pulumi-awsx
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Limit default security group in ingress for ECS cluster
The default ECS cluster security group allows ingress to all ports from all IP addresses. This should be restricted to the appropriate load balancers and ports as set by the deployed applications - per the TODO in the code linked below.
https://github.com/pulumi/pulumi-awsx/blob/3c2cd20b945d9a5fa8cf5f76e399ff16961248d1/nodejs/awsx/ecs/cluster.ts#L139-L144