Trigger Specification
This specification describes the prometheus trigger that scales based on a Prometheus.
triggers:
- type: prometheus
metadata:
# Required
serverAddress: http://<prometheus-host>:9090
metricName: http_requests_total
query: sum(rate(http_requests_total{deployment="my-deployment"}[2m])) # Note: query must return a vector/scalar single element response
threshold: '100'
Parameter list:
serverAddress- Address of Prometheus.metricName- Metric name to use.query- Query to run.threshold- Value to start scaling for.
Authentication Parameters
Not supported yet.
Example
apiVersion: keda.sh/v1alpha1
kind: ScaledObject
metadata:
name: prometheus-scaledobject
namespace: default
spec:
scaleTargetRef:
name: my-deployment
triggers:
- type: prometheus
metadata:
serverAddress: http://<prometheus-host>:9090
metricName: http_requests_total
threshold: '100'
query: sum(rate(http_requests_total{deployment="my-deployment"}[2m]))