iiab/roles/mongodb/tasks/install.yml

# 1. INSTALL MongoDB PACKAGES OR BINARIES

- name: "Install packages: mongodb, mongodb-server (not rpi)"
  package:
    name:
      - mongodb-server
      - mongodb    # 2019-01-31: this package does not exist on (cannot be installed on) Debian 10, SEE #1437
    state: present
  when: internet_available and not is_rpi
  tags:
    - download

# 2019-02-02: Sugarizer with Node.js 10.x requires MongoDB 2.6+ so
# https://andyfelong.com/2017/08/mongodb-3-0-14-for-raspbian-stretch/
# is being used on RPi, all I found! (Raspbian's apt pkg is MongoDB 2.4.14)
#
# mongodb_stretch_3_0_14_core.zip (20M) & mongodb_stretch_3_0_14_tools.zip (15M)
# were backed up from andyfelong.com to http://download.iiab.io/packages/
#
# CLARIF: mongodb_stretch_3_0_14_core.zip IS IN FACT 3.0.14 (core) BUT...
#         mongodb_stretch_3_0_14_tools.zip IS REALLY 3.0.15 (tools)

- name: Create dir /tmp/mongodb-3.0.1x (rpi)
  file:
    path: /tmp/mongodb-3.0.1x
    state: directory
  when: internet_available and is_rpi

- name: Download & unzip 20MB http://download.iiab.io/packages/mongodb_stretch_3_0_14_core.zip to /tmp/mongodb-3.0.1x (rpi)
  unarchive:
    remote_src: yes
    src: "{{ iiab_download_url }}/mongodb_stretch_3_0_14_core.zip"
    dest: /tmp/mongodb-3.0.1x
  when: internet_available and is_rpi

- name: Install (move) its 3 CORE binaries from /tmp/mongodb-3.0.1x/core to /usr/bin (rpi)
  shell: mv /tmp/mongodb-3.0.1x/core/* /usr/bin
  when: internet_available and is_rpi

- name: Download & unzip 15MB http://download.iiab.io/packages/mongodb_stretch_3_0_14_tools.zip [IN FACT THIS ONE'S 3.0.15] to /tmp/mongodb-3.0.1x (rpi)
  unarchive:
    remote_src: yes
    src: "{{ iiab_download_url }}/mongodb_stretch_3_0_14_tools.zip"
    dest: /tmp/mongodb-3.0.1x
  when: internet_available and is_rpi

- name: Install (move) its 9 TOOLS binaries from /opt/iiab/downloads/mongodb-3.0.1x/tools to /usr/bin (rpi)
  shell: mv /tmp/mongodb-3.0.1x/tools/* /usr/bin
  when: internet_available and is_rpi

# OLD WAY / MUCH SLOWER: had put unnec duplicate copies in /opt/iiab/downloads/mongodb-3.0.1x
#
#- name: Create dir /opt/iiab/downloads/mongodb-3.0.1x (rpi)
#  file:
#    path: "{{ downloads_dir }}/mongodb-3.0.1x"
#    state: directory
#  when: internet_available and is_rpi
#
#- name: Download & unzip MongoDB 3.0.14's 3 core binaries to /opt/iiab/downloads/mongodb-3.0.1x (rpi)
#  unarchive:
#    remote_src: yes
#    src: "{{ iiab_download_url }}/mongodb_stretch_3_0_14_core.zip"
#    dest: "{{ downloads_dir }}/mongodb-3.0.1x"
#  when: internet_available and is_rpi
#
#- name: Install (copy) 3 binaries from /opt/iiab/downloads/mongodb-3.0.1x/core to /usr/bin (rpi)
#  copy:
#    src: "{{ item }}"
#    dest: /usr/bin
#  with_fileglob:
#    - "{{ downloads_dir }}/mongodb-3.0.1x/core/*"
#  when: internet_available and is_rpi
#
#- name: Download & unzip MongoDB 3.0.15's 9 tools binaries to /opt/iiab/downloads/mongodb-3.0.1x (rpi)
#  unarchive:
#    remote_src: yes
#    src: "{{ iiab_download_url }}/mongodb_stretch_3_0_14_tools.zip"
#    dest: "{{ downloads_dir }}/mongodb-3.0.1x"
#  when: internet_available and is_rpi
#
#- name: Install (copy) 9 binaries from /opt/iiab/downloads/mongodb-3.0.1x/tools to /usr/bin (rpi)
#  copy:
#    src: "{{ item }}"
#    dest: /usr/bin
#  with_fileglob:
#    - "{{ downloads_dir }}/mongodb-3.0.1x/tools/*"
#  when: internet_available and is_rpi

- name: Create Linux group mongodb (rpi)
  group:
    name: mongodb
    state: present
  when: is_rpi | bool

- name: Create Linux user mongodb (rpi)
  user:
    name: mongodb
    group: mongodb    # primary group
    groups: mongodb
    home: /var/lib/mongodb
    shell: /usr/sbin/nologin
  when: is_rpi | bool


# 2. CONFIGURE FOR IIAB

- name: 'Create 3 dirs for MongoDB: /var/lib/mongodb, /var/log/mongodb, {{ mongodb_db_path }}'
  file:
    state: directory
    path: "{{ item }}"
    owner: mongodb
    group: mongodb
  with_items:
    #- { path: '/var/run/mongodb' }
    - /var/lib/mongodb
    - /var/log/mongodb
    - "{{ mongodb_db_path }}"    # i.e. /library/dbdata/mongodb/

- name: Install /etc/mongod.conf, mongodb.service, /usr/bin/iiab-mongodb-repair-if-no-lock from templates
  template:
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
    owner: root
    group: root
    mode: "{{ item.mode }}"
  with_items:
    - { src: 'mongod.conf.j2', dest: "{{ mongodb_conf }}", mode: '0644' }    # i.e. /etc/mongod.conf
    - { src: 'mongodb.service.j2', dest: '/etc/systemd/system/mongodb.service', mode: '0644' }
    - { src: 'iiab-mongodb-repair-if-no-lock.j2', dest: '/usr/bin/iiab-mongodb-repair-if-no-lock', mode: '0755' }


# 3. ENABLE/DISABLE

# 2019-07-08: mongodb_install is completely ignored.  FYI mongodb_enabled: False
# works but is ineffective, as Sugarizer starts mongodb's systemd svc on its own

- name: Enable & Restart 'mongodb' systemd service if mongodb_enabled, incl daemon-reload (in case mongodb.service changed?)
  systemd:
    name: mongodb
    daemon_reload: yes
    enabled: yes
    state: restarted
  when: mongodb_enabled | bool

- name: Disable 'mongodb' service, if not mongodb_enabled
  systemd:
    name: mongodb
    daemon_reload: yes
    enabled: no
    state: stopped
  when: not mongodb_enabled


# 4. DOCUMENT IN /etc/iiab/iiab.ini

- name: Add 'mongodb' variable values to {{ iiab_ini_file }}
  ini_file:
    path: "{{ iiab_ini_file }}"
    section: mongodb
    option: "{{ item.option }}"
    value: "{{ item.value }}"
  with_items:
    - option: name
      value: MongoDB
    - option: description
      value: '"MongoDB is an open-source document database that provides high performance, high availability, and automatic scaling."'
    - option: enabled
      value: "{{ mongodb_enabled }}"