---
# 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 witing, 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: Deploy PXE Host Setup
  hosts: pxe_hosts
  gather_facts: "{{ gather_facts | default(true) }}"
  pre_tasks:
    - name: Gather variables for each operating system
      include_vars: "{{ item }}"
      with_first_found:
        - "{{ playbook_dir }}/vars/{{ ansible_distribution | lower }}-{{ ansible_distribution_version | lower }}.yml"
        - "{{ playbook_dir }}/vars/{{ ansible_distribution | lower }}-{{ ansible_distribution_major_version | lower }}.yml"
        - "{{ playbook_dir }}/vars/{{ ansible_os_family | lower }}-{{ ansible_distribution_major_version | lower }}.yml"
        - "{{ playbook_dir }}/vars/{{ ansible_distribution | lower }}.yml"
        - "{{ playbook_dir }}/vars/{{ ansible_os_family | lower }}.yml"
      tags:
        - always

    - name: Install host distro packages
      package:
        pkg: "{{ item }}"
        state: "latest"
        update_cache: yes
        cache_valid_time: 600
      with_items: "{{ default_host_distro_packages }}"

  tasks:
    - name: Ensure root has a .ssh directory
      file:
        path: /root/.ssh
        state: directory
        owner: root
        group: root
        mode: 0700

    - name: Create ssh key pair for root
      user:
        name: root
        generate_ssh_key: yes
        ssh_key_bits: 2048
        ssh_key_file: /root/.ssh/id_rsa

    - name: Get root public key
      command: cat /root/.ssh/id_rsa.pub
      register: public_key_get
      changed_when: false

    - name: Set key facts
      set_fact:
        root_public_key: "{{ public_key_get.stdout }}"

    - name: Ensure root can ssh to localhost
      authorized_key:
        user: "root"
        key: "{{ root_public_key }}"

    - name: Add sysctl options
      sysctl:
        name: net.ipv4.ip_forward
        value: 1
        sysctl_set: yes
        state: present
        reload: yes
        sysctl_file: /etc/sysctl.conf

    - name: Start netfilter persistent
      systemd:
        name: "{{ default_host_iptables_service }}"
        state: started
        enabled: yes

    - name: Install repo caching server packages
      package:
        name: "{{ item }}"
        state: "latest"
      with_items: "{{ default_pkg_cache_server_distro_packages }}"

    - name: Create cache directory
      file:
        path: "/var/www/pkg-cache"
        state: "directory"
        owner: "apt-cacher-ng"
        group: "www-data"
        mode: "02775"

    - name: Stat the cache path
      stat:
        path: /var/cache/apt-cacher-ng
      register: acs

    - name: Remove cacher directory if its a directory
      file:
        path: "/var/cache/apt-cacher-ng"
        state: "absent"
      when:
        - acs.stat.isdir is defined and acs.stat.isdir

    - name: Link cacher to the repo path
      file:
        src: "/var/www/pkg-cache"
        dest: "/var/cache/apt-cacher-ng"
        state: "link"

    - name: create yum merged mirror list
      shell: |
        curl https://www.centos.org/download/full-mirrorlist.csv | sed 's/^.*"http:/http:/' | sed 's/".*$//' | grep ^http >/etc/apt-cacher-ng/centos_mirrors
        echo "http://mirror.centos.org/centos/" >>/etc/apt-cacher-ng/centos_mirrors

    - name: Drop acng.conf
      template:
        src: "templates/pxe/acng.conf.j2"
        dest: "/etc/apt-cacher-ng/acng.conf"
      notify:
        - reload acng

    - name: Drop apt package manager proxy
      copy:
        content: 'Acquire::http { Proxy "{{ default_mirror_proxy }}"; };'
        dest: "/etc/apt/apt.conf.d/00apt-cacher-proxy"

    - name: Update apt when proxy is added
      apt:
        update_cache: yes

  environment: "{{ deployment_environment_variables | default({}) }}"

  handlers:
    - name: reload acng
      service:
        name: "apt-cacher-ng"
        state: restarted
        enabled: yes

  tags:
    - setup-host