[one-users] Virtual Router appliance

[Jaime Melis]

Hello Andrei,

to modify the keyboard layout, please edit /etc/rc.conf and modify the
"KEYMAP=" entry [1]. For the next update, we will upload it with the
US-en keyboard by default and the possibility to modify it with the
CONTEXT.

When the VM boots, the script located in /usr/share/opennebula/init.rb
[2] is executed. This script configures all the services.

The service that provides DHCP and DNS is dnsmasq [3], so the script
generates the configuration file for dnsmasq: /etc/dnsmasq.conf and it
also configures /etc/resolv.conf.

Dnsmasq provides many options for the DHCP service, you will find in
this script that besides the mac => ip list for all the ips in the
routers private network, it also sets itself as the NTP server
(dhcp-option=42) and DNS server (dhcp-option=4). Regarding the DNS
service, since dnsmasq is providing that service, hosts that have the
router as their nameserver will be able to locate any ip in the
routers /etc/hosts file (it needs a dnsmasq restart after each
modification: /etc/rc.d/dnsmasq restart).

Enabling DHCP in the router's context:
----8<----
# mandatory fields:
TARGET   = "hdb"
PRIVNET  = "$NETWORK[TEMPLATE, NETWORK=\"private_network_name\"]",
TEMPLATE = "$TEMPLATE"

# enables DHCP
DHCP     = "YES|NO"
---->8----

If you need any further modification to the DHCP service I recommend
you modify the "configure_dnsmasq" method [4]

If you need any other specific information please let me know.

[1] https://wiki.archlinux.org/index.php/KEYMAP (/etc/rc.conf using
the legacy rc.conf format)
[2] https://gist.github.com/3737116#L443
[3] http://www.thekelleys.org.uk/dnsmasq/doc.html
[4] https://gist.github.com/3737116#L204

cheers,
Jaime

On Sat, Sep 15, 2012 at 12:48 AM, Andrei Vakhnin
<Andrey.A.Vakhnin at nasa.gov> wrote:
>
> I downloaded Virtual Router appliance from Marketplace but having hard time accessing disk image due to keymap issue (wrong keyboard characters). Do I have to set keymap=us-en in my router vm template? I am also looking for more detail documentation on how to setup DHCP and DNS. Thanks
>
> Here is my template:
> NAME   = "OpenNebula Router"
> CPU    = 1
> MEMORY = 1024
>
> FEATURES=[ ACPI=yes ]
>
> DISK = [
>         IMAGE_ID = 24,
>         driver = raw,
>         readonly = no ]
>
> NIC = [
>         network = "Small network",
>         bridge = "br2",
>         model = virtio ]
>
> GRAPHICS = [
>         type = "vnc",
>         listen = "0.0.0.0"]
>
> OS = [
>         boot = hd,
>         arch = x86_64 ]
>
> RAW=[ TYPE=kvm ]
>
>
> CONTEXT = [
> TARGET   = "hdb",
> PRIVNET  = "$NETWORK[TEMPLATE, NETWORK=\"Small Network\"]",
> TEMPLATE = "$TEMPLATE",
> DHCP     = "YES|NO",
> NTP      = "YES|NO"
>
>
>
> On Jul 17, 2012, at 2:46 AM, Jaime Melis wrote:
>
> Dear OpenNebula users,
>
> we have published a new appliance: a Virtual Router to be deployed into OpenNebula networkw in order to provide a variety of networking services:
>
> - DHCP
> - NTP
> - Router (masquerade)
> - Port forwarding
> - DNS
>
> The purpose of this appliance is to make it easier for users to deploy uncontextualized images with OpenNebula.
>
> Documentation: http://opennebula.org/documentation:rel3.6:router
> Virtual Router: https://marketplace.c12g.com/appliance/50042d5d8fb81d68af000003
>
> Enjoy!
>
> Cheers,
> Jaime
>
> --
> Jaime Melis
> Project Engineer
> OpenNebula - The Open Source Toolkit for Cloud Computing
> www.OpenNebula.org | jmelis at opennebula.org
> _______________________________________________
> Users mailing list
> Users at lists.opennebula.org
> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>
>



--
Jaime Melis
Project Engineer
OpenNebula - The Open Source Toolkit for Cloud Computing
www.OpenNebula.org | jmelis at opennebula.org