prometheus statsd exporter: migrate from niclic chart repository

charts/prometheus-statsd-exporter/.helmignore

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+# 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
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/prometheus-statsd-exporter/Chart.yaml

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+apiVersion: v2
+name: prometheus-statsd-exporter
+home: https://github.com/prometheus/statsd_exporter
+description: StatsD to Prometheus metrics exporter.
+type: application
+version: 1.0.0
+appVersion: 0.18.0
+keywords:
+- statsd
+- prometheus
+- metrics
+- graphite
+maintainers:
+- name: niclic
+  email: git@niclic.com

charts/prometheus-statsd-exporter/README.md

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+# prometheus-statsd-exporter
+
+The [prometheus-statsd-exporter](https://github.com/prometheus/statsd_exporter) receives StatsD metrics and exports them as Prometheus metrics.
+
+This chart creates a `prometheus-statsd-exporter` deployment using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Kubernetes 1.16 or above
+
+## Get Repo Info
+
+```console
+helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
+help repo update
+```
+
+_See [helm repo](https://helm.sh/docs/helm/helm_repo/) for command documentation._
+
+## Install Chart
+
+```console
+# Helm 3
+$ helm install [RELEASE_NAME] prometheus-community/prometheus-statsd-exporter
+
+# Helm 2
+$ helm install --name [RELEASE_NAME] prometheus-community/prometheus-statsd-exporter
+```
+
+_See [configuration](#configuration) below._
+
+_See [helm install](https://helm.sh/docs/helm/helm_install/) for command documentation._
+
+## Test Chart
+
+```sh
+helm test prometheus-statsd-exporter
+```
+
+_See [helm test](https://helm.sh/docs/helm/helm_test/) for command documentation._
+
+## Uninstall Chart
+
+```console
+# Helm 3
+$ helm uninstall [RELEASE_NAME]
+
+# Helm 2
+$ helm delete --purge [RELEASE_NAME]
+```
+
+This removes all the Kubernetes components associated with the chart and deletes the release.
+
+_See [helm uninstall](https://helm.sh/docs/helm/helm_uninstall/) for command documentation._
+
+
+## Upgrading Chart
+
+```console
+# Helm 3 or 2
+$ helm upgrade [RELEASE_NAME] [CHART] --install
+```
+
+_See [helm upgrade](https://helm.sh/docs/helm/helm_upgrade/) for command documentation._
+
+
+## Configuration
+
+See [Customizing the Chart Before Installing](https://helm.sh/docs/intro/using_helm/#customizing-the-chart-before-installing). To see all configurable options with detailed comments, visit the chart's [values.yaml](./values.yaml), or run these configuration commands:
+
+```console
+# Helm 2
+$ helm inspect values prometheus-community/prometheus-statsd-exporter
+
+# Helm 3
+$ helm show values prometheus-community/prometheus-statsd-exporter
+```
+
+## Metric Mapping and Configuration
+This chart provides a minimal default configuration. To create a custom mapping configuration and review default settings, consult the [official docs](https://github.com/prometheus/statsd_exporter#metric-mapping-and-configuration).

charts/prometheus-statsd-exporter/templates/NOTES.txt

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+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ . }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "prometheus-statsd-exporter.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "prometheus-statsd-exporter.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "prometheus-statsd-exporter.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.webPort }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "prometheus-statsd-exporter.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:{{ .Values.webPort }}
+{{- end }}

charts/prometheus-statsd-exporter/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "prometheus-statsd-exporter.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "prometheus-statsd-exporter.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "prometheus-statsd-exporter.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "prometheus-statsd-exporter.labels" -}}
+helm.sh/chart: {{ include "prometheus-statsd-exporter.chart" . }}
+{{ include "prometheus-statsd-exporter.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "prometheus-statsd-exporter.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "prometheus-statsd-exporter.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "prometheus-statsd-exporter.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "prometheus-statsd-exporter.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

charts/prometheus-statsd-exporter/templates/configmap.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "prometheus-statsd-exporter.fullname" . }}-mapping-config
+  labels:
+    {{- include "prometheus-statsd-exporter.labels" . | nindent 4 }}
+data:
+  statsd-mapping.conf: |-
+{{ .Values.statsdMappingConfig | indent 4 }}

charts/prometheus-statsd-exporter/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "prometheus-statsd-exporter.fullname" . }}
+  labels:
+    {{- include "prometheus-statsd-exporter.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "prometheus-statsd-exporter.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      annotations:
+        checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
+        {{- if .Values.podAnnotations }}
+{{ toYaml .Values.podAnnotations | indent 8 }}
+        {{- end}}
+      labels:
+        {{- include "prometheus-statsd-exporter.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "prometheus-statsd-exporter.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      {{- if .Values.priorityClassName }}
+      priorityClassName: {{ .Values.priorityClassName }}
+      {{- end }}        
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          args:
+            - --web.listen-address=:{{ .Values.webPort }}
+            - --web.telemetry-path=/metrics
+            - --statsd.listen-udp=:{{ .Values.udpPort }}
+            - --statsd.listen-tcp=:{{ .Values.tcpPort }}
+            - --statsd.mapping-config=/etc/{{ template "prometheus-statsd-exporter.name" . }}/statsd-mapping.conf
+          ports:
+            - name: web
+              containerPort: {{ .Values.webPort }}
+              protocol: TCP
+            - name: statsd-udp
+              containerPort: {{ .Values.udpPort }}
+              protocol: UDP
+            - name: statsd-tcp
+              containerPort: {{ .Values.tcpPort }}
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /metrics
+              port: web
+              scheme: HTTP
+            initialDelaySeconds: 30
+            periodSeconds: 30
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          volumeMounts:
+            - name: statsd-mapping-config
+              mountPath: /etc/{{ template "prometheus-statsd-exporter.name" . }}
+      volumes:
+        - name: statsd-mapping-config
+          configMap:
+            name: {{ template "prometheus-statsd-exporter.fullname" . }}-mapping-config
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

charts/prometheus-statsd-exporter/templates/ingress.yaml

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+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "prometheus-statsd-exporter.fullname" . -}}
+{{- $svcPort := .Values.webPort -}}
+{{- if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    {{- include "prometheus-statsd-exporter.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if .Values.ingress.tls }}
+  tls:
+    {{- range .Values.ingress.tls }}
+    - hosts:
+        {{- range .hosts }}
+        - {{ . | quote }}
+        {{- end }}
+      secretName: {{ .secretName }}
+    {{- end }}
+  {{- end }}
+  rules:
+    {{- range .Values.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+          - path: /metrics
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+    {{- end }}
+  {{- end }}

charts/prometheus-statsd-exporter/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "prometheus-statsd-exporter.fullname" . }}
+  labels:
+    {{- include "prometheus-statsd-exporter.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - name: web
+      port: {{ .Values.webPort }}
+      protocol: TCP
+      targetPort: {{ .Values.webPort }}
+    - name: statsd-udp
+      port: {{ .Values.udpPort }}
+      protocol: UDP
+      targetPort: {{ .Values.udpPort }}
+    - name: statsd-tcp
+      port: {{ .Values.tcpPort }}
+      protocol: TCP
+      targetPort: {{ .Values.tcpPort }}
+  selector:
+    {{- include "prometheus-statsd-exporter.selectorLabels" . | nindent 4 }}

charts/prometheus-statsd-exporter/templates/serviceaccount.yaml

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+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "prometheus-statsd-exporter.serviceAccountName" . }}
+  labels:
+    {{- include "prometheus-statsd-exporter.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}

charts/prometheus-statsd-exporter/templates/tests/test-metrics-endpoint.yaml

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+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{ include "prometheus-statsd-exporter.fullname" . }}-test-metrics-endpoint"
+  labels:
+    {{- include "prometheus-statsd-exporter.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test-success
+    "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
+spec:
+  containers:
+    - name: wget
+      image: busybox
+      command: ['wget']
+      args: ['--spider', '{{ include "prometheus-statsd-exporter.fullname" . }}:{{ .Values.webPort }}/metrics']
+  restartPolicy: Never