Overview
On-premises clusters refer to Kubernetes clusters that are provisioned by UCS but running on your on-premises data center. You only need to prepare the required physical resources. The cloud platform will be responsible for installing Kubernetes software and connecting your clusters to UCS.
On-premises clusters are compatible with multiple underlying infrastructures. They can be deployed on virtualized types such as BMS and VMware. The container network can be connected to the underlying network. CSI can be used to connect to multiple underlying storage services (such as VMware vSphere) to provide persistent storage.
Figure 1 shows the on-premises cluster management process.
Network Access Methods
The cluster network agent is used to connect clusters to UCS, as shown in Figure 2. You do not need to enable any inbound port on the firewall. Instead, only the cluster agent program is required to establish sessions with UCS in the outbound direction.
- Over a public network: flexibility, cost-effectiveness, and easy access
- Over a private network: high speed, low latency, stability, and security
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