How to change the server's IP where VNC connects?

svega · September 14, 2015, 11:08pm

Hello! We are trying to implement VNC support on LXCoNe (VM and IM drivers for LXC). Our problem is that, in Sunstone, when you hit the VNC button, it tries to connect always to the node’s IP, looking for the VNC server. How can we change this? How can we change the IP address where VNC tries to connect? The idea is to connect it directly to a VNC server installed in a container, and not in the node.
Thanks

dmolina · September 15, 2015, 1:31pm

Hi Sergio,

You can modify that in the following file. As you can see in the line 206 there is a condition for vcenter hosts where you have to use the ESX_HOST ip instead of the vcenter IP.

github.com

OpenNebula/one/blob/master/src/sunstone/OpenNebulaVNC.rb#L206


def proxy(vm_resource)
    # Check configurations and VM attributes
    if !is_running?
        return error(400, "VNC Proxy is not running")
    end


    if !VNC_STATES.include?(vm_resource['LCM_STATE'])
        return error(400,"Wrong state (#{vm_resource['LCM_STATE']}) to open a VNC session")
    end


    if vm_resource['TEMPLATE/GRAPHICS/TYPE'].nil? ||
       !(["vnc", "spice"].include?(vm_resource['TEMPLATE/GRAPHICS/TYPE'].downcase))
        return error(400,"VM has no VNC configured")
    end


    # Proxy data
    host       = vm_resource['/VM/HISTORY_RECORDS/HISTORY[last()]/HOSTNAME']
    vnc_port   = vm_resource['TEMPLATE/GRAPHICS/PORT']
    vnc_pw     = vm_resource['TEMPLATE/GRAPHICS/PASSWD']


    # If it is a vCenter VM

Hope this helps

svega · September 15, 2015, 6:15pm

Thanks, it worked. We modified the file, but we changed the line that says:
"host = vm_resource[’/VM/HISTORY_RECORDS/HISTORY[last()]/HOSTNAME’] "
for "host = vm_resource[’/VM/TEMPLATE/NIC/IP’]"
That changed the ip address where the vnc tries to connect
Best

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How to change the server's IP where VNC connects?

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