无法从一个容器连接到另一个容器

我有运行3个docker集装箱。 应用程序，mongodb和elasticsearch。

当我从应用程序连接到mongodb它看起来像这样：

mongoose.connect('mongodb://<name_of_the_container>/<database_name>'); 

当我尝试从应用程序连接到elasticsearch它不起作用：

 const esOptions = { log: 'error' }; esOptions.host = '3dominatores:9200'; const esClient = new elasticsearch.Client(esOptions); 

它在连接时不会出现任何错误，但当我尝试访问elasticsearch时，它响亮地响起： Error: No Living connections 。

我的docker-compose.yml如下所示：

 version: "2" services: 3dominator: build: . image: 3dominator:0.1 container_name: 3dominator environment: NODE_ENV: development DB_ENV: container ports: - "3004:3004" volumes: - ./src:/app/src links: - 3dominatordb - 3dominatores 3dominatordb: image: mongo:3.4.1 volumes: - ./data/mongodb/db:/data/db ports: - "27017:27017" container_name: 3dominatordb 3dominatores: image: elasticsearch:latest ports: - "9200:9200" - "9300:9300" environment: ES_JAVA_OPTS: "-Xmx256m -Xms256m" networks: - elk container_name: 3dominatores links: - 3dominatordb networks: elk: driver: bridge 

PS：我是docker和elasticsearch新手

编辑

我发现上面的这个错误：

 Elasticsearch ERROR: 2017-03-23T15:45:04Z Error: Request error, retrying POST http://3dominatores:9200/projects/project/58d3ed8059ff2d001e5ae4a2 => socket hang up at Log.error (/app/node_modules/elasticsearch/src/lib/log.js:225:56) at checkRespForFailure (/app/node_modules/elasticsearch/src/lib/transport.js:240:18) at HttpConnector.<anonymous> (/app/node_modules/elasticsearch/src/lib/connectors/http.js:162:7) at ClientRequest.wrapper (/app/node_modules/lodash/lodash.js:4968:19) at emitOne (events.js:96:13) at ClientRequest.emit (events.js:188:7) at Socket.socketOnEnd (_http_client.js:345:9) at emitNone (events.js:91:20) at Socket.emit (events.js:185:7) at endReadableNT (_stream_readable.js:974:12) at _combinedTickCallback (internal/process/next_tick.js:74:11) at process._tickDomainCallback (internal/process/next_tick.js:122:9) /app/src/models/ProjectModel.js:56 if (err) throw err; ^