Fixing robustName to allow '.'

charts/onechart/templates/_helpers.tpl

@@ -68,5 +68,5 @@ Create robustName that can be used as Kubernetes resource name, and as subdomain
 \W – all but \w .
 */}}
 {{- define "robustName" -}}
-{{ regexReplaceAll "\\W+" . "-" | replace "_" "-" | lower | trunc 63 | trimSuffix "-" }}
+{{ regexReplaceAll "[^0-9A-Za-z_\\.]+" . "-" | replace "_" "-" | lower | trunc 63 | trimSuffix "-" | trimPrefix "-" }}
 {{- end }}

charts/onechart/templates/ingress.yaml

@@ -1,6 +1,7 @@
 {{- $labels := include "helm-chart.labels" . -}}
 
 {{- with .Values.ingress -}}
+{{- $robustName := include "robustName" $.Release.Name -}}
 {{- if semverCompare ">=1.14-0" $.Capabilities.KubeVersion.GitVersion -}}
 apiVersion: networking.k8s.io/v1beta1
 {{- else -}}
@@ -8,7 +9,7 @@ apiVersion: extensions/v1beta1
 {{- end }}
 kind: Ingress
 metadata:
-  name: {{ template "robustName" $.Release.Name }}
+  name: {{ $robustName }}
   namespace: {{ $.Release.Namespace }}
   labels:
     {{- $labels | nindent 4 }}
@@ -20,8 +21,8 @@ spec:
   {{- if default false .tlsEnabled }}
   tls:
     - hosts:
-        - {{ .host | quote }}
-      secretName: {{ printf "tls-%s" $.Release.Name }}
+        - {{ template "robustName" .host | quote }}
+      secretName: {{ printf "tls-%s" $robustName }}
   {{- end }}
   rules:
     - host: {{ template "robustName" .host | quote }}

charts/onechart/tests/ingress_domain_test.yaml

@@ -13,7 +13,37 @@ tests:
           value:
             - hosts:
                 - chart-example.local
-              secretName: tls-RELEASE-NAME
+              secretName: tls-release-name
+      - equal:
+          path: spec.rules
+          value:
+            - host: chart-example.local
+              http:
+                paths:
+                - backend:
+                    serviceName: release-name
+                    servicePort: 80
+  - it: Should conform to DNS names
+    set:
+      ingress:
+        host: feature/my_branch.local
+        tlsEnabled: true
+    asserts:
+      - equal:
+          path: spec.tls
+          value:
+            - hosts:
+                - feature-my-branch.local
+              secretName: tls-release-name
+      - equal:
+          path: spec.rules
+          value:
+            - host: feature-my-branch.local
+              http:
+                paths:
+                - backend:
+                    serviceName: release-name
+                    servicePort: 80
   - it: Should set Ingress annotation
     set:
       ingress: