How to Install Elasticsearch on Debian 11 Bullseye

Here is a sequence of commands for installing and testing Elasticsearch 7 on Debian 11 Bullseye.

CURL, if not installed.

sudo apt install curl -y

JAVA, if not installed:

sudo apt install default-jdk

Elasticsearch installation chain:

// GPG key
wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -

// official Elastic repository
sudo sh -c 'echo "deb https://artifacts.elastic.co/packages/7.x/apt stable main" > /etc/apt/sources.list.d/elastic-7.x.list'

// Update install
sudo apt update && sudo apt install elasticsearch

// Start and enable on system boot
sudo systemctl enable elasticsearch.service --now

// Test
curl -X GET "localhost:9200/"