services: Fix discord-bot

roles/services/tasks/discord_bot.yaml

@@ -4,7 +4,17 @@
     name:
       - python3-paho-mqtt
       - python3-tz
-      # Not in apt, install manually: discord.py, discord_webhook
+      - virtualenv
+
+- name: Create virtualenv
+  command: virtualenv /opt/miflora_exporter/.venv
+  args:
+    creates: /var/lib/discord-bot/.venv
+
+- name: Install Python dependencies
+  shell: . .venv/bin/activate && pip install -r requirements.txt
+  args:
+    chdir: /var/lib/discord-bot
 
 - name: Clone source
   git:

roles/services/templates/discord-bot.service

@@ -8,7 +8,7 @@ After=network.target
 Type=simple
 Restart=on-failure
 RestartSec=10s
-ExecStart=/var/lib/discord-bot/main.py
+ExecStart=/var/lib/discord-bot/.venv/bin/python /var/lib/discord-bot/main.py
 DynamicUser=true
 Environment="DISCORD_TOKEN={{ discord_token }}"