Network Topology: Dedicated Setup
Depending on internet access for host nodes, there are two ways to achieve a dedicated NIC setup:
Dedicated Setup with dedicated public NIC on compute nodes
When all compute nodes have their own public network access, primary_dns and secondary_dns in provision_config.yml become optional variables as the control plane is not required to be a gateway to the network. The network design would follow the below diagram:
Dedicated Setup with single NIC on compute nodes
When all compute nodes rely on the control plane for public network access, the variables primary_dns and secondary_dns in provision_config.yml are used to indicate that the control plane is the gateway for all compute nodes to get internet access. Since all public network traffic will be routed through the control plane, the user may have to take precautions to avoid bottlenecks in such a set-up.
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