Kf Apps can be automatically scaled based on CPU usage. You can configure autoscaling limits for your Apps and the target CPU usage for each App instance. Kf automatically scales your Apps up and down in response to demand.
By default, autoscaling is disabled. Follow the steps below to enable autoscaling.
View Apps
You can view the autoscaling status for an App using the kf apps
command. If autoscaling is enabled for an App, Instances
includes the
autoscaling status.
$ kf apps
Name Instances Memory Disk CPU
app1 4 (autoscaled 4 to 5) 256Mi 1Gi 100m
app2 1 256Mi 1Gi 100m
Autoscaling is enabled for app1
with min-instances
set to 4 and
max-instances
set to 5. Autoscaling is disabled for app2
.
Update autoscaling limits
You can update the instance limits using the kf update-autoscaling-limits
command.
kf update-autoscaling-limits app-name min-instances max-instances
Create autoscaling rule
You can create autoscaling rules using the kf create-autoscaling-rule
command.
kf create-autoscaling-rule app-name CPU min-threshold max-threshold
Delete autoscaling rules
You can delete all autoscaling rules with the
kf delete-autoscaling-rule
command. Kf only supports
one autoscaling rule.
kf delete-autoscaling-rules app-name
Enable and disable autoscaling
Autoscaling can be enabled by using enable-autoscaling
and
disabled by using disable-autoscaling
. When it is disabled, the
configurations, including limits and rules, are preserved.
kf enable-autoscaling app-name
kf disable-autoscaling app-name