How To Install elastalert on Ubuntu 20.04
Introduction
In this tutorial we learn how to install elastalert on Ubuntu 20.04.
What is elastalert
elastalert is:
This package contains a simple framework for alerting on anomalies, spikes, or other patterns of interest from data in Elasticsearch.
ElastAlert works with all versions of Elasticsearch.
If you have data being written into Elasticsearch in near real time and want to be alerted when that data matches certain patterns, ElastAlert is the tool for you.
ElastAlert is designed to be reliable, highly modular, and easy to set up and configure.
It works by combining Elasticsearch with two types of components, rule types and alerts. Elasticsearch is periodically queried and the data is passed to the rule type, which determines when a match is found. When a match occurs, it is given to one or more alerts, which take action based on the match.
This is configured by a set of rules, each of which defines a query, a rule type, and a set of alerts.
There are three methods to install elastalert on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install elastalert Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install elastalert using apt-get by running the following command:
sudo apt-get -y install elastalert
Install elastalert Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install elastalert using apt by running the following command:
sudo apt -y install elastalert
Install elastalert Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install elastalert using aptitude by running the following command:
sudo aptitude -y install elastalert
How To Uninstall elastalert on Ubuntu 20.04
To uninstall only the elastalert package we can use the following command:
sudo apt-get remove elastalert
Uninstall elastalert And Its Dependencies
To uninstall elastalert and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove elastalert
Remove elastalert Configurations and Data
To remove elastalert configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge elastalert
Remove elastalert configuration, data, and all of its dependencies
We can use the following command to remove elastalert configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge elastalert
References
Summary
In this tutorial we learn how to install elastalert package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
