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Add ingress support
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‎charts/maildev/templates/NOTES.txt

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@@ -9,3 +9,8 @@
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Watch the status with: 'kubectl get svc --namespace {{ .Release.Namespace }} -w {{ include "maildev.fullname" . }}'
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{{- end }}
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{{- if .Values.ingress.enabled -}}
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From outside the cluster, the server URL(s) are:
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{{- range .Values.ingress.hosts }}
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http://{{ . }}
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{{- end }}

‎charts/maildev/templates/_helpers.tpl

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@@ -61,3 +61,41 @@ Create the name of the service account to use
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{{- default "default" .Values.serviceAccount.name }}
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{{- end }}
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{{- end }}
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{{/*
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Get KubeVersion removing pre-release information.
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*/}}
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{{- define "maildev.kubeVersion" -}}
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{{- default .Capabilities.KubeVersion.Version (regexFind "v[0-9]+\\.[0-9]+\\.[0-9]+" .Capabilities.KubeVersion.Version) -}}
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{{- end -}}
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{{/*
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Return the appropriate apiVersion for ingress.
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*/}}
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{{- define "maildev.ingress.apiVersion" -}}
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{{- if and (.Capabilities.APIVersions.Has "networking.k8s.io/v1") (semverCompare ">= 1.19.x" (include "maildev.kubeVersion" .)) -}}
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{{- print "networking.k8s.io/v1" -}}
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{{- else if .Capabilities.APIVersions.Has "networking.k8s.io/v1beta1" -}}
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{{- print "networking.k8s.io/v1beta1" -}}
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{{- else -}}
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{{- print "extensions/v1beta1" -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Return if ingress is stable.
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*/}}
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{{- define "maildev.ingress.isStable" -}}
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{{- eq (include "maildev.ingress.apiVersion" .) "networking.k8s.io/v1" -}}
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{{- end -}}
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{{/*
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Return if ingress supports ingressClassName.
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*/}}
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{{- define "maildev.ingress.supportsIngressClassName" -}}
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{{- or (eq (include "maildev.ingress.isStable" .) "true") (and (eq (include "maildev.ingress.apiVersion" .) "networking.k8s.io/v1beta1") (semverCompare ">= 1.18.x" (include "maildev.kubeVersion" .))) -}}
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{{- end -}}
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{{/*
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Return if ingress supports pathType.
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*/}}
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{{- define "maildev.ingress.supportsPathType" -}}
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{{- or (eq (include "maildev.ingress.isStable" .) "true") (and (eq (include "maildev.ingress.apiVersion" .) "networking.k8s.io/v1beta1") (semverCompare ">= 1.18.x" (include "maildev.kubeVersion" .))) -}}
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{{- end -}}

‎charts/maildev/templates/ingress.yaml

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{{- if .Values.ingress.enabled -}}
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{{- $ingressApiIsStable := eq (include "maildev.ingress.isStable" .) "true" -}}
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{{- $ingressSupportsIngressClassName := eq (include "maildev.ingress.supportsIngressClassName" .) "true" -}}
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{{- $ingressSupportsPathType := eq (include "maildev.ingress.supportsPathType" .) "true" -}}
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{{- $fullName := include "maildev.fullname" . -}}
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{{- $serviceName := printf "%s-web" $fullName -}}
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{{- $servicePort := .Values.ports.web -}}
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{{- $ingressPath := .Values.ingress.path -}}
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{{- $ingressPathType := .Values.ingress.pathType -}}
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{{- $extraPaths := .Values.ingress.extraPaths -}}
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apiVersion: {{ include "maildev.ingress.apiVersion" . }}
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kind: Ingress
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metadata:
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name: {{ $fullName }}
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labels:
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{{- include "maildev.labels" . | nindent 4 }}
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{{- if .Values.ingress.labels }}
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{{ toYaml .Values.ingress.labels | indent 4 }}
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{{- end }}
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{{- if .Values.ingress.annotations }}
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annotations:
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{{- range $key, $value := .Values.ingress.annotations }}
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{{ $key }}: {{ tpl $value $ | quote }}
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{{- end }}
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{{- end }}
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spec:
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{{- if and $ingressSupportsIngressClassName .Values.ingress.ingressClassName }}
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ingressClassName: {{ .Values.ingress.ingressClassName }}
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{{- end -}}
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{{- if .Values.ingress.tls }}
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tls:
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{{ tpl (toYaml .Values.ingress.tls) $ | indent 4 }}
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{{- end }}
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rules:
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{{- if .Values.ingress.hosts }}
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{{- range .Values.ingress.hosts }}
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- host: {{ tpl . $}}
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http:
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paths:
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{{- if $extraPaths }}
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{{ toYaml $extraPaths | indent 10 }}
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{{- end }}
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- path: {{ $ingressPath }}
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{{- if $ingressSupportsPathType }}
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pathType: {{ $ingressPathType }}
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{{- end }}
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backend:
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{{- if $ingressApiIsStable }}
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service:
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name: {{ $serviceName }}
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port:
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number: {{ $servicePort }}
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{{- else }}
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serviceName: {{ $serviceName }}
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servicePort: {{ $servicePort }}
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{{- end }}
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{{- end }}
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{{- else }}
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- http:
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paths:
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- backend:
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{{- if $ingressApiIsStable }}
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service:
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name: {{ $serviceName }}
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port:
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number: {{ $servicePort }}
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{{- else }}
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serviceName: {{ $serviceName }}
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servicePort: {{ $servicePort }}
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{{- end }}
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{{- if $ingressPath }}
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path: {{ $ingressPath }}
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{{- end }}
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{{- if $ingressSupportsPathType }}
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pathType: {{ $ingressPathType }}
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{{- end }}
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{{- end -}}
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{{- end }}

‎charts/maildev/values.yaml

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service:
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type: ClusterIP
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ingress:
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enabled: false
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# For Kubernetes >= 1.18 you should specify the ingress-controller via the field ingressClassName
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# See https://kubernetes.io/blog/2020/04/02/improvements-to-the-ingress-api-in-kubernetes-1.18/#specifying-the-class-of-an-ingress
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# ingressClassName: nginx
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# Values can be templated
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annotations: {}
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# kubernetes.io/ingress.class: nginx
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# kubernetes.io/tls-acme: "true"
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labels: {}
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path: /
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# pathType is only for k8s >= 1.18
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pathType: Prefix
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hosts:
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- chart-example.local
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## Extra paths to prepend to every host configuration. This is useful when working with annotation based services.
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extraPaths: []
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# - path: /*
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# backend:
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# serviceName: ssl-redirect
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# servicePort: use-annotation
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## Or for k8s > 1.19
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# - path: /*
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# pathType: Prefix
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# backend:
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# service:
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# name: ssl-redirect
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# port:
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# name: service
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tls: []
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# - secretName: chart-example-tls
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# hosts:
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# - chart-example.local
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resources: {}
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# We usually recommend not to specify default resources and to leave this as a conscious
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# choice for the user. This also increases chances charts run on environments with little

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