[rally] switch all jobs to xenial and unblock gates

Change-Id: I8d6f374a1d4d6cb2d3e6fdf8169763c450b037dd

jenkins/jobs/rally.yaml

@@ -395,7 +395,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-ironic-{name}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -462,7 +462,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-murano-{name}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -484,7 +484,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-mistral-{name}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -505,7 +505,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-cue-{broker}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -525,7 +525,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-designate-{name}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -546,7 +546,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-{name}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -631,7 +631,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-neutron-existing-users-{name}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -660,7 +660,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-fakevirt-{name}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -689,7 +689,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-zaqar-{name}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -717,7 +717,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-rally-{service}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -745,7 +745,7 @@
 
 - job-template:
     name: 'gate-{name}-integrate-dsvm-rally'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -763,7 +763,7 @@
 
 - job:
     name: 'gate-rally-dsvm-cli'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -856,7 +856,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-verify-{job-mode}-{ctx-mode}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -1008,7 +1008,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-monasca-{name}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -1026,7 +1026,7 @@
 
 - job:
     name: 'gate-rally-dsvm-keystone-v2api-rally'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -1054,7 +1054,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-senlin-{name}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -1083,7 +1083,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-watcher-{name}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout:
@@ -1112,7 +1112,7 @@
 
 - job-template:
     name: 'gate-rally-dsvm-magnum-{name}{job-suffix}'
-    node: ubuntu-trusty
+    node: ubuntu-xenial
 
     wrappers:
       - build-timeout: