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[stable/prometheus-nats-exporter]: add prometheus-operator servicemonitor support #21088

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Feb 28, 2020
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[stable/prometheus-nats-exporter]: add prometheus-operator servicemonitor support #21088

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2 changes: 1 addition & 1 deletion stable/prometheus-nats-exporter/Chart.yaml
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Expand Up @@ -2,7 +2,7 @@ apiVersion: v1
appVersion: "0.6.0"
description: A Helm chart for prometheus-nats-exporter
name: prometheus-nats-exporter
version: 2.3.0
version: 2.4.0
home: https://github.com/nats-io/prometheus-nats-exporter
sources:
- https://github.com/nats-io/prometheus-nats-exporter
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52 changes: 28 additions & 24 deletions stable/prometheus-nats-exporter/README.md
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Expand Up @@ -36,30 +36,34 @@ The command removes all the Kubernetes components associated with the chart and

The following table lists the configurable parameters of the postgres Exporter chart and their default values.

| Parameter | Description | Default |
| ------------------------------- | --------------------------------------------- | ---------------------------------------------------------- |
| `image` | Image | `synadia/prometheus-nats-exporter` |
| `imageTag` | Image tag | `0.6.0` |
| `imagePullPolicy` | Image pull policy | `IfNotPresent` |
| `service.type` | Service type | `ClusterIP` |
| `service.port` | The service port | `80` |
| `service.targetPort` | The target port of the container | `7777` |
| `resources` | | `{}` |
| `config.nats.service` | NATS monitoring [service name][svc-name] | `nats-nats-monitoring` |
| `config.nats.namespace` | Namespace in which NATS deployed | `default` |
| `config.nats.port` | NATS monitoring service port | `8222` |
| `config.metrics.varz` | NATS varz metrics | `true` |
| `config.metrics.channelz` | NATS channelz metrics | `true` |
| `config.metrics.connz` | NATS connz metrics | `true` |
| `config.metrics.routez` | NATS routez metrics | `true` |
| `config.metrics.serverz` | NATS serverz metrics | `true` |
| `config.metrics.subz` | NATS subz metrics | `true` |
| `tolerations` | Add tolerations | `[]` |
| `nodeSelector` | node labels for pod assignment | `{}` |
| `affinity` | node/pod affinities | `{}` |
| `annotations` | Deployment annotations | `{}` |
| `extraContainers` | Additional sidecar containers | `""` |
| `extraVolumes` | Additional volumes for use in extraContainers | `""` |
| Parameter | Description | Default |
| --------------------------------- | ------------------------------------------------------- | ------------------------------------------------ |
| `image` | Image | `synadia/prometheus-nats-exporter` |
| `imageTag` | Image tag | `0.6.0` |
| `imagePullPolicy` | Image pull policy | `IfNotPresent` |
| `service.type` | Service type | `ClusterIP` |
| `service.port` | The service port | `80` |
| `service.targetPort` | The target port of the container | `7777` |
| `serviceMonitor.enabled` | Set to true if using the Prometheus Operator | `false` |
| `serviceMonitor.interval` | Interval at which metrics should be scraped | `` |
| `serviceMonitor.namespace` | The namespace where the Prometheus Operator is deployed | `` |
| `serviceMonitor.additionalLabels` | Additional labels to add to the ServiceMonitor | `{}` |
| `resources` | | `{}` |
| `config.nats.service` | NATS monitoring [service name][svc-name] | `nats-nats-monitoring` |
| `config.nats.namespace` | Namespace in which NATS deployed | `default` |
| `config.nats.port` | NATS monitoring service port | `8222` |
| `config.metrics.varz` | NATS varz metrics | `true` |
| `config.metrics.channelz` | NATS channelz metrics | `true` |
| `config.metrics.connz` | NATS connz metrics | `true` |
| `config.metrics.routez` | NATS routez metrics | `true` |
| `config.metrics.serverz` | NATS serverz metrics | `true` |
| `config.metrics.subz` | NATS subz metrics | `true` |
| `tolerations` | Add tolerations | `[]` |
| `nodeSelector` | node labels for pod assignment | `{}` |
| `affinity` | node/pod affinities | `{}` |
| `annotations` | Deployment annotations | `{}` |
| `extraContainers` | Additional sidecar containers | `""` |
| `extraVolumes` | Additional volumes for use in extraContainers | `""` |

[svc-name]: https://github.com/helm/charts/blob/master/stable/nats/templates/monitoring-svc.yaml

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35 changes: 35 additions & 0 deletions stable/prometheus-nats-exporter/templates/servicemonitor.yaml
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@@ -0,0 +1,35 @@
{{- if and .Values.serviceMonitor.enabled (.Capabilities.APIVersions.Has "monitoring.coreos.com/v1") }}
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
name: {{ include "prometheus-nats-exporter.fullname" . }}
{{- with .Values.serviceMonitor.namespace }}
namespace: {{ . }}
{{- end }}
labels:
app.kubernetes.io/name: {{ include "prometheus-nats-exporter.name" . }}
app.kubernetes.io/instance: {{ .Release.Name }}
app.kubernetes.io/managed-by: {{ .Release.Service }}
helm.sh/chart: {{ include "prometheus-nats-exporter.chart" . }}
{{- with .Values.serviceMonitor.additionalLabels }}
{{ toYaml . | indent 4 }}
{{- end }}
spec:
endpoints:
- port: http
honorLabels: true
{{- with .Values.serviceMonitor.interval }}
interval: {{ . }}
{{- end }}
{{- with .Values.serviceMonitor.scrapeTimeout }}
scrapeTimeout: {{ . }}
{{- end }}
namespaceSelector:
matchNames:
- {{ .Release.Namespace }}
selector:
matchLabels:
app.kubernetes.io/name: {{ include "prometheus-nats-exporter.name" . }}
app.kubernetes.io/instance: {{ .Release.Name }}
{{- end }}

7 changes: 7 additions & 0 deletions stable/prometheus-nats-exporter/values.yaml
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Expand Up @@ -14,6 +14,13 @@ service:
port: 80
targetPort: 7777

serviceMonitor:
enabled: false
additionalLabels: {}
namespace:
interval:
scrapeTimeout:

resources: {}
# We usually recommend not to specify default resources and to leave this as a conscious
# choice for the user. This also increases chances charts run on environments with little
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