[stable/traefik] add servicemonitor (#13728)

* feat: imporvements to pachyderm chart (#13054)

* feat: imporvements to pachyderm chart

- De-hardcode suite label to allow deployment in a different namespace
than `pachyderm`
- De-hardcode service account name to allow deployment in a different
namespace than `pachyderm`
- Allow specifying resource limits for `etcd` and `patchd` deployments
- Split `pachd` service in 3 stand alone services to allow exposing
`pachd-grpc-api` through a LoadBalancer service type
- `pachd-grpc-api` port can be customized
- `pachd` deployment now support iam-role annotation for `kube2iam`

Signed-off-by: Maxime Belanger <maxime.b.belanger@gmail.com>

* add variables to support 1.8.x

Signed-off-by: Maxime Belanger <maxime.b.belanger@gmail.com>

* node port fixed to 30650

Signed-off-by: Maxime Belanger <maxime.b.belanger@gmail.com>

* boolean as stringwq

Signed-off-by: Maxime Belanger <maxime.b.belanger@gmail.com>

* fix typo

Signed-off-by: Maxime Belanger <maxime.b.belanger@gmail.com>

* quote the value in the template instead

Signed-off-by: Maxime Belanger <maxime.b.belanger@gmail.com>
Signed-off-by: Philipp Hellmich <phil@hellmi.de>

* some changes based on feedback of dtomcej

Signed-off-by: Philipp Hellmich <phil@hellmi.de>

* commented out servicemonitor as requested in PR

Signed-off-by: Philipp Hellmich <phil@hellmi.de>

* fix

Signed-off-by: Philipp Hellmich <phil@hellmi.de>

stable/traefik/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: traefik
-version: 1.75.1
+version: 1.76.0
 appVersion: 1.7.12
 description: A Traefik based Kubernetes ingress controller with Let's Encrypt support
 keywords:

stable/traefik/README.md

@@ -204,6 +204,7 @@ The following table lists the configurable parameters of the Traefik chart and t
 | `metrics.prometheus.enabled`           | Whether to enable the `/metrics` endpoint for metric collection by Prometheus.                                               | `false`                                           |
 | `metrics.prometheus.restrictAccess`    | Whether to limit access to the metrics port (8080) to the dashboard service. When `false`, it is accessible on the main Traefik service as well. | `false`                       |
 | `metrics.prometheus.buckets`           | A list of response times (in seconds) - for each list element, Traefik will report all response times less than the element. | `[0.1,0.3,1.2,5]`                                 |
+| `metrics.serviceMonitor.enabled`       | Whether to enable servicemonitor for Prometheus.                                               | `false`                                           |
 | `metrics.datadog.enabled`              | Whether to enable pushing metrics to Datadog.                                                                                | `false`                                           |
 | `metrics.datadog.address`              | Datadog host in the format <hostname>:<port>                                                                                 | `localhost:8125`                                  |
 | `metrics.datadog.pushInterval`         | How often to push metrics to Datadog.                                                                                        | `10s`                                             |

stable/traefik/templates/servicemonitor.yaml

@@ -0,0 +1,30 @@
+{{- if ( .Values.metrics.serviceMonitor )  }}
+{{- if and ( .Values.metrics.serviceMonitor.enabled ) ( .Values.metrics.prometheus.enabled ) }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+{{- if .Values.metrics.serviceMonitor.labels }}
+  labels:
+{{ toYaml .Values.metrics.serviceMonitor.labels | indent 4}}
+{{- end }}
+  name: {{ template "traefik.fullname" . }}-prometheus-exporter
+{{- if .Values.metrics.serviceMonitor.namespace }}
+  namespace: {{ .Values.metrics.serviceMonitor.namespace }}
+{{- end }}
+spec:
+  endpoints:
+  - targetPort: metrics
+    path: /metrics
+{{- if .Values.metrics.serviceMonitor.interval }}
+    interval: {{ .Values.metrics.serviceMonitor.interval }}
+{{- end }}
+  jobLabel: {{ template "traefik.fullname" . }}-prometheus-exporter
+  namespaceSelector:
+    matchNames:
+    - {{ .Release.Namespace }}
+  selector:
+    matchLabels:
+      app: {{ template "traefik.name" . }}
+      release: {{ .Release.Name | quote }}
+{{- end }}
+{{- end }}

stable/traefik/values.yaml

@@ -408,6 +408,15 @@ metrics:
     ## it to the dashboard service only
     restrictAccess: false
     # buckets: [0.1,0.3,1.2,5]
+  # serviceMonitor:
+    # When set true and if Prometheus Operator is installed then use a ServiceMonitor to configure scraping
+    # enabled: false
+    # Set the namespace the ServiceMonitor should be deployed
+    # namespace: monitoring
+    # Set how frequently Prometheus should scrape
+    # interval: 30s
+    # Set labels for the ServiceMonitor, use this to define your scrape label for Prometheus Operator
+    # labels:
   datadog:
     enabled: false
     # address: localhost:8125