/etc/cobbler/power/power_virsh.template is in cobbler-common 2.4.1-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | ## Set proper virsh operation
#if $power_mode == "on"
#set operation = "start"
#else
#set operation = "destroy"
#end if
## Build connection URI
## driver[+transport]://[username@][hostname][:port]/[path][?extraparameters]
## Determine requested driver to use (defaults to 'qemu')
#if $power_address and $power_address.count(':') > 0
#set (driver, power_address) = $power_address.split('://', 1)
#else
#set driver = "qemu"
#end if
## Was a username requested (defaults to '')?
#if $power_user
#set $username = "%s@" % $power_user
#else
#set $username = ""
#end if
## Default to localhost
#if $username and $power_address is None or $power_address == ""
#set $power_address = "localhost"
#end if
## Perform requested action
## NOTE - may require additional setup by sys-admin to enable passwd-less operation
domstate=\$(/usr/bin/virsh --connect $driver://$username$power_address/system domstate $power_id)
if [ "$operation" = "destroy" -a "$domstate" = "running" -o "$operation" = "start" -a "$domstate" = "shut off" ]; then
/usr/bin/virsh --connect $driver://$username$power_address/system $operation $power_id
fi
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