python with docker elasticsearch

elasticsearch

1. pull and run

   1. pull

       # docker pull elasticsearch
      

   2. simply

       # docker run -d -p 9200:9200 9300:9300 --name ges elasticsearch
      

   3. pass flags

       # docker run -d elasticsearch -Des.node.name="TestNode"
      

   4. provide config

       # docker run -d -v "$PWD/config":/usr/share/elasticsearch/config elasticsearch
      

   5. persist data

       # docker run -d -v "$PWD/esdata":/usr/share/elasticsearch/data elasticsearch
      

2. browse http://localhost:9200/

   1. output

       {
         "name" : "Conrad Josten",
         "cluster_name" : "elasticsearch",
         "cluster_uuid" : "rFYCofG9QQmEDLLzdVSsOw",
         "version" : {
           "number" : "2.4.1",
           "build_hash" : "c67dc32e24162035d18d6fe1e952c4cbcbe79d16",
           "build_timestamp" : "2016-09-27T18:57:55Z",
           "build_snapshot" : false,
           "lucene_version" : "5.5.2"
         },
         "tagline" : "You Know, for Search"
       }
      

python with elasticsearch

1. install package

   1. run

       # pip install elasticsearch
      

   2. demo code

       from datetime import datetime
       from elasticsearch import Elasticsearch
       es = Elasticsearch()
      
       doc = {
           'author': 'kimchy',
           'text': 'Elasticsearch: cool. bonsai cool.',
           'timestamp': datetime.now(),
       }
       res = es.index(index="test-index", doc_type='tweet', id=1, body=doc)
       print(res['created'])
      
       res = es.get(index="test-index", doc_type='tweet', id=1)
       print(res['_source'])
      
       es.indices.refresh(index="test-index")
       res = es.search(index="test-index", body={"query": {"match_all": {}}})
       print("Got %d Hits:" % res['hits']['total'])
       for hit in res['hits']['hits']:
           print("%(timestamp)s %(author)s: %(text)s" % hit["_source"])
      

   3. output

       True
       {u'text': u'Elasticsearch: cool. bonsai cool.', u'author': u'kimchy', u'timestamp': u'2016-10-22T15:56:21.202901'}
       Got 1 Hits:
       2016-10-22T15:56:21.202901 kimchy: Elasticsearch: cool. bonsai cool.