kvm虛擬機器vnc和spice配置
阿新 • • 發佈:2018-12-30
一、簡介
通過vnc或spice方式訪問虛擬主機上的KVM虛擬機器,可以直接通過圖形化介面virt-manager來設定,但此處通過xml配置檔案修改。
二、詳解
1、VNC方式訪問
vnc方式訪問虛擬機器不是在kvm虛擬機器安裝配置vnc伺服器,通過虛擬主機的IP地址與埠進行訪問,kvm虛擬化對vnc的支援相對來說比xen要好很多,在虛擬主機上配置VNC訪問虛擬機器,也是為了多提供一種方式訪問虛擬機器而已。(1)修改qemu.conf(也可不修改,預設是127.0.0.1)
#vi /etc/libvirt/qemu.conf
vnc_listen = "0.0.0.0"
vnclisten預設繫結127.0.0.1,在配置檔案裡指定VNC繫結0.0.0.0,就不用在安裝kvm虛擬機器時指定vnclisten引數了。當在虛擬主機上有很多個虛擬機器的時候,若指定每個虛擬機器的埠,將會很亂,所以採用0.0.0.0自動分配埠。(2)修改目標虛擬機器smb3.1
#virsh list --all
#virsh edit smb3.1
<graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'>
<listen type='address' address='0.0.0.0'/>
</graphics>
#virsh start smb3.1(3)檢視執行虛擬機器的vnc埠
檢視vnc埠#netstat -tunlp
也可以通過virsh命令動態檢視虛擬機器的xml配置檔案#virsh dumpxml smb3.1
(4)vnc登入
windows下可以通過vnc viewer 或TightVNC或RealVNC等工具登入。
linux下可以安裝tigervnc,然後通過#vncviewer 127.0.0.1:5901登入。
linux下也可以通過#virt-viewer --connect qemu:///system smb3.1訪問,非本機的linux通過#virt-viewer
qemu+ssh://[email protected]/system smb3.1訪問。
(5)vnc原始碼登入
kde桌面的原始碼包kdenetwork中可以找到krdc/vnc中關於vnc的原始碼,提取vncview.cpp、vncclientthread.cpp和remoteview.cpp即可執行vnc。
#include "widget.h"
#include "vncview.h"
Widget::Widget(QWidget *parent)
: QWidget(parent, Qt::WindowMinimizeButtonHint | Qt::WindowCloseButtonHint)
{
resize(900+20, 900+20);
VncView *vncView = new VncView(this, QUrl("vnc://:@192.168.40.125:5901"));
vncView->enableScaling(true);
vncView->scaleResize(900, 900);
vncView->show();
vncView->start();
}
Widget::~Widget()
{
}
2、SPICE方式訪問
(1)修改目標虛擬機器smb3.1的配置檔案#virsh list --all
#virsh edit smb3.0
<graphics type='spice' autoport='yes' listen='0.0.0.0'>
<listen type='address' address='0.0.0.0'/>
</graphics>
#virsh start smb3.0(2)檢視執行虛擬機器的vnc埠
#netstat -tunlp
a
或通過virsh命令動態檢視虛擬機器的xml配置檔案#virsh dumpxml smb3.0
(3)spice登入
linux下通過#virt-viewer --connect qemu:///system smb3.0登入到圖形化介面。
也可以通過命令#spicy -h 127.0.0.1 -p 5900(需安裝spice-gtk-tools軟體包)。
(4)spice原始碼登入
spice-gtk提供了完整的gtk介面。
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <gtk/gtk.h>
#include <spice-channel.h>
#include <spice-session.h>
#include <spice-widget.h>
static GtkWidget *main_window;
static SpiceSession *spice_session;
static SpiceDisplay *spice_display;
static char *host;
static char *port;
static void channel_new(SpiceSession *s, SpiceChannel *c, gpointer *data)
{
int id = 0;
g_object_get(c, "channel-id", &id, NULL);
if (SPICE_IS_MAIN_CHANNEL(c)) {
fprintf(stdout, "new main channel\n");
return;
}
if (SPICE_IS_DISPLAY_CHANNEL(c)) {
fprintf(stdout, "new display channel (#%d), creating window\n", id);
spice_display = spice_display_new(s, id);
gtk_container_add(GTK_CONTAINER(main_window), GTK_WIDGET(spice_display));
gtk_widget_show_all(main_window);
return;
}
}
static void usage()
{
fprintf(stdout, "spice-client: A spice client\n"
"Usage: spice-client [options]...\n"
" -h, --host\n"
" Set address of spice server\n"
" -p, --port\n"
" Set port of spice server\n"
" -e, --help\n"
" Print help and exit\n"
);
}
static void parse_cmd(int argc, char *argv[])
{
int c, e = 0;
if (argc == 1) {
usage();
exit(1);
}
const struct option long_options[] = {
{ "help", 0, 0, 'e' },
{ "host", 0, 0, 'h' },
{ "port", 0, 0, 'p' },
{ 0, 0, 0, 0 },
};
while ((c = getopt_long(argc, argv, "eh:p:",
long_options, NULL)) != EOF) {
switch (c) {
case 'e':
goto failed;
case 'h':
host = optarg;
break;
case 'p':
port = optarg;
break;
default:
e++;
break;
}
}
if (e || argc > optind) {
goto failed;
}
if (host == NULL || port == NULL) {
fprintf(stderr, "No host or port found\n");
goto failed;
}
return ;
failed:
usage();
exit(1);
}
int main(int argc, char *argv[])
{
parse_cmd(argc, argv);
gtk_init(&argc, &argv);
main_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
spice_session = spice_session_new();
g_object_set(spice_session, "host", host, NULL);
g_object_set(spice_session, "port", port, NULL);
g_signal_connect(spice_session, "channel-new",
G_CALLBACK(channel_new), NULL);
if (!spice_session_connect(spice_session)) {
fprintf(stderr, "spice_session_connect failed\n");
exit(1);
}
gtk_main();
return 0;
}
gcc -o spice-client client.c `pkg-config --cflags --libs spice-client-gtk-2.0`
./spice-client -h 127.0.0.1 -p 5900