services:
  # TimescaleDB (PostgreSQL with time-series optimization)
  db:
    image: timescale/timescaledb:latest-pg17
    container_name: argus-db
    restart: unless-stopped
    logging:
      driver: "json-file"
      options:
        max-size: "50m"
        max-file: "3"
    environment:
      TZ: ${TZ:-UTC}
      # Internal database credentials, not customer-configurable — nothing
      # outside this compose stack ever connects to Postgres directly, so
      # there's no real reason to let these vary. Only the password (below)
      # needs to be a real secret; the username/db name are just labels.
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: ${DB_PASSWORD:-postgres}
      POSTGRES_DB: argus
    command: postgres -c timezone=${TZ:-UTC} -c log_timezone=${TZ:-UTC} -c shared_preload_libraries=timescaledb -c timescaledb.telemetry_level=off -c max_locks_per_transaction=512
    volumes:
      - postgres_data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres"]
      interval: 10s
      timeout: 5s
      retries: 10
      start_period: 30s

  # Valkey (Redis-compatible) for caching
  valkey:
    image: valkey/valkey:9-alpine
    container_name: argus-valkey
    restart: unless-stopped
    logging:
      driver: "json-file"
      options:
        max-size: "10m"
        max-file: "3"
    environment:
      TZ: ${TZ:-UTC}
    command: >
      valkey-server
      --maxmemory 256mb
      --maxmemory-policy allkeys-lru
      --appendonly yes
      --appendfsync everysec
    volumes:
      - valkey_data:/data
    healthcheck:
      test: ["CMD", "valkey-cli", "ping"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 10s

  # Restricts the api service's Docker Engine API access to exactly what it
  # needs (list/inspect/exec/restart existing containers for log collection
  # and nginx reload) — it cannot create new containers or touch the host
  # beyond that. See docker-socket-proxy/README.md for the exact allowed set.
  docker-socket-proxy:
    image: tecnativa/docker-socket-proxy:latest
    container_name: argus-docker-socket-proxy
    restart: unless-stopped
    security_opt:
      - "no-new-privileges:true"
    environment:
      CONTAINERS: 1
      IMAGES: 1
      VOLUMES: 1
      SYSTEM: 1
      EXEC: 1
      VERSION: 1
      POST: 1
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - ./docker-socket-proxy/haproxy.cfg.template:/usr/local/etc/haproxy/haproxy.cfg.template:ro
    logging:
      driver: "json-file"
      options:
        max-size: "10m"
        max-file: "3"

  # Go API Server
  api:
    image: git-cloud.weboria.eu/weboria/argus-api:latest
    container_name: argus-api
    restart: unless-stopped
    # Container hardening: no-new-privileges blocks setuid privilege
    # escalation; cap_drop ALL removes every Linux capability, re-adding only
    # what's needed (DAC_OVERRIDE for the shared /etc/nginx volume owned by
    # the nginx user, NET_BIND_SERVICE for the DNS Security Engine's :53).
    security_opt:
      - "no-new-privileges:true"
    cap_drop:
      - ALL
    cap_add:
      - DAC_OVERRIDE
      - NET_BIND_SERVICE
    logging:
      driver: "json-file"
      options:
        max-size: "100m"
        max-file: "5"
    extra_hosts:
      - "host.docker.internal:host-gateway"
    environment:
      TZ: ${TZ:-UTC}
      PORT: "8080"
      DATABASE_URL: postgres://postgres:${DB_PASSWORD:-postgres}@db:5432/argus?sslmode=disable
      REDIS_URL: redis://valkey:6379/0
      ENVIRONMENT: ${ENVIRONMENT:-production}
      NGINX_CONTAINER: argus-proxy
      NGINX_SKIP_TEST: "false"
      NGINX_STATUS_URL: "http://host.docker.internal:${NGINX_HTTP_PORT:-80}/nginx_status"
      NGINX_ACCESS_LOG: "/etc/nginx/logs/access_raw.log"
      BACKUP_PATH: ${BACKUP_PATH:-/app/data/backups}
      DOCKER_API_VERSION: ${DOCKER_API_VERSION:-}
      DOCKER_HOST: tcp://docker-socket-proxy:2375
      NGINX_HTTP_PORT: ${NGINX_HTTP_PORT:-}
      NGINX_HTTPS_PORT: ${NGINX_HTTPS_PORT:-}
      API_HOST_PORT: ${API_HOST_PORT:-9080}
      API_HOST: ${API_HOST:-}
      # ANIS community intelligence — on by default against the public
      # Community Edition hub (community tier, no signup required). There is
      # no self-hosted-ANIS deployment model: the URL is fixed, not
      # customer-configurable. A license key upgrades the tier, but is only
      # ever set from Threat Intel -> ANIS Connection in the dashboard
      # (write-only there — never round-trips back to the client), not from
      # this file, so it's seeded empty (community tier) here.
      # (No ANIS_ADMIN_KEY or ANIS_SHARE_ATTACKERS here: both confirmed dead
      # via grep, zero references anywhere in internal/config.go or the ANIS
      # client. A prior version of this file carried ANIS_ADMIN_KEY and
      # falsely claimed ARGUS "fails closed at startup" without it.)
      ANIS_ENABLED: ${ANIS_ENABLED:-true}
      ANIS_URL: https://anis.weboria.eu
      ANIS_LICENSE_KEY: ""
      DNS_SECURITY_LISTEN_ADDR: ":53"
    ports:
      - "127.0.0.1:${API_HOST_PORT:-9080}:8080"
      # DNS Security Engine. Host-only by default — a bare forwarding
      # resolver reachable from the network is exactly the profile abused
      # for DNS amplification attacks against third parties. Set
      # DNS_LISTEN_HOST to an internal interface IP to route real client
      # DNS traffic through it (never 0.0.0.0 on an untrusted network).
      - "${DNS_LISTEN_HOST:-127.0.0.1}:53:53/udp"
      - "${DNS_LISTEN_HOST:-127.0.0.1}:53:53/tcp"
    volumes:
      - nginx_data:/etc/nginx:rw
      - api_data:/app/data:rw
    depends_on:
      db:
        condition: service_healthy
      valkey:
        condition: service_started
      docker-socket-proxy:
        condition: service_started
    healthcheck:
      test: ["CMD", "wget", "-q", "--spider", "http://localhost:8080/health"]
      interval: 30s
      timeout: 5s
      retries: 3
      start_period: 360s

  # React UI (Admin Panel), served over HTTPS
  ui:
    image: git-cloud.weboria.eu/weboria/argus-ui:latest
    container_name: argus-ui
    restart: unless-stopped
    security_opt:
      - "no-new-privileges:true"
    cap_drop:
      - ALL
    cap_add:
      - NET_BIND_SERVICE
    logging:
      driver: "json-file"
      options:
        max-size: "10m"
        max-file: "3"
    environment:
      TZ: ${TZ:-UTC}
    ports:
      - "${UI_PORT:-81}:443"
    volumes:
      - ui_data:/app/ssl:rw
    depends_on:
      - api

  # Nginx reverse proxy — host network mode, so real client IPs are visible
  # directly without needing PROXY protocol.
  nginx:
    image: git-cloud.weboria.eu/weboria/argus-proxy:latest
    container_name: argus-proxy
    restart: always
    network_mode: host
    # Not cap_drop'd: runs nginx in host-network mode with a root master that
    # drops workers to the nginx user, needing CHOWN/SETUID/SETGID plus binds
    # on privileged 80/443.
    security_opt:
      - "no-new-privileges:true"
    logging:
      driver: "json-file"
      options:
        max-size: "100m"
        max-file: "5"
    environment:
      TZ: ${TZ:-UTC}
    ulimits:
      nofile:
        soft: 65535
        hard: 65535
    volumes:
      - nginx_data:/etc/nginx:rw
    depends_on:
      - api
    healthcheck:
      test: ["CMD", "curl", "-f", "http://127.0.0.1:${NGINX_HTTP_PORT:-80}/health"]
      interval: 15s
      timeout: 5s
      retries: 3
      start_period: 10s

volumes:
  postgres_data:
    name: argus_postgres_data
  valkey_data:
    name: argus_valkey_data
  nginx_data:
    name: argus_nginx_data
  api_data:
    name: argus_api_data
  ui_data:
    name: argus_ui_data

networks:
  default:
    name: argus-network
    external: true