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$ kubectl autoscale deployment php-apache --cpu-percent=50 --min=1 --max=40
# We started with 2 replicas, then increased to 4
$ kubectl scale deploy infinite-calls --replicas=2
$ kubectl get hpa --watchNAME REFERENCE TARGETS MINPODS MAXPODS REPLICAS AGE
php-apache Deployment/php-apache 0%/50% 1 20 1 16s
php-apache Deployment/php-apache 191%/50% 1 20 1 47s
php-apache Deployment/php-apache 191%/50% 1 20 4 63s
php-apache Deployment/php-apache 136%/50% 1 20 4 108s
php-apache Deployment/php-apache 136%/50% 1 20 8 2m4s
php-apache Deployment/php-apache 136%/50% 1 20 9 2m19s
php-apache Deployment/php-apache 61%/50% 1 20 9 2m50s
php-apache Deployment/php-apache 63%/50% 1 20 9 3m36s
php-apache Deployment/php-apache 63%/50% 1 20 12 3m51s
php-apache Deployment/php-apache 44%/50% 1 20 12 4m38s
php-apache Deployment/php-apache 46%/50% 1 20 12 5m39s
.
.
.
php-apache Deployment/php-apache 47%/50% 1 20 12 66m
php-apache Deployment/php-apache 93%/50% 1 20 12 67m
php-apache Deployment/php-apache 93%/50% 1 20 20 67m
php-apache Deployment/php-apache 56%/50% 1 20 20 68m
php-apache Deployment/php-apache 55%/50% 1 20 20 70m
php-apache Deployment/php-apache 54%/50% 1 20 20 71m
php-apache Deployment/php-apache 55%/50% 1 20 20 72m
php-apache Deployment/php-apache 57%/50% 1 20 20 73m
php-apache Deployment/php-apache 56%/50% 1 20 20 74m
php-apache Deployment/php-apache 55%/50% 1 20 20 75m
php-apache Deployment/php-apache 56%/50% 1 20 20 76m
.
.
.
php-apache Deployment/php-apache 56%/50% 1 20 20 122m
php-apache Deployment/php-apache 57%/50% 1 20 20 122m
php-apache Deployment/php-apache 0%/50% 1 20 20 123m
php-apache Deployment/php-apache 0%/50% 1 20 20 128m
php-apache Deployment/php-apache 0%/50% 1 20 1 128m |
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$ kubectl autoscale deployment php-apache --cpu-percent=50 --min=1 --max=40 # 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 40 1 72m php-apache Deployment/php-apache 249%/50% 1 40 1 73m php-apache Deployment/php-apache 249%/50% 1 40 1 73m php-apache Deployment/php-apache 249%/50% 1 40 4 73m php-apache Deployment/php-apache 249%/50% 1 40 5 73m php-apache Deployment/php-apache 111%/50% 1 40 5 74m php-apache Deployment/php-apache 111%/50% 1 40 9 74m php-apache Deployment/php-apache 58%/50% 1 40 9 75m php-apache Deployment/php-apache 61%/50% 1 40 9 76m php-apache Deployment/php-apache 61%/50% 1 40 11 76m php-apache Deployment/php-apache 50%/50% 1 40 11 77m php-apache Deployment/php-apache 51%/50% 1 40 11 78m # Replicas 2 --> 4 php-apache Deployment/php-apache 51%/50% 1 40 11 128m php-apache Deployment/php-apache 84%/50% 1 40 11 129m php-apache Deployment/php-apache 84%/50% 1 40 19 129m php-apache Deployment/php-apache 55%/50% 1 40 19 130m php-apache Deployment/php-apache 55%/50% 1 40 21 130m php-apache Deployment/php-apache 50%/50% 1 40 21 131m php-apache Deployment/php-apache 50%/50% 1 40 21 132m |
In the images below, taken from Grafana, the "jump" in the use of the CPU in the stress namespace is evident, caused by the increase in requests to the web application.
