[OLD] Changing from TCP to TCP Proxy doesn't work

Moved from: https://github.com/swisstxt/cloudstack-cloud-controller-manager/issues/8

I tried changing from TCP to TCP-Proxy (with annotation).
`service.beta.kubernetes.io/cloudstack-load-balancer-proxy-protocol: enabled`

Trying this ensuring the loadbalancer failed with:

`"Error creating load balancer (will retry): failed to ensure load balancer for service kube-system/traefik-ingress-service: error
creating load balancer rule a9a6465af03a211e9886a02001c1a00c-tcp-proxy-80: CloudStack API error 537 (CSExceptionErrorCode: 9999): The range specified, 80-80, conflicts with rule 37282 which has 80-80*`

Likely the API Call _"create"_ is called and not _"edit"_.

Start by tracing the load balancer ensure flow for the `cloudstack-load-balancer-proxy-protocol` annotation and the API operation that handles the reported port conflict. The issue names no files or tests; done means changing an existing TCP rule to TCP Proxy without the CloudStack 537 conflict.

Written by the indexing model from the issue text.