Plugin `Ingest User Agent Processor` is installed by default for Elasticsearch (ELK) on AWS. It is not the case in Localstack and think we basically expect it.

In addition, I was not able to install it manually through command `bin/elasticsearch-plugin install ingest-user-agent` as bin/elasticsearch-plugin is missing.
import os
import localstack_client.config
VERSION = '0.8.10'
if 'DEFAULT_REGION' not in os.environ:
    os.environ['DEFAULT_REGION'] = 'us-east-1'
DEFAULT_REGION = os.environ['DEFAULT_REGION']
REGION_LOCAL = 'local'
ENV_DEV = 'dev'
DEFAULT_PORT_APIGATEWAY_BACKEND = 4566
DEFAULT_PORT_KINESIS_BACKEND = 4565
DEFAULT_PORT_DYNAMODB_BACKEND = 4564