Creating and ECS Optimised AMI with Instance Storage

readme.md

Launch an instance storage backed ec2 instance with the default ECS Optimized AMI (c3.* or m3.* family) Map /dev/xvdcz to ephemeral0

SSH into it

# stop docker processes
docker ps -q | xargs docker stop

# stop docker
sudo service docker stop

# stop ecs
sudo stop ecs

# remove ecs config data
sudo rm -f /var/lib/ecs/data/*.json

# shutdown
sudo shutdown -H now

Then create the image

aws ec2 create-image --instance-id INSTANCE_ID \
  --name custom-ephemeral-amzn-ecs-optimized-2017.03.d \
  --description "custom ecs optimized image with ephemeral docker storage" \
  --block-device-mapping "[{\"DeviceName\": \"/dev/xvdcz\",\"VirtualName\":\"ephemeral0\"}]" \
  --region us-east-1

Spin up a managed cluster using that ami. Make sure that the managed cluster is configured to use only those instance families that support ephemeral storage.