[logstash] first version of logstash helm chart

logstash/.helmignore

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+tests/
+.pytest_cache/

logstash/Chart.yaml

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+description: Official Elastic helm chart for Logstash
+home: https://github.com/elastic/helm-charts
+maintainers:
+- email: helm-charts@elastic.co
+  name: Elastic
+name: logstash
+version: 7.4.0
+appVersion: 7.4.0
+sources:
+  - https://github.com/elastic/logstash
+icon: https://helm.elastic.co/icons/logstash.png

logstash/Makefile

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+include ../helpers/common.mk

logstash/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "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).
+*/}}
+{{- define "fullname" -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Return the appropriate apiVersion for statefulset.
+*/}}
+{{- define "logstash.statefulset.apiVersion" -}}
+{{- if semverCompare "<1.9-0" .Capabilities.KubeVersion.GitVersion -}}
+{{- print "apps/v1beta2" -}}
+{{- else -}}
+{{- print "apps/v1" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Return the appropriate apiVersion for ingress.
+*/}}
+{{- define "logstash.ingress.apiVersion" -}}
+{{- if semverCompare "<1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+{{- print "extensions/v1beta1" -}}
+{{- else -}}
+{{- print "networking.k8s.io/v1beta1" -}}
+{{- end -}}
+{{- end -}}

logstash/templates/configmap-config.yaml

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+{{- if .Values.logstashConfig }}
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "fullname" . }}-config
+  labels:
+    app: "{{ template "fullname" . }}"
+    chart: "{{ .Chart.Name }}"
+    heritage: {{ .Release.Service | quote }}
+    release: {{ .Release.Name | quote }}
+data:
+{{- range $path, $config := .Values.logstashConfig }}
+  {{ $path }}: |
+{{ $config | indent 4 -}}
+{{- end -}}
+{{- end -}}

logstash/templates/configmap-pipeline.yaml

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+{{- if .Values.logstashPipeline }}
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "fullname" . }}-pipeline
+  labels:
+    app: "{{ template "fullname" . }}"
+    chart: "{{ .Chart.Name }}"
+    heritage: {{ .Release.Service | quote }}
+    release: {{ .Release.Name | quote }}
+data:
+{{- range $path, $config := .Values.logstashPipeline }}
+  {{ $path }}: |
+{{ $config | indent 4 -}}
+{{- end -}}
+{{- end -}}

logstash/templates/ingress.yaml

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+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "fullname" . -}}
+{{- $servicePort := .Values.service.port -}}
+{{- $ingressPath := .Values.ingress.path -}}
+apiVersion: {{ template "logstash.ingress.apiVersion" . }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    app: "{{ template "fullname" . }}"
+    chart: "{{ .Chart.Name }}"
+    heritage: {{ .Release.Service | quote }}
+    release: {{ .Release.Name | quote }}
+{{- with .Values.ingress.annotations }}
+  annotations:
+{{ toYaml . | indent 4 }}
+{{- end }}
+spec:
+{{- if .Values.ingress.tls }}
+  tls:
+{{ toYaml .Values.ingress.tls | indent 4 }}
+{{- end }}
+  rules:
+  {{- range .Values.ingress.hosts }}
+    - host: {{ . }}
+      http:
+        paths:
+          - path: {{ $ingressPath }}
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: {{ $servicePort }}
+  {{- end }}
+{{- end }}

logstash/templates/poddisruptionbudget.yaml

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+---
+{{- if .Values.maxUnavailable }}
+apiVersion: policy/v1beta1
+kind: PodDisruptionBudget
+metadata:
+  name: "{{ template "fullname" . }}-pdb"
+  labels:
+    app: "{{ template "fullname" . }}"
+    chart: "{{ .Chart.Name }}"
+    heritage: {{ .Release.Service | quote }}
+    release: {{ .Release.Name | quote }}
+spec:
+  maxUnavailable: {{ .Values.maxUnavailable }}
+  selector:
+    matchLabels:
+      app: "{{ template "fullname" . }}"
+{{- end }}

logstash/templates/podsecuritypolicy.yaml

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+{{- if .Values.podSecurityPolicy.create -}}
+{{- $fullName := include "fullname" . -}}
+apiVersion: policy/v1beta1
+kind: PodSecurityPolicy
+metadata:
+  name: {{ default $fullName .Values.podSecurityPolicy.name | quote }}
+  labels:
+    app: "{{ template "fullname" . }}"
+    chart: "{{ .Chart.Name }}"
+    heritage: {{ .Release.Service | quote }}
+    release: {{ .Release.Name | quote }}
+spec:
+{{ toYaml .Values.podSecurityPolicy.spec | indent 2 }}
+{{- end -}}

logstash/templates/role.yaml

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+{{- if .Values.rbac.create -}}
+{{- $fullName := include "fullname" . -}}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: {{ $fullName | quote }}
+  labels:
+    app: "{{ template "fullname" . }}"
+    chart: "{{ .Chart.Name }}"
+    heritage: {{ .Release.Service | quote }}
+    release: {{ .Release.Name | quote }}
+rules:
+  - apiGroups:
+      - extensions
+    resources:
+      - podsecuritypolicies
+    resourceNames:
+      {{- if eq .Values.podSecurityPolicy.name "" }}
+      - {{ $fullName | quote }}
+      {{- else }}
+      - {{ .Values.podSecurityPolicy.name | quote }}
+      {{- end }}
+    verbs:
+      - use
+{{- end -}}

logstash/templates/rolebinding.yaml

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+{{- if .Values.rbac.create -}}
+{{- $fullName := include "fullname" . -}}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: {{ $fullName | quote }}
+  labels:
+    app: "{{ template "fullname" . }}"
+    chart: "{{ .Chart.Name }}"
+    heritage: {{ .Release.Service | quote }}
+    release: {{ .Release.Name | quote }}
+subjects:
+  - kind: ServiceAccount
+    {{- if eq .Values.rbac.serviceAccountName "" }}
+    name: {{ $fullName | quote }}
+    {{- else }}
+    name: {{ .Values.rbac.serviceAccountName | quote }}
+    {{- end }}
+    namespace: {{ .Release.Namespace | quote }}
+roleRef:
+  kind: Role
+  name: {{ $fullName | quote }}
+  apiGroup: rbac.authorization.k8s.io
+{{- end -}}

logstash/templates/service.yaml

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+---
+kind: Service
+apiVersion: v1
+metadata:
+  name: {{ template "fullname" . }}
+  labels:
+    app: "{{ template "fullname" . }}"
+    chart: "{{ .Chart.Name }}"
+    heritage: {{ .Release.Service | quote }}
+    release: {{ .Release.Name | quote }}
+  annotations:
+{{ toYaml .Values.service.annotations | indent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  selector:
+    app: "{{ template "fullname" . }}"
+    chart: "{{ .Chart.Name }}"
+    release: {{ .Release.Name | quote }}
+    heritage: {{ .Release.Service | quote }}
+  ports:
+  - name: http
+    port: {{ .Values.service.port }}
+    protocol: TCP
+    targetPort: {{ .Values.httpPort }}
+{{- if .Values.service.nodePort }}
+    nodePort: {{ .Values.service.nodePort }}
+{{- end }}

logstash/templates/serviceaccount.yaml

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+{{- if .Values.rbac.create -}}
+{{- $fullName := include "fullname" . -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  {{- if eq .Values.rbac.serviceAccountName "" }}
+  name: {{ $fullName | quote }}
+  {{- else }}
+  name: {{ .Values.rbac.serviceAccountName | quote }}
+  {{- end }}
+  labels:
+    app: "{{ template "fullname" . }}"
+    chart: "{{ .Chart.Name }}"
+    heritage: {{ .Release.Service | quote }}
+    release: {{ .Release.Name | quote }}
+{{- end -}}