---
# Copyright 2014, 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: check how kernel modules are implemented (statically builtin, dynamic, not set)
  slurp:
    src: "/boot/config-{{ ansible_kernel }}"
  register: modules
  when: openstack_host_specific_kernel_modules | length > 0

- name: fail if a specific kernel module is not set
  fail:
    msg: "{{ item.pattern }} is not set"
  with_items: "{{ openstack_host_specific_kernel_modules }}"
  when:
    - groups[item.group] is defined
    - inventory_hostname in groups[item.group]
    - (modules.content | b64decode).find(item.pattern + ' is not set') != -1

- name: fail if a specific pattern is not valid
  fail:
    msg: "{{ item.pattern }} is not a valid pattern"
  with_items: "{{ openstack_host_specific_kernel_modules }}"
  when:
    - groups[item.group] is defined
    - inventory_hostname in groups[item.group]
    - (modules.content | b64decode).find(item.pattern + '=y') == -1
    - (modules.content | b64decode).find(item.pattern + '=m') == -1

- name: "Ensure kernel module(s)"
  modprobe:
    name: "{{ item }}"
  with_items: "{{ openstack_host_kernel_modules }}"
  when:
    - openstack_host_kernel_modules | length > 0
    - item != ''

- name: "Ensure dynamic specific kernel module(s) are loaded"
  modprobe:
    name: "{{ item.name }}"
  with_items: "{{ openstack_host_specific_kernel_modules }}"
  when:
    - groups[item.group] is defined
    - inventory_hostname in groups[item.group]
    - (modules.content | b64decode).find(item.pattern + '=m') != -1

- name: Write list of modules to load at boot
  template:
    src: modprobe.conf.j2
    dest: "{{ openstask_host_module_file }}"