automa/infrastructure/watchtower/compose.yml
m1ngsama 7bb3e05942 feat: add infrastructure services for monitoring and automation
Add infrastructure layer with following components:

**Reverse Proxy & SSL:**
- Caddy: Auto HTTPS with Let's Encrypt, simple configuration
- Caddyfile with reverse proxy rules for Nextcloud and Grafana

**Monitoring Stack (Observability):**
- Prometheus: Metrics collection and time-series database
- Grafana: Visualization dashboards with datasource provisioning
- Loki: Lightweight log aggregation
- Promtail: Log collection agent for Docker containers
- cAdvisor: Container resource monitoring

**Automation:**
- Watchtower: Automatic Docker image updates (label-based)
- Duplicati: Remote backup with web UI and encryption support

**Security:**
- Fail2ban: Intrusion prevention and IP banning

**Key Features:**
- All services use official Alpine-based images (lightweight)
- Network isolation (automa-proxy, automa-monitoring)
- Resource limits and health checks configured
- Read-only configs where applicable
- Comprehensive README with setup instructions

**Resource Usage:**
- Total additional overhead: ~1.5GB RAM, ~16GB disk
- Follows KISS principles and Unix philosophy
- All services replaceable and independently scalable

Refs: #3
2026-01-19 16:32:00 +08:00

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YAML

services:
watchtower:
image: containrrr/watchtower:latest
container_name: automa-watchtower
restart: unless-stopped
environment:
- WATCHTOWER_CLEANUP=true # Remove old images
- WATCHTOWER_POLL_INTERVAL=86400 # Check every 24 hours
- WATCHTOWER_LABEL_ENABLE=true # Only update labeled containers
- WATCHTOWER_INCLUDE_STOPPED=false # Skip stopped containers
- TZ=${TZ:-Asia/Shanghai}
volumes:
- /var/run/docker.sock:/var/run/docker.sock
labels:
- "com.automa.service=watchtower"
- "com.centurylinklabs.watchtower.enable=false" # Don't update itself
# Add this label to containers you want to auto-update:
# labels:
# - "com.centurylinklabs.watchtower.enable=true"