diff --git a/library/common/_docs/values/portal.md b/library/common/_docs/values/portal.md
new file mode 100644
index 0000000000..36d89b5aef
--- /dev/null
+++ b/library/common/_docs/values/portal.md
@@ -0,0 +1,88 @@
+# Portal
+
+## key: portal
+
+- type: `dict`
+- Default:
+
+  ```yaml
+  portal:
+    enabled: true
+  ```
+
+- Helm Template: ✅ (Except on the `enabled` key)
+
+Enables configMap generation for portal. You can also apply overrides for each setting.
+(`port`, `host`, `path`, `protocol`), instead of the automatic generation.
+Apart from `path` the rest should not be need to be overridden.
+
+For each service/port combo there is an entry in the configMap.
+
+Assume a service like this
+
+```yaml
+service:
+  srvName:
+    enabled: true
+    ports:
+      portName:
+        port: 10000
+        protocol: HTTP
+```
+
+ConfigMap will look like this:
+
+```yaml
+data:
+  host-srvName-portName: $node_ip
+  port-srvName-portName: 10000
+  path-srvName-portName: /
+  protocol-srvName-portName: http
+```
+
+If you wanted to change the path, you would do:
+
+```yaml
+portal:
+  srvName:
+    portName:
+      path: /different_path
+```
+
+In questions.yaml, you would use it like that:
+
+```yaml
+portals:
+  open:
+    protocols:
+      - "$kubernetes-resource_configmap_portal_protocol-srvName-portName"
+    host:
+      - "$kubernetes-resource_configmap_portal_host-srvName-portName"
+    ports:
+      - "$kubernetes-resource_configmap_portal_port-srvName-portName"
+    path:
+      - "$kubernetes-resource_configmap_portal_path-srvName-portName"
+```
+
+Available options on `portal`:
+
+```yaml
+portal:
+  srvName:
+    portName:
+      host: 10.10.10.100 # or truenas.localdomain
+      port: 10000
+      path: /somepath
+      protocol: https
+    otherPortName:
+      host: 10.10.10.100 # or truenas.localdomain
+      port: 10002
+      path: /somepath
+      protocol: https
+  otherSrvName:
+    otherPortName:
+      host: 10.10.10.100 # or truenas.localdomain
+      port: 10001
+      path: /somepath
+      protocol: http
+```