Kublr might be a bit more popular than CloudStack. We know about 1 link to it since March 2021 and only 1 link to CloudStack. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
You could look at the Apache Cloudstack project Https://cloudstack.apache.org/index.html. Source: about 2 years ago
The problem to me is that someone needs to maintain it. Setting it up is simple (k3s makes it very simple), but since you depend on it, if it breaks, you are in trouble as debugging is not exactly simple, so better use a supportable ready-out-of-the-box solutions like Rancher, Charmed Kubernetes or kublr incl. Support contract. They make it easier and support contracts are probably cheaper than the ingress costs... Source: about 3 years ago
OpenStack - OpenStack software controls large pools of compute, storage, and networking resources throughout a datacenter, managed through a dashboard or via the OpenStack API.
Kubernetes - Kubernetes is an open source orchestration system for Docker containers
OpenShift - OpenShift gives you all the tools you need to develop, host and scale your apps in the public or private cloud. Get started today.
Rancher - Open Source Platform for Running a Private Container Service
Google Compute Engine - Google Compute Engine is not just fast. It’s Google fast.
Amazon EC2 - Amazon Web Services offers reliable, scalable, and inexpensive cloud computing services. Free to join, pay only for what you use.