[keycloak-user] Hardware sizing

Hi, I would like to estimate the hardware requirement for a production cluster. I'm planning to deploy the cluster over AWS on two Availability zones (DC). The topology consists in a load balancer, 2 VMs for keycloak cluster, 2 VMs for Infinispan cluster, and 1 AWS RDS instance running MySQL/PostgreSQL. In term of figures I'm expecting to store 300k active users, and a load of around 2 sign-in/s at peak. I made some researches but only found the minimal hardware requirements in the official documentation or unrelated/vague benchmarks. Regards, Nicolas.