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ClearScale Ubuntu 26.04 LTS vs Docker on Ubuntu 18.04 LTS comparison

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Executive Summary

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

ClearScale Ubuntu 26.04 LTS
Ranking in AWS Marketplace
136th
Average Rating
10.0
Number of Reviews
5
Ranking in other categories
No ranking in other categories
Docker on Ubuntu 18.04 LTS
Ranking in AWS Marketplace
448th
Average Rating
9.6
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Featured Reviews

reviewer2855598 - PeerSpot reviewer
Cloud DevOps Engineer at a consultancy with 10,001+ employees
CIS hardening has simplified secure container workloads but AppArmor still blocks Docker by default
The CIS L1 AppArmor enforcement breaks Docker out of the box. Containers fail to start with a permission denied on the containerd task directory. There is no documentation about this. A simple note explaining that Docker users need to either update the runc AppArmor profile or disable it would save a lot of debugging time. It takes a while to trace the failure back to AppArmor blocking runc writes to /run/containerd/.
Arkajyoti Misra - PeerSpot reviewer
Associate Director at Husk Power Systems
Containerization has accelerated testing cycles and consistently reduced time to market
Docker on Ubuntu 18.04 LTS is a very mature product, and I don't think there is a lot of improvement that they need to do on their end. The Docker team is coming up with new features, and integration with the IDE, for example, would be amazing. Support on Windows is not so great from Docker, so that is something that they could examine. I chose nine out of ten for Docker on Ubuntu 18.04 LTS because I think they could improve a little more on optimization. It sometimes demands a lot of RAM and computing power, so that is one area that the Docker team could improve upon.

Quotes from Members

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

Pros

"ClearScale Ubuntu 26.04 LTS is an excellent choice for organizations adopting cloud-native technologies and modern DevOps practices."
"The hourly software charge is small relative to the engineering time we used to spend building and maintaining our own hardened AMI."
"The same-day engineering support has been very valuable."
"Once you get that launch template dialed in, the image is incredibly solid."
"The pre-applied CIS L1 benchmark is the main selling point, as getting a hardened baseline without manual effort is genuinely useful and the Ubuntu 26.04 LTS base also means I'm on a supported, up-to-date kernel with long-term security patches."
"Docker on Ubuntu 18.04 LTS positively impacts my organization because we have sped up our development very quickly, and our team has grown quickly, not only because of Docker but also due to Docker."
"Docker on Ubuntu 18.04 LTS makes both managing and deploying that service easier for me."
"Ease of use from the developer's point of view is the best feature."
"Fast deployment is the main benefit."
 

Cons

"It'd be cool to have more detailed changelogs with each new release so we can see exactly what packages got updated without having to boot up a test instance and diff it ourselves."
"Enterprise management and compliance tooling could be more comprehensive out of the box."
"Because the firewall ships default-deny, the first launch in a new environment takes a little planning to open the exact ports the app and load balancer health checks need."
"The CIS L1 AppArmor enforcement breaks Docker out of the box."
"Support on Windows is not so great from Docker, so that is something that they could examine."
"Docker on Ubuntu 18.04 LTS is stable enough, but again, it is very old."
"Maybe the daemons need to be improved, as they consume a lot of resources for building and running images."
"I have not seen a return on investment that I can quantify, and I do not have specific metrics to share regarding fewer employees needed, money saved, or time saved."
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Questions from the Community

What is your experience regarding pricing and costs for ClearScale Ubuntu 26.04 LTS?
The hourly premium is honestly negligible compared to the salary hours I was wasting building, patching, and maintaining my own custom images. If you have a decent-sized fleet, look at the total co...
What needs improvement with ClearScale Ubuntu 26.04 LTS?
It would be cool to have more detailed changelogs with each new release so I can see exactly what packages got updated without having to boot up a test instance and diff it myself.
What is your primary use case for ClearScale Ubuntu 26.04 LTS?
I run a bunch of stateless REST APIs and web apps in AWS behind an Application Load Balancer. Everything lives in Auto Scaling Groups (ASGs). I use this AMI as the default base for those instances ...
What is your experience regarding pricing and costs for Docker on Ubuntu 18.04 LTS?
My experience with the pricing, setup cost, and licensing of Docker on Ubuntu 18.04 LTS is very good. I do not see a lot of challenges there, and it definitely provides value for money.
What needs improvement with Docker on Ubuntu 18.04 LTS?
Docker on Ubuntu 18.04 LTS is a very mature product, and I don't think there is a lot of improvement that they need to do on their end. The Docker team is coming up with new features, and integ...
What is your primary use case for Docker on Ubuntu 18.04 LTS?
My main use case for Docker on Ubuntu 18.04 LTS is containerizing our applications so that we are able to test it before deployment. Even the developers do a lot of development level testing before...
 

Overview

Find out what your peers are saying about ClearScale Ubuntu 26.04 LTS vs. Docker on Ubuntu 18.04 LTS and other solutions. Updated: October 2026.
921,523 professionals have used our research since 2012.