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OpenNebula vs Spacelift comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 17, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

OpenNebula
Ranking in Cloud Management
6th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
15
Ranking in other categories
No ranking in other categories
Spacelift
Ranking in Cloud Management
20th
Average Rating
8.0
Reviews Sentiment
7.2
Number of Reviews
5
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2025, in the Cloud Management category, the mindshare of OpenNebula is 6.6%, down from 6.8% compared to the previous year. The mindshare of Spacelift is 0.7%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud Management
 

Featured Reviews

FOURES Jean-Philippe - PeerSpot reviewer
Reliable, simple to manage, and offers great technical support
The support of VXLAN fits with our network management. Thanks to this we can propose mixed solutions using virtual resources on OpenNebula and bare metal servers hosted in our facilities linked to each other on the sale network. This use case is very useful when some applications need bare metal power (Kubernetes workers, huge databases, AI models computations, et cetera). The cluster management is very useful for splitting our different clusters (mutual vs dedicated). We can manage deployments and capacity planning without pain. The API is also really simple and it helped us to develop the Terraform provider to manage OpenNebula like any other cloud infrastructure.
Moloko Mokubedi - PeerSpot reviewer
The GitOps feature automatically picks up changes from my GitHub projects
There are a few areas for improvement. For instance, getting notification webhooks is not easy. In the free version, there's no straightforward way to be notified once a deployment is finished. Spacelift requires creating a notification policy, which involves using the open policies framework. However, this feature is not available on the free plan. Additionally, for each new project, I need to create a new IAM role, which is not optimal. It would be better if I could use a single role for all interactions with my AWS account.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"With a single click, we could set things up and initiate them."
"OpenNebula is easy to deploy and manage compared to other solutions like OpenStack."
"The most valuable feature of OpenNebula is that it scales very well."
"The live migration feature has been great and is something we use very often."
"It is quite easy to deploy."
"What's best about OpenNebula that people like is that it's easy to deploy. It's also easy to manage. It's interesting because people choose OpenNebula over other solutions because of the ease of management."
"It's easy to integrate OpenNebula with our IT systems."
"OpenNebula is lightweight, stable, and easy to customize."
"I appreciate that I just have to connect to my AWS account with my credentials, and Spacelift handles the rest."
"Knowing the HashiCorp Configuration Language (HCL) makes it easier to use without issues."
"Spacelift is like an extension of Terraform, where everything can be visibly managed."
"A valuable feature of Spacelift is that you can attach labels, and it is a modernized tool for infrastructure deployments. It is pull request-based, and you can see all the Terraform plan and apply logs on the pull request itself, which is not available across any other CI/CD tools."
"One key feature is the Spacelift policies, which we can attach to deployments to ensure compliance with our standards."
 

Cons

"They have been saying for the past two and a half years that they would develop a feature to hot-add RAM and CPU, but it does not work."
"It should have a simple REST API like most other tools. It's the industry standard format. An XML-RPC API gives you an XML document that you have to convert and then do something with that. REST API endpoint provides outputs in a JSON document. I would also like to see support for user data or heat templates, which OpenStack offers, but OpenNebula doesn't have this yet."
"The storage feature that they have is a bit confusing."
"They should add more features like object storage."
"Backup features are only available in the enterprise edition. The community version lacks a good solution for making backups."
"The UI, monitoring, and alerting could benefit from further improvements."
"There are no payment gateways in OpenNebula."
"As with all enterprise software licensing, the pricing is not intuitive and must be negotiated; grandfathered contracts are better than anything offered today."
"If you are a small enterprise organization, below 500 people, I would not recommend it."
"The self-hosted version does not have a lot of features compared to the SaaS version, such as cloud integrations for Azure and GCP."
"In the free version, there's no straightforward way to be notified once a deployment is finished."
"Synchronization can be difficult when using older and newer versions with Kubernetes and HashiCorp."
"Spacelift currently lacks features that can help with complex type deployments and coordination for major deployments."
 

Pricing and Cost Advice

"VRA is very expensive but OpenNebula is free."
"We use the Community Edition, rather than the Enterprise Edition."
"The solution is open source so is free."
"OpenNebula gives good value for money."
"The licensing for OpenNebula used to be free, but now it's no longer free. A customer contacted me asking to move to another provider because of the changes in the licensing terms for OpenNebula. I have no information on how much the OpenNebula license is because the customer pays for it, and I only do the integration."
"OpenNebuoa has recently come up with a new subscription model that is economical and a lot of new customers are choosing this as it is an easy subscription model."
"It is a bit expensive product."
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Top Industries

By visitors reading reviews
Computer Software Company
20%
University
8%
Financial Services Firm
8%
Comms Service Provider
8%
Computer Software Company
13%
Financial Services Firm
13%
Educational Organization
11%
Media Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What do you like most about OpenNebula?
The live migration feature has been great and is something we use very often.
What needs improvement with OpenNebula?
The web interface could be better. It's not very difficult to use, but there's room for enhancement. Another area for improvement is the integration with hardware to manage the lower layer of the n...
What is your experience regarding pricing and costs for Spacelift?
I've never checked the pricing because I enjoy using it for free. Besides the notification feature, I haven't needed any paid features.
What needs improvement with Spacelift?
There are a few areas for improvement. For instance, getting notification webhooks is not easy. In the free version, there's no straightforward way to be notified once a deployment is finished. Spa...
What is your primary use case for Spacelift?
I use Spacelift to deploy my applications, particularly AWS applications and infrastructure to my personal AWS account.
 

Comparisons

 

Overview

 

Sample Customers

Akamai, BBC, Fermilab, Terradue, Surf Sara, Produban, Netways, ESA, China Mobile, BlackBerry, Deloitte, Fuze, Telefonica, Trivago, Nokia, Encore Tech, Beeks.
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Find out what your peers are saying about OpenNebula vs. Spacelift and other solutions. Updated: July 2025.
865,384 professionals have used our research since 2012.