this adds a 'kiosk' option, which enables qemus snapshot
mode, which redirects all writes to a temporary file, so
that if you stop the qemu process, the disks are in their original state
Signed-off-by: Dominik Csapak <d.csa...@proxmox.com>
---
the only possible pitfall with this mode is that the temporary writes
go on a file on (i think) /var/tmp which in our case means the
root partition could get full, but since we can already enable this
option per disk, i guess this is not an issue
PVE/QemuServer.pm | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 20d6682..28a0f19 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -532,6 +532,12 @@ EODESCR
description => "Select BIOS implementation.",
default => 'seabios',
},
+ kiosk => {
+ optional => 1,
+ type => 'boolean',
+ default => 0,
+ description => "If activated, writes to the disks of the VM will be
temporary, and will be lost when stopping the VM."
+ }
};
# what about other qemu settings ?
@@ -3401,6 +3407,10 @@ sub config_to_command {
}
}
+ if ($conf->{kiosk}) {
+ push @$cmd, '-snapshot';
+ }
+
# add custom args
if ($conf->{args}) {
my $aa = PVE::Tools::split_args($conf->{args});
--
2.11.0
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