如何通过环境变量禁用Bitnami MongoDB分片集群的writeConcern

我通过Bitnami MongoDB分片文档中的Docker Compose示例创建了分片集群，执行命令：

curl -sSL https://raw.githubusercontent.com/bitnami/containers/main/bitnami/mongodb-sharded/docker-compose.yml > docker-compose.yml
docker-compose up -d

使用Prisma连接时出现错误：

writeConcern is not allowed within a multi-statement transaction

以下是我的docker-compose.yml内容：

# Copyright VMware, Inc.
# SPDX-License-Identifier: APACHE-2.0

version: '2'

services:
  mongodb-sharded:
    image: docker.io/bitnami/mongodb-sharded:6.0
    environment:
      - MONGODB_ADVERTISED_HOSTNAME=mongodb-sharded
      - MONGODB_SHARDING_MODE=mongos
      - MONGODB_CFG_PRIMARY_HOST=mongodb-cfg
      - MONGODB_CFG_REPLICA_SET_NAME=cfgreplicaset
      - MONGODB_REPLICA_SET_KEY=replicasetkey123
      - MONGODB_ROOT_PASSWORD=password123
    ports:
      - "27017:27017"

  mongodb-shard0:
    image: docker.io/bitnami/mongodb-sharded:6.0
    environment:
      - MONGODB_ADVERTISED_HOSTNAME=mongodb-shard0
      - MONGODB_SHARDING_MODE=shardsvr
      - MONGODB_MONGOS_HOST=mongodb-sharded
      - MONGODB_ROOT_PASSWORD=password123
      - MONGODB_REPLICA_SET_MODE=primary
      - MONGODB_REPLICA_SET_KEY=replicasetkey123
      - MONGODB_REPLICA_SET_NAME=shard0
    volumes:
      - 'shard0_data:/bitnami'

  mongodb-cfg:
    image: docker.io/bitnami/mongodb-sharded:6.0
    environment:
      - MONGODB_ADVERTISED_HOSTNAME=mongodb-cfg
      - MONGODB_SHARDING_MODE=configsvr
      - MONGODB_ROOT_PASSWORD=password123
      - MONGODB_REPLICA_SET_MODE=primary
      - MONGODB_REPLICA_SET_KEY=replicasetkey123
      - MONGODB_REPLICA_SET_NAME=cfgreplicaset
    volumes:
      - 'cfg_data:/bitnami'

volumes:
  shard0_data:
    driver: local
  cfg_data:
    driver: local

解决方案：通过环境变量禁用writeConcern #

Bitnami的MongoDB镜像支持通过MONGODB_WRITE_CONCERN环境变量配置写入关注级别，将其设置为空字符串即可禁用默认的writeConcern配置。需要在所有MongoDB服务的environment部分添加该变量：

修改后的docker-compose.yml：

# Copyright VMware, Inc.
# SPDX-License-Identifier: APACHE-2.0

version: '2'

services:
  mongodb-sharded:
    image: docker.io/bitnami/mongodb-sharded:6.0
    environment:
      - MONGODB_ADVERTISED_HOSTNAME=mongodb-sharded
      - MONGODB_SHARDING_MODE=mongos
      - MONGODB_CFG_PRIMARY_HOST=mongodb-cfg
      - MONGODB_CFG_REPLICA_SET_NAME=cfgreplicaset
      - MONGODB_REPLICA_SET_KEY=replicasetkey123
      - MONGODB_ROOT_PASSWORD=password123
      - MONGODB_WRITE_CONCERN=''  # 添加此行禁用writeConcern
    ports:
      - "27017:27017"

  mongodb-shard0:
    image: docker.io/bitnami/mongodb-sharded:6.0
    environment:
      - MONGODB_ADVERTISED_HOSTNAME=mongodb-shard0
      - MONGODB_SHARDING_MODE=shardsvr
      - MONGODB_MONGOS_HOST=mongodb-sharded
      - MONGODB_ROOT_PASSWORD=password123
      - MONGODB_REPLICA_SET_MODE=primary
      - MONGODB_REPLICA_SET_KEY=replicasetkey123
      - MONGODB_REPLICA_SET_NAME=shard0
      - MONGODB_WRITE_CONCERN=''  # 添加此行禁用writeConcern
    volumes:
      - 'shard0_data:/bitnami'

  mongodb-cfg:
    image: docker.io/bitnami/mongodb-sharded:6.0
    environment:
      - MONGODB_ADVERTISED_HOSTNAME=mongodb-cfg
      - MONGODB_SHARDING_MODE=configsvr
      - MONGODB_ROOT_PASSWORD=password123
      - MONGODB_REPLICA_SET_MODE=primary
      - MONGODB_REPLICA_SET_KEY=replicasetkey123
      - MONGODB_REPLICA_SET_NAME=cfgreplicaset
      - MONGODB_WRITE_CONCERN=''  # 添加此行禁用writeConcern
    volumes:
      - 'cfg_data:/bitnami'

volumes:
  shard0_data:
    driver: local
  cfg_data:
    driver: local

修改完成后，重启集群使配置生效：

docker-compose down
docker-compose up -d

内容的提问来源于stack exchange，提问作者rostamiani