Re: [Qemu-devel] Starting QEMU by PHP/Apache

[François Revol]

Hi,

> Did anybody had success to start a QEMU instance by a PHP
> script under the Apache web server ?

see
http://dev.haiku-os.org/browser/haiku/trunk/3rdparty/mmu_man/onlinedemo/haiku.php

>
> I allow the Apache user with the help of sudoers to start
> the QEMU binary as root. I've hacked the "qemu-socket.c"
> to set the access mode to allow communication for the
> monitor socket (only add "chmod(path, <needed file mode
> bits>)").

Though I never neeeded to start it as root. It's probably a bad idea
anyway.

You might also ask the Free Live OS Zoo team, though I think they use
perl:
http://www.oszoo.org/wiki/index.php/Free_Live_OS_Zoo

>
> I'm able to successfully start the QEMU instance from a
> PHP CLI script as the user under which Apache is running
> like "sudo -u <Apache user> sudo <qemu + args>". But when
> I run the same script by the web server, QEMU starts up to
> the BIOS, telling me to press F12 for a start device. The
> "info cpus" tells "CPU #0: pc=0x000f08b5 (halted)".
>
> The full command executed by PHP is:
> /usr/bin/sudo /usr/bin/qemu -L /usr/share/qemu -M isapc -m
> 16 -hda </path/and/name/to/image> -net none -serial none
> -parallel none -vnc :0,password -monitor
> unix:</path/and/name/to/socket>,server,nowait -name "QEMU
> TEST" -pidfile </path/and/name/to/pid> -chroot
> </path/to/image> -runas <service user> > /dev/null &
>
> Any idea about where to look for more information ?

You might want to use a wrapper script instead...

François.