Upgrading the Db2 Operator in an air-gapped Red Hat OpenShift cluster with no bastion host

If your cluster is not connected to the internet, you can mirror images to a registry in your network-restricted environment by using a portable compute or storage device, such as a laptop or USB storage device. This task must be performed by a Red Hat OpenShift administrator. Download images from the public registries to a local file system. You can then bring the device into the network restricted environment, or transfer the files to a device within the network restricted environment and mirror the images to the local registry.