When configuring LifeKeeper on AWS, typically the Recovery Kit for EC2 or Recovery Kit for Route 53 is used. Both use the AWS CLI to control AWS services; however, there are some cases where these ARKs cannot be used.
- You cannot make configuration changes via the AWS CLI due to security requirements.
- You want to access clients with a DNS name in an environment with no Internet connection (Route 53 does not currently support VPC endpoint (PrivateLink).
In such cases, the combination of AWS Network Load Balancer (NLB) and LB Health Check Kit provides a switching mechanism similar to that of Azure and GCP. Clients access the NLB DNS name (resolved within AWS). Also, by combining the NLB health check with the LB Health Check Kit, traffic is forwarded to a node that receives the health probe, enabling the switching of the connection destination.
For technical details, see AWS – Using a Network Load Balancer
Post your comment on this topic.