Add docs for specifying Selenium Grid URL securely (#959)

* Add docs for specifying Selenium Grid URL securely Signed-off-by: JD Harrington <[email protected]> * Match standard formatting for Authentication Parameters Signed-off-by: JD Harrington <[email protected]> Signed-off-by: JD Harrington <[email protected]>
kedacore · Oct 18, 2022 · c4cde3a · c4cde3a
1 parent e722739
commit c4cde3a
Showing 1 changed file with 47 additions and 1 deletion.
diff --git a/content/docs/2.9/scalers/selenium-grid-scaler.md b/content/docs/2.9/scalers/selenium-grid-scaler.md
@@ -18,7 +18,7 @@ The below is an example trigger configuration for chrome node.
 triggers:
   - type: selenium-grid
     metadata:
-      url: 'http://selenium-hub:4444/graphql' # Required
+      url: 'http://selenium-hub:4444/graphql' # Required. Can be ommitted if specified via TriggerAuthentication/ClusterTriggerAuthentication.
       browserName: 'chrome'  # Required
       browserVersion: '91.0' # Optional. Only required when supporting multiple versions of browser in your Selenium Grid.
       unsafeSsl : 'true' # Optional
@@ -143,3 +143,49 @@ spec:
         browserName: 'chrome'
         browserVersion: '90.0'
 ```
+
+### Authentication Parameters
+
+It is possible to specify the Graphql url of your Selenium Grid using authentication parameters. This useful if you have enabled Selenium Grid's Basic HTTP Authentication and would like to keep your credentials secure.
+
+- `url` - Graphql url of your Selenium Grid. Refer to the Selenium Grid's documentation [here](https://www.selenium.dev/documentation/en/grid/grid_4/graphql_support/) for more info.
+
+```yaml
+apiVersion: v1
+kind: Secret
+metadata:
+  name: selenium-grid-secret
+  namespace: keda
+type: Opaque
+data:
+  graphql-url: base64 encoded value of GraphQL URL
+---
+apiVersion: keda.sh/v1alpha1
+kind: TriggerAuthentication
+metadata:
+  name: keda-trigger-auth-selenium-grid-secret
+  namespace: keda
+spec:
+  secretTargetRef:
+  - parameter: url
+    name: selenium-grid-secret
+    key: graphql-url
+---
+apiVersion: keda.sh/v1alpha1
+kind: ScaledObject
+metadata:
+  name: selenium-grid-chrome-scaledobject
+  namespace: keda
+  labels:
+    deploymentName: selenium-chrome-node
+spec:
+  maxReplicaCount: 8
+  scaleTargetRef:
+    name: selenium-chrome-node
+  triggers:
+    - type: selenium-grid
+      metadata:
+        browserName: 'chrome'
+      authenticationRef:
+        name: keda-trigger-auth-selenium-grid-secret
+```