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您好我正在尝试运行 mongodb 以使用 docker 映像（bitnami mongodb:4.0. 和 mongo-express）备份一些文件。这些是由这个 docker-compose 文件指定的：

    version: '3.5'
services:

  mongodb-primary:
    image: 'bitnami/mongodb:4.0'
    restart: always
    environment:
      - MONGODB_ADVERTISED_HOSTNAME=mongodb-primary
      - MONGODB_REPLICA_SET_MODE=primary
      - MONGODB_ROOT_PASSWORD=root
      - MONGODB_REPLICA_SET_NAME=rs0
      - MONGODB_REPLICA_SET_KEY=replicatorkey
      - MONGODB_USERNAME=project
      - MONGODB_PASSWORD=pass
      - MONGODB_DATABASE=project
    ports:
      - 27017:27017
    volumes:
      - ./mongo_primary:/bitnami

  mongodb-secondary:
    image: 'bitnami/mongodb:4.0'
    restart: always
    environment:
      - MONGODB_ADVERTISED_HOSTNAME=mongodb-secondary
      - MONGODB_REPLICA_SET_MODE=secondary
      - MONGODB_PRIMARY_HOST=mongodb-primary
      - MONGODB_PRIMARY_ROOT_PASSWORD=root
      - MONGODB_REPLICA_SET_NAME=rs0
      - MONGODB_REPLICA_SET_KEY=replicatorkey
      - MONGODB_USERNAME=project
      - MONGODB_PASSWORD=pass
      - MONGODB_DATABASE=project
    depends_on:
      - mongodb-primary
    volumes:
      - ./mongo_secondary:/bitnami

  mongodb-arbiter:
    image: 'bitnami/mongodb:4.0'
    restart: always    
    environment:
      - MONGODB_ADVERTISED_HOSTNAME=mongodb-arbiter
      - MONGODB_REPLICA_SET_MODE=arbiter
      - MONGODB_PRIMARY_HOST=mongodb-primary
      - MONGODB_PRIMARY_ROOT_PASSWORD=root
      - MONGODB_REPLICA_SET_NAME=rs0
      - MONGODB_REPLICA_SET_KEY=replicatorkey
    depends_on:
      - mongodb-primary

  mongo-express:
    image: mongo-express
    restart: always 
    environment:
      - ME_CONFIG_MONGODB_SERVER="mongodb-primary,mongodb-secondary,mongodb-arbiter"
      - ME_CONFIG_MONGODB_AUTH_DATABASE=project
      - ME_CONFIG_REQUEST_SIZE=1024kb
      - ME_CONFIG_MONGODB_ENABLE_ADMIN=true
      - ME_CONFIG_MONGODB_ADMINUSERNAME=root
      - ME_CONFIG_MONGODB_ADMINPASSWORD=root
      - ME_CONFIG_MONGODB_AUTH_USERNAME=project
      - ME_CONFIG_MONGODB_AUTH_PASSWORD=pass
      - ME_CONFIG_BASICAUTH_USERNAME=admin
      - ME_CONFIG_BASICAUTH_PASSWORD=admin
      - ME_CONFIG_SITE_GRIDFS_ENABLED=true
    depends_on:
      - mongodb-primary
    ports:
      - 8888:8081

这个 docker-compose 文件和图像在同事工作站（内核：4.15 和 Ubuntu 18.04）上工作，但在我的（内核：5.3.0 Ubuntu 18.04）上我收到以下错误消息：

Admin database is not accessible
TypeError: Cannot read property 'listDatabases' of undefined
    at Object.connectionData.updateDatabases (/node_modules/mongo-express/lib/db.js:41:11)
    at /node_modules/mongo-express/lib/router.js:94:11
    at Layer.handle [as handle_request] (/node_modules/express/lib/router/layer.js:95:5)
    at next (/node_modules/express/lib/router/route.js:137:13)
    at Route.dispatch (/node_modules/express/lib/router/route.js:112:3)
    at Layer.handle [as handle_request] (/node_modules/express/lib/router/layer.js:95:5)
    at /node_modules/express/lib/router/index.js:281:22
    at param (/node_modules/express/lib/router/index.js:354:14)
    at param (/node_modules/express/lib/router/index.js:365:14)
    at Function.process_params (/node_modules/express/lib/router/index.js:410:3)

进入 mongo_primary 图像，它似乎工作正常，可以连接到 mongo 管理数据库，但似乎 mongo-express 不能。我们都看过并不确定为什么会发生这种情况。有没有其他人遇到过这个/修复它？

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