In my business, I am very often not allowed to use public clouds because of data privacy reasons. This means, I need to create my own cloud with all the services that are needed to actually work in a IT driven DevOps environment.
Is there a comprehensive list of software, which offer on-prem solutions? It does not have to be open-source or free.
A good example would be some Atlassian software, like Jira, which is available as on-prem version.
Do you need a “cloud”, as in a programmatic API to access and provision a pile of compute and storage? Or do you mean a “cloud” as in a bunch of locally hosted productivity tools?
The first case, creating a pool of resources with API access to deploy VMs, can be accomplished with something like CloudStack or OpenStack. This is what you would want if you are just handing off compute and storage resources for other teams to provision and deploy software on.
If you are managing internal IT resources and software, especially critical infrastructure like DNS, NTP, virtual routers/firewalls, identity management platforms, then you probably want a a hypervisor solution like Proxmox, or Nutanix or VMware if you have need of the extra features and have the budget for it.
My base infrastructure and productivity suite looks like this: