task definitions
$ aws ecs list-task-definitions
Register new task
$ aws ecs register-task-definition
--cli-input-json file://task.json

12. Create service
$ aws ecs create-service
--service-name our-demo
--task-definition hello_meetup:1
--desired-count 1
--cluster meetup-demo

13. List running services
$ aws ecs list-services
--cluster meetup-demo

14. Describe service
$ aws ecs describe-services
--services our-demo
--cluster meetup-demo

16. Q & A
ladislav@apiary.io