How To Install mistral-event-engine on Ubuntu 20.04
Introduction
In this tutorial we learn how to install mistral-event-engine on Ubuntu 20.04.
What is mistral-event-engine
mistral-event-engine is:
Mistral is a workflow service. Most business processes consist of multiple distinct interconnected steps that need to be executed in a particular order in a distributed environment. One can describe such process as a set of tasks and task relations and upload such description to Mistral so that it takes care of state management, correct execution order, parallelism, synchronization and high availability. Mistral also provides flexible task scheduling so that it can run a process according to a specified schedule (i.e. every Sunday at 4.00pm) instead of running it immediately. Such set of tasks and relations between them is called a workflow.
This package contains the Event Engine.
Package: mistral-event-engine Architecture: all Version: 10.0.0~b3~git2020041013.a7da00d7-0ubuntu1 Priority: extra Section: universe/net Source: mistral Origin: Ubuntu Maintainer: Ubuntu Developers [email protected] Original-Maintainer: Debian OpenStack [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 30 Depends: adduser, mistral-common (= 10.0.0~b3~git2020041013.a7da00d7-0ubuntu1) Filename: pool/universe/m/mistral/mistral-event-engine_10.0.0~b3~git2020041013.a7da00d7-0ubuntu1_all.deb Size: 5224 MD5sum: 554534af72773dab0cb49052b84a34f0 SHA1: 28c633f018bab484d1d04e26f36ec4398496f84a SHA256: 78bf74239592c6afc45c8ec87320209cf6b0474151c2889c0b6070a033e2c5ad Homepage: https://github.com/openstack/mistral Description-en: OpenStack Workflow service - Event Engine Mistral is a workflow service. Most business processes consist of multiple distinct interconnected steps that need to be executed in a particular order in a distributed environment. One can describe such process as a set of tasks and task relations and upload such description to Mistral so that it takes care of state management, correct execution order, parallelism, synchronization and high availability. Mistral also provides flexible task scheduling so that it can run a process according to a specified schedule (i.e. every Sunday at 4.00pm) instead of running it immediately. Such set of tasks and relations between them is called a workflow.
This package contains the Event Engine.
There are three methods to install mistral-event-engine 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 mistral-event-engine Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install mistral-event-engine using apt-get by running the following command:
sudo apt-get -y install mistral-event-engine
Install mistral-event-engine Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install mistral-event-engine using apt by running the following command:
sudo apt -y install mistral-event-engine
Install mistral-event-engine 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 mistral-event-engine using aptitude by running the following command:
sudo aptitude -y install mistral-event-engine
How To Uninstall mistral-event-engine on Ubuntu 20.04
To uninstall only the mistral-event-engine package we can use the following command:
sudo apt-get remove mistral-event-engine
Uninstall mistral-event-engine And Its Dependencies
To uninstall mistral-event-engine and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove mistral-event-engine
Remove mistral-event-engine Configurations and Data
To remove mistral-event-engine configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge mistral-event-engine
Remove mistral-event-engine configuration, data, and all of its dependencies
We can use the following command to remove mistral-event-engine configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge mistral-event-engine
References
Summary
In this tutorial we learn how to install mistral-event-engine package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
