Elasticsearch Configuration

Introduction

Elasticsearch is a distributed search and analytics engine designed for scalability and real-time data processing. This guide provides the necessary steps to install, configure, and use Elasticsearch in the UnoPim project.

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Installing Elasticsearch on Ubuntu Server

Follow the steps below to install Elasticsearch (v8.x) on Ubuntu 22.04 or 24.04:

🔎 Note: Before proceeding, check if Elasticsearch is already installed:

dpkg -l | grep elasticsearch
# or
elasticsearch --version

• If a version is displayed → Elasticsearch is already installed, skip installation.
• If no output → continue with installation.

Step 1: Install Required Dependencies

sudo apt-get update
sudo apt-get install apt-transport-https curl gnupg -y

Step 2: Add Elasticsearch GPG Key

curl -fsSL https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo gpg --dearmor -o /usr/share/keyrings/elasticsearch-keyring.gpg

Step 3: Add Elasticsearch Repository

echo "deb [signed-by=/usr/share/keyrings/elasticsearch-keyring.gpg] https://artifacts.elastic.co/packages/8.x/apt stable main" | sudo tee /etc/apt/sources.list.d/elastic-8.x.list

Step 4: Install Elasticsearch

sudo apt-get update
sudo apt-get install elasticsearch -y

Step 5: Enable and Start Elasticsearch

sudo systemctl daemon-reload
sudo systemctl enable elasticsearch.service
sudo systemctl start elasticsearch.service
sudo systemctl status elasticsearch.service

Step 6: Verify Installation

curl 'http://localhost:9200'

You should see a JSON response with cluster information.

Step 7: Optimize Linux Kernel Settings

Elasticsearch requires a higher vm.max_map_count value. Run:

sudo sysctl -w vm.max_map_count=262144
echo "vm.max_map_count=262144" | sudo tee /etc/sysctl.d/elasticsearch.conf
sudo systemctl restart elasticsearch

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Configuring UnoPim to Use Elasticsearch

Environment Variables

Add the following settings to your .env file:

ELASTICSEARCH_ENABLED=true
ELASTICSEARCH_CONNECTION=default
ELASTICSEARCH_HOST=localhost:9200
ELASTICSEARCH_USER=
ELASTICSEARCH_PASS=
ELASTICSEARCH_API_KEY=
ELASTICSEARCH_CLOUD_ID=
ELASTICSEARCH_INDEX_PREFIX=unopim_testing

Explanation of Variables

• ELASTICSEARCH_ENABLED: Enables or disables Elasticsearch (true / false)
• ELASTICSEARCH_CONNECTION: Type of connection (default, cloud, or api)
• ELASTICSEARCH_HOST: Server location (localhost:9200 or elastic.example.com:9200)
• ELASTICSEARCH_USER / ELASTICSEARCH_PASS: Basic auth credentials (optional)
• ELASTICSEARCH_API_KEY: Base64-encoded API key (optional)
• ELASTICSEARCH_CLOUD_ID: Required only for Elastic Cloud deployments
• ELASTICSEARCH_INDEX_PREFIX: Prefix for indices (e.g., unopim_dev_, unopim_prod_)

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Cache Configuration

After updating .env, run:

php artisan config:cache

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Indexing Commands

• Clear Indexes

php artisan unopim:elastic:clear

⚠️ Remove all indexed data and indexes for categories and products.

• Index Products

php artisan unopim:product:index

• Index Categories

php artisan unopim:category:index

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