es_client Documentation

You may wonder why this even exists, as at first glance it doesn’t seem to make anything any easier than just using Elasticsearch to build a client connection. I needed to be able to reuse the more complex schema validation bits I was employing, namely:

  • master_only detection

  • Elasticsearch version checking and validation, and the option to skip this.

  • Configuration value validation, including file paths for SSL certificates, meaning:

    • No unknown keys or unacceptable parameter values are accepted

    • Acceptable values and ranges are established (where known)–and easy to amend, if necessary.

So, if you don’t need these, then this library probably isn’t what you’re looking for. If you want these features, then you’ve come to the right place.

Example Usage

from es_client import Builder

config = {
    'elasticsearch': {
        'client': {
            'hosts': 'https://10.0.0.123:9200',
            'ca_certs': '/etc/elasticsearch/certs/ca.crt',
            'request_timeout': 60,
        },
        'other_settings': {
            'master_only': True,
            'username': 'joe_user',
            'password': 'password',
        }
    },
    'logging': {
        'loglevel': 'INFO',
        'logfile': '/path/to/file.log',
        'logformat': 'default',
        'blacklist': ['elastic_transport', 'urllib3']
    }
}

builder = Builder(configdict=config)

try:
    builder.connect()
except:
    # Do exception handling here...

client = builder.client

Additionally, you can read from a YAML configuration file:

---
elasticsearch:
  client:
    hosts: https://10.0.0.123:9200
    ca_certs: /etc/elasticsearch/certs/ca.crt
    request_timeout: 60
  other_settings:
    master_only: true
    username: joe_user
    password: password
logging:
  loglevel: INFO
  logfile: /path/to/file.log
  logformat: default
  blacklist: ['elastic_transport', 'urllib3']

from es_client import Builder

builder = Builder(configfile='/path/to/es_client.yml')

try:
    builder.connect()
except:
    # Do exception handling here...

client = builder.client

The same schema validations apply here as well.

License

Copyright (c) 2022-2024 Aaron Mildenstein

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Contents

Indices and tables