Spot instances on 3Engines Cloud[🔗](#spot-instances-on-brand-name "Permalink to this headline")
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Spot instance is resource similar to Amazon EC2 Spot Instances or Google Spot VMs. In short, user is provided with unused computational resources for a discounted price but those resources can be terminated on a short time notice whenever on-demand usage increases. The main use case are ephemeral workflows which can deal with being terminated unexpectedly and/or orchestration platforms which can deal with forced scaling down of available resources e.g. Kubernetes clusters.

What We Are Going To Cover[🔗](#what-we-are-going-to-cover "Permalink to this headline")
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> * How to create spot instances
> * Additional configuration via tags
> * What is the expected behaviour

Prerequisites[🔗](#prerequisites "Permalink to this headline")
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No. 1 **Account**

You need a 3Engines Cloud hosting account with access to the Horizon interface: <https://horizon.3Engines.com>

No. 2 **Available exclusively on WAW3-2 cloud**

When using spot instances, be sure to work only on WAW3-2 cloud:

![waw3-2-cloud-activated.png](../_images/waw3-2-cloud-activated.png)

No. 3 **Using quotas and flavors**

For quotas, see this article: [Dashboard Overview – Project Quotas And Flavors Limits on 3Engines Cloud](Dashboard-Overview-Project-Quotas-And-Flavors-Limits-on-3Engines-Cloud.html.md)

No. 3 **OpenStack CLI client**

If you want to interact with 3Engines Cloud cloud using OpenStack CLI client, you need to have it installed. Check one of these articles: