Remove Ubuntu Trusty Support

OpenStack projects in general have stopped testing on Trusty
in Newton. The Ubuntu distribution is not implementing any
of the required distribution binaries that OpenStack depends
on for Newton and above on Trusty.

As a result of these factors, OpenStack-Ansible is dropping
Trusty support in Ocata.

Change-Id: I65801948506f5631689a6ef748dad26f13df3c12
Related-Bug: #1644349

deploy-guide/source/deploymenthost.rst

@@ -25,7 +25,6 @@ Install one of the following supported operating systems on the deployment
 hosts:
 
 * `Ubuntu server 16.04 (Xenial Xerus) LTS 64-bit <http://releases.ubuntu.com/16.04/>`_
-* `Ubuntu server 14.04 (Trusty Tahr) LTS 64-bit <http://releases.ubuntu.com/14.04/>`_
 
 Configure at least one network interface to access the Internet or suitable
 local repositories.

deploy-guide/source/overview-requirements.rst

@@ -11,16 +11,9 @@ Software requirements
 Ensure that all hosts within an OpenStack-Ansible (OSA) environment meet the
 following minimum requirements:
 
-* Ubuntu 16.04 LTS (Xenial Xerus) or Ubuntu 14.04 LTS (Trusty Tahr)
+* Ubuntu 16.04 LTS (Xenial Xerus)
 
-  * OpenStack-Ansible is tested regularly against the latest point releases of
-    Ubuntu 16.04 LTS and Ubuntu 14.04 LTS.
-  * Linux kernel version ``3.13.0-34-generic`` or later is required.
-  * For Trusty hosts, you must enable the ``trusty-backports`` or the
-    repositories in ``/etc/apt/sources.list`` or
-    ``/etc/apt/sources.list.d/``. For detailed instructions, see the
-    `Ubuntu documentation <https://help.ubuntu.com/community/
-    UbuntuBackports#Enabling_Backports_Manually>`_.
+* Linux kernel version ``3.13.0-34-generic`` or later is required.
 
 * Secure Shell (SSH) client and server that support public key
   authentication

deploy-guide/source/targethosts-prepare.rst

@@ -13,7 +13,6 @@ Install one of the following supported operating systems on the
 target host:
 
 * Ubuntu server 16.04 (Xenial Xerus) LTS 64-bit
-* Ubuntu server 14.04 (Trusty Tahr) LTS 64-bit
 
 Configure at least one network interface to access the Internet or
 suitable local repositories.

doc/source/developer-docs/installation-hosts-limited-connectivity.rst

@@ -54,9 +54,8 @@ packages. We advise mirroring the repositories that host these packages.
 
 Ubuntu repositories to mirror:
 
-- trusty
-- trusty-updates
-- trusty-backports
+- xenial
+- xenial-updates
 
 Galera-related repositories to mirror:
 

doc/source/developer-docs/scripts.rst

@@ -214,8 +214,8 @@ following jobs:
 * ``gate-openstack-ansible-linters-ubuntu-xenial``: This job executes
   the `Lint Tests`_.
 
-* ``gate-openstack-ansible-openstack-ansible-aio-ubuntu-trusty``: where
-  ``aio`` is the scenario, ``ubuntu`` is the distribution, and ``trusty``
+* ``gate-openstack-ansible-openstack-ansible-aio-ubuntu-xenial``: where
+  ``aio`` is the scenario, ``ubuntu`` is the distribution, and ``xenial``
   is the version of the distribution.
 
   The same test is executed against multiple distribution versions, and

playbooks/openstack-hosts-setup.yml

@@ -22,10 +22,9 @@
     - name: Check for a supported Operating System
       assert:
         that:
-          - ansible_distribution_release | lower == 'trusty' or
-            ansible_distribution_release | lower == 'xenial' or
-            "{{ ansible_os_family | lower }}-{{ ansible_distribution_major_version | lower }}" == "redhat-7"
-        msg: "The only supported platforms for this release are Ubuntu 14.04 LTS (Trusty), Ubuntu 16.04 LTS (Xenial) and CentOS 7 (WIP)"
+          - (ansible_distribution == 'Ubuntu' and ansible_distribution_release == 'xenial') or
+            (ansible_os_family == 'RedHat' and ansible_distribution_major_version == '7')
+        msg: "The only supported platforms for this release are Ubuntu 16.04 LTS (Xenial) and CentOS 7 (WIP)"
   roles:
     - role: "openstack_hosts"
   tags:

playbooks/roles/system_crontab_coordination/meta/main.yml

@@ -22,7 +22,7 @@ galaxy_info:
   platforms:
   - name: Ubuntu
     versions:
-    - trusty
+    - xenial
   categories:
     - cloud
     - openstack

tests/roles/bootstrap-host/tasks/check-requirements.yml

@@ -16,10 +16,9 @@
 - name: Check for a supported Operating System
   assert:
     that:
-      - ansible_distribution | lower == 'ubuntu'
-      - ansible_distribution_release | lower == 'trusty' or
-        ansible_distribution_release | lower == 'xenial'
-    msg: "The only supported platforms for this release are Ubuntu 14.04 LTS (Trusty) and Ubuntu 16.04 LTS (Xenial)"
+      - (ansible_distribution == 'Ubuntu' and ansible_distribution_release == 'xenial') or
+        (ansible_os_family == 'RedHat' and ansible_distribution_major_version == '7')
+    msg: "The only supported platforms for this release are Ubuntu 16.04 LTS (Xenial) and CentOS 7 (WIP)"
   tags:
     - check-operating-system
 

tests/roles/bootstrap-host/templates/user_variables.aio.yml.j2

@@ -83,7 +83,7 @@ repo_build_git_cache: {{ repo_build_git_cache }}
 
 # The container backing store is set to 'overlayfs' to speed up the
 # AIO build time.
-lxc_container_backing_store: "{{ ((ansible_kernel | version_compare('3.18.0-0-generic', '<')) or (ansible_distribution_release | lower == 'trusty')) | ternary('dir', 'overlayfs') }}"
+lxc_container_backing_store: "{{ (ansible_kernel | version_compare('3.18.0-0-generic', '<')) | ternary('dir', 'overlayfs') }}"
 
 ## Enable LBaaSv2 in the AIO
 neutron_plugin_base: