version: '3.8'

services:
  db:
    image: postgres:16
    container_name: PostgreSQL
    environment:
      - POSTGRES_DB=postgres
      - POSTGRES_USER=root
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
      - POSTGRES_INITDB_ARGS=--encoding=UTF8 --lc-collate=C --lc-ctype=C

    command:
      - "postgres"
      - "-c"
      - "shared_buffers=2GB"
      - "-c"
      - "effective_cache_size=6GB"
      - "-c"
      - "maintenance_work_mem=512MB"
      - "-c"
      - "checkpoint_completion_target=0.9"
      - "-c"
      - "wal_buffers=16MB"
      - "-c"
      - "default_statistics_target=100"
      - "-c"
      - "random_page_cost=1.1"
      - "-c"
      - "effective_io_concurrency=200"
      - "-c"
      - "work_mem=32MB"
      - "-c"
      - "min_wal_size=1GB"
      - "-c"
      - "max_wal_size=4GB"
      - "-c"
      - "max_worker_processes=8"
      - "-c"
      - "max_parallel_workers_per_gather=4"
      - "-c"
      - "max_parallel_workers=8"
      - "-c"
      - "max_parallel_maintenance_workers=4"
      - "-c"
      - "max_connections=100"
      - "-c"
      - "log_min_duration_statement=1000"
      - "-c"
      - "log_line_prefix=%t [%p]: [%l-1] user=%u,db=%d,app=%a,client=%h "
      - "-c"
      - "log_checkpoints=on"
      - "-c"
      - "log_connections=on"
      - "-c"
      - "log_disconnections=on"
      - "-c"
      - "log_lock_waits=on"
      - "-c"
      - "log_temp_files=0"
      - "-c"
      - "autovacuum_max_workers=3"
      - "-c"
      - "autovacuum_naptime=10s"
      - "-c"
      - "shared_preload_libraries=pg_stat_statements"

    volumes:
      - /volume1/docker/postgresql:/var/lib/postgresql/data

    networks:
      - postgres01_default
      - paperless_shared

    deploy:
      resources:
        limits:
          memory: 8G
        reservations:
          memory: 4G

    restart: unless-stopped

    healthcheck:
      test: ["CMD-SHELL", "pg_isready -q -d postgres -U root"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 30s

  pgbouncer:
    image: pgbouncer/pgbouncer:latest
    container_name: PgBouncer
    environment:
      - DATABASES_HOST=PostgreSQL
      - DATABASES_PORT=5432
      - DATABASES_USER=root
      - DATABASES_PASSWORD=${POSTGRES_PASSWORD}
      - DATABASES_DBNAME=paperless
      - POOL_MODE=transaction
      - MAX_CLIENT_CONN=100
      - DEFAULT_POOL_SIZE=25
      - MIN_POOL_SIZE=10
      - RESERVE_POOL_SIZE=5
      - RESERVE_POOL_TIMEOUT=3
      - SERVER_IDLE_TIMEOUT=600
      - LOG_CONNECTIONS=1
      - LOG_DISCONNECTIONS=1
    networks:
      - paperless_shared
    depends_on:
      db:
        condition: service_healthy

    deploy:
      resources:
        limits:
          memory: 256M
        reservations:
          memory: 128M
    restart: unless-stopped

  pgadmin:
    image: dpage/pgadmin4:latest
    container_name: pgAdmin
    environment:
      - PGADMIN_DEFAULT_EMAIL=${PGADMIN_EMAIL:-admin@admin.com}
      - PGADMIN_DEFAULT_PASSWORD=${PGADMIN_PASSWORD:-admin}
      - PGADMIN_CONFIG_SERVER_MODE=True
      - PGADMIN_CONFIG_MASTER_PASSWORD_REQUIRED=True

    volumes:
      - /volume1/docker/postgresadmin:/var/lib/pgadmin

    ports:
      - "2660:80"

    networks:
      - postgres01_default

    depends_on:
      db:
        condition: service_healthy

    deploy:
      resources:
        limits:
          memory: 512M
        reservations:
          memory: 256M

    restart: unless-stopped

    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:80"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 30s

networks:
  postgres01_default:
    driver: bridge
  paperless_shared:
    external: true
    name: paperless_shared