Cannot connect to elasticsearch on docker from golang

Question

I'm using olivere's elastic go library (https://godoc.org/gopkg.in/olivere/elastic.v5) to create a connection to elasticsearch like so:

addr = "http://172.17.0.2:9200"
client, err := elastic.NewClient(elastic.SetURL(addr))

and am getting this error:

health check timeout: no Elasticsearch node available

Elasticsearch is running in a docker container and I am able to curl it from both my local machine and from the docker container. However, the go code (running on the docker container) is not able to connect to it.

curl -s -XGET 'http://172.17.0.2:9200/_nodes/http?pretty=1'
{
  "_nodes" : {
    "total" : 1,
    "successful" : 1,
    "failed" : 0
  },
  "cluster_name" : "elasticsearch",
  "nodes" : {
    "pGBN2DBISgSZ8hd9lFgmHw" : {
      "name" : "pGBN2DB",
      "transport_address" : "127.0.0.1:9300",
      "host" : "127.0.0.1",
      "ip" : "127.0.0.1",
      "version" : "5.6.4",
      "build_hash" : "8bbedf5",
      "roles" : [
        "master",
        "data",
        "ingest"
      ],
      "http" : {
        "bound_address" : [
          "0.0.0.0:9200"
        ],
        "publish_address" : "172.17.0.2:9200",
        "max_content_length_in_bytes" : 104857600
      }
    }
  }
}

I'm using Docker for Mac. The publish address and IP are off, not sure if that has something to do with it. Would appreciate any help!

Satya · Accepted Answer · 2017-11-17 01:06:22Z

1

Edit /etc/elasticsearch/elasticsearch.yml to add the following line:

network.host: 0.0.0.0

This will allow connections from other IPs.

Possible duplicate of This question

answered Nov 17, 2017 at 1:06

Satya

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1 Comment

PeeDi Over a year ago

you will also need to add discovery.type: single-node or discovery.seed_hosts : ["localhost", "127.0.0.1"]

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