Fixed sudo access for jenkins user, fixed timer definitions in virtual stacks

Change-Id: I75fbfd6aa7ffff3ff7ab83a42850eb798c363a66
diff --git a/jenkins/slave/docker.yml b/jenkins/slave/docker.yml
index b134225..b1356f0 100644
--- a/jenkins/slave/docker.yml
+++ b/jenkins/slave/docker.yml
@@ -7,3 +7,10 @@
         jenkins:
           groups:
             - docker
+      sudo:
+        users:
+          jenkins:
+            hosts:
+            - ALL
+            commands:
+            - docker
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