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From: Christoph Heiss <c.heiss@proxmox.com>
To: pve-devel@lists.proxmox.com
Date: Mon, 17 Mar 2025 15:11:43 +0100
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Subject: [pve-devel] [PATCH qemu-server 06/14] api2: qemu: add module
exposing node migration capabilities
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Similar to the already existing ones for CPU and QEMU machine support.
Very simple for now, only provides one property for now:
'has-dbus-vmstate' - Whether the dbus-vmstate is available/installed
Signed-off-by: Christoph Heiss <c.heiss@proxmox.com>
---
PVE/API2/Qemu/Makefile | 2 +-
PVE/API2/Qemu/Migration.pm | 46 ++++++++++++++++++++++++++++++++++++++
2 files changed, 47 insertions(+), 1 deletion(-)
create mode 100644 PVE/API2/Qemu/Migration.pm
diff --git a/PVE/API2/Qemu/Makefile b/PVE/API2/Qemu/Makefile
index 5d4abda6..15f7217a 100644
--- a/PVE/API2/Qemu/Makefile
+++ b/PVE/API2/Qemu/Makefile
@@ -1,4 +1,4 @@
-SOURCES=Agent.pm CPU.pm Machine.pm
+SOURCES=Agent.pm CPU.pm Machine.pm Migration.pm
.PHONY: install
install:
diff --git a/PVE/API2/Qemu/Migration.pm b/PVE/API2/Qemu/Migration.pm
new file mode 100644
index 00000000..34125a15
--- /dev/null
+++ b/PVE/API2/Qemu/Migration.pm
@@ -0,0 +1,46 @@
+package PVE::API2::Qemu::Migration;
+
+use strict;
+use warnings;
+
+use JSON;
+use PVE::JSONSchema qw(get_standard_option);
+use PVE::RESTHandler;
+
+use base qw(PVE::RESTHandler);
+
+__PACKAGE__->register_method({
+ name => 'capabilities',
+ path => '',
+ method => 'GET',
+ proxyto => 'node',
+ description => 'Get migration capabilities of the node.'
+ . " Requires the 'Sys.Audit' permission on '/nodes/<node>'.",
+ permissions => {
+ check => ['perm', '/nodes/{node}', [ 'Sys.Audit' ]],
+ },
+ parameters => {
+ additionalProperties => 0,
+ properties => {
+ node => get_standard_option('pve-node'),
+ },
+ },
+ returns => {
+ type => 'object',
+ additionalProperties => 0,
+ properties => {
+ 'dbus-vmstate' => {
+ type => 'boolean',
+ description => 'Whether the host supports live-migrating additional'
+ . ' VM state via the dbus-vmstate helper.',
+ },
+ },
+ },
+ code => sub {
+ return {
+ 'has-dbus-vmstate' => -f '/usr/libexec/qemu-server/dbus-vmstate' ? JSON::true : JSON::false,
+ };
+ }
+});
+
+1;
--
2.48.1
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