---
# 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: Detect monitorstack host deployment group(s)
  hosts: "hosts:all_containers"
  gather_facts: false
  connection: local
  tasks:
    - name: Add hosts to dynamic inventory group
      group_by:
        key: monitorstack_deployment
        parents: monitorstack_all
      when:
        - inventory_hostanme in (
            (groups['nova_compute'] | default([])) |
            union(groups['utility_all'] | default([])) |
            union(groups['memcached_all'] | default([])) |
            union(groups['memcached_all'] | default([]))
          )
        - ansible_service_mgr == 'systemd'
  tags:
    - always

- name: Install MonitorStack
  hosts: monitorstack_all
  become: true
  gather_facts: true
  vars:
    haproxy_ssl: false
    monitorstack_distro_packages:
      ubuntu:
        - gcc
        - git
        - python-dev
        - pkg-config
      redhat:
        - gcc
        - git
        - python-devel
      suse:
        - gcc
        - git
        - python-devel
        - pkg-config

    monitorstack_config_enabled:
      - check: kvm
        options: ''
        condition: >-
          {{
            inventory_hostname in (groups['nova_compute'] | default([]))
          }}
      - check: memcache
        options: >-
          --host {{ (monitorstack_memcached_access.stdout_lines[0] | default("127.0.0.1:11211")).split(":")[0] }}
          --port {{ (monitorstack_memcached_access.stdout_lines[0] | default("127.0.0.1:11211")).split(":")[1] }}
        condition: >-
          {{
            inventory_hostname in (groups['memcached_all'] | default([]))
          }}
      - check: os_block_pools_totals
        options: ''
        condition: >-
          {{
            (clouds_config.stat.exists | bool) and
            (inventory_hostname in (groups['utility_all'] | default([]))) and
            (inventory_hostname == (groups['utility_all'] | default([null]))[0])
          }}
      - check: os_block_pools_usage
        options: ''
        condition: >-
          {{
            (clouds_config.stat.exists | bool) and
            (inventory_hostname in (groups['utility_all'] | default([]))) and
            (inventory_hostname == (groups['utility_all'] | default([null]))[0])
          }}
      - check: os_vm_quota_cores
        options: ''
        condition: >-
          {{
            (clouds_config.stat.exists | bool) and
            (inventory_hostname in (groups['utility_all'] | default([]))) and
            (inventory_hostname == (groups['utility_all'] | default([null]))[0])
          }}
      - check: os_vm_quota_instance
        options: ''
        condition: >-
          {{
            (clouds_config.stat.exists | bool) and
            (inventory_hostname in (groups['utility_all'] | default([]))) and
            (inventory_hostname == (groups['utility_all'] | default([null]))[0])
          }}
      - check: os_vm_quota_ram
        options: ''
        condition: >-
          {{
            (clouds_config.stat.exists | bool) and
            (inventory_hostname in (groups['utility_all'] | default([]))) and
            (inventory_hostname == (groups['utility_all'] | default([null]))[0])
          }}
      - check: os_vm_used_cores
        options: ''
        condition: >-
          {{
            (clouds_config.stat.exists | bool) and
            (inventory_hostname in (groups['utility_all'] | default([]))) and
            (inventory_hostname == (groups['utility_all'] | default([null]))[0])
          }}
      - check: os_vm_used_disk
        options: ''
        condition: >-
          {{
            (clouds_config.stat.exists | bool) and
            (inventory_hostname in (groups['utility_all'] | default([]))) and
            (inventory_hostname == (groups['utility_all'] | default([null]))[0])
          }}
      - check: os_vm_used_instance
        options: ''
        condition: >-
          {{
            (clouds_config.stat.exists | bool) and
            (inventory_hostname in (groups['utility_all'] | default([]))) and
            (inventory_hostname == (groups['utility_all'] | default([null]))[0])
          }}
      - check: os_vm_used_ram
        options: ''
        condition: >-
          {{
            (clouds_config.stat.exists | bool) and
            (inventory_hostname in (groups['utility_all'] | default([]))) and
            (inventory_hostname == (groups['utility_all'] | default([null]))[0])
          }}
      - check: uptime
        options: ''
        condition: true
  vars_files:
    - vars/variables.yml

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

  roles:
    - role: elastic_data_hosts

  post_tasks:
    - name: Find clouds config
      stat:
        path: "{{ ansible_env.HOME }}/.config/openstack/clouds.yaml"
      register: clouds_config

    - name: Find openstack release
      stat:
        path: "/etc/openstack-release"
      register: openstack_release

    - name: Find osp release
      stat:
        path: "/etc/rhosp-release"
      register: rhosp_release

    - name: MonitorStack block
      when:
        - (openstack_release.stat.exists | bool) or
          (rhosp_release.stat.exists | bool)
      block:
        - name: Ensure disto packages are installed
          package:
            name: "{{ monitorstack_distro_packages[(ansible_distribution | lower)] }}"
            state: "{{ monitorstack_package_state | default('present') }}"
            update_cache: "{{ (ansible_pkg_mgr == 'apt') | ternary('yes', omit) }}"

        - name: Refresh local facts
          setup:
            filter: ansible_local
            gather_subset: "!all"
          tags:
            - always

        - name: create the system group
          group:
            name: "monitorstack"
            state: "present"
            system: "yes"

        - name: Create the monitorstack system user
          user:
            name: "monitorstack"
            group: "monitorstack"
            comment: "monitorstack user"
            shell: "/bin/false"
            createhome: "yes"
            home: "/var/lib/monitorstack"

        - name: Create monitorstack data path
          file:
            path: "{{ item }}"
            state: directory
            owner: "monitorstack"
            group: "monitorstack"
            mode: "0750"
            recurse: true
          with_items:
            - "/var/lib/monitorstack"
            - "/var/lib/monitorstack/.config"
            - "/var/lib/monitorstack/.config/openstack"
            - "/var/lib/monitorstack/venv"
            - "/var/log/monitorstack"
            - "/etc/monitorstack"

        - name: Copy the clouds config into monitorstack
          copy:
            src: "{{ ansible_env.HOME }}/.config/openstack/clouds.yaml"
            dest: "/var/lib/monitorstack/.config/openstack/clouds.yaml"
            remote_src: yes
          when:
            - clouds_config.stat.exists | bool

        - name: Create the virtualenv (if it does not exist)
          command: "virtualenv --no-setuptools --system-site-packages /var/lib/monitorstack/venv"
          args:
            creates: "/var/lib/monitorstack/venv/bin/activate"

        - name: Setup venv
          pip:
            name:
              - pip
              - setuptools
            virtualenv_site_packages: yes
            extra_args: "-U"
            virtualenv: "/var/lib/monitorstack/venv"

        - name: Ensure monitorstack is installed
          pip:
            name: "git+https://github.com/openstack/monitorstack@{{ monitorstack_release | default('master') }}"
            state: "{{ monitorstack_package_state | default('present') }}"
            extra_args: --isolated
            virtualenv: /var/lib/monitorstack/venv
          register: _pip_task
          until: _pip_task is success
          retries: 3
          delay: 2
          tags:
            - package_install

        - name: Create montiorstack config
          copy:
            dest: "/etc/monitorstack/monitorstack.ini"
            content: |
              [elasticsearch]
              hosts = {{ elasticsearch_data_hosts | join(',') }}
              port = {{ elastic_port }}

        - name: Run memcached port scan
          shell: "ss -ntlp | awk '/11211/ {print $4}'"
          register: monitorstack_memcached_access
          changed_when: false

        - name: Run the systemd service role
          include_role:
            name: systemd_service
          vars:
            systemd_user_name: monitorstack
            systemd_group_name: monitorstack
            systemd_services: |-
              {% set services = [] %}
              {% for item in monitorstack_config_enabled %}
              {%   if item.condition | bool %}
              {%
                 set check = {
                   "service_name": ("monitorstack-" ~ item.check),
                   "execstarts": ("/var/lib/monitorstack/venv/bin/monitorstack --format elasticsearch --config-file /etc/monitorstack/monitorstack.ini " ~ item.check ~ ' ' ~ item.options),
                   "timer": {
                     "state": "started",
                     "options": {
                       "OnBootSec": "5min",
                       "OnUnitActiveSec": "10m",
                       "Persistent": true
                     }
                   }
                 }
              %}
              {%     set _ = services.append(check) %}
              {%   endif %}
              {% endfor %}
              {{ services }}

  tags:
    - beat-install