lad/template/ansible/playbooks/mongo.yml

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---
- import_playbook: security.yml hostlist=mongo
- hosts: mongo
  become: true
  become_user: root
  vars:
    # https://github.com/UnderGreen/ansible-role-mongodb
    mongodb_version: "4.2"
    mongodb_pymongo_from_pip: true
    mongodb_daemon_name: mongod
    mongodb_net_port: "{{ lookup('env', 'MONGO_PORT') }}"
    mongodb_security_authorization: 'enabled'
    mongodb_user_admin_name: admin_user
    mongodb_user_admin_password: "{{ lookup('env', 'MONGO_PASS') }}"
    mongodb_root_admin_name: "{{ lookup('env', 'MONGO_USER') }}"
    mongodb_root_admin_password: "{{ lookup('env', 'MONGO_PASS') }}"
    mongodb_root_backup_name: admin_backup
    mongodb_root_backup_password: "{{ lookup('env', 'MONGO_PASS') }}"
    mongodb_net_bindip: "127.0.0.1,{{ lookup('env', 'MONGO_HOST') }}"
    mongodb_security_javascript_enabled: true
    mongodb_manage_service: true
  # this was already defined in the mongo role
  # https://github.com/UnderGreen/ansible-role-mongodb/blob/master/handlers/main.yml
  handlers:
    - name: mongodb restart
      service:
        name: "{{ mongodb_daemon_name }}"
        state: restarted
      when: mongodb_manage_service | bool
  roles:
    # https://github.com/holms/ansible-fqdn
    - role: fqdn
    # https://github.com/UnderGreen/ansible-role-mongodb
    - role: mongo
  tasks:
    # security
    - name: increase nproc and nofile for mongodb
      copy:
        src: '{{ playbook_dir }}/templates/security-limits.d-mongod.conf'
        dest: /etc/security/limits.d/mongod.conf
        owner: root
        group: root
        mode: 0644
      notify: mongodb restart
    # ufw
    - name: enable ufw
      ufw:
        state: enabled
        policy: deny
        direction: incoming
    - name: limit ufw ssh
      ufw:
        rule: limit
        port: 22
        proto: tcp
    - name: allow ssh
      ufw:
        rule: allow
        port: 22
        proto: tcp
    - name: allow server access
      ufw:
        rule: allow
        port: "{{ lookup('env', 'MONGO_PORT') }}"
        src: "{{ hostvars[item].ansible_host }}"
        proto: tcp
      with_items: "{{ groups['web'] + groups['api'] + groups['bree'] }}"
    - name: reload ufw
      ufw:
        state: reloaded