nginx-proxy-manager/docker-compose.yaml

# docker-compose.yml
version: "3.7"

secrets:
  # paths assume the .secrets folder is sibling depth to folder where docker-compose resides
  DB_ROOT_PWD:
    file: ../.secrets/db_root_pwd.txt
  MYSQL_PWD:
    file: ../.secrets/mysql_pwd.txt

# networks:
#   npm-bridge:  # arbitrary name
#     driver: bridge

services:
  mariadb:
    image: ahgraber/mariadb-aria:test
    container_name: mariadb
    secrets:
      - DB_ROOT_PWD
      - MYSQL_PWD
    # networks:
    #   - npm-bridge
    # ports:
    #   - 3306:3306
    environment:
      # MYSQL_ROOT_PASSWORD: "npm"
      MYSQL_ROOT_PASSWORD__FILE: /run/secrets/DB_ROOT_PWD
      MYSQL_DATABASE: "npm"
      MYSQL_USER: "npm"
      # MYSQL_PASSWORD: "npm"
      MYSQL_PASSWORD__FILE: /run/secrets/MYSQL_PWD 
    volumes:
      - ./data/mysql:/var/lib/mysql
      # - npm-mount:/var/lib/mysql
    # restart: unless-stopped

  npm:
    build:   
      context: .
      dockerfile: ./Dockerfile
      # args:
      #   TARGETPLATFORM: arm64v8
    image: nginx-proxy-manager:test              # provide a name and tag for the image
    container_name: npm
    secrets:
      - MYSQL_PWD
    # networks:
    #   - npm-bridge
    ports:
      - 8080:80
      - 8443:443
      - 8888:81
    environment:
      DISABLE_IPV6: 'true'
      DB_MYSQL_HOST: "mariadb"
      DB_MYSQL_PORT: 3306
      DB_MYSQL_NAME: "npm"
      DB_MYSQL_USER: "npm"
      # DB_MYSQL_PASSWORD: "npm"
      DB_MYSQL_PASSWORD__FILE: /run/secrets/MYSQL_PWD 
      # DB_MYSQL_PASSWORD: "sqlL3tm3in"
    volumes:
      - ./data/npm:/data
      - ./data/letsencrypt:/etc/letsencrypt
      # - npm-mount:/data
      # - letsencrypt-mount:/etc/letsencrypt
    depends_on:
      - mariadb
    # restart: unless-stopped

# ## https://stackoverflow.com/questions/45282608/how-to-directly-mount-nfs-share-volume-in-container-using-docker-compose-v3
# volumes:
#   npm-mount:
#     driver: local
#     driver_opts:
#       type: nfs
#       o: nfsvers=4,addr=10.2.1.1,rw,retry=1,soft,nolock
#       device: ":/npm"
#   letsencrypt-mount:
#     driver: local
#     driver_opts:
#       type: nfs
#       o: nfsvers=4,addr=10.2.1.1,rw,retry=1,soft,nolock
#       device: ":/letsencrypt"