[one-users] Help needed in understand virtual bridges
Hello, this could very likely be my last question regarding opennebula, because if I get this to work, my opennebula should finally start running. The question I have is - how do I really set up this virtual network? I have a front-end PC, and two clusters (with IP-addresses: 192.168.0.1 , and .2, .3 respectively) and now everything is set. Even the command "onehost list" shows me the clusters as being discovered and connected. Currently I have only two interfaces in my front-end, eth0 (connecting the PCs over a local network) and the lo-interface. Can you now please tell me how I can create this virtual bridge, needed for our virtual machines? And is this the bridge that needs to be mentioned in the network-template file? Thank you! Best regards, Adnan ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] Help needed in understand virtual bridges
Here is the problem I'm having, and as can be seen obviously the virtual bridge is creating this error, so please tell me what to do? Do I need to create a virtual bridge on my front-end? And how can I do this? Tue May 24 11:46:31 2011 [DiM][D]: Deploying VM 7 Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: nebula1:/srv/cloud/one/one-templates/ttylinux.img 192.168.0.2:/srv/cloud/one/var//7/images/disk.0 Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: DST: /srv/cloud/one/var//7/images/disk.0 Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: Creating directory /srv/cloud/one/var//7/images Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: Executed "mkdir -p /srv/cloud/one/var//7/images". Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: Executed "chmod a+w /srv/cloud/one/var//7/images". Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: Cloning /srv/cloud/one/one-templates/ttylinux.img Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: Executed "cp -r /srv/cloud/one/one-templates/ttylinux.img /srv/cloud/one/var//7/images/disk.0". Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: Executed "chmod a+rw /srv/cloud/one/var//7/images/disk.0". Tue May 24 11:46:31 2011 [TM][D]: Message received: TRANSFER SUCCESS 7 - Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 Command execution fail: 'if [ -x "/var/tmp/one/vmm/kvm/deploy" ]; then /var/tmp/one/vmm/kvm/deploy /srv/cloud/one/var//7/images/deployment.0; else exit 42; fi' Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 STDERR follows. Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 error: Failed to create domain from /srv/cloud/one/var//7/images/deployment.0 Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 error: Failed to add tap interface to bridge 'br0': No such device Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 ExitCode: 255 Tue May 24 11:46:31 2011 [VMM][D]: Message received: DEPLOY FAILURE 7 error: Failed to create domain from /srv/cloud/one/var//7/images/deployment.0 Tue May 24 11:46:31 2011 [VMM][D]: Message received: error: Failed to add tap interface to bridge 'br0': No such device Tue May 24 11:46:31 2011 [VMM][D]: Message received: ExitCode: 255 Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_delete.sh: Deleting /srv/cloud/one/var//7/images Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_delete.sh: Executed "rm -rf /srv/cloud/one/var//7/images". Tue May 24 11:46:31 2011 [TM][D]: Message received: TRANSFER SUCCESS 7 - Von: Adnan Pasic An: "users@lists.opennebula.org" Gesendet: 16:38 Montag, 23.Mai 2011 Betreff: [one-users] Help needed in understand virtual bridges Hello, this could very likely be my last question regarding opennebula, because if I get this to work, my opennebula should finally start running. The question I have is - how do I really set up this virtual network? I have a front-end PC, and two clusters (with IP-addresses: 192.168.0.1 , and .2, .3 respectively) and now everything is set. Even the command "onehost list" shows me the clusters as being discovered and connected. Currently I have only two interfaces in my front-end, eth0 (connecting the PCs over a local network) and the lo-interface. Can you now please tell me how I can create this virtual bridge, needed for our virtual machines? And is this the bridge that needs to be mentioned in the network-template file? Thank you! Best regards, Adnan ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] Help needed in understand virtual bridges
Hi Adnan, The required bridge setup is actually quite straight-forward. I'll assume you want to connect your VMs to the same network your eth0 is connected to. The following commands should be executed on the worker nodes. brctl addbr br0 ifconfig eth0 0.0.0.0 up brctl addif br0 eth0 ifconfig br0 Don't do this over an ssh connection since you will get disconnected. That's quick recipe to make it work, but you should read documents on bridging, especially to make the persistent, each distro has its own mechanism: http://wiki.debian.org/BridgeNetworkConnections http://www.linuxfoundation.org/collaborate/workgroups/networking/bridge (extensive) regards, Jaime On Tue, May 24, 2011 at 11:54 AM, Adnan Pasic wrote: > Here is the problem I'm having, and as can be seen obviously the virtual > bridge is creating this error, so please tell me what to do? Do I need to > create a virtual bridge on my front-end? And how can I do this? > Tue May 24 11:46:31 2011 [DiM][D]: Deploying VM 7 > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > nebula1:/srv/cloud/one/one-templates/ttylinux.img > 192.168.0.2:/srv/cloud/one/var//7/images/disk.0 > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > DST: /srv/cloud/one/var//7/images/disk.0 > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > Creating directory /srv/cloud/one/var//7/images > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > Executed "mkdir -p /srv/cloud/one/var//7/images". > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > Executed "chmod a+w /srv/cloud/one/var//7/images". > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > Cloning /srv/cloud/one/one-templates/ttylinux.img > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > Executed "cp -r /srv/cloud/one/one-templates/ttylinux.img > /srv/cloud/one/var//7/images/disk.0". > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > Executed "chmod a+rw /srv/cloud/one/var//7/images/disk.0". > > Tue May 24 11:46:31 2011 [TM][D]: Message received: TRANSFER SUCCESS 7 - > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 Command > execution fail: 'if [ -x "/var/tmp/one/vmm/kvm/deploy" ]; then > /var/tmp/one/vmm/kvm/deploy /srv/cloud/one/var//7/images/deployment.0; > else exit 42; fi' > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 STDERR follows. > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 error: Failed > to create domain from /srv/cloud/one/var//7/images/deployment.0 > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 error: Failed > to add tap interface to bridge 'br0': No such device > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 ExitCode: 255 > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: DEPLOY FAILURE 7 error: > Failed to create domain from /srv/cloud/one/var//7/images/deployment.0 > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: error: Failed to add > tap interface to bridge 'br0': No such device > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: ExitCode: 255 > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_delete.sh: > Deleting /srv/cloud/one/var//7/images > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_delete.sh: > Executed "rm -rf /srv/cloud/one/var//7/images". > > Tue May 24 11:46:31 2011 [TM][D]: Message received: TRANSFER SUCCESS 7 - > > > > > Von: Adnan Pasic > An: "users@lists.opennebula.org" > Gesendet: 16:38 Montag, 23.Mai 2011 > Betreff: [one-users] Help needed in understand virtual bridges > > Hello, > this could very likely be my last question regarding opennebula, because if > I get this to work, my opennebula should finally start running. The question > I have is - how do I really set up this virtual network? > I have a front-end PC, and two clusters (with IP-addresses: 192.168.0.1 , > and .2, .3 respectively) and now everything is set. Even the command > "onehost list" shows me the clusters as being discovered and connected. > Currently I have only two interfaces in my front-end, eth0 (connecting the > PCs over a local network) and the lo-interface. > Can you now please tell me how I can create this virtual bridge, needed for > our virtual machines? And is this the bridge that needs to be mentioned in > the network-template file? > Thank you! > Best regards, > Adnan > ___
Re: [one-users] Help needed in understand virtual bridges
Hello together, thanks for your help. Unfortunately, I made a rookie mistake - I didn't understand that in the virtual-network template I need to set the bridge that was created on the CLUSTER-NODES!!! All I had to do now is find out the correct name of the libvirt-created bridge (virbr0) and now the VM's are finally running :) Thanks a bunch for your help! Von: Jaime Melis An: Adnan Pasic Cc: "users@lists.opennebula.org" Gesendet: 12:51 Dienstag, 24.Mai 2011 Betreff: Re: [one-users] Help needed in understand virtual bridges Hi Adnan, The required bridge setup is actually quite straight-forward. I'll assume you want to connect your VMs to the same network your eth0 is connected to. The following commands should be executed on the worker nodes. brctl addbr br0 ifconfig eth0 0.0.0.0 up brctl addif br0 eth0 ifconfig br0 Don't do this over an ssh connection since you will get disconnected. That's quick recipe to make it work, but you should read documents on bridging, especially to make the persistent, each distro has its own mechanism: http://wiki.debian.org/BridgeNetworkConnections http://www.linuxfoundation.org/collaborate/workgroups/networking/bridge (extensive) regards, Jaime On Tue, May 24, 2011 at 11:54 AM, Adnan Pasic wrote: > Here is the problem I'm having, and as can be seen obviously the virtual > bridge is creating this error, so please tell me what to do? Do I need to > create a virtual bridge on my front-end? And how can I do this? > Tue May 24 11:46:31 2011 [DiM][D]: Deploying VM 7 > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > nebula1:/srv/cloud/one/one-templates/ttylinux.img > 192.168.0.2:/srv/cloud/one/var//7/images/disk.0 > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > DST: /srv/cloud/one/var//7/images/disk.0 > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > Creating directory /srv/cloud/one/var//7/images > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > Executed "mkdir -p /srv/cloud/one/var//7/images". > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > Executed "chmod a+w /srv/cloud/one/var//7/images". > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > Cloning /srv/cloud/one/one-templates/ttylinux.img > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > Executed "cp -r /srv/cloud/one/one-templates/ttylinux.img > /srv/cloud/one/var//7/images/disk.0". > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_clone.sh: > Executed "chmod a+rw /srv/cloud/one/var//7/images/disk.0". > > Tue May 24 11:46:31 2011 [TM][D]: Message received: TRANSFER SUCCESS 7 - > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 Command > execution fail: 'if [ -x "/var/tmp/one/vmm/kvm/deploy" ]; then > /var/tmp/one/vmm/kvm/deploy /srv/cloud/one/var//7/images/deployment.0; > else exit 42; fi' > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 STDERR follows. > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 error: Failed > to create domain from /srv/cloud/one/var//7/images/deployment.0 > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 error: Failed > to add tap interface to bridge 'br0': No such device > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: LOG - 7 ExitCode: 255 > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: DEPLOY FAILURE 7 error: > Failed to create domain from /srv/cloud/one/var//7/images/deployment.0 > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: error: Failed to add > tap interface to bridge 'br0': No such device > > Tue May 24 11:46:31 2011 [VMM][D]: Message received: ExitCode: 255 > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_delete.sh: > Deleting /srv/cloud/one/var//7/images > > Tue May 24 11:46:31 2011 [TM][D]: Message received: LOG - 7 tm_delete.sh: > Executed "rm -rf /srv/cloud/one/var//7/images". > > Tue May 24 11:46:31 2011 [TM][D]: Message received: TRANSFER SUCCESS 7 - > > > > > Von: Adnan Pasic > An: "users@lists.opennebula.org" > Gesendet: 16:38 Montag, 23.Mai 2011 > Betreff: [one-users] Help needed in understand virtual bridges > > Hello, > this could very likely be my last question regarding opennebula, because if > I get this to work, my opennebula should finally start running. The question > I have is - how do I really set up this virtual network? > I have a front-end PC, and two clusters (with IP-ad
