---
# This manifest declares that we want a Prometheus cluster deployed via the
# Prometheus operator. Note, in order to use the `Prometheus` CRD, we must first
# deploy CoreOS's Prometheus Operator.
apiVersion: monitoring.coreos.com/v1
kind: Prometheus
metadata:
  name: prometheus
spec:
  ...
  # PrometheusRules specify the rules under which Prometheus should fire alerts
  # (which are handeled by AlertManager). We attach `PrometheusRules` to our
  # `Prometheus` instance via the `ruleSelector`.
  ruleSelector:
    matchLabels:
      role: alert-rules
  # Configure our Prometheus instance to send alerts to the `alertmanager`
  # service.
  alerting:
    alertmanagers:
    # @TODO(mattjmcnaughton) We'll want to update/template this namespace once
    # we being making more advanced uses of namespaces.
    - namespace: default
      name: alertmanager
      port: web
  ...