Elasticsearch config for Icelandic in Wagtail

README.md

1. pip install requests-aws4auth
2. Add AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, ELASTICSEARCH_INDEX_NAME and ELASTICSEARCH_HOST variables to your environment
3. Import the variables to your settings file
4. Add the WAGTAILSEARCH_BACKENDS configuration to your settings file

production.py

# production settings file
from elasticsearch import RequestsHttpConnection
from requests_aws4auth import AWS4Auth

# You will need to import AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, ELASTICSEARCH_INDEX_NAME and ELASTICSEARCH_HOST from your environment
# You will also need to allow connections from your server to the elasticsearch instance in AWS

WAGTAILSEARCH_BACKENDS = {
    'default': {
        'BACKEND': 'wagtail.search.backends.elasticsearch6',
        'INDEX': ELASTICSEARCH_INDEX_NAME,
        'TIMEOUT': 120,
        'HOSTS': [{
            'host': ELASTICSEARCH_HOST,
            'port': 443,
            'use_ssl': True,
            'verify_certs': True,
            'http_auth': AWS4Auth(AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, 'eu-west-1', 'es'),
        }],
        'OPTIONS': {
            'connection_class': RequestsHttpConnection,
        },
        'INDEX_SETTINGS': {
            'settings': {
                'analysis': {
                    'analyzer': {
                        'ngram_analyzer': {
                            'type': 'custom',
                            'tokenizer': 'lowercase',
                            'filter': ['folding', 'ngram']
                        },
                        'edgengram_analyzer': {
                            'type': 'custom',
                            'tokenizer': 'lowercase',
                            'filter': ['folding', 'edgengram']
                        }
                    },
                    'tokenizer': {
                        'ngram_tokenizer': {
                            'type': 'nGram',
                            'min_gram': 3,
                            'max_gram': 15,
                        },
                        'edgengram_tokenizer': {
                            'type': 'edgeNGram',
                            'min_gram': 2,
                            'max_gram': 15,
                            'side': 'front'
                        }
                    },
                    'filter': {
                        'ngram': {
                            'type': 'nGram',
                            'min_gram': 3,
                            'max_gram': 15
                        },
                        'edgengram': {
                            'type': 'edgeNGram',
                            'min_gram': 1,
                            'max_gram': 15
                        },
                        'folding': {
                            'type': 'standard',

                        }
                    }
                }
            }
        }
    }
}