AWS EC2 which has Only IPv6 IP is not included in Service Discovery

[swe...@gmail.com]

Hello, 

Prometheus ec2_sd_config does not detect AWS EC2 which has only IPv6 (does not have  ipv4 private IP). 

Is it intended operation ?

Is there a way to have only IPv6 EC2 instance on Service discovery ?

And I found below code in prometheus/discovery/aws/ec2.go at main · prometheus/prometheus · GitHub

if err := ec2Client.DescribeInstancesPagesWithContext(ctx, input, func(p *ec2.DescribeInstancesOutput, lastPage bool) bool {
for _, r := range p.Reservations {
for _, inst := range r.Instances {
if inst.PrivateIpAddress == nil {
continue
}