Add Helm Chart

Change-Id: I1b1139ac6a3d47662e11ac76d0dee3ae8f6e00a9

charts/kafka-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
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/kafka-exporter/Chart.yaml

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+apiVersion: v1
+appVersion: "1.0"
+description: A Helm chart for Kubernetes
+name: kafka-exporter
+version: 1.0.0
+home: https://github.com/abhishekjiitr/kafka-exporter-helm
+maintainers:
+  - name: abhishekjiitr
+    email: abhi2254015@gmail.com

charts/kafka-exporter/templates/NOTES.txt

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+1.To see the metrics
+{{- if contains "ClusterIP" .Values.service.type }}
+  kubectl port-forward svc/{{ include "kafka-exporter.fullname" . }} {{ .Values.service.port }}
+  echo "Visit http://127.0.0.1:{{ .Values.service.port }} to use your application"
+{{- end }}

charts/kafka-exporter/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "kafka-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 "kafka-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 "kafka-exporter.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}

charts/kafka-exporter/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "kafka-exporter.fullname" . }}
+  labels:
+    app.kubernetes.io/name: {{ include "kafka-exporter.name" . }}
+    helm.sh/chart: {{ include "kafka-exporter.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ include "kafka-exporter.name" . }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: {{ include "kafka-exporter.name" . }}
+        app.kubernetes.io/instance: {{ .Release.Name }}
+    spec:
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          args:
+            {{- if .Values.kafkaExporter}}
+            {{- range .Values.kafkaExporter.kafka.servers }}
+            - "--kafka.server={{ . }}"
+            {{- end }}
+            {{- if .Values.kafkaExporter.kafka.version }}
+            - --kafka.version={{ .Values.kafkaExporter.kafka.version }}
+            {{- end }}
+            {{- end}}
+            {{- if .Values.kafkaExporter.sasl.enabled }}
+            - --sasl.enabled
+            {{- if not .Values.kafkaExporter.sasl.handshake }}
+            - --sasl.handshake=false
+            {{- end }}
+            - --sasl.username={{ .Values.kafkaExporter.sasl.username }}
+            - --sasl.password={{ .Values.kafkaExporter.sasl.password }}
+            {{- end }}
+            {{- if .Values.kafkaExporter.tls.enabled}}
+            - --tls.enabled
+            - --tls.ca-file=/etc/tls-certs/ca-file
+            - --tls.cert-file=/etc/tls-certs/cert-file
+            - --tls.key-file=/etc/tls-certs/key-file
+            {{- end }}
+            {{- if .Values.kafkaExporter.log }}
+            - --log.level={{ .Values.kafkaExporter.log.level }}
+            {{- if .Values.kafkaExporter.log.enableSarama }}
+            - --log.enable-sarama
+            {{- end }}
+            {{- end }}
+          ports:
+            - name: metrics
+              containerPort: 9308
+              protocol: TCP
+          {{- if .Values.kafkaExporter.tls.enabled }}
+          volumeMounts:
+          - name: tls-certs
+            mountPath: "/etc/tls-certs/"
+            readOnly: true
+          {{- end }}
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+      {{- with .Values.nodeSelector }}
+
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+    {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+    {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+    {{- if .Values.kafkaExporter.tls.enabled }}
+      volumes:
+      - name: tls-certs
+        secret:
+          secretName: {{ include "kafka-exporter.fullname" . }}
+    {{- end }}

charts/kafka-exporter/templates/secret.yaml

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+{{- if .Values.kafkaExporter.tls.enabled }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "kafka-exporter.fullname" . }}
+  labels:
+    app.kubernetes.io/name: {{ include "kafka-exporter.name" . }}
+    helm.sh/chart: {{ include "kafka-exporter.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+data:
+  ca-file: {{ .Values.kafkaExporter.tls.caFile | b64enc }}
+  cert-file: {{ .Values.kafkaExporter.tls.certFile | b64enc }}
+  key-file: {{ .Values.kafkaExporter.tls.keyFile | b64enc }}
+{{- end }}

charts/kafka-exporter/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "kafka-exporter.fullname" . }}
+  labels:
+    app.kubernetes.io/name: {{ include "kafka-exporter.name" . }}
+    helm.sh/chart: {{ include "kafka-exporter.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: metrics
+      protocol: TCP
+      name: metrics
+  selector:
+    app.kubernetes.io/name: {{ include "kafka-exporter.name" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}

charts/kafka-exporter/templates/servicemonitor.yaml

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+{{- if .Values.prometheus.serviceMonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ include "kafka-exporter.fullname" . }}
+  {{- if .Values.prometheus.serviceMonitor.namespace }}
+  namespace: {{ .Values.prometheus.serviceMonitor.namespace }}
+  {{- end }}
+  labels:
+    app.kubernetes.io/name: {{ include "kafka-exporter.name" . }}
+    helm.sh/chart: {{ include "kafka-exporter.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    {{- if .Values.prometheus.serviceMonitor.additionalLabels }}
+{{ toYaml .Values.prometheus.serviceMonitor.additionalLabels | indent 4 -}}
+    {{- end }}
+spec:
+  jobLabel: jobLabel
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ include "kafka-exporter.name" . }}
+      helm.sh/chart: {{ include "kafka-exporter.chart" . }}
+  namespaceSelector:
+    matchNames:
+    - {{ .Release.Namespace }}
+  endpoints:
+  - port: metrics
+    interval: {{ .Values.prometheus.serviceMonitor.interval }}
+    {{- if .Values.prometheus.serviceMonitor.scrapeTimeout }}
+    scrapeTimeout: {{ .Values.prometheus.serviceMonitor.scrapeTimeout }}
+    {{- end }}
+{{- end }}

charts/kafka-exporter/values.yaml

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+# Default values for kafka-exporter.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+  repository: danielqsj/kafka-exporter
+  tag: latest
+  pullPolicy: IfNotPresent
+
+nameOverride: ""
+fullnameOverride: ""
+
+service:
+  type: ClusterIP
+  port: 9308
+
+kafkaExporter:
+  kafka:
+    servers: []
+      # - kafka:9092
+    # version: "1.0.0"
+
+  sasl:
+    enabled: false
+    handshake: true
+    username: ""
+    password: ""
+
+  tls:
+    enabled: false
+    insecure-skip-tls-verify: false
+    caFile: ""
+    certFile: ""
+    keyFile: ""
+
+  log:
+    level: info
+    enableSarama: false
+
+prometheus:
+  serviceMonitor:
+    enabled: true
+    namespace: monitoring
+    interval: "30s"
+    additionalLabels:
+      app: kafka-exporter
+
+
+resources: {}
+  # We usually recommend not to specify default resources and to leave this as a conscious
+  # choice for the user. This also increases chances charts run on environments with little
+  # resources, such as Minikube. If you do want to specify resources, uncomment the following
+  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+  # limits:
+  #   cpu: 100m
+  #   memory: 128Mi
+  # requests:
+  #   cpu: 100m
+  #   memory: 128Mi
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}