Re: [nfs-utils PATCH] nfs4id: a tool to create and persist nfs4 client uniquifiers

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> On Feb 10, 2022, at 8:28 AM, Benjamin Coddington <bcodding@xxxxxxxxxx> wrote:
> 
> On 8 Feb 2022, at 17:39, Steve Dickson wrote:
> 
>> On 2/8/22 4:18 PM, Chuck Lever III wrote:
>>> 
>>> 
>>>> On Feb 8, 2022, at 2:29 PM, Steve Dickson <steved@xxxxxxxxxx> wrote:
>>>> 
>>>> 
>>>> 
>>>> On 2/8/22 11:21 AM, Chuck Lever III wrote:
>>>>>> On Feb 8, 2022, at 11:04 AM, Steve Dickson <steved@xxxxxxxxxx> wrote:
>>>>>> 
>>>>>> Hello,
>>>>>> 
>>>>>> On 2/4/22 7:56 AM, Benjamin Coddington wrote:
>>>>>>> The nfs4id program will either create a new UUID from a random source or
>>>>>>> derive it from /etc/machine-id, else it returns a UUID that has already
>>>>>>> been written to /etc/nfs4-id.  This small, lightweight tool is suitable for
>>>>>>> execution by systemd-udev in rules to populate the nfs4 client uniquifier.
>>>>>>> Signed-off-by: Benjamin Coddington <bcodding@xxxxxxxxxx>
>>>>>>> ---
>>>>>>>  .gitignore               |   1 +
>>>>>>>  configure.ac             |   4 +
>>>>>>>  tools/Makefile.am        |   1 +
>>>>>>>  tools/nfs4id/Makefile.am |   8 ++
>>>>>>>  tools/nfs4id/nfs4id.c    | 184 +++++++++++++++++++++++++++++++++++++++
>>>>>>>  tools/nfs4id/nfs4id.man  |  29 ++++++
>>>>>>>  6 files changed, 227 insertions(+)
>>>>>>>  create mode 100644 tools/nfs4id/Makefile.am
>>>>>>>  create mode 100644 tools/nfs4id/nfs4id.c
>>>>>>>  create mode 100644 tools/nfs4id/nfs4id.man
>>>>>> Just a nit... naming convention... In the past
>>>>>> we never put the protocol version in the name.
>>>>>> Do a ls tools and utils directory and you
>>>>>> see what I mean....
>>>>>> 
>>>>>> Would it be a problem to change the name from
>>>>>> nfs4id to nfsid?
>>>>> nfs4id is pretty generic, too.
>>>>> Can we go with nfs-client-id ?
>>>> I'm never been big with putting '-'
>>>> in command names... nfscltid would
>>>> be better IMHO... if we actually
>>>> need the 'clt' in the name.
>>> 
>>> We have nfsidmap already. IMO we need some distinction
>>> with user ID mapping tools... and some day we might
>>> want to manage server IDs too (see EXCHANGE_ID).
>> Hmm... So we could not use the same tool to do
>> both the server and client, via flags?
>> 
>>> 
>>> nfsclientid then?
>> You like to type more than I do... You always have... :-)
>> 
>> But like I started the conversation... the naming is
>> a nit... but I would like to see one tool to set the
>> ids for both the server and client... how about
>> nfsid -s and nfsid -c
> 
> The tricky thing here is that this little binary isn't going to set
> anything, and we probably never want people to run it from the command line.
> 
> A 'nfsid -s' and 'nfsid -c' seem to want to do much more.  I feel they are
> out of scope for the problem I'm trying to solve:  I need something that
> will generate a unique value, and persist it, suitable for execution in a
> udevd rule.
> 
> Perhaps we can stop worrying so much about the name of this as I don't think
> it should be a first-class nfs-utils command, rather just a helper for udev.
> 
> And maybe the name can reflect that - "nfsuuid" ?

The client ID can be an arbitrary string, so I think not.



--
Chuck Lever







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