To allow public access to an cluster node or to an application configured for HA or DR in AWS, specify the IP to be used in the ElasticIP attribute for the AWSIP resource. For example, if you have an application that needs to be highly available and to be accessible globally, you can use the ElasticIP attribute of the AWSIP agent to ensure both.

The following snippet is a service group configuration from a sample VCS configuration file (main.cf):

group appnetworkSG (
 	SystemList = { ip-172-34-20-109 = 0, ip-172-34-30-231 = 1 }
	 AutoStartList = { ip-172-34-20-109, ip-172-34-30-231 }
 	)

	 AWSIP AwsIp_Res (
		  PrivateIP @ ip-172-34-20-109 ="172.34.20.110"
  		PrivateIP @ ip-172-34-30-231 ="172.34.30.220"
  		ElasticIP = "52.3.20.17"
  		Device = eth0
  		AWSBinDir = "/usr/local/bin"
  		)

 	IP Ip_Res (
	  	Device = eth0
  		Address @ ip-172-34-20-109 ="172.34.20.110"
  		Address @ ip-172-34-30-231 ="172.34.30.220"
  		NetMask = "255.255.240.0"
  		)

 	NIC Nic_Res (
	  	Device = eth0
  		)

AwsIp_Res requires Ip_Res
Ip_Res requires Nic_Res