Add SonarQube Scanner tool installation demo

demos/sonarqube/README.md

@@ -17,6 +17,16 @@ credentials:
             secret: "secret value"
             description: "Sonar token"
 
+tool:
+  sonarRunnerInstallation:
+    installations:
+      - name: "SonarQube Scanner"
+        properties:
+          - installSource:
+              installers:
+                - sonarRunnerInstaller:
+                    id: "7.3.0.5189"
+
 unclassified:
   sonarglobalconfiguration:                  # mandatory
     buildWrapperEnabled: true
@@ -36,4 +46,6 @@ unclassified:
 
 ## notes
 
-You can add multiple installations.
+- You can add multiple SonarQube server installations
+- `tool:sonarRunnerInstallation` installs the SonarQube Scanner tool
+- The `id` in sonarRunnerInstaller refers to the scanner version to install

demos/sonarqube/sonar-with-scanner.yaml

@@ -0,0 +1,31 @@
+---
+# SonarQube Plugin Configuration with Scanner Tool Installation
+
+credentials:
+  system:
+    domainCredentials:
+      - credentials:
+        - string:
+            scope: GLOBAL
+            id: "sonarqube-token"
+            secret: "${SONAR_TOKEN}"
+            description: "SonarQube Access Token"
+
+tool:
+  sonarRunnerInstallation:
+    installations:
+      - name: "SonarQube Scanner"
+        properties:
+          - installSource:
+              installers:
+                - sonarRunnerInstaller:
+                    id: "7.3.0.5189"
+
+unclassified:
+  sonarglobalconfiguration:
+    buildWrapperEnabled: true
+    installations:
+      - name: "sq1"
+        serverUrl: "http://sonarqube:9000"
+        credentialsId: "sonarqube-token"
+