Single Node Cluster creation scripts for OpenShift 4.x as used by CodeReady Containers
Single Node OpenShift (SNO): Available through the Assisted Installer on console.redhat.com or by using the SNC scripts to manually create an OKD version, it'll create an OpenShift cluster with a single node that serves as a unified control plane and compute node. It is not lightweight, you'll need minimum 6 or 8 cores, 32GB of memory, and 120GB of storage if I recall. But it enables more than CRC which is meant to be for a single user locally - more like MiniKube or MiniShift.
crc is a tool to run containers. It manages a local OpenShift 4.x cluster or a Podman VM optimized for testing and development purposes
CodeReady Containers which allows you to spin up a reduced OpenShift node in a single VM on a desktop/laptop for getting familiar with the platform. It disables quite a few operators so it's not a full experience, but enough for a developer to get going. It doesn't have the lightest requirements but it works for the most part. By default it's recommended to have 4 cores, 12GB of memory and the disk expands to 35GB. These can be tweaked through the setup, though.
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