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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
threshold: '100'
query: sum(rate(http_requests_total{deployment="my-deployment"}[2m])) # Note: query must return a vector/scalar single element response
The serverAddress indicates where Prometheus is running which contains the configured metric defined in metricName or query. If using VictoriaMetrics cluster version, set full URL to Prometheus querying API, e.g. http://<vmselect>:8481/select/0/prometheus
Authentication Parameters
Not supported yet.
Example
apiVersion: keda.k8s.io/v1alpha1
kind: ScaledObject
metadata:
name: prometheus-scaledobject
namespace: default
spec:
scaleTargetRef:
deploymentName: 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]))