Init helm chart

README.md

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+# External Services Helm chart

chart/.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/

chart/Chart.yaml

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+apiVersion: v2
+name: external-services
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "1.16.0"

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 }}

chart/values.yaml

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+# Default values for external-services.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+ingress:
+  className: nginx
+
+# services:
+#   - name: proxmox
+#     portName: app
+#     port: 80
+#     targetPort: 8006
+#     protocol: TCP
+#     addresses:
+#       - 192.168.1.1
+#     ingress:
+#       annotations:
+#         cert-manager.io/cluster-issuer: letsencrypt-production
+#       hosts:
+#       - host: proxmox.op8.fun
+#         paths:
+#         - path: /
+#           pathType: Prefix
+#       tls:
+#       - hosts:
+#         - proxmox.op8.fun
+#         secretName: proxmox-letsencrypt
+services: []