This page explains the networking requirements for an initial installation of
Google Distributed Cloud.
In your initial installation of Google Distributed Cloud, you create these virtual
machines (VMs):
One VM for an admin workstation
Four VMs for an admin cluster
Three VMs for a user cluster
In your vSphere environment, you must have a network that can support the creation of those eight VMs. Your network must also be able to support a vCenter Server and must be able to support the load balancer mode that you choose for your configuration.
Your network needs to support outbound traffic to the internet so that your
admin workstation and your cluster nodes can fetch Google Distributed Cloud
components and call certain Google services.
If you want external clients to call services in your Google Distributed Cloud
clusters, your network must support inbound traffic from the internet.
The following diagram shows one possible network topology:
Network topology (click to enlarge)
The preceding diagram has the following features:
The admin workstation is on a private network.
vCenter Server is on a public network.
The cluster nodes are on a private network.
The F5 BIG-IP load balancer is on three private networks.
The F5 BIG-IP load balancer is configured with Virtual IPs (VIPs) that
have private addresses. External clients must use public IP addresses
configured in the network address translation (NAT) device. The NAT device
uses static NAT to convert the public addresses to the internal VIPs
configured on the load balancer.
Network Time Protocol
All the VMs that are part of your Google Distributed Cloud infrastructure must
use the same
Network Time Protocol (NTP)
server.
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