es_get.py

from elasticsearch import Elasticsearch
import sys

ELASTIC_PASSWORD = sys.argv[1]

client = Elasticsearch(
    "https://localhost:9200",
    ca_certs="/etc/elasticsearch/certs/http_ca.crt",
    basic_auth=("elastic", ELASTIC_PASSWORD)
)

client.indices.refresh(index="test-index")

resp = client.search(index="test-index", query={"match_all": {}})
print("Got %d Hits:" % resp['hits']['total']['value'])
for hit in resp['hits']['hits']:
    print("%(timestamp)s %(author)s: %(text)s" % hit["_source"])