Add Docker Compose files for Open WebUI and Watchtower services

containers/README.md

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+# Containers
+
+Easy to deploy in portainer that nix

containers/open-webui/docker-compose.yml

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+services:
+  openwebui:
+    image: ghcr.io/open-webui/open-webui:main
+    ports:
+      - "4000:8080"
+    volumes:
+      - open-webui:/app/backend/data
+    environment:
+      WEBUI_URL: https://ai.${DOMAIN}
+      ENABLE_OPENAI_API: true
+      OPENAI_API_BASE_URL: http://open-webui.home:12345
+      ENABLE_OLLAMA_API: false
+      ENABLE_WEB_SEARCH: true
+      WEB_SEARCH_ENGINE: searxng
+      SEARXNG_QUERY_URL: https://search.${DOMAIN}/search?q=<query>
+      OAUTH_CLIENT_ID: ${OAUTH_CLIENT_ID}
+      OAUTH_CLIENT_SECRET: ${OAUTH_CLIENT_SECRET}
+      OAUTH_PROVIDER_NAME: authentik
+      OPENID_PROVIDER_URL: https://auth.${DOMAIN}/application/o/openwebui/.well-known/openid-configuration
+      OPENID_REDIRECT_URI: https://ai.${DOMAIN}/oauth/oidc/callback
+      ENABLE_OAUTH_SIGNUP: true
+      ENABLE_LOGIN_FORM: false
+    labels:
+      - "com.centurylinklabs.watchtower.enable=true"
+
+volumes:
+  open-webui:

containers/watchtower/docker-compose.yml

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+services:
+  watchtower:
+    image: containrrr/watchtower
+    container_name: watchtower
+    extends:
+      file: "../base.yml"
+      service: base
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+    environment:
+      - TZ=Europe/Rome
+      - WATCHTOWER_SCHEDULE=0 0 4 * * *
+      - WATCHTOWER_CLEANUP=true
+      - WATCHTOWER_LABEL_ENABLE=true
+      - WATCHTOWER_NOTIFICATIONS=shoutrrr
+      - WATCHTOWER_NOTIFICATION_URL=telegram://${BOT_TOKEN}@telegram/?channels=${CHAT_ID}
+    labels:
+      - "com.centurylinklabs.watchtower.enable=true"
+
+volumes:
+  open-webui: