First pass at adding the Discord bot

roles/discord-gated-entry/README.md

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+# Discord Gated Entry
+
+A Bot for gating entry to a Discord server.
+
+This is a deployment of <https://github.com/srobo/discord-gated-entry>.

roles/discord-gated-entry/handlers/main.yml

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+- name: Restart discord-gated-entry
+  service:
+    name: discord-gated-entry
+    state: restarted

roles/discord-gated-entry/tasks/main.yml

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+- name: Install virtualenv system dependencies
+  apt:
+    pkg:
+      - python3-virtualenv
+      - python3-wheel
+
+- name: Create user
+  user:
+    name: discord
+    shell: /bin/nologin
+    state: present
+
+- name: Create install directory
+  file:
+    path: "{{ install_dir }}"
+    state: directory
+    owner: discord
+    mode: "755"
+
+- name: Download
+  git:
+    repo: https://github.com/srobo/discord-gated-entry
+    dest: "{{ install_dir }}"
+    force: true
+    version: 476a9c942f580e2950048c2b95e15429cb0ae33d
+  notify:
+    Restart discord-gated-entry
+  register: discord_gated_entry_repo
+  become_user: discord
+
+- name: Bootstrap environment file
+  file:
+    state: touch
+    dest: "{{ install_dir }}/.env"
+    mode: "0600"
+    owner: discord
+  notify:
+    Restart discord-gated-entry
+
+- name: Install virtual environment
+  pip:
+    virtualenv: "{{ venv_dir }}"
+    requirements: "{{ install_dir }}/requirements.txt"
+  notify:
+    Restart discord-gated-entry
+  become_user: discord
+  when: discord_gated_entry_repo.changed  # noqa: no-handler - Use a handler to ensure execution order
+
+- name: Install systemd service
+  template:
+    src: discord-gated-entry.service
+    dest: /etc/systemd/system/discord-gated-entry.service
+    mode: "0644"
+  notify:
+    Restart discord-gated-entry
+
+- name: Enable service
+  service:
+    name: discord-gated-entry
+    state: started
+    enabled: true

roles/discord-gated-entry/templates/discord-gated-entry.service

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+[Unit]
+Description=Discord bot for gated entry
+After=network.target
+
+[Service]
+User=discord
+
+Type=simple
+
+WorkingDirectory={{ install_dir }}
+RuntimeDirectory=discord-gated-entry
+
+ExecStart=/srv/discord-gated-entry/venv/bin/python main.py
+
+[Install]
+WantedBy=multi-user.target

roles/discord-gated-entry/vars/main.yml

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+install_dir: /srv/discord-gated-entry
+venv_dir: "{{ install_dir }}/venv"