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How to install an Elastic Enterprise Search (Appsearch) on Ubuntu?

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How to install an Elastic Enterprise Search (Appsearch) on Ubuntu?
Developing a Text based search application is a tideous and time-consuming job. Elastic - Enterprise search is easy to use solution built on top of elastic search to provide search features. Self-managed Enterprise search installation steps for the Ubuntu server are explained here.

Introduction:

Elasticsearch is the heart of the Elastic Stack, providing very powerful search, aggregation and analytics capabilities. App Search is a part of the Elastic Enterprise Search solution and can be deployed either on the cloud or on-premise. It should be noted that it is free but not open-sourced.

Flow diagram:


flow diagram

Prerequisites :

  • Ubuntu Server

Steps:

Step 1: Install Elasticsearch and Kibana

To install Elasticsearch and Kibana follow the steps in the below reference page.

Ref – How to configure Elasticsearch and Kibana setup

  • Identify the exact version of Elasticsearch (for example: 8.3.2 ) and try to download the same version of enterprise search. Otherwise it will lead to conflicts.

1wget https://artifacts.elastic.co/downloads/enterprise-search/enterprise-search-8.3.2.deb

  • Install it by executing the following command.

1apt install ./enterprise-search-8.3.2.deb

  • Navigate to Kibana configuration directory.

cd/etc/kibana

  • Update the kibana.yml with following enterpriseSearch host configurations.

enterpriseSearch.host: http://localhost:3002

  • Navigate to Enterprise search configuration directory.
    cd /usr/share/enterprise-search/config

  • Update the enterprisesearch.yml with following configurations.

1allow_es_settings_modification: true 2secret_management.encryption_keys: [ENCRYPTION_KEYS] 3elasticsearch.username: elastic 4elasticsearch.password: <ELASTIC_USER_PASSWORD> 5elasticsearch.host: https://127.0.0.1:9200 6elasticsearch.ssl.enabled: true 7elasticsearch.ssl.certificate_authority: <PATH_TO_CERTIFICATE> 8kibana.external_url: http://localhost:5601

  • also update the enterprisesearch.yml with following ent_search.listen host and port configurations.

ent_search.listen_host: 0.0.0.0
ent_search.listen.port: 3002

  • A sample Enterprise search configuration can be found in following git repository file.

  • Navigate to Enterprisesearch installation directory and run the following script.

1cd /usr/share/enterprise-search 2bin/enterprise-search

If java is not found error occurs . run sudo apt install default-jre.

A security key prompt on the screen. Please save the key in a text file .

Result:

  • To check enterprise search is running, In kibana Enterprise search > App search.



result

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