Question

我想使用docker-compose创建3个节点的副本集，并为它们提供初始数据。如果我删除--replSet并播种数据而未指定主机我没有问题。

搬运工-compose.yml

  master:
    image: 'mongo:3.4'
    ports:
      - '50000:27017'
    volumes:
      - './restaurants.json:/restaurants.json'
      - './setup.js:/docker-entrypoint-initdb.d/00_setup.js'
      - './seed.sh:/docker-entrypoint-initdb.d/01_seed.sh'
    command: '--replSet rs'

  slave1:
    image: 'mongo:3.4'
    ports:
      - '50001:27017'
    command: '--replSet rs'

  slave2:
    image: 'mongo:3.4'
    ports:
      - '50002:27017'
    command: '--replSet rs'

seed.sh

# ...
_wait "slave1"
_wait "slave2"
echo "Starting to import data..."
mongoimport --host="rs/master:27017,slave1:27017,slave2:27017" --db db --collection restaurants --drop --file /restaurants.json > /dev/null
echo "Done."

日志

master_1  | /usr/local/bin/docker-entrypoint.sh: running /docker-entrypoint-initdb.d/01_seed.sh
master_1  | Waiting for slave1...
master_1  | .
master_1  | Done.
master_1  | Waiting for slave2...
master_1  | Done.
master_1  | Starting to import data...
master_1  | 2017-11-26T16:06:39.148+0000        [........................] db.restaurants       0B/11.3MB (0.0%)
master_1  | 2017-11-26T16:06:39.653+0000        [........................] db.restaurants       0B/11.3MB (0.0%)
master_1  | 2017-11-26T16:06:39.653+0000        Failed: error connecting to db server: no reachable servers
master_1  | 2017-11-26T16:06:39.653+0000        imported 0 documents
mongoreplication_master_1 exited with code 1

Answer 1

这个问题很老但我最近遇到了同样的问题，值得注意的是mongo docker-entrypoint.sh脚本会在initDb阶段删除--replicaSet参数，请参阅：

https://github.com/docker-library/mongo/blob/master/3.6/docker-entrypoint.sh#L237

因此，您无法连接到运行init脚本的主机，您可以创建另一个容器，其唯一目的是初始化复制集，然后覆盖docker-entrypoint.sh

种子mongodb副本集

1 个答案: