Add resource requests and limits for Drone

kubernetes/drone-server.yaml

@@ -42,6 +42,13 @@ spec:
           ports:
             - containerPort: 80
             - containerPort: 443
+          resources:
+            requests:
+              cpu: 50m
+              memory: 50Mi
+            limits:
+              cpu: 100m
+              memory: 100Mi
       volumes:
         - name: kosmos-drone-data
           persistentVolumeClaim: