Add aodh-api init removal upgrade docs and script

Please see I19e5f4e4b354edf6f4f5e51e9b9066a284a3e7ef

Depends-On: I19e5f4e4b354edf6f4f5e51e9b9066a284a3e7ef
Change-Id: I65cfe7335ebce52bfb668dbf7c605f0f323b0663

doc/source/upgrade-guide/manual-upgrade.rst

@@ -206,6 +206,15 @@ See :ref:`memcached-flush` for details.
 
     # openstack-ansible "${UPGRADE_PLAYBOOKS}/memcached-flush.yml"
 
+Stop and remove ``aodh-api`` service
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+See :ref:`aodh-api-init-delete` for details.
+
+.. code-block:: console
+
+    # openstack-ansible "${UPGRADE_PLAYBOOKS}/aodh-api-init-delete.yml"
+
 Upgrade OpenStack
 ~~~~~~~~~~~~~~~~~
 

doc/source/upgrade-guide/reference-upgrade-playbooks.rst

@@ -112,6 +112,17 @@ current version of MariaDB and Galera and upgrade to the 10.x series.
 
 Sends "flush_all" to memcached with the help of nc.
 
+.. _aodh-api-init-delete:
+
+``aodh-api-init-delete.yml``
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Stops the ``aodh-api`` service and removes the init file since ``aodh-api``
+now runs under Apache ``mod_wsgi``.
+Run the ``os-aodh-install.yml`` playbook during the OpenStack services upgrade
+to ensure ``aodh-api`` is available after running ``aodh-api-init-delete.yml``.
+
+
 --------------
 
 .. include:: navigation.txt

scripts/run-upgrade.sh

@@ -164,6 +164,7 @@ function main {
         RUN_TASKS+=("utility-install.yml")
         RUN_TASKS+=("rsyslog-install.yml")
         RUN_TASKS+=("${UPGRADE_PLAYBOOKS}/memcached-flush.yml")
+        RUN_TASKS+=("${UPGRADE_PLAYBOOKS}/aodh-api-init-delete.yml")
         RUN_TASKS+=("setup-openstack.yml")
         # Run the tasks in order
         for item in ${!RUN_TASKS[@]}; do

scripts/upgrade-utilities/playbooks/aodh-api-init-delete.yml

@@ -0,0 +1,47 @@
+---
+# Copyright 2016, Logan Vig <logan2211@gmail.com>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+- name: Delete aodh-api init file
+  hosts: aodh_all
+  gather_facts: false
+  user: root
+  pre_tasks:
+    - name: Check init system
+      command: cat /proc/1/comm
+      register: _pid1_name
+    - name: Set the name of pid1
+      set_fact:
+        pid1_name: "{{ _pid1_name.stdout }}"
+  tasks:
+    - name: Stop the aodh-api service
+      service:
+        name: aodh-api
+        state: stopped
+        enabled: no
+    - name: Remove the aodh-api upstart init file
+      file:
+        path: '/etc/init/aodh-api.conf'
+        state: absent
+      when: pid1_name == "init"
+    - name: Reload upstart init scripts
+      command: initctl reload-configuration
+      when: pid1_name == "init"
+    - name: Remove the aodh-api systemd init file
+      file:
+        path: '/etc/systemd/system/aodh-api.service'
+      when: pid1_name == "systemd"
+    - name: Reload systemd
+      command: systemctl daemon-reload
+      when: pid1_name == "systemd"