Update versions used in integration tests

- Fedora 29 ships with py37
- Bump from Xenial to Bionic with py36
- Bump Ansible 2.5.9 to 2.5.15
- Bump Ansible 2.6.5 to 2.6.12
- Bump Ansible 2.7.0 to 2.7.6

Change-Id: I43dbda275aff62c4e8a2ba935ae16d6797121816

README.rst

@@ -118,13 +118,13 @@ regressions. Here's our current testing coverage:
 +-----------------+--------+--------+----------+--------+--------+
 | -               | Fedora | CentOS | OpenSUSE | Debian | Ubuntu |
 +=================+========+========+==========+========+========+
-| Ansible 2.5.9   |        |  py27  |          |        |        |
+| Ansible 2.5.14  |        |  py27  |          |        |        |
 +-----------------+--------+--------+----------+--------+--------+
-| Ansible 2.6.5   |        |        |          |  py27  |        |
+| Ansible 2.6.12  |        |        |          |  py27  |        |
 +-----------------+--------+--------+----------+--------+--------+
-| Ansible 2.7.0   |  py35  |        |   py27   |        |  py35  |
+| Ansible 2.7.6   |  py37  |        |   py27   |        |  py36  |
 +-----------------+--------+--------+----------+--------+--------+
-| Ansible "devel" |  py35  |        |          |        |  py35  |
+| Ansible "devel" |  py37  |        |          |        |  py36  |
 +-----------------+--------+--------+----------+--------+--------+
 
 You might also be interested in reading the project manifesto_ in order to have

zuul.d/jobs.yaml

@@ -6,57 +6,57 @@
     timeout: 900
 
 - job:
-    name: ara-integration-debian-py27-2.6.5
+    name: ara-integration-debian-py27-2.6.12
     parent: ara-integration-base
     vars:
       python_test_version: py27
-      ansible_test_version: 2.6.5
+      ansible_test_version: 2.6.12
     nodeset: debian-stable
 
 - job:
-    name: ara-integration-centos-py27-2.5.9
+    name: ara-integration-centos-py27-2.5.14
     parent: ara-integration-base
     vars:
       python_test_version: py27
-      ansible_test_version: 2.5.9
+      ansible_test_version: 2.5.14
     nodeset: centos-7
 
 - job:
-    name: ara-integration-opensuse-py27-2.7.0
+    name: ara-integration-opensuse-py27-2.7.6
     parent: ara-integration-base
     vars:
       python_test_version: py27
-      ansible_test_version: 2.7.0
+      ansible_test_version: 2.7.6
     nodeset: opensuse-423
 
 - job:
-    name: ara-integration-ubuntu-py35-2.7.0
-    parent: ara-integration-base
-    vars:
-      python_test_version: py35
-      ansible_test_version: 2.7.0
-    nodeset: ubuntu-xenial
-
-- job:
-    name: ara-integration-ubuntu-py35-devel
-    parent: ara-integration-base
-    vars:
-      python_test_version: py35
-      ansible_test_version: devel
-    nodeset: ubuntu-xenial
-
-- job:
-    name: ara-integration-fedora-py36-2.7.0
+    name: ara-integration-ubuntu-py36-2.7.6
     parent: ara-integration-base
     vars:
       python_test_version: py36
-      ansible_test_version: 2.7.0
-    nodeset: fedora-latest
+      ansible_test_version: 2.7.6
+    nodeset: ubuntu-bionic
 
 - job:
-    name: ara-integration-fedora-py36-devel
+    name: ara-integration-ubuntu-py36-devel
     parent: ara-integration-base
     vars:
       python_test_version: py36
       ansible_test_version: devel
+    nodeset: ubuntu-bionic
+
+- job:
+    name: ara-integration-fedora-py37-2.7.6
+    parent: ara-integration-base
+    vars:
+      python_test_version: py37
+      ansible_test_version: 2.7.6
+    nodeset: fedora-latest
+
+- job:
+    name: ara-integration-fedora-py37-devel
+    parent: ara-integration-base
+    vars:
+      python_test_version: py37
+      ansible_test_version: devel
     nodeset: fedora-latest

zuul.d/layout.yaml

@@ -3,21 +3,21 @@
       rtd_webhook_id: '46259'
     check:
       jobs:
-        - ara-integration-debian-py27-2.6.5
-        - ara-integration-centos-py27-2.5.9
-        - ara-integration-opensuse-py27-2.7.0
-        - ara-integration-ubuntu-py35-2.7.0
-        - ara-integration-ubuntu-py35-devel:
+        - ara-integration-debian-py27-2.6.12
+        - ara-integration-centos-py27-2.5.14
+        - ara-integration-opensuse-py27-2.7.6
+        - ara-integration-ubuntu-py36-2.7.6
+        - ara-integration-ubuntu-py36-devel:
             voting: false
-        - ara-integration-fedora-py36-2.7.0
-        - ara-integration-fedora-py36-devel:
+        - ara-integration-fedora-py37-2.7.6
+        - ara-integration-fedora-py37-devel:
             voting: false
         - openstack-tox-py37
     gate:
       jobs:
-        - ara-integration-debian-py27-2.6.5
-        - ara-integration-centos-py27-2.5.9
-        - ara-integration-opensuse-py27-2.7.0
-        - ara-integration-ubuntu-py35-2.7.0
-        - ara-integration-fedora-py36-2.7.0
-        - openstack-tox-py37
+        - ara-integration-debian-py27-2.6.12
+        - ara-integration-centos-py27-2.5.14
+        - ara-integration-opensuse-py27-2.7.6
+        - ara-integration-ubuntu-py36-2.7.6
+        - ara-integration-fedora-py37-2.7.6
+        - openstack-tox-py37