Use package module to install distro packages

Consolidate distro package install tasks into a
single task using the package module and pass
the package list into the name instead of using
a with_items loop.

The minimum Ansible version is raised to 2.2 due to a
known bug [1] in Ansible's apt module which does not
update the cache properly if the cache update and the
install are combined in a single task.

[1] ansible/ansible-modules-core#1497

Change-Id: Id00e704fd89f5dc40a143a9567c859ba78b76668
(cherry picked from commit f97d970)

meta/main.yml

@@ -18,7 +18,7 @@ galaxy_info:
   description: Installation and setup of cloudkitty
   company: Rackspace
   license: Apache2
-  min_ansible_version: 2.0
+  min_ansible_version: 2.2
   platforms:
     - name: Ubuntu
       versions:

tasks/cloudkitty_install.yml

@@ -15,17 +15,16 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-- include: cloudkitty_install_apt.yml
-  static: no
-  when: ansible_pkg_mgr == 'apt'
-  tags:
-    - cloudkitty-install
-
-- include: cloudkitty_install_yum.yml
-  static: no
-  when: ansible_pkg_mgr == 'yum'
-  tags:
-    - cloudkitty-install
+- name: Install distro packages
+  package:
+    pkg: "{{ cloudkitty_distro_packages }}"
+    state: "{{ cloudkitty_package_state }}"
+    update_cache: "{{ (ansible_pkg_mgr == 'apt') | ternary('yes', omit) }}"
+    cache_valid_time: "{{ (ansible_pkg_mgr == 'apt') | ternary(cache_timeout, omit) }}"
+  register: install_packages
+  until: install_packages|success
+  retries: 5
+  delay: 2
 
 - name: Create developer mode constraint file
   copy: