feat: add default backend for ingress (#215)

* feat: add default backend for ingress

Signed-off-by: Mark Phelps <[email protected]>

* chore: use default dict

Signed-off-by: Mark Phelps <[email protected]>

---------

Signed-off-by: Mark Phelps <[email protected]>

Author: markphelps

README.md

@@ -59,6 +59,48 @@ You can also override the default config values with environment variables via t
 
 Note the values must be still be named as `FLIPT_<CONFIG_KEY>` per the [documentation](https://flipt.io/docs/configuration#environment-variables).
 
+### Ingress Configuration
+
+The chart supports ingress configuration with automatic generation of the required configuration. To enable the ingress controller, set `ingress.enabled=true` in your values file:
+
+```yaml
+flipt:
+  ingress:
+    enabled: true
+    className: nginx  # optional: only if you're using a specific ingress class
+    hosts:
+      - host: flipt.example.com
+        paths:
+          - path: /
+            pathType: Prefix
+```
+
+For more advanced configurations, such as TLS and custom annotations:
+
+```yaml
+flipt:
+  ingress:
+    enabled: true
+    className: nginx
+    annotations:
+      cert-manager.io/cluster-issuer: "letsencrypt-prod"
+    hosts:
+      - host: flipt.example.com
+        paths:
+          - path: /
+            pathType: Prefix
+            # backend configuration is optional and will default to:
+            # backend:
+            #   servicePort: http
+            #   serviceName: <release-name>-flipt
+    tls:
+      - hosts:
+          - flipt.example.com
+        secretName: flipt-tls
+```
+
+The backend service configuration is optional. If not specified, the chart will automatically use the correct service name and port.
+
 ### YAML
 
 You can also configure this chart using YAML. See the [values.yaml](charts/flipt/values.yaml) file for the default values under `flipt.config`.

charts/flipt/Chart.yaml

@@ -3,7 +3,7 @@ name: flipt
 home: https://flipt.io
 description: Flipt is an open-source, self-hosted feature flag solution.
 type: application
-version: 0.81.0
+version: 0.82.0
 appVersion: v1.56.0
 maintainers:
   - name: Flipt

charts/flipt/README.md

@@ -1,5 +1,5 @@
 # Flipt Helm Chart
 
-This chart is still a work in progress.
-
 Please [create an issue](https://github.com/flipt-io/helm-charts/issues/new?labels=helm) or submit a pull request for any issues or missing features.
+
+See the [README](https://github.com/flipt-io/helm-charts/blob/main/README.md) and [values.yaml](https://github.com/flipt-io/helm-charts/blob/main/charts/flipt/values.yaml) for more information.

charts/flipt/templates/ingress.yaml

@@ -49,12 +49,16 @@ spec:
             backend:
               {{- if semverCompare ">=1.19-0" $.Capabilities.KubeVersion.GitVersion }}
               service:
-                name: {{ default $fullName .backend.serviceName }}
+                name: {{ default $fullName ((default dict .backend).serviceName) }}
                 port:
-                  name: {{  .backend.servicePort }}
+                  {{- if (default dict .backend).servicePort }}
+                  name: {{ (default dict .backend).servicePort }}
+                  {{- else }}
+                  name: http
+                  {{- end }}
               {{- else }}
-              serviceName: {{ default $fullName .backend.serviceName }}
-              servicePort: {{ .backend.servicePort }}
+              serviceName: {{ default $fullName ((default dict .backend).serviceName) }}
+              servicePort: {{ default "http" ((default dict .backend).servicePort) }}
               {{- end }}
           {{- end }}
     {{- end }}

charts/flipt/values.yaml

@@ -85,6 +85,11 @@ ingress:
       paths:
         - path: /
           pathType: ImplementationSpecific
+          # backend configuration is optional
+          # if not specified, defaults to:
+          # backend:
+          #   servicePort: http
+          #   serviceName: <chart-fullname>
           backend:
             servicePort: http
             serviceName: ""