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For this type of test we have subjected the cluster to an average workload for a few hours, always making use of the applications seen in these pages. Let's see how it behaved based on the flavors of the VMs.
$ kubectl autoscale deployment php-apache --cpu-percent=50 --min=1 --max=20
# We started with 2 replicas, then increased to 4
$ kubectl scale deploy infinite-calls --replicas=2
$ kubectl get hpa --watch
NAME REFERENCE TARGETS MINPODS MAXPODS REPLICAS AGE
php-apache Deployment/php-apache 0%/50% 1 20 1 89m
php-apache Deployment/php-apache 209%/50% 1 20 1 89m
php-apache Deployment/php-apache 209%/50% 1 20 4 89m
php-apache Deployment/php-apache 209%/50% 1 20 5 89m
php-apache Deployment/php-apache 110%/50% 1 20 5 90m
php-apache Deployment/php-apache 110%/50% 1 20 10 90m
php-apache Deployment/php-apache 110%/50% 1 20 11 90m
php-apache Deployment/php-apache 47%/50% 1 20 11 91m
.
.
.
php-apache Deployment/php-apache 70%/50% 1 40 11 142m # Replicas 2 --> 4
php-apache Deployment/php-apache 70%/50% 1 40 16 142m
php-apache Deployment/php-apache 64%/50% 1 40 16 143m
php-apache Deployment/php-apache 64%/50% 1 40 21 143m
php-apache Deployment/php-apache 54%/50% 1 40 21 144m
php-apache Deployment/php-apache 51%/50% 1 40 21 145m
php-apache Deployment/php-apache 50%/50% 1 40 21 147m
EduranceTest (xLarge)