Support custom Ingress path (#151)

Adds support for a custom Ingress path. This allows us to run Gitea as a path in an existing domain.

Co-authored-by: Matt Kaar <mkaar@cert.org>
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/151
Reviewed-by: luhahn <luhahn@noreply.gitea.io>
Reviewed-by: justusbunsi <justusbunsi@noreply.gitea.io>
Co-authored-by: mattkaar <mattkaar@noreply.gitea.io>
Co-committed-by: mattkaar <mattkaar@noreply.gitea.io>

templates/gitea/ingress.yaml

@@ -29,13 +29,14 @@ spec:
   {{- end }}
 {{- end }}
   rules:
-  {{- range .Values.ingress.hosts }}
-    - host: {{ . | quote }}
+    {{- range .Values.ingress.hosts }}
+    - host: {{ .host | quote }}
       http:
         paths:
-          - path: /
-            {{- if $.Capabilities.APIVersions.Has "networking.k8s.io/v1/Ingress" }}
-            pathType: Prefix
+          {{- range .paths }}
+          - path: {{ .path }}
+            {{- if and .pathType ($.Capabilities.APIVersions.Has "networking.k8s.io/v1/Ingress") }}
+            pathType: {{ .pathType }}
             {{- end }}
             backend:
             {{- if $.Capabilities.APIVersions.Has "networking.k8s.io/v1/Ingress" }}
@@ -47,5 +48,6 @@ spec:
               serviceName: {{ $fullName }}-http
               servicePort: {{ $httpPort }}
             {{- end }}
-  {{- end }}
+          {{- end }}
+    {{- end }}
 {{- end }}