replace static hostname suffix by a dynamic suffix based on hostid

[gui1117]

hostid - print the numeric identifier for the current host

it is an hexadecimal number with 8 character

this is a feature asked by orange fondation for pibox-installer. it would also solve #130 as hostname would be the real hostname without suffix.

this is implemented in this commit: gui1117@b53def6

[fheslouin]

Where did you find hostid ?

Do you mean you are completely replacing the current hostname : idb_xxx_xxx_123 ?
For our use case, 8 character suffix is too much