Add Gateway API HTTPRoute support to the Wiki.js Helm chart

dev/helm/README.md

@@ -112,6 +112,10 @@ The following table lists the configurable parameters of the Wiki.js chart and t
 | `ingress.annotations`                | Ingress annotations                         | `{}`                                                       |
 | `ingress.hosts`                      | List of ingress rules                        | `[{"host": "wiki.local", "paths": ["/"]}]`                |
 | `ingress.tls`                        | Ingress TLS configuration                   | `[]`                                                       |
+| `httpRoute.enabled`                  | Enable Gateway API HTTPRoute resource       | `false`                                                    |
+| `httpRoute.annotations`              | HTTPRoute annotations                       | `{}`                                                       |
+| `httpRoute.hostnames`                | Hostnames the route matches (empty = all)   | `[]`                                                       |
+| `httpRoute.parentRefs`               | Gateway(s) the route attaches to            | `[]`                                                       |
 | `sideload.enabled`                   | Enable sideloading of locale files from git | `false`                                                    |
 | `sideload.repoURL`                   | Git repository URL containing locale files  | `https://github.com/Requarks/wiki-localization`            |
 | `sideload.env`                       | Environment variables for the sideload container | `{}`                                                      |
@@ -212,6 +216,22 @@ See the [Configuration](#configuration) section to configure the PVC or to disab
 
 This chart provides support for Ingress resource. If you have an available Ingress Controller such as Nginx or Traefik you maybe want to set `ingress.enabled` to true and add `ingress.hosts` for the URL. Then, you should be able to access the installation using that address.
 
+## HTTPRoute (Gateway API)
+
+As an alternative to Ingress, the chart can expose Wiki.js through a [Gateway API](https://gateway-api.sigs.k8s.io/) `HTTPRoute`. Set `httpRoute.enabled` to true and provide at least one entry in `httpRoute.parentRefs` pointing to your `Gateway`:
+
+```yaml
+httpRoute:
+  enabled: true
+  parentRefs:
+    - name: my-gateway
+      namespace: gateway-system
+  hostnames:
+    - wiki.example.com
+```
+
+This requires the Gateway API CRDs and a Gateway controller to be installed in the cluster. The resource is disabled by default, so clusters without the Gateway API are unaffected.
+
 ## Extra Trusted Certificates
 
 To append extra CA Certificates:

dev/helm/templates/httproute.yaml

@@ -0,0 +1,29 @@
+{{- if .Values.httpRoute.enabled -}}
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: {{ include "wiki.fullname" . }}
+  labels:
+    {{- include "wiki.labels" . | nindent 4 }}
+  {{- with .Values.httpRoute.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- with .Values.httpRoute.hostnames }}
+  hostnames:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+  parentRefs:
+    {{- toYaml .Values.httpRoute.parentRefs | nindent 4 }}
+  rules:
+    - backendRefs:
+        - kind: Service
+          name: {{ include "wiki.fullname" . }}
+          port: {{ .Values.service.port }}
+          weight: 1
+      matches:
+        - path:
+            type: PathPrefix
+            value: /
+{{- end -}}

dev/helm/values.yaml

@@ -81,6 +81,24 @@ ingress:
   #    hosts:
   #      - chart-example.local
 
+# Gateway API HTTPRoute. Enable as an alternative to ingress when using a
+# Gateway controller. Disabled by default to avoid requiring the Gateway API
+# CRDs on clusters that don't have them installed.
+httpRoute:
+  enabled: false
+  # Annotations to add to the HTTPRoute resource
+  annotations: {}
+  # Hostnames the route matches. Leave empty to match every hostname
+  # attached to the parent Gateway listener.
+  hostnames: []
+    # - wiki.minikube.local
+  # References to the Gateway(s) this route attaches to. At least one is
+  # required when httpRoute.enabled is true.
+  parentRefs: []
+    # - name: my-gateway
+    #   namespace: gateway-system
+    #   sectionName: http
+
 resources: {}
   # We usually recommend not to specify default resources and to leave this as a conscious
   # choice for the user. This also increases chances charts run on environments with little