openstack team mailing list archive

[Nachi Ueno <ueno.nachi@xxxxxxxxxxxxxxxxxxxx>]

Thanks! Yong!

2012/4/12 Yong Sheng Gong <gongysh@xxxxxxxxxx>

> Hi, please see if following text can help.
>
> To enable vnc console access VMs started by OpenStack, we need many
> components to collaborate.
>
>    - Components on control node
>       - nova-api, which is API server of OpenStack
>       - nova-consoleauth, which is used to authorize vnc client
>       - noVNC, which is a VNC proxy for browser. An alternative proxy is
>       nova-xvpvncproxy, which can accessed by a Java client at
>       https://github.com/cloudbuilders/nova-xvpvncviewer.
>    - Components on compute node
>       - nova-compute, which is nova binary to instantiate VMs
>       - libvirt driver, which is used by nova-compute to interact with
>       libvirt server
>       - VNC server, which is part of hypervisor?
>
>  Steps for user to access VNC console
>
>
> 1. user gets the vnc console by command：
>   [root@robinlinux utils]# nova  get-vnc-console myserver20 novnc
>
>
> nova-api accepts this request, and then sends out "get_vnc_console"
> message to VM's related compute host
>
> 2. nova-compute, running on that compute host accepts that message,
> generate a token and call libvirt driver's get_vnc_console methods.
>
> 3. Libvirt driver will connect with libvirt server to get VM's vnc port,
> and look up the vnc host from FLAGS.vncserver_proxyclient_address.
>
> 4. nova-api will send out "authorize_console" message to nova-consoleauth,
> which then caches the connection information returned by compute-node with
> token as key
>
> 5. user browsers the URL returned the previous command, like below:
>   [root@robinlinux utils]# nova  get-vnc-console myserver20 novnc
>
> +-------+----------------------------------------------------------------------------------+
> |  Type |
> Url                                        |
>
> +-------+----------------------------------------------------------------------------------+
> | novnc |
> http://controlnode:6080/vnc_auto.html?token=34ce7a44-6186-43d8-be14-2ea9e028b8fa|
>
> +-------+----------------------------------------------------------------------------------+
>
>
> 6. noVNC, which is listening on 6080 HTTP port, accepts the URL request,
> sends out "check_token" message to nova-consoleauth
>
> 7. nova-consoleauth checks the cached connections and returns one
> according to the requested token key
>
> 8. noVNC begins the proxy work, connecting the VNC server
>  About configuration items in nova.conf   #read by nova-compute to
> compose vnc-console URL
> # for novnc
> novncproxy_base_url=http://controlnode:6080/vnc_auto.html
> # for xvpvnc
> xvpvncproxy_base_url=http://controlnode:6081/console
> #read by nova-compute to instantiate VMs
> vncserver_listen=controlnode
>
> #read by libvirt driver to compute vnc-console URL
> vncserver_proxyclient_address=controlnode
>
>
>
> -----openstack-bounces+gongysh=cn.ibm.com@xxxxxxxxxxxxxxxxxxx wrote: -----
>
> To: openstack@xxxxxxxxxxxxxxxxxxx
> From: Nachi Ueno <ueno.nachi@xxxxxxxxxxxxxxxxxxxx><ueno.nachi@xxxxxxxxxxxxxxxxxxxx>
> Sent by: openstack-bounces+gongysh=cn.ibm.com@xxxxxxxxxxxxxxxxxxx
> Date: 04/13/2012 08:33AM
> Subject: [Openstack] How to setup vncproxy with ubuntu precise package?
>
> Hi folks
>
> I'm trying to setup vncproxy with ubuntu package on precise.
> But I could'nt find document how to setup them.
> If you there are information, could you share me?
>
> Thank you in advance
> Nachi
>
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