added sonarqube drone pipeline

.drone.yaml

@@ -25,6 +25,22 @@ steps:
     force: true
     ssh_key:
       from_secret: id_rsa
+trigger:
+  branch:
+  - master
+  event:
+  - push
+---
+kind: pipeline
+type: kubernetes
+name: sonarqube
+steps:
+- name: sonar scanner
+  image: sonarsource/sonar-scanner-cli
+  environment:
+    SONAR_HOST_URL: https://sonarqube.broodjeaap.net
+    SONAR_LOGIN:
+      from_secret: sonarqube_token
 trigger:
   branch:
   - master