iiab/roles/mongodb/tasks/install.yml

# 1. INSTALL MongoDB PACKAGES OR BINARIES

# 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 Raspbian, 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)

- block:
  - name: Create dir /tmp/mongodb-3.0.1x (aarch32)
    file:
      path: /tmp/mongodb-3.0.1x
      state: directory

  - name: Download & unzip 20MB http://download.iiab.io/packages/mongodb_stretch_3_0_14_core.zip to /tmp/mongodb-3.0.1x (aarch32)
    unarchive:
      remote_src: yes
      src: "{{ iiab_download_url }}/mongodb_stretch_3_0_14_core.zip"
      dest: /tmp/mongodb-3.0.1x

  - name: Install (move) its 3 CORE binaries from /tmp/mongodb-3.0.1x/core to /usr/bin (aarch32)
    shell: mv /tmp/mongodb-3.0.1x/core/* /usr/bin

  - 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 (aarch32)
    unarchive:
      remote_src: yes
      src: "{{ iiab_download_url }}/mongodb_stretch_3_0_14_tools.zip"
      dest: /tmp/mongodb-3.0.1x

  - name: Install (move) its 9 TOOLS binaries from /opt/iiab/downloads/mongodb-3.0.1x/tools to /usr/bin (aarch32)
    shell: mv /tmp/mongodb-3.0.1x/tools/* /usr/bin

  - name: Create Linux group mongodb (aarch32)
    group:
      name: mongodb
      state: present

  - name: Create Linux user mongodb (aarch32)
    user:
      name: mongodb
      group: mongodb    # primary group
      groups: mongodb
      home: /var/lib/mongodb
      shell: /usr/sbin/nologin

  - name: Install /etc/mongod.conf from template (aarch32)
    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


  # end block
  when: not (ansible_userspace_architecture == "x86_64" or ansible_userspace_architecture == "aarch64")
# 32 bit OS's get caught above should handle aarch32 including 32-bit ubuntu
# from https://ubuntu.com/download/raspberry-pi. 20.4-32bit might fail untested
# 32bit intel might puke as this was orginally deployed for raspbian. Haven't
# see bootable 32bit intel installers for a while now.
# 64 bit OS's proceed below.
- block:
  - name: Add mongodb.org signing key (only 64-bit support available)
    shell: wget -qO - https://www.mongodb.org/static/pgp/server-4.4.asc | apt-key add -
    args:
      warn: false

  - name: Add mongodb repo for Debian 10 (only amd64 support available)
    apt_repository:
      repo: deb http://repo.mongodb.org/apt/debian buster/mongodb-org/4.4 main
      state: present
      filename: mongodb-org
    when: is_debian_10 and (ansible_userspace_architecture == "x86_64")

  # Debian 10 aarch64 might work below but is blocked in main.yml
  - name: Add mongodb repo for RaspOS-aarch64
    apt_repository:
      repo: deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.4 multiverse
      state: present
      filename: mongodb-org
    when: (ansible_userspace_architecture == "aarch64" and is_raspbian_10)

  - name: Add mongodb repo for Ubuntu 64bit only
    apt_repository:
      repo: deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu {{ ansible_distribution_release }}/mongodb-org/4.4 multiverse
      state: present
      filename: mongodb-org
    when: is_ubuntu

  - name: "Install packages: mongodb-org, mongodb-org-server"
    package:
      name:
        - mongodb-org
        - mongodb-org-server
      state: present

  - name: Change the mongodb port to 27018
    lineinfile:
      path: /etc/mongod.conf
      regexp: 'port: 27017'
      backrefs: yes
      line: '  port: 27018'

  # end block
  when: (ansible_userspace_architecture == "aarch64") or (ansible_userspace_architecture == "x86_64")


# 2. CONFIGURE MongoDB 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 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: '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' }

# daemon_reload is used to force systemd to recognize a newly installed .service file
# restarted here to ensure the port has been changed
- name: Disable 'mongodb' systemd service - started on demand by sugarizer
  systemd:
    name: mongodb
    daemon_reload: yes
    enabled: no
    state: restarted

# 3. RECORD MongoDB AS INSTALLED

- name: "Set 'mongodb_installed: True'"
  set_fact:
    mongodb_installed: True

- name: "Add 'mongodb_installed: True' to {{ iiab_state_file }}"
  lineinfile:
    path: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
    regexp: '^mongodb_installed'
    line: 'mongodb_installed: True'