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=== Description (from pull-request) ===
Is used by MAAS to identify devices inside VM.
Signed-off-by: Thomas Parrott <thomas.parr...@canonical.com>
From a0ce4973c8226cf10e3c66a844b50a50474f2d32 Mon Sep 17 00:00:00 2001
From: Thomas Parrott <thomas.parr...@canonical.com>
Date: Tue, 14 Apr 2020 11:03:02 +0100
Subject: [PATCH] lxd/instance/drivers/driver/qemu/templates: lxd_ device name
prefix cannot be changed
Is used by MAAS to identify devices inside VM.
Signed-off-by: Thomas Parrott <thomas.parr...@canonical.com>
---
lxd/instance/drivers/driver_qemu_templates.go | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/lxd/instance/drivers/driver_qemu_templates.go
b/lxd/instance/drivers/driver_qemu_templates.go
index 78529836a8..f83979a9bb 100644
--- a/lxd/instance/drivers/driver_qemu_templates.go
+++ b/lxd/instance/drivers/driver_qemu_templates.go
@@ -201,7 +201,8 @@ fsdev = "qemu_config"
mount_tag = "config"
`))
-// Devices use "lxd_" prefix indicating that this is a internally named device.
+// Devices use "lxd_" prefix indicating that this is a user named device.
+// The device name prefix must not be changed as it used by MAAS to identify
devices inside the VM.
var qemuDriveDir = template.Must(template.New("qemuDriveDir").Parse(`
# {{.devName}} drive
[fsdev "lxd_{{.devName}}"]
@@ -223,6 +224,7 @@ mount_tag = "{{.mountTag}}"
`))
// Devices use "lxd_" prefix indicating that this is a user named device.
+// The device name prefix must not be changed as it used by MAAS to identify
devices inside the VM.
var qemuDrive = template.Must(template.New("qemuDrive").Parse(`
# {{.devName}} drive
[drive "lxd_{{.devName}}"]
@@ -244,6 +246,7 @@ bootindex = "{{.bootIndex}}"
`))
// qemuDevTapCommon is common PCI device template for tap based netdevs.
+// The device name prefix must not be changed as it used by MAAS to identify
devices inside the VM.
var qemuDevTapCommon = template.Must(template.New("qemuDevTapCommon").Parse(`
{{if ne .architecture "ppc64le" -}}
[device "qemu_pcie{{.chassisIndex}}"]
@@ -268,6 +271,7 @@ bootindex = "{{.bootIndex}}"
`))
// Devices use "lxd_" prefix indicating that this is a user named device.
+// The device name prefix must not be changed as it used by MAAS to identify
devices inside the VM.
var qemuNetDevTapTun =
template.Must(qemuDevTapCommon.New("qemuNetDevTapTun").Parse(`
# Network card ("{{.devName}}" device)
[netdev "lxd_{{.devName}}"]
@@ -280,6 +284,7 @@ downscript = "no"
`))
// Devices use "lxd_" prefix indicating that this is a user named device.
+// The device name prefix must not be changed as it used by MAAS to identify
devices inside the VM.
var qemuNetdevTapFD =
template.Must(qemuDevTapCommon.New("qemuNetdevTapFD").Parse(`
# Network card ("{{.devName}}" device)
[netdev "lxd_{{.devName}}"]
@@ -290,6 +295,7 @@ fd = "{{.tapFD}}"
`))
// Devices use "lxd_" prefix indicating that this is a user named device.
+// The device name prefix must not be changed as it used by MAAS to identify
devices inside the VM.
var qemuNetdevPhysical =
template.Must(template.New("qemuNetdevPhysical").Parse(`
# Network card ("{{.devName}}" device)
[device "dev-lxd_{{.devName}}"]
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