On 3/1/21 7:17 PM, Ulrich Windl wrote:
Hi!
I have a question about the VirtualDomain RA (as in SLES15 SP2):
Why does the RA "undefine", then "create" a domain instead of just "start"ing a
domain?
I mean: Assuming that an "installation" does "define" the domains, why bother with configuration
files and "create" when a simple "start" would do also?
It makes sense to clean up the certain situation to avoid the "create" failure.
Example:
1. given foobar.xml doesn't provide UUID
2. `virsh define foobar.xml`
3. `virsh create foobar.xml` <-- error: Failed to create domain from foobar.xml
Cheers,
Roger
Specifically this code:
verify_undefined() {
local tmpf
if virsh --connect=${OCF_RESKEY_hypervisor} list --all --name 2>/dev/null | grep
-wqs "$DOMAIN_NAME"
then
tmpf=$(mktemp -t vmcfgsave.XX)
if [ ! -r "$tmpf" ]; then
ocf_log warn "unable to create temp file, disk full?"
# we must undefine the domain
virsh $VIRSH_OPTIONS undefine $DOMAIN_NAME > /dev/null
2>&1
else
cp -p $OCF_RESKEY_config $tmpf
virsh $VIRSH_OPTIONS undefine $DOMAIN_NAME > /dev/null
2>&1
[ -f $OCF_RESKEY_config ] || cp -f $tmpf
$OCF_RESKEY_config
rm -f $tmpf
fi
fi
}
Regards,
Ulrich
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