Hi stgt People!
We are coding a fencing daemon for the stgt target in python/zope3/grok.
To achieve this we have to parse the output of
tgtadm --lld [driver] --op show --mode target
We have two ways solve this challange:
1) Parse the output that tgtadm delivers
2) Extend tgtadm with a machine readable output
1) We have already coded a parser for the output - but it is a quite
long and explicit code and and will be ugly to maintain.
2) So we like to tend to the second solution which gives us more
generically code
If there is any interest of the community and some support from the core
programmers we will code a
tgtadm --lld [driver] --op show-json --mode target
routine for tgt that delivers a hirarchie of JSON dictionaries sort of
killer:/home/volker/workspace/tgt-0.9.6/usr# ./tgtadm --lld iscsi --op
show --mode target
{'1':
{'class' : 'target'
'name' : 'de.inqbus.storage:vmigration',
'driver' :'iscsi',
'state' : 'ready',
'nexus' : { <<<< here we stopped coding :-)
LUN information:
LUN: 0
Type: controller
SCSI ID: IET 00010000
SCSI SN: beaf10
Size: 0 MB
Online: Yes
Removable media: No
Backing store: No backing store
Account information:
ACL information:
This is only a short hack. We may find better structures to serialize
to. Please advice us on defining those structures.
The machine readable status output may be easily deserialized into
objects in all languages which support the JSON object notation.
E.G. Python, Java, PHP, Perl etc.
Best Regards
Volker
--
====================================================
inqbus it-consulting +49 ( 341 ) 5643800
Dr. Volker Jaenisch http://www.inqbus.de
Herloßsohnstr. 12 0 4 1 5 5 Leipzig
N O T - F Ä L L E +49 ( 170 ) 3113748
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