Error: aws_elb DuplicateLoadBalancerName

[alljames]

/kind bug

What happened: In a multi-cluster environment, error occurred when applying a new cluster:

DEBU[0073] Error: Error applying plan:  app=tarmak module=terraform std=err
DEBU[0073]                                               app=tarmak module=terraform std=err
DEBU[0073] 1 error occurred:                             app=tarmak module=terraform std=err
DEBU[0073] 	* module.kubernetes.aws_elb.kubernetes_master: 1 error occurred:  app=tarmak module=terraform std=err
DEBU[0073] 	* aws_elb.kubernetes_master: DuplicateLoadBalancerName: Load Balancer named env01mercher-cluster01m-api already exists and it is configured with different parameters.  app=tarmak module=terraform std=err

What you expected to happen: New ELB to be configured for second cluster

How to reproduce it (as minimally and precisely as possible): Apply a multi-cluster environment with a 12-character name (e.g. bugtestenv00) Within this environment, apply a cluster with a 16-character name (e.g. bugtestcluster01) Within same environment, apply a cluster with the same 16-character name (but alter last character) (e.g. bugtestcluster02).

Anything else we need to know?: It seems this is down to the fact that the cluster name gets truncated to produce the load balancer name, which causes a naming conflict.

AWS docs show that an ELB name of up to 32 characters is allowed