MoonHKLee / S-OWL-INFRA

ECS and Spot Fleet Demo

ECS Spot Fleet Demo

This is a sample template that demonstrates how to use ECS with Spot Fleets.

Usage

1. Launch Stack with Spot Fleets
2. Deploy Demo App
3. Cleanup

Launch Stack

To launch the stack without a KeyName:

aws cloudformation create-stack --stack-name ecs-spot-demo --template-body file://ecs-spot-demo.yml --capabilities CAPABILITY_IAM

If you would like to launch the stack with an ssh key. Here are the commands:

# Quick way to grab first keypair on the AWS account.
KEY_NAME=$(aws ec2 describe-key-pairs | jq -r '.KeyPairs[0].KeyName')

# Create a parameters file for the one required parameter in this template
cat <<EOL > parameters.json
[
  {
    "ParameterKey": "KeyName",
    "ParameterValue": "$KEY_NAME"
  }
]
EOL

# Launch the stack
aws cloudformation create-stack --stack-name ecs-spot-demo --template-body file://ecs-spot-demo.yml --parameters file://parameters.json --capabilities CAPABILITY_IAM

Deploy Demo App

First let's create the ECR repo and set some variables we'll need:

ECR_REPO=$(aws ecr create-repository --repository-name demo/sinatra | jq -r '.repository.repositoryUri')
VPC_ID=$(aws ec2 describe-vpcs --filters Name=tag:Name,Values="demo vpc" | jq -r '.Vpcs[].VpcId')

Now we're ready to clone the demo repo and deploy an sample app to ECS with ufo. Note, you'll need Docker installed.

git clone https://github.com/tongueroo/demo-ufo.git demo
cd demo
ufo init --image $ECR_REPO --vpc-id $VPC_ID
ufo current --service demo-web
ufo ship # deploys to ECS on the Spot Fleet cluster

Cleanup

To clean up. First, delete the ECS service.

cd demo # demo project
ufo destroy

Delete the ECR repo:

IMAGES=$(aws ecr list-images --repository-name demo/sinatra | jq -r '.imageIds[].imageDigest')
for i in $IMAGES; do aws ecr batch-delete-image --repository-name demo/sinatra --image-ids imageDigest=$i ; done
aws ecr delete-repository --repository-name demo/sinatra

Delete the infrastructure CloudFormation stack:

aws cloudformation delete-stack --stack-name ecs-spot-demo

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