On 03/31/13 14:58, Dirk Engling wrote:
On 31.03.13 22:01, Miroslav Lachman wrote:
So I guess, I am out of luck here, because users used to think of their
jails as what they saw in the hostname field on jls. If I am writing
tools that use jail_getid to map the jailname to the jid, it will never
match that hostname and I also can not copy the hostname to the jailname.
I understand what you are talking about, but jails in these days are
something different from what jails were at the begining in 4.x days and
users must accept that jailname is something different than hostname.
In these days, you can have jails with many IP addresses or without IP
address. Hostname needn't to be unique etc.
Dot (.) is not allowed in jailname because of hierarchical jails,
where dot is used as hierarchy separator.
Humm, this seems a strange thing to answer to my question. Once you see
jails as virtual servers (which I understand is not the only way to do,
but the biased way I and most jail users I talk to happen to deploy them
in huge quantities), the natural approach to name them is via their
hostname. I find it hard to grasp to tell them "don't" ;)
And still I find the choice of '.' as a separator unfortunate, '/'
springs in mind, but there might have been reasons.
It just seemed like the natural thing to do. Possibly inspired by
sysctl, but honestly I don't recall. I hadn't considered that jails
would be named after the hostname, probably because I'd never done that
with my own jails or non-jail virtualization.
- Jamie
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