compose/ecs/demo

Compose sample application

Python/Flask application

+--------------------+              +------------------+
|                    |              |                  |
|    Python Flask    |  timestamps  |      Redis       |
|    Application     |------------->|                  |
|                    |              |                  |
+--------------------+              +------------------+

Things you'll need to do.

There are a number of places you'll need to fill in information. You can find them with:

grep -r '<<<' ./*
./docker-compose.yml:    x-aws-pull_credentials: <<<your arn for your secret you can get with docker ecs secret list>>>
./docker-compose.yml:    image: <<<yourhubname>>>/timestamper
## Walk through

Setup pull credentials for private Docker Hub repositories

You should use a Personal Access Token (PAT) vs your default password. If you have 2FA enabled on your Hub account you will have to create a PAT. You can read more about managing access tokens here: https://docs.docker.com/docker-hub/access-tokens/

  docker ecs secret create -d MyKey -u myhubusername -p myhubpat

Create an AWS Docker context and list available contexts

docker ecs setup
Enter context name: aws
✔ sandbox.devtools.developer
Enter cluster name:
Enter region: us-west-2
✗ Enter credentials:

docker context ls
NAME                DESCRIPTION                               DOCKER ENDPOINT               KUBERNETES ENDPOINT   ORCHESTRATOR
aws
default *           Current DOCKER_HOST based configuration   unix:///var/run/docker.sock                         swarm

Test locally

docker context use default
docker-compose up
open http://localhost:5000

Push images to hub for ecs (ecs cannot see your local image cache)

docker-compose push

Switch to ECS context and launch the app

docker context use aws
docker ecs compose up

Check out the CLI

docker ecs compose ps
docker ecs compose logs

Check out the aws console

• cloud formation
• cloud watch
• security groups
• Load balancers (ELB for this example / ALB if your app only uses 80/443)

Checkout cloudformation

docker ecs compose convert

Stop the meters

docker ecs compose down

Using Amazon ECR instead of Docker Hub

Makefile has an example setup for creating an ECR repository and pushing to it. You'll need to have the AWS CLI installed and your AWS credentials available.

make create-ecr
REGISTRY_ID=<from the create above> make build-image
REGISTRY_ID=<from the create above> make push-image-ecr

If you want to use this often, you'll likely want to replace PUT_ECR_REGISTRY_ID_HERE with the value from above.