[prometheus-ipmi-exporter] Add ScrapeConfig (#6266)

Signed-off-by: Anes Belfodil <[email protected]>

Author: abelfodil

charts/prometheus-ipmi-exporter/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: prometheus-ipmi-exporter
 description: This is an IPMI exporter for Prometheus.
 type: application
-version: 0.6.3
+version: 0.7.0
 # renovate: github=prometheus-community/ipmi_exporter
 appVersion: "v1.10.1"
 keywords:

charts/prometheus-ipmi-exporter/README.md

@@ -52,3 +52,36 @@ See [Customizing the Chart Before Installing](https://helm.sh/docs/intro/using_h
 ```console
 helm show values oci://ghcr.io/prometheus-community/charts/prometheus-ipmi-exporter
 ```
+
+### ScrapeConfig vs ServiceMonitor
+
+This chart supports both ServiceMonitor (v1) and ScrapeConfig (v1alpha1) from prometheus-operator.
+
+**ScrapeConfig** is recommended for:
+
+- Scraping IPMI targets in remote mode (exporter as a proxy)
+- Using file-based service discovery
+- More flexibility with relabeling
+
+**Example - Remote IPMI scraping:**
+
+```yaml
+scrapeConfig:
+  enabled: true
+  mode: remote  # Uses /ipmi endpoint with target relabeling
+  staticConfigs:
+    - targets:
+        - 192.168.1.10
+        - 192.168.1.11
+```
+
+**Example - Local exporter metrics:**
+
+```yaml
+scrapeConfig:
+  enabled: true
+  mode: local  # Uses /metrics endpoint directly
+  staticConfigs:
+    - targets:
+        - ipmi-exporter:9290
+```

charts/prometheus-ipmi-exporter/templates/scrapeconfig.yaml

@@ -0,0 +1,72 @@
+{{- if .Values.scrapeConfig }}
+{{- if and ( .Capabilities.APIVersions.Has "monitoring.coreos.com/v1alpha1" ) ( .Values.scrapeConfig.enabled ) }}
+{{- $hasStatic := .Values.scrapeConfig.staticConfigs }}
+{{- $hasFile := .Values.scrapeConfig.fileSDConfigs }}
+{{- $isRemote := eq .Values.scrapeConfig.mode "remote" }}
+{{- if not (or $hasStatic $hasFile) }}
+{{- fail "scrapeConfig requires either staticConfigs or fileSDConfigs to be defined" }}
+{{- end }}
+{{- if and $hasStatic $hasFile }}
+{{- fail "scrapeConfig cannot have both staticConfigs and fileSDConfigs defined" }}
+{{- end }}
+apiVersion: monitoring.coreos.com/v1alpha1
+kind: ScrapeConfig
+metadata:
+{{- if .Values.scrapeConfig.labels }}
+  labels:
+{{- toYaml .Values.scrapeConfig.labels | nindent 4 }}
+{{- end }}
+  name: {{ template "prometheus-ipmi-exporter.fullname" . }}
+{{- if .Values.scrapeConfig.namespace }}
+  namespace: {{ .Values.scrapeConfig.namespace }}
+{{- end }}
+spec:
+  jobName: {{ .Values.scrapeConfig.jobName | default "ipmi-exporter" }}
+{{- if .Values.scrapeConfig.modules }}
+  params:
+    module:
+{{- toYaml .Values.scrapeConfig.modules | nindent 6 }}
+{{- else if $isRemote }}
+  params:
+    module:
+      - default
+{{- end }}
+  scrapeInterval: {{ .Values.scrapeConfig.scrapeInterval | default "1m" }}
+  scrapeTimeout: {{ .Values.scrapeConfig.scrapeTimeout | default "30s" }}
+{{- if .Values.scrapeConfig.metricsPath }}
+  metricsPath: {{ .Values.scrapeConfig.metricsPath }}
+{{- else if $isRemote }}
+  metricsPath: /ipmi
+{{- else }}
+  metricsPath: /metrics
+{{- end }}
+  scheme: {{ .Values.scrapeConfig.scheme | default "HTTP" }}
+{{- if .Values.scrapeConfig.fileSDConfigs }}
+  fileSDConfigs:
+{{- toYaml .Values.scrapeConfig.fileSDConfigs | nindent 4 }}
+{{- end }}
+{{- if .Values.scrapeConfig.staticConfigs }}
+  staticConfigs:
+{{- toYaml .Values.scrapeConfig.staticConfigs | nindent 4 }}
+{{- end }}
+{{- if .Values.scrapeConfig.relabelings }}
+  relabelings:
+{{- toYaml .Values.scrapeConfig.relabelings | nindent 4 }}
+{{- else if $isRemote }}
+  relabelings:
+    - sourceLabels: [__address__]
+      targetLabel: __param_target
+      action: replace
+    - sourceLabels: [__param_target]
+      targetLabel: instance
+      action: replace
+    - targetLabel: __address__
+      replacement: {{ include "prometheus-ipmi-exporter.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local:{{ .Values.service.port }}
+      action: replace
+{{- end }}
+{{- if .Values.scrapeConfig.metricRelabelings }}
+  metricRelabelings:
+{{- toYaml .Values.scrapeConfig.metricRelabelings | nindent 4 }}
+{{- end }}
+{{- end }}
+{{- end }}

charts/prometheus-ipmi-exporter/values.yaml

@@ -61,6 +61,44 @@ serviceMonitor:
   # targetLabels: []
   # metricRelabelings: []
 
+scrapeConfig:
+  # When set true then use a ScrapeConfig to configure scraping
+  enabled: false
+  # Set the namespace the ScrapeConfig should be deployed
+  # namespace: monitoring
+  # Set labels for the ScrapeConfig
+  # labels:
+  # Scraping mode: "local" for direct exporter metrics, "remote" for IPMI target scraping
+  mode: remote
+  # Job name for the scrape config
+  # jobName: ipmi-exporter
+  # Modules list
+  # modules:
+  #   - default
+  #   - dcmi
+  # Set how frequently Prometheus should scrape
+  # scrapeInterval: 1m
+  # Set timeout for scrape
+  # scrapeTimeout: 30s
+  # Metrics path (defaults: /metrics for local mode, /ipmi for remote mode)
+  # metricsPath: /ipmi
+  # Scheme (HTTP or HTTPS)
+  # scheme: HTTP
+  # File service discovery configs
+  # fileSDConfigs:
+  #   - files:
+  #       - /etc/prometheus/secrets/ipmi-exporter/targets.yml
+  #     refreshInterval: 5m
+  # Static configs
+  # staticConfigs:
+  #   - targets:
+  #       - 192.168.1.10
+  #       - 192.168.1.11
+  # Relabelings
+  # relabelings: []
+  # Metric relabelings
+  # metricRelabelings: []
+
   # Configuration file for ipmi_exporter
 
 configSecret: