在离岸VPS上部署 Uptime Kuma

# 1) Install Docker + compose plugin (Ubuntu 24.04)
#    curl -fsSL https://get.docker.com | sh
#
# 2) docker-compose.yml  — Uptime Kuma behind Caddy for automatic HTTPS
#    Replace status.example.com with your domain (A record -> this VPS).

services:
  uptime-kuma:
    image: louislam/uptime-kuma:1
    container_name: uptime-kuma
    restart: unless-stopped
    volumes:
      - ./uptime-kuma-data:/app/data
    # Bound to loopback: only Caddy reaches it, never the public internet.
    ports:
      - "127.0.0.1:3001:3001"

  caddy:
    image: caddy:2
    container_name: caddy
    restart: unless-stopped
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./Caddyfile:/etc/caddy/Caddyfile:ro
      - caddy-data:/data
      - caddy-config:/config

volumes:
  caddy-data:
  caddy-config:

# 3) Caddyfile (same directory) — TLS is issued automatically:
#    status.example.com {
#        reverse_proxy uptime-kuma:3001
#    }
#
# 4) docker compose up -d
#    Open https://status.example.com and create the admin user
#    on first visit (do this immediately — the setup screen is unauthenticated).