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[stable/prometheus-blackbox-exporter] Allow scraping multiple targets (#19620)
* [stable/prometheus-blackbox-exporter] Allow scraping multiple targets Signed-off-by: Rostyslav Sotnychenko <me@sota.sh> * Update values.yaml with example configuration Signed-off-by: Rostyslav Sotnychenko <me@sota.sh>
This commit is contained in:
Rostyslav Sotnychenko
committed by
Kubernetes Prow Robot
Kubernetes Prow Robot
parent
a9f58eb7ee
commit
5d4da69d0b
@@ -1,7 +1,7 @@
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apiVersion: v1
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description: Prometheus Blackbox Exporter
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name: prometheus-blackbox-exporter
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version: 2.0.0
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version: 3.0.0
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appVersion: 0.15.1
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home: https://github.com/prometheus/blackbox_exporter
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sources:
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@@ -15,3 +15,5 @@ maintainers:
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email: cedric@desaintmartin.fr
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- name: gianrubio
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email: gianrubio@gmail.com
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- name: rsotnychenko
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email: me@sota.sh
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@@ -41,44 +41,48 @@ The command removes all the Kubernetes components associated with the chart and
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The following table lists the configurable parameters of the Blackbox-Exporter chart and their default values.
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| Parameter | Description | Default |
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| -------------------------------------- | ------------------------------------------------- | ----------------------------- |
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| `config` | Prometheus blackbox configuration | {} |
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| `secretConfig` | Whether to treat blackbox configuration as secret | `false` |
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| `extraArgs` | Optional flags for blackbox | `[]` |
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| `extraConfigmapMounts` | Additional configmap mounts | `[]` |
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| `extraSecretMounts` | Additional secret mounts | `[]` |
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| `image.repository` | container image repository | `prom/blackbox-exporter` |
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| `image.tag` | container image tag | `v0.15.1` |
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| `image.pullPolicy` | container image pull policy | `IfNotPresent` |
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| `image.pullSecrets` | container image pull secrets | `[]` |
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| `ingress.annotations` | Ingress annotations | None |
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| `ingress.enabled` | Enables Ingress | `false` |
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| `ingress.hosts` | Ingress accepted hostnames | None |
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| `ingress.tls` | Ingress TLS configuration | None |
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| `nodeSelector` | node labels for pod assignment | `{}` |
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| `runAsUser` | User to run blackbox-exporter container as | `1000` |
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| `readOnlyRootFilesystem` | Set blackbox-exporter file-system to read-only | `true` |
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| `runAsNonRoot` | Run blackbox-exporter as non-root | `true` |
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| `tolerations` | node tolerations for pod assignment | `[]` |
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| `affinity` | node affinity for pod assignment | `{}` |
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| `podAnnotations` | annotations to add to each pod | `{}` |
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| `podDisruptionBudget` | pod disruption budget | `{}` |
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| `priorityClassName` | priority class name | None |
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| `resources` | pod resource requests & limits | `{}` |
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| `restartPolicy` | container restart policy | `Always` |
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| `service.annotations` | annotations for the service | `{}` |
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| `service.labels` | additional labels for the service | None |
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| `service.type` | type of service to create | `ClusterIP` |
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| `service.port` | port for the blackbox http service | `9115` |
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| `service.externalIPs` | list of external ips | [] |
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| `serviceMonitor.enabled` | If true, a ServiceMonitor CRD is created for a prometheus operator | `false` |
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| `serviceMonitor.labels` | Labels for prometheus operator | `{}` |
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| `serviceMonitor.interval` | Interval for prometheus operator endpoint | `30s` |
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| `serviceMonitor.module` | The module that blackbox will use if serviceMonitor is enabled | `http_2xx` |
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| `serviceMonitor.url` | The URL that blackbox will scrape if serviceMonitor is enabled | `http://example.com/healthz` |
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| `serviceMonitor.urlHumanReadable` | Optional human readable URL that will appear in Prometheus / AlertManager | `nil` |
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| `strategy` | strategy used to replace old Pods with new ones | `{"rollingUpdate":{"maxSurge":1,"maxUnavailable":0},"type":"RollingUpdate"}` |
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| Parameter | Description | Default |
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| ----------------------------------------- | -------------------------------------------------------------------------------- | ---------------------------------------------------------------------------- |
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| `config` | Prometheus blackbox configuration | {} |
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| `secretConfig` | Whether to treat blackbox configuration as secret | `false` |
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| `extraArgs` | Optional flags for blackbox | `[]` |
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| `image.repository` | container image repository | `prom/blackbox-exporter` |
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| `image.tag` | container image tag | `v0.15.1` |
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| `image.pullPolicy` | container image pull policy | `IfNotPresent` |
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| `image.pullSecrets` | container image pull secrets | `[]` |
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| `ingress.annotations` | Ingress annotations | None |
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| `ingress.enabled` | Enables Ingress | `false` |
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| `ingress.hosts` | Ingress accepted hostnames | None |
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| `ingress.tls` | Ingress TLS configuration | None |
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| `nodeSelector` | node labels for pod assignment | `{}` |
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| `runAsUser` | User to run blackbox-exporter container as | `1000` |
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| `readOnlyRootFilesystem` | Set blackbox-exporter file-system to read-only | `true` |
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| `runAsNonRoot` | Run blackbox-exporter as non-root | `true` |
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| `tolerations` | node tolerations for pod assignment | `[]` |
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| `affinity` | node affinity for pod assignment | `{}` |
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| `podAnnotations` | annotations to add to each pod | `{}` |
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| `podDisruptionBudget` | pod disruption budget | `{}` |
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| `priorityClassName` | priority class name | None |
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| `resources` | pod resource requests & limits | `{}` |
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| `restartPolicy` | container restart policy | `Always` |
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| `service.annotations` | annotations for the service | `{}` |
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| `service.labels` | additional labels for the service | None |
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| `service.type` | type of service to create | `ClusterIP` |
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| `service.port` | port for the blackbox http service | `9115` |
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| `service.externalIPs` | list of external ips | [] |
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| `serviceMonitor.enabled` | If true, a ServiceMonitor CRD is created for a prometheus operator | `false` |
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| `serviceMonitor.defaults.labels` | Labels for prometheus operator | `{}` |
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| `serviceMonitor.defaults.interval` | Interval for prometheus operator endpoint | `30s` |
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| `serviceMonitor.defaults.scrapeTimeout` | Scrape timeout for prometheus operator endpoint | `30s` |
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| `serviceMonitor.defaults.module` | The module that blackbox will use if serviceMonitor is enabled | `http_2xx` |
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| `serviceMonitor.targets.[]` | List of targets to scrape | `[]` |
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| `serviceMonitor.targets.[].name` | Human readable name for the job. It will also appear in job labels in Prometheus | `example` |
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| `serviceMonitor.targets.[].url` | The URL that blackbox will scrape if serviceMonitor is enabled | `http://example.com/healthz` |
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| `serviceMonitor.targets.[].labels` | See above in `serviceMonitor.defaults` | `{{ serviceMonitor.defaults.labels }` |
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| `serviceMonitor.targets.[].interval` | See above in `serviceMonitor.defaults` | `{{ serviceMonitor.defaults.interval }}` |
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| `serviceMonitor.targets.[].scrapeTimeout` | See above in `serviceMonitor.defaults` | `{{ serviceMonitor.defaults.scrateTimeout }}` |
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| `serviceMonitor.targets.[].module` | See above in `serviceMonitor.defaults` | `{{ serviceMonitor.defaults.module }}` |
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| `strategy` | strategy used to replace old Pods with new ones | `{"rollingUpdate":{"maxSurge":1,"maxUnavailable":0},"type":"RollingUpdate"}` |
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Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
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@@ -1,45 +1,43 @@
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{{- if .Values.serviceMonitor.enabled }}
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{{- range .Values.serviceMonitor.targets }}
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apiVersion: monitoring.coreos.com/v1
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kind: ServiceMonitor
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metadata:
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name: {{ template "prometheus-blackbox-exporter.fullname" . }}
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name: {{ template "prometheus-blackbox-exporter.fullname" $ }}-{{ .name }}
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labels:
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app.kubernetes.io/name: {{ include "prometheus-blackbox-exporter.name" . }}
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app.kubernetes.io/instance: {{ .Release.Name }}
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app.kubernetes.io/managed-by: {{ .Release.Service }}
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helm.sh/chart: {{ include "prometheus-blackbox-exporter.chart" . }}
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{{- if .Values.serviceMonitor.labels }}
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{{- toYaml .Values.serviceMonitor.labels | nindent 4 }}
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app.kubernetes.io/name: {{ include "prometheus-blackbox-exporter.name" $ }}
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app.kubernetes.io/instance: {{ $.Release.Name }}
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app.kubernetes.io/managed-by: {{ $.Release.Service }}
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helm.sh/chart: {{ include "prometheus-blackbox-exporter.chart" $ }}
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{{- if or $.Values.serviceMonitor.defaults.labels .labels }}
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{{- toYaml (.labels | default $.Values.serviceMonitor.defaults.labels) | nindent 4 }}
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{{- end }}
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spec:
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endpoints:
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- port: http
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scheme: http
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path: "/probe"
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interval: {{ .Values.serviceMonitor.interval }}
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scrapeTimeout: {{ .Values.serviceMonitor.scrapeTimeout }}
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interval: {{ .interval | default $.Values.serviceMonitor.defaults.interval }}
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scrapeTimeout: {{ .scrapeTimeout | default $.Values.serviceMonitor.defaults.scrapeTimeout }}
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params:
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module:
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- {{ .Values.serviceMonitor.module }}
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- {{ .module | default $.Values.serviceMonitor.defaults.module }}
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target:
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- {{ .Values.serviceMonitor.url }}
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- {{ .url }}
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metricRelabelings:
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- sourceLabels: [__address__]
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targetLabel: __param_target
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- sourceLabels: [__param_target]
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targetLabel: instance
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- targetLabel: target
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{{- if .Values.serviceMonitor.urlHumanReadable }}
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replacement: {{ .Values.serviceMonitor.urlHumanReadable }}
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{{- else }}
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replacement: {{ .Values.serviceMonitor.url }}
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{{- end }}
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jobLabel: "{{ .Release.Name }}"
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replacement: {{ .name }}
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jobLabel: "{{ $.Release.Name }}"
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selector:
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matchLabels:
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app.kubernetes.io/name: {{ include "prometheus-blackbox-exporter.name" . }}
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app.kubernetes.io/instance: {{ .Release.Name }}
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app.kubernetes.io/name: {{ include "prometheus-blackbox-exporter.name" $ }}
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app.kubernetes.io/instance: {{ $.Release.Name }}
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namespaceSelector:
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matchNames:
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- {{ .Release.Namespace }}
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- {{ $.Release.Namespace }}
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{{- end }}
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{{- end }}
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@@ -100,11 +100,18 @@ serviceMonitor:
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## https://github.com/coreos/prometheus-operator
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##
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enabled: false
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labels: {}
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interval: 30s
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scrapeTimeout: 30s
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module: http_2xx
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# The URL that blackbox will scrape
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url: http://example.com/healthz
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# Optional human readable URL that will appear in Prometheus / AlertManager
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urlHumanReadable: # www.changemeoriwillfail.com
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# Default values that will be used for all ServiceMonitors created by `targets`
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defaults:
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labels: {}
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interval: 30s
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scrapeTimeout: 30s
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module: http_2xx
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targets:
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# - name: example # Human readable URL that will appear in Prometheus / AlertManager
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# url: http://example.com/healthz # The URL that blackbox will scrape
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# labels: {} # List of labels for ServiceMonitor. Overrides value set in `defaults`
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# interval: 60s # Scraping interval. Overrides value set in `defaults`
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# scrapeTimeout: 60s # Scrape timeout. Overrides value set in `defaults`
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# module: http_2xx # Module used for scraping. Overrides value set in `defaults`
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