[BUG] <title> generation of non working peers

[ptempier]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

trying to set a list of hostnames in the peer commande.

notpossible to use fqdn, because the interface name can only be alphanum charaters
so trying to trim the fqdn to keep alphanum (includes triming . )
But now the generated name is > 15 characters, which is also not supported
triming excess characters

still not solved, because the conf file are generated prefixed by peer_,
and this filename becomes the interface name
and now i have a mandatory non alphanum character as well as 4 extra chars

Expected Behavior

Other issues aren't linked to this specific container.

But please when the var PEER take a list of names instead f a number,
please dont prefix the generated hostnames by peer_ ,
If you must prefix the folder name , but not the .conf file.

Steps To Reproduce

.

Environment

- OS:
- How docker service was installed:

CPU architecture

x86-64

Docker creation

.

Container logs

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