Add influxdb-exporter chart (#1416)

Signed-off-by: Francesco Astegiano <francesco.astegiano@gmail.com>

charts/stable/influxdb-exporter/.helmignore

@@ -0,0 +1,26 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/
+# OWNERS file for Kubernetes
+OWNERS
+# helm-docs templates
+*.gotmpl

charts/stable/influxdb-exporter/Chart.yaml

@@ -0,0 +1,23 @@
+apiVersion: v2
+appVersion: 0.8.1
+description: influxdb-exporter helm package
+name: influxdb-exporter
+version: 1.0.0
+kubeVersion: ">=1.16.0-0"
+keywords:
+  - influxdb-exporter
+home: https://github.com/k8s-at-home/charts/tree/master/charts/incubator/influxdb-exporter
+icon: https://influxdata.github.io/branding/img/downloads/influxdata-logo--symbol--pool.jpg
+sources:
+  - https://github.com/prometheus/influxdb_exporter
+maintainers:
+  - name: Aste88
+    email: admin@aste.tools
+dependencies:
+  - name: common
+    repository: https://library-charts.k8s-at-home.com
+    version: 4.3.0
+annotations:
+  artifacthub.io/changes: |
+    - kind: added
+      description: Initial version

charts/stable/influxdb-exporter/README.md

@@ -0,0 +1,127 @@
+# influxdb-exporter
+
+![Version: 1.0.0](https://img.shields.io/badge/Version-1.0.0-informational?style=flat-square) ![AppVersion: 0.8.1](https://img.shields.io/badge/AppVersion-0.8.1-informational?style=flat-square)
+
+An exporter for metrics in the InfluxDB format used since 0.9.0. It collects metrics in the line protocol via a HTTP API, transforms them and exposes them for consumption by Prometheus.
+
+**This chart is not maintained by the upstream project and any issues with the chart should be raised [here](https://github.com/k8s-at-home/charts/issues/new/choose)**
+
+## Source Code
+
+* <https://github.com/prometheus/influxdb_exporter>
+
+## Requirements
+
+Kubernetes: `>=1.16.0-0`
+
+## Dependencies
+
+| Repository | Name | Version |
+|------------|------|---------|
+| https://library-charts.k8s-at-home.com | common | 4.0.0 |
+
+## TL;DR
+
+```console
+helm repo add k8s-at-home https://k8s-at-home.com/charts/
+helm repo update
+helm install influxdb-exporter k8s-at-home/influxdb-exporter
+```
+
+## Installing the Chart
+
+To install the chart with the release name `influxdb-exporter`
+
+```console
+helm install influxdb-exporter k8s-at-home/influxdb-exporter
+```
+
+## Uninstalling the Chart
+
+To uninstall the `influxdb-exporter` deployment
+
+```console
+helm uninstall influxdb-exporter
+```
+
+The command removes all the Kubernetes components associated with the chart **including persistent volumes** and deletes the release.
+
+## Configuration
+
+Read through the [values.yaml](./values.yaml) file. It has several commented out suggested values.
+Other values may be used from the [values.yaml](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common/values.yaml) from the [common library](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common).
+
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`.
+
+```console
+helm install influxdb-exporter \
+  --set env.TZ="America/New York" \
+    k8s-at-home/influxdb-exporter
+```
+
+Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart.
+
+```console
+helm install influxdb-exporter k8s-at-home/influxdb-exporter -f values.yaml
+```
+
+## Custom configuration
+
+Override the default container `args:` with optons:
+
+    --web.listen-address=":9122"
+                          Address on which to expose metrics and web interface.
+    --web.telemetry-path="/metrics"
+                          Path under which to expose Prometheus metrics.
+    --web.exporter-telemetry-path="/metrics/exporter"
+                          Path under which to expose exporter metrics.
+    --influxdb.sample-expiry=5m
+                          How long a sample is valid for.
+    --udp.bind-address=":9122"
+                          Address on which to listen for udp packets.
+    --timestamps         Export timestamps of points.
+    --log.level=info     Only log messages with the given severity or above. One of: [debug, info, warn, error]
+    --log.format=logfmt  Output format of log messages. One of: [logfmt, json]
+
+(adapt service address/path/port accordingly)
+
+## Values
+
+**Important**: When deploying an application Helm chart you can add more values from our common library chart [here](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common)
+
+| Key | Type | Default | Description |
+|-----|------|---------|-------------|
+| env | object | See below | environment variables. See more environment variables in the [influxdb-exporter documentation](https://influxdb-exporter.org/docs). |
+| env.TZ | string | `"UTC"` | Set the container timezone |
+| image.pullPolicy | string | `"IfNotPresent"` | image pull policy |
+| image.repository | string | `"influxdb-exporter/influxdb-exporter"` | image repository |
+| image.tag | string | `"1.0.0"` | image tag |
+| ingress.main | object | See values.yaml | Enable and configure ingress settings for the chart under this key. |
+| persistence | object | See values.yaml | Configure persistence settings for the chart under this key. |
+| service | object | See values.yaml | Configures service settings for the chart. |
+
+## Changelog
+
+### Version 1.0.0
+
+#### Added
+
+- Initial version
+
+#### Changed
+
+N/A
+
+#### Fixed
+
+N/A
+
+## Support
+
+- See the [Docs](https://docs.k8s-at-home.com/our-helm-charts/getting-started/)
+- Open an [issue](https://github.com/k8s-at-home/charts/issues/new/choose)
+- Ask a [question](https://github.com/k8s-at-home/organization/discussions)
+- Join our [Discord](https://discord.gg/sTMX7Vh) community
+
+----------------------------------------------
+Autogenerated from chart metadata using [helm-docs v1.5.0](https://github.com/norwoodj/helm-docs/releases/v1.5.0)

charts/stable/influxdb-exporter/README.md.gotmpl

@@ -0,0 +1,176 @@
+{{- define "custom.repository.organization" -}}
+k8s-at-home
+{{- end -}}
+
+{{- define "custom.repository.url" -}}
+https://github.com/k8s-at-home/charts
+{{- end -}}
+
+{{- define "custom.helm.url" -}}
+https://k8s-at-home.com/charts/
+{{- end -}}
+
+{{- define "custom.helm.path" -}}
+{{ template "custom.repository.organization" . }}/{{ template "chart.name" . }}
+{{- end -}}
+
+{{- define "custom.notes" -}}
+**This chart is not maintained by the upstream project and any issues with the chart should be raised [here](https://github.com/k8s-at-home/charts/issues/new/choose)**
+{{- end -}}
+
+{{- define "custom.requirements" -}}
+## Requirements
+
+{{ template "chart.kubeVersionLine" . }}
+{{- end -}}
+
+{{- define "custom.dependencies" -}}
+## Dependencies
+
+{{ template "chart.requirementsTable" . }}
+{{- end -}}
+
+{{- define "custom.install.tldr" -}}
+## TL;DR
+
+```console
+helm repo add {{ template "custom.repository.organization" . }} {{ template "custom.helm.url" . }}
+helm repo update
+helm install {{ template "chart.name" . }} {{ template "custom.helm.path" . }}
+```
+{{- end -}}
+
+{{- define "custom.install" -}}
+## Installing the Chart
+
+To install the chart with the release name `{{ template "chart.name" . }}`
+
+```console
+helm install {{ template "chart.name" . }} {{ template "custom.helm.path" . }}
+```
+{{- end -}}
+
+{{- define "custom.uninstall" -}}
+## Uninstalling the Chart
+
+To uninstall the `{{ template "chart.name" . }}` deployment
+
+```console
+helm uninstall {{ template "chart.name" . }}
+```
+
+The command removes all the Kubernetes components associated with the chart **including persistent volumes** and deletes the release.
+{{- end -}}
+
+{{- define "custom.configuration.header" -}}
+## Configuration
+{{- end -}}
+
+{{- define "custom.configuration.readValues" -}}
+Read through the [values.yaml](./values.yaml) file. It has several commented out suggested values.
+Other values may be used from the [values.yaml](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common/values.yaml) from the [common library](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common).
+{{- end -}}
+
+{{- define "custom.configuration.example.set" -}}
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`.
+
+```console
+helm install {{ template "chart.name" . }} \
+  --set env.TZ="America/New York" \
+    {{ template "custom.helm.path" . }}
+```
+{{- end -}}
+
+{{- define "custom.configuration.example.file" -}}
+Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart.
+
+```console
+helm install {{ template "chart.name" . }} {{ template "custom.helm.path" . }} -f values.yaml
+```
+{{- end -}}
+
+{{- define "custom.valuesSection" -}}
+## Values
+
+**Important**: When deploying an application Helm chart you can add more values from our common library chart [here](https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common)
+
+{{ template "chart.valuesTable" . }}
+{{- end -}}
+
+{{- define "custom.support" -}}
+## Support
+
+- See the [Docs](https://docs.k8s-at-home.com/our-helm-charts/getting-started/)
+- Open an [issue](https://github.com/k8s-at-home/charts/issues/new/choose)
+- Ask a [question](https://github.com/k8s-at-home/organization/discussions)
+- Join our [Discord](https://discord.gg/sTMX7Vh) community
+{{- end -}}
+
+{{- define "custom.changelog" -}}
+{{ $changeTypes := list "added" "changed" "fixed" }}
+## Changelog
+
+### Version {{ template "chart.version" . }}
+
+{{ range $changeType := $changeTypes }}
+  {{- with (index $.Annotations "artifacthub.io/changes") }}
+    {{- print "#### " ($changeType | title)  | nindent 0  }}
+    {{- print "" | nindent 0  }}
+    {{- $changesFound := false }}
+    {{- range (print "changes:\n" . | fromYaml).changes }}
+      {{- if eq .kind $changeType }}
+        {{- print "* " .description  | nindent 0 }}
+        {{- $changesFound = true }}
+      {{- end }}
+    {{- end }}
+    {{- if not $changesFound }}
+      {{- print "N/A" | nindent 0 }}
+    {{- end }}
+    {{- print "" | nindent 0  }}
+  {{- end }}
+{{- end }}
+
+### Older versions
+
+A historical overview of changes can be found on [ArtifactHUB](https://artifacthub.io/packages/helm/k8s-at-home/{{- template "chart.name" . }}?modal=changelog)
+
+{{- end -}}
+
+{{ template "chart.header" . }}
+
+{{ template "chart.versionBadge" . }}{{ template "chart.typeBadge" . }}{{ template "chart.appVersionBadge" . }}
+
+{{ template "chart.description" . }}
+
+{{ template "custom.notes" . }}
+
+{{ template "chart.sourcesSection" . }}
+
+{{ template "custom.requirements" . }}
+
+{{ template "custom.dependencies" . }}
+
+{{ template "custom.install.tldr" . }}
+
+{{ template "custom.install" . }}
+
+{{ template "custom.uninstall" . }}
+
+{{ template "custom.configuration.header" . }}
+
+{{ template "custom.configuration.readValues" . }}
+
+{{ template "custom.configuration.example.set" . }}
+
+{{ template "custom.configuration.example.file" . }}
+
+{{ template "custom.custom.configuration" . }}
+
+{{ template "custom.valuesSection" . }}
+
+{{ template "custom.changelog" . }}
+
+{{ template "custom.support" . }}
+
+{{ template "helm-docs.versionFooter" . }}
+{{ "" }}

charts/stable/influxdb-exporter/README_CONFIG.md.gotmpl

@@ -0,0 +1,9 @@
+{{- define "custom.custom.configuration.header" -}}
+## Custom configuration
+{{- end -}}
+
+{{- define "custom.custom.configuration" -}}
+{{ template "custom.custom.configuration.header" . }}
+
+N/A
+{{- end -}}

charts/stable/influxdb-exporter/templates/NOTES.txt

@@ -0,0 +1 @@
+{{- include "common.notes.defaultNotes" . -}}

charts/stable/influxdb-exporter/templates/common.yaml

@@ -0,0 +1 @@
+{{ include "common.all" . }}

charts/stable/influxdb-exporter/templates/servicemonitor.yaml

@@ -0,0 +1,32 @@
+{{- if .Values.metrics.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ include "common.names.fullname" . }}
+  labels:
+    {{- include "common.labels" . | nindent 4 }}
+    {{- with .Values.metrics.serviceMonitor.labels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+spec:
+  selector:
+    matchLabels:
+      {{- include "common.labels.selectorLabels" . | nindent 6 }}
+  endpoints:
+    - port: main
+      {{- with .Values.metrics.serviceMonitor.interval }}
+      interval: {{ . }}
+      {{- end }}
+      {{- with .Values.metrics.serviceMonitor.scrapeTimeout }}
+      scrapeTimeout: {{ . }}
+      {{- end }}
+      path: /metrics
+    - port: main
+      {{- with .Values.metrics.serviceMonitor.interval }}
+      interval: {{ . }}
+      {{- end }}
+      {{- with .Values.metrics.serviceMonitor.scrapeTimeout }}
+      scrapeTimeout: {{ . }}
+      {{- end }}
+      path: /metrics/exporter
+{{- end }}

charts/stable/influxdb-exporter/values.yaml

@@ -0,0 +1,47 @@
+#
+# IMPORTANT NOTE
+#
+# This chart inherits from our common library chart. You can check the default values/options here:
+# https://github.com/k8s-at-home/library-charts/tree/main/charts/stable/common/values.yaml
+#
+
+image:
+  # -- image repository
+  repository: prom/influxdb-exporter
+  # -- image tag
+  tag: v0.8.1
+  # -- image pull policy
+  pullPolicy: IfNotPresent
+
+# -- environment variables. See more environment variables in the [influxdb-exporter documentation](https://influxdb-exporter.org/docs).
+# @default -- See below
+env:
+  # -- Set the container timezone
+  TZ: UTC
+
+# -- Configures service settings for the chart.
+# @default -- See values.yaml
+service:
+  main:
+    type: ClusterIP
+    ports:
+      http:
+        port: 9122
+  udp:
+    enabled: true
+    type: LoadBalancer
+    ports:
+      udp:
+        enabled: true
+        port: 9122
+        protocol: UDP
+        targetPort: 9122
+
+metrics:
+  # -- Enable and configure prometheus-qbittorrent-exporter sidecar and Prometheus podMonitor.
+  # @default -- See values.yaml
+  enabled: false
+  serviceMonitor:
+    interval: 15s
+    scrapeTimeout: 5s
+    labels: {}