Fixing #28: ingress host names and resource names have different sanitization needs

charts/common/templates/_helpers.tpl

@@ -6,5 +6,5 @@ Create robustName that can be used as Kubernetes resource name, and as subdomain
 \W – all but \w .
 */}}
 {{- define "common.robustName" -}}
-{{ regexReplaceAll "[^0-9A-Za-z_\\.]+" . "-" | replace "_" "-" | lower | trunc 63 | trimSuffix "-" | trimPrefix "-" }}
+{{ regexReplaceAll "\\W+" . "-" | replace "_" "-" | lower | trunc 63 | trimSuffix "-" }}
 {{- end }}

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 "[^0-9A-Za-z_\\.]+" . "-" | replace "_" "-" | lower | trunc 63 | trimSuffix "-" | trimPrefix "-" }}
+{{ regexReplaceAll "\\W+" . "-" | replace "_" "-" | lower | trunc 63 | trimSuffix "-" }}
 {{- end }}

charts/onechart/templates/ingress.yaml

@@ -29,11 +29,11 @@ spec:
   {{- if default false .ingress.tlsEnabled }}
   tls:
     - hosts:
-        - {{ template "robustName" .ingress.host | quote }}
+        - {{ .ingress.host | quote }}
       secretName: {{ printf "tls-%s" $resourceName }}
   {{- end }}
   rules:
-    - host: {{ template "robustName" .ingress.host | quote }}
+    - host: {{ .ingress.host | quote }}
       http:
         paths:
           - backend:

charts/onechart/tests/ingress_domain_test.yaml

@@ -23,7 +23,7 @@ tests:
                 - backend:
                     serviceName: release-name
                     servicePort: 80
-  - it: Should conform to DNS names
+  - it: Should pass ingress host name as is, user must sanitize it
     set:
       ingress:
         host: feature/my_branch.local
@@ -33,12 +33,12 @@ tests:
           path: spec.tls
           value:
             - hosts:
-                - feature-my-branch.local
+                - feature/my_branch.local
               secretName: tls-release-name
       - equal:
           path: spec.rules
           value:
-            - host: feature-my-branch.local
+            - host: feature/my_branch.local
               http:
                 paths:
                 - backend:
@@ -100,4 +100,4 @@ tests:
           value:
             - hosts:
                 - chart-example.local
-              secretName: tls-release-name-chart-example.local
+              secretName: tls-release-name-chart-example-local