Chapter 8. Disconnected environment
Disconnected environment is a network restricted environment where Operator Lifecycle Manager (OLM) cannot access the default Operator Hub and image registries, which require Internet connectivity.
Red Hat supports deployment of OpenShift Container Storage in disconnected environments where OpenShift Container Platform is installed in restricted networks.
When you install OpenShift Container Storage in a restricted network environment, apply a custom Network Time Protocol (NTP) configuration to the nodes, because by default, internet connectivity is assumed in OpenShift Container Platform and chronyd is configured to use
*.rhel.pool.ntp.org servers. See Red Hat Knowledgebase article and Configuring chrony time service for more details.
For more information, see Preparing to deploy OpenShift Container Storage in disconnected environments.