test-latency.sh

#!/usr/bin/env bash

set -x

REGION=$1
ZONE=$REGION-a

gcloud compute routers create router-$REGION --network=default --region=$REGION

gcloud compute routers nats create nat-$REGION \
    --router=router-$REGION \
    --region $REGION \
    --auto-allocate-nat-external-ips \
    --nat-all-subnet-ip-ranges \
    --enable-logging

gcloud compute instances create latency-$REGION --boot-disk-size 100G --boot-disk-type pd-ssd --machine-type n2-standard-2 --zone $ZONE --network default --no-address --shielded-secure-boot --shielded-vtpm --shielded-integrity-monitoring

while ! gcloud compute ssh latency-$REGION --zone $ZONE --command "echo SSH to $VM_NAME succeeded" --tunnel-through-iap
do
    echo "Trying to SSH into failed. Sleeping for 5 seconds. zzzZZzzZZ"
    sleep  5
done



gcloud compute ssh latency-$REGION --zone $ZONE --command "sudo apt -qq update -y && sudo apt -qq install traceroute -y; sudo traceroute -n -I 8.8.8.8" --tunnel-through-iap
gcloud compute ssh latency-$REGION --zone $ZONE --command "ping -c3 8.8.8.8" --tunnel-through-iap
gcloud compute instances delete latency-$REGION --zone $ZONE --quiet