martysweet / academic-fyp-ddb-load-tester

Fargate deployable DynamoDB load tester

academic-fyp-ddb-load-tester

A small fragment of my University final year project, which involved making a globally replicated DynamoDB table, in a time before DynamoDB Global Tables existed.

This service is a small DynamoDB load tester, which spins up a Fargate container and performs read and write activity on the table.

Issues

• The task definition is specified inline with the CloudFormation Lambda function, this needs updating after each deployment
• Subnet and security groups used in the Lambda Function code should be parameters
• Code is inline, you should probably be using SAM

Building the Docker Image and pushing to ECR

docker build -t fyp-ddb-stress-test .
docker tag fyp-ddb-stress-test AWS_ACCOUNT_ID.dkr.ecr.us-east-1.amazonaws.com/fyp-ddb-stress-test

aws ecr get-login --no-include-email --region us-east-1
docker push AWS_ACCOUNT_ID.dkr.ecr.us-east-1.amazonaws.com/fyp-ddb-stress-test:latest

Updating Cloudformation from CLI

aws cloudformation update-stack --stack-name fargate-test-2 --template-body file://ec2-fargate-deployment.yaml --region us-east-1  --capabilities CAPABILITY_IAM --parameters ParameterKey="TaskSubnet",UsePreviousValue=true ParameterKey="TaskSg",UsePreviousValue=true