---
# Copyright 2016, Rackspace US, Inc.
#
# 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: "Mitaka: Update neutron MTU for vlan, vxlan, and flat networks"
  hosts: galera_all[0]
  gather_facts: false
  user: root
  tasks:
    - name: Retrieve networks
      shell: |
        mysql -sNL \
              --unbuffered \
              -e "SELECT network_id, network_type, physical_network FROM ml2_network_segments WHERE network_type IN ('vlan','flat','vxlan','gre') AND network_id IN (select id from networks where mtu=0);" {{ neutron_galera_database | default('neutron') }} | tr "\t" "|"
      register: networks

    - name: "Mitaka: Create neutron MTU migration script"
      copy:
        content: |
          {% for item in networks.stdout_lines %}
          {% set network_mtu = [] %}
          {%-   for pn in provider_networks %}
          {%     if not network_mtu %}
          {%       if pn['network']['net_name'] is defined and
                      pn['network']['net_name'] == item.split('|')[-1] and
                      pn['network']['container_mtu'] is defined %}
          {%         if not network_mtu %}
          {%           if network_mtu.append(pn['network']['container_mtu']) %}{% endif %}
          {%         endif %}
          # Defined network mtu: {{ network_mtu }} {{ item.split('|')[-1] }}
          {%       endif %}
          {%     endif %}
          {%   endfor %}

          {%-  if neutron_network_device_mtu is defined and not network_mtu %}
          {%       if not network_mtu %}
          {%         if network_mtu.append(neutron_network_device_mtu) %}{% endif %}
          {%       endif %}
          # Global Defined network mtu: {{ network_mtu }} {{ item.split('|')[-1] }}
          {%  endif %}

          {%-   if not network_mtu %}
          {%     if item.split('|')[1] == 'vlan' or item.split('|')[1] == 'flat' %}
          {%       if not network_mtu %}
          {%         if network_mtu.append('1500') %}{% endif %}
          {%       endif %}
          # Using standard fallback MTU of 1500 for {{ item.split('|')[1] }} type network
          {%     elif item.split('|')[1] == 'gre' %}
          {%       if not network_mtu %}
          {%         if network_mtu.append('1476') %}{% endif %}
          {%       endif %}
          # Using gre fallback MTU of 1476 for {{ item.split('|')[1] }} type network
          {%     elif item.split('|')[1] == 'vxlan' or item.split('|')[1] == 'NULL' %}
          {%       if not network_mtu %}
          {%         if network_mtu.append('1450') %}{% endif %}
          {%       endif %}
          # Using vxlan fallback MTU of 1450 for {{ item.split('|')[1] }} type network
          {%     endif %}
          {%   endif %}

          {%-   if network_mtu %}
          mysql -sNL --unbuffered -e "UPDATE networks SET mtu={{ network_mtu[0] }} WHERE id='{{ item.split('|')[0] }}';" {{ neutron_galera_database | default('neutron') }}
          {%   endif %}
          {% endfor %}
        dest: /tmp/neutron-mtu-script.sh

    - name: "Mitaka: Run neutron MTU migration script"
      command: bash /tmp/neutron-mtu-script.sh