Initial commit: 23 docker stacks for GitOps deployment

Stacks included:
- Infrastructure: traefik, authentik, gitea, registry, watchtower, dockge
- Monitoring: smokeping, changedetection
- Apps: ghost, gollum, wallabag, radicale, invidious, xbackbone, filebrowser, syncthing, zerotier
- Custom: obsidian-tools, memento, perilous, ramz, bookclub, brain

🤖 Generated with Claude Code

stacks/authentik/docker-compose.yml

@@ -0,0 +1,75 @@
+services:
+  server:
+    image: ghcr.io/goauthentik/server:latest
+    container_name: authentik-server
+    restart: unless-stopped
+    command: server
+    environment:
+      AUTHENTIK_SECRET_KEY: ${AUTHENTIK_SECRET_KEY}
+      AUTHENTIK_REDIS__HOST: redis
+      AUTHENTIK_POSTGRESQL__HOST: postgresql
+      AUTHENTIK_POSTGRESQL__USER: authentik
+      AUTHENTIK_POSTGRESQL__NAME: authentik
+      AUTHENTIK_POSTGRESQL__PASSWORD: ${AUTHENTIK_PG_PASS}
+    volumes:
+      - ./media:/media
+      - ./custom-templates:/templates
+    env_file:
+      - .env
+    depends_on:
+      - postgresql
+      - redis
+    networks:
+      - web
+      - default
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.authentik.entrypoints=https"
+      - "traefik.http.routers.authentik.rule=Host(`authentik.${DOMAIN}`)"
+      - "traefik.http.routers.authentik.tls.certresolver=http"
+      - "traefik.http.services.authentik.loadbalancer.server.port=9000"
+
+  worker:
+    image: ghcr.io/goauthentik/server:latest
+    container_name: authentik-worker
+    restart: unless-stopped
+    command: worker
+    environment:
+      AUTHENTIK_SECRET_KEY: ${AUTHENTIK_SECRET_KEY}
+      AUTHENTIK_REDIS__HOST: redis
+      AUTHENTIK_POSTGRESQL__HOST: postgresql
+      AUTHENTIK_POSTGRESQL__USER: authentik
+      AUTHENTIK_POSTGRESQL__NAME: authentik
+      AUTHENTIK_POSTGRESQL__PASSWORD: ${AUTHENTIK_PG_PASS}
+    volumes:
+      - ./media:/media
+      - ./certs:/certs
+      - ./custom-templates:/templates
+    env_file:
+      - .env
+    depends_on:
+      - postgresql
+      - redis
+
+  postgresql:
+    image: postgres:15-alpine
+    container_name: authentik-postgres
+    restart: unless-stopped
+    environment:
+      POSTGRES_PASSWORD: ${AUTHENTIK_PG_PASS}
+      POSTGRES_USER: authentik
+      POSTGRES_DB: authentik
+    volumes:
+      - ./postgres:/var/lib/postgresql/data
+
+  redis:
+    image: redis:alpine
+    container_name: authentik-redis
+    restart: unless-stopped
+    command: --save 60 1 --loglevel warning
+    volumes:
+      - ./redis:/data
+
+networks:
+  web:
+    external: true