flagger-metrics.yaml

apiVersion: flagger.app/v1beta1
kind: MetricTemplate
metadata:
  name: error-rate
  namespace: istio-system
spec:
  provider:
    type: prometheus
    address: http://flagger-prometheus.istio-system:9090
  query: |
    100 - sum(
        rate(
            istio_requests_total{
                reporter="destination",
                destination_workload_namespace="{{ namespace }}",
                destination_workload=~"{{ target }}",
                response_code!~"5.*"
            }[{{ interval }}]
        )
    )
    /
    sum(
        rate(
            istio_requests_total{
                reporter="destination",
                destination_workload_namespace="{{ namespace }}",
                destination_workload=~"{{ target }}"
            }[{{ interval }}]
        )
    )
    * 100
---
apiVersion: flagger.app/v1beta1
kind: MetricTemplate
metadata:
  name: latency
  namespace: istio-system
spec:
  provider:
    type: prometheus
    address: http://flagger-prometheus.istio-system:9090
  query: |
    histogram_quantile(
        0.99,
        sum(
            rate(
                istio_request_duration_milliseconds_bucket{
                    reporter="destination",
                    destination_workload_namespace="{{ namespace }}",
                    destination_workload=~"{{ target }}"
                }[{{ interval }}]
            )
        ) by (le)
    )