opts = append(opts, option.GCPProjectID(projectID))
			}
		}
	}

	// Support passing extra info from node environment as metadata
	opts = append(opts, getNodeMetadataOptions(cfg.Node, cfg.CompliancePolicy)...)

	// Check if nodeIP carries IPv4 or IPv6 and set up proxy accordingly
	if network.AllIPv4(cfg.Metadata.InstanceIPs) {
		// IPv4 only
		opts = append(opts,