https://docs.aws.amazon.com/autoscaling/ec2/userguide/as-scaling-target-tracking.html
https://docs.aws.amazon.com/autoscaling/ec2/userguide/as-instance-monitoring.html#enable-as-instance-metrics
https://www.terraform.io/docs/providers/aws/r/appautoscaling_policy.html
https://docs.aws.amazon.com/AmazonECS/latest/developerguide/service-auto-scaling.html
Pardefault les credentials temporaires donnés par un assume role sont valables 1h
C'est un peu juste en dev, pour augmenter cette periode :
1) dans le role en question, autoriser a demander +
2) au moment de faire le assume role en CLI, il faut passer un param pour demander +
For UDP traffic, the load balancer selects a target using a flow hash algorithm based on the protocol, source IP address, source port, destination IP address, and destination port. A UDP flow has the same source and destination, so it is consistently routed to a single target throughout its lifetime. Different UDP flows have different source IP addresses and ports, so they can be routed to different targets.