Init helm chart

chart/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "external-services.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 "external-services.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 "external-services.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "external-services.labels" -}}
+helm.sh/chart: {{ include "external-services.chart" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "external-services.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "external-services.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

chart/templates/endpoint.yaml

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+{{- $name := include "external-services.name" . -}}
+
+{{- range .Values.services -}}
+{{- $endpointName := printf "%s-%s" $name .name }}
+---
+apiVersion: v1
+kind: Endpoints
+metadata:
+  name: {{ $endpointName }}
+  labels:
+    {{- include "external-services.labels" $ | nindent 4 }}
+subsets:
+- addresses:
+  {{- range .addresses }}
+  - ip: {{ . }}
+  {{- end }}
+  ports:
+  - name: {{ .portName }}
+    port: {{ .targetPort }}
+    protocol: {{ .protocol }}
+{{- end }}

chart/templates/ingress.yaml

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+{{- $fullName := include "external-services.fullname" . -}}
+{{- $name := include "external-services.name" . -}}
+
+{{- range .Values.services }}
+{{- if and $.Values.ingress.className (not (semverCompare ">=1.18-0" $.Capabilities.KubeVersion.GitVersion)) }}
+  {{- if not (hasKey .ingress.annotations "kubernetes.io/ingress.class") }}
+  {{- $_ := set .ingress.annotations "kubernetes.io/ingress.class" $.Values.ingress.className}}
+  {{- end }}
+{{- end -}}
+
+{{- $ingressName := printf "%s-%s" $fullName .name }}
+{{- $serviceName := printf "%s-%s" $name .name }}
+{{- $servicePort := .port }}
+{{- $servicePortName := .portName }}
+---
+{{- if semverCompare ">=1.19-0" $.Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1
+{{- else if semverCompare ">=1.14-0" $.Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $ingressName }}
+  labels:
+    {{- include "external-services.labels" $ | nindent 4 }}
+  {{- with .ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if and $.Values.ingress.className (semverCompare ">=1.18-0" $.Capabilities.KubeVersion.GitVersion) }}
+  ingressClassName: {{ $.Values.ingress.className }}
+  {{- end }}
+  {{- if .ingress.tls }}
+  tls:
+    {{- range .ingress.tls }}
+    - hosts:
+        {{- range .hosts }}
+        - {{ . | quote }}
+        {{- end }}
+      secretName: {{ .secretName }}
+    {{- end }}
+  {{- end }}
+  rules:
+    {{- range .ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+          {{- range .paths }}
+          - path: {{ .path }}
+            {{- if and .pathType (semverCompare ">=1.18-0" $.Capabilities.KubeVersion.GitVersion) }}
+            pathType: {{ .pathType }}
+            {{- end }}
+            backend:
+              {{- if semverCompare ">=1.19-0" $.Capabilities.KubeVersion.GitVersion }}
+              service:
+                name: {{ $serviceName }}
+                port:
+                  name: {{ $servicePortName }}
+              {{- else }}
+              serviceName: {{ $serviceName }}
+              servicePort: {{ $servicePort  }}
+              {{- end }}
+          {{- end }}
+    {{- end }}
+{{- end }}

chart/templates/service.yaml

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+{{- $name := include "external-services.name" . -}}
+
+{{- range .Values.services -}}
+{{- $serviceName := printf "%s-%s" $name .name }}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ $serviceName }}
+  labels:
+    {{- include "external-services.labels" $ | nindent 4 }}
+spec:
+  type: ClusterIP
+  ports:
+    - name: {{ .portName }}
+      port: {{ .port }}
+      targetPort: {{ .targetPort }}
+      protocol: {{ .protocol }}
+  clusterIP: None
+{{- end }}