---
# Copyright 2017, 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 Kernel Version
  fail:
    msg: >
      Wrong kernel Version found
      [ {{ ansible_kernel }} < {{ openstack_host_required_kernel }} ]
      Resolve this issue before continuing.
  when: ansible_kernel | version_compare(openstack_host_required_kernel, '<')

- name: Disable cache for apt update for hosts
  copy:
    content: |
      Acquire::http::No-Cache true;
    dest: "/etc/apt/apt.conf.d/00apt-no-cache"
  tags:
    openstack_hosts-config
  when:
    - ansible_pkg_mgr == 'apt'
    - >
      global_environment_variables.http_proxy is defined or
      global_environment_variables.HTTP_PROXY is defined or
      global_environment_variables.https_proxy is defined or
      global_environment_variables.HTTPS_PROXY is defined

- name: Install distro packages for bare metal nodes
  package:
    name: "{{ openstack_host_metal_distro_packages }}"
    state: "{{ openstack_hosts_package_state }}"
  register: install_packages
  until: install_packages | success
  retries: 5
  delay: 2

- 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 fast if we can't load a module
  fail:
    msg: "{{ item.pattern }} is not set"
  with_items: "{{ openstack_host_specific_kernel_modules  }}"
  when:
    - item.pattern is defined
    - (modules.content | b64decode).find(item.pattern + ' is not set') != -1

- name: "Load kernel module(s)"
  modprobe:
    name: "{{ item.name }}"
  with_items: "{{ openstack_host_kernel_modules + openstack_host_specific_kernel_modules }}"
  when:
    - item.name != ''
    - item.pattern is undefined or (item.pattern is defined and (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 }}"

- name: Adding new system tuning
  sysctl:
    name: "{{ item.key }}"
    value: "{{ item.value }}"
    sysctl_set: "{{ item.set|default('yes') }}"
    state: "{{ item.state|default('present') }}"
    reload: no
  with_items: "{{ openstack_kernel_options + openstack_user_kernel_options }}"
  failed_when: false

- name: Configure sysstat
  include: openstack_sysstat.yml
  when: openstack_host_sysstat_enabled | bool