I give Red Hat Enterprise Linux an eight out of ten. I am not a firm believer that everything is perfect right out of the gate. Everything can be improved. I am a little biased. I wish there was better support for offline environments. I understand that I am in the minority in this case, as everyone is connected to the internet now. However, as a federal contractor and integrator, we have requirements that we must meet. It is not fun having to download binaries offline and then figure out how to set up our own repository. These are not straightforward tasks like Red Hat telling me what to do. We just wish it was easier to do things like patch management. Perhaps there could be more support for air gap environments. These are not environments where we can temporarily connect to the internet. They have never seen the internet.
Depending on our customer's environment, sometimes they have GovCloud, but we still use Red Hat Enterprise Linux images there. Sometimes the customer can't use that so we use the offering from CentOS. But we still try to match it with CentOS.
The reason why some clients don't use Red Hat Enterprise Linux on the cloud is not because of security concerns. I think it's more about cost and their current contract situation. They need a low-cost, open source alternative, and our recommendation would be CentOS. However, many clients are not ready to pay for the enterprise edition of Red Hat Enterprise Linux, so they may choose to scale back their plans.
I have not used the Red Hat Enterprise Linux knowledge base strictly. I have only used the Red Hat Enterprise Linux support.
Clients who use Red Hat Enterprise Linux on the cloud, typically use AWS GovCloud. As a government integrator, we strive to design our solutions in a way that does not lock our clients into any specific cloud provider. This is why we chose Linux, as it can be run on any cloud platform. This flexibility is important to our clients from a price contract perspective. For example, Amazon provides Kubernetes services, among other things. We try to figure out open source solutions or at least architecturally determine them and provide them to our clients. For example, we can tell them that they can move all of their GovCloud data to Azure or Google Cloud. Government agencies really like Amazon right now because it is FedRAMP. However, for other classes that are not government or commercial, we try to introduce them to the CentOS perspective so that they can get a taste of the upstream.
We do not use the image builder tool provided by Red Hat. Instead, we use the one provided by Amazon. We take a base image, coordinate it with Ansible, and provide it to any environments that have used the cloud. For on-premises solutions, we strictly use manual processes.
I don't have a perspective on the golden image, which is at least with our client. The parts that we use are always evolving, so we don't really maintain the golden image. We do have a relative backup of what we deployed to, but we don't necessarily have a strict golden image.
Migrating workloads between the cloud and the data center using Red Hat Enterprise Linux is not entirely applicable to us. We did migrate from on-premises to the cloud at one point, but migrating from Red Hat Enterprise Linux on-premises to Red Hat Enterprise Linux in the cloud was not a concern for us. We knew it would be stable and fine. The main concern was migrating our customer data from our enterprise to the cloud.
If someone is looking for an open source cloud-based operating system for Linux instead of Red Hat Enterprise Linux, I would like to eventually drive them over to Red Hat Enterprise Linux, but I would recommend starting with CentOS. CentOS is a good gateway OS because it is very similar to Red Hat Enterprise Linux, and the knowledge transfer between the two is very straightforward. This makes it a good choice for users who are new to Linux, or who are looking for an OS that is compatible with Red Hat Enterprise Linux.