Autoscaler

[jeffmccune]

• Setup iperf on endpoints for autoscale testing
• Configure endpoints in the same zone to reduce zone egress network costs.
• Switch endpoints to Debian 10 for iperf2 multi-client support
• Run iperf directly from the startup script, it was misbehaving when run from systemd.
• Run 180 sequential iperf runs, 10 seconds each to create persistent upward pressure on the autoscaler and TCP window sizes.
• Add role label with value of multinic-endpoint, iperf-client, or iperf-server to help build charts in the Monitoring console.
• Set max replicas per zone to 6

Resolves: https://github.com/openinfrastructure/terraform-google-multinic/issues/16

[jeffmccune]

[jeffmccune]

CPU Utilization Autoscaler

6 iperf clients, 128 connections each, 10 second runs, 30 minute runtime.