Watch how the HPA reacts

$ kubectl get hpa -w
$ kubectl get hpa -w
NAME                     REFERENCE                       TARGETS       MINPODS   MAXPODS   REPLICAS   AGE
sample-metrics-app-hpa   Deployment/sample-metrics-app   433m / 500m   2         30        2          4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   433m / 500m   2         30        2         4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   433m / 500m   2         30        2         4d
# Load Starts to grow here
sample-metrics-app-hpa   Deployment/sample-metrics-app   443m / 500m   2         30        2         4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   478m / 500m   2         30        2         4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   594m / 500m   2         30        2         4d

# Scale Out Event
sample-metrics-app-hpa   Deployment/sample-metrics-app   710m / 500m   2         30        5         4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   822m / 500m   2         30        5         4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   912m / 500m   2         30        5         4d

# Impact -> Load goes down but not enough
sample-metrics-app-hpa   Deployment/sample-metrics-app   795m / 500m   2         30        5         4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   890m / 500m   2         30        5         4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   984m / 500m   2         30        5         4d

# Second Scale Out
sample-metrics-app-hpa   Deployment/sample-metrics-app   1128m / 500m   2         30        10        4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   1127m / 500m   2         30        10        4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   806m / 500m   2         30        10        4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   786m / 500m   2         30        10        4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   749m / 500m   2         30        10        4d

# Third Scale Out
sample-metrics-app-hpa   Deployment/sample-metrics-app   803m / 500m   2         30        15        4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   847m / 500m   2         30        15        4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   847m / 500m   2         30        15        4d
...
sample-metrics-app-hpa   Deployment/sample-metrics-app   751m / 500m   2         30        22        4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   777m / 500m   2         30        22        4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   808m / 500m   2         30        22        4d

# Now we stop the load generator
...
# Average load goes down
sample-metrics-app-hpa   Deployment/sample-metrics-app   545m / 500m   2         30        26         4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   543m / 500m   2         30        26        4d
...
sample-metrics-app-hpa   Deployment/sample-metrics-app   504m / 500m   2         30        26        4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   497m / 500m   2         30        26        4d
...

# Scale Down event
sample-metrics-app-hpa   Deployment/sample-metrics-app   446m / 500m   2         30        24        4d

# Second Scale Down
sample-metrics-app-hpa   Deployment/sample-metrics-app   433m / 500m   2         30        21        4d
...
sample-metrics-app-hpa   Deployment/sample-metrics-app   433m / 500m   2         30        13        4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   433m / 500m   2         30        12        4d
sample-metrics-app-hpa   Deployment/sample-metrics-app   433m / 500m   2         30        11        4d
...

# Back to Normal
sample-metrics-app-hpa   Deployment/sample-metrics-app   433m / 500m   2         30        2         4d