[VCL-641] VCL fails to properly trim whitespace from `virsh list --all`

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3
• Fix Version/s: 2.3.1
• Component/s: vcld (backend)
• Labels: libvirt, vcld virsh

Environment

CentOS 6.3

• Assignee: Andrew Kurth
• Reporter: Nathaniel Sherry
• Created: 04/Oct/12 14:55
• Updated: 12/Nov/12 14:26
• Resolved: 12/Nov/12 14:26

Description

Using the libvirt module, vcld executes `virsh list --all` on a vmhost, which results in the following output

Id Name State
----------------------------------------------------
19 VM1 running

(Note: This bug reporting system seems to be trimming extra spaces from the above output.)

The name of the VM ("VM1") is then extracted as " VM1", and the command `virsh dumpxml " VM1"` fails.

From looking at libvirt.pm's get_domain_info function, it looks like the expectation is that there will only be one space between the id and name columns:

my ($id, $name, $state) = $line =~ /^\s*([\d\-])\s(.?)\s+(\w+|shut off)$/g;

I have worked around this issue by adding a '+' after the \s between id and name

my ($id, $name, $state) = $line =~ /^\s*([\d\-])\s(.?)\s(\w+|shut off)$/g;