SSL without public IP

[bil-ash]

Obtaining a letsencrypt certificate using http challenge just requires access to any one http port which is very much available in jelastic cloudlets accessible over shared load balancer(slb). Once the certificate is obtained, this certificate can be uploaded to the slb ( https://docs.jelastic.com/custom-ssl-via-slb ), thereby providing letsencrypt ssl for custom domain without the need for external IP. SO, I REQUEST YOU TO IMPLEMENT THIS FEATURE OF LETSENCRYPT SSL WITHOUT EXTERNAL IP ASAP.
Even shared hosting services which cost<$1 per month (and can host python,nodejs and ruby apps ) also offer free letsencrypt ssl for custom domain and here jelastic which advertises that user will pay for only what the user needs requires a public paid IP for letsencrypt ssl . Looking forward to free letsencrypt for custom domain feature soon.