Re: [one-users] VM cannot connect to outside (internet)
Hi Sangram, On Fri, May 9, 2014 at 9:39 PM, Sangram Rath sangram.r...@gmail.com wrote: Hi, Virtual machine gets an IP through contextualization, however virtual machine is not able to connect to internet. Also from inside the VM, I do not see any other interface apart from lo. Is this normal in contextualization? I wouldn't call it normal contextualization because the VM is missing the primary Ethernet interface, eth0. Let's try figure out why. I am able to ping the VM from same host. Host is Cent OS 6.1. Host has br0 connected to interface eth0. And virbr0. Have you defined a virtual network in OpenNebula? Does that network use br0 on virbr0? Where would you want your VMs to connect to, br0 or vribr0? If you want to isolate the VMs in a private network defined on virbr0 you have to enable IP forwarding on the host and either NAT or route the virbr0 network to the outside world. It would help in troubleshooting if you can post the output of onevnet list and onevnet show the name of your virtual network or it id. Has the template that you instantiate the VM from, a NETWORK section? Can you share the output of onetemplate show name of template or id? One more thing that can help is the output of onevm show name of VM or id. What OS are you running inside the VM? It's strange that the VM doesn't have a eth0 interface. You can also check the boot logs and search for Ethernet adapters. I also think that lspci output would help you. Where do you have the VM image from? Have you built it yourself? Maybe the udev rules are still present and the interface doesn't show up because of that. Best, Valentin ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
Re: [one-users] VM cannot connect to outside (internet)
Hi Valentin, Thanks for getting back, really appreciate. A bit of background: Had opennebula 3.8 (all working fine), performed upgrade to 4.6 and things screwed up. So ended up reinstalling (fresh install of 4.6). And we are using images from the old installation. So contextualization was working before and everything was fine. No changes done to file system inside images till now. All images are runing Ubuntu 12.04 / Ubuntu 12.10. One things to note here is that in all images, in file /etc/network/interfaces eth0 is commented. And this was working before in 3.8 (I did not setup 3.8). Right now I have manually uncommented eth0 so that interface comes up. 1 - Virtual network called public uses virbr0. A vm started with this network gets an IP (192.168.122.x), different IP in sunstone and different inside the VM (same ip range and if I uncomment eth0 manually). And I am able to ping to internet. 2 - The vms (5) should connect to internet. They will run different web servers and we have 5 static IPs. If I type a web server name from browser it should access that specific vm. Rest of the vms may or may not access internet. So I will have a private network as well. 3 - *onevnet list* ID USER GROUPNAMECLUSTER TYPE BRIDGE LEASES 0 oneadmin oneadmin net0- F br0 0 4 oneadmin oneadmin Public - R virbr02 5 oneadmin oneadmin Internet- R br0 0 6 oneadmin oneadmin Private - R br1 0 * *onevnet show 4* VIRTUAL NETWORK 4 INFORMATION ID : 4 NAME : Public USER : oneadmin GROUP : oneadmin CLUSTER: - TYPE : RANGED BRIDGE : virbr0 VLAN : No USED LEASES: 2 PERMISSIONS OWNER : um- GROUP : --- OTHER : --- VIRTUAL NETWORK TEMPLATE BRIDGE=virbr0 DESCRIPTION= DNS=8.8.8.8 GATEWAY=192.168.122.1 NETWORK_ADDRESS=192.168.122.10 NETWORK_MASK=255.255.255.0 PHYDEV= VLAN=NO VLAN_ID= RANGE IP_START : 192.168.122.1 IP_END : 192.168.122.254 LEASES ON HOLD LEASE=[ MAC=02:00:c0:a8:7a:01, IP=192.168.122.1, IP6_LINK=fe80::400:c0ff:fea8:7a01, USED=1, VID=-1 ] USED LEASES LEASE=[ MAC=02:00:c0:a8:7a:02, IP=192.168.122.2, IP6_LINK=fe80::400:c0ff:fea8:7a02, USED=1, VID=48 ] VIRTUAL MACHINES ID USER GROUPNAMESTAT UCPUUMEM HOST TIME 48 oneadmin oneadmin Sfout staging ( runn0 2G localhost0d 23h06 4 - Yes the template has a NETWORK section. 5 - *onetemplate show 5* TEMPLATE 5 INFORMATION ID : 5 NAME : Sfout staging (Ubuntu Server 11.10) USER : oneadmin GROUP : oneadmin REGISTER TIME : 05/06 13:35:47 PERMISSIONS OWNER : um- GROUP : --- OTHER : --- TEMPLATE CONTENTS CONTEXT=[ HOSTNAME=sfout.dev.redeyeelectronics.com ] CPU=4 DISK=[ IMAGE=Sfout staging image, IMAGE_UNAME=oneadmin ] GRAPHICS=[ LISTEN=0.0.0.0, TYPE=VNC ] MEMORY=2048 NIC=[ NETWORK=Public, NETWORK_UNAME=oneadmin ] 6- *onevm show * VIRTUAL MACHINE 48 INFORMATION ID : 48 NAME: Sfout staging (Ubuntu Server 11.10)-48 USER: oneadmin GROUP : oneadmin STATE : ACTIVE LCM_STATE : RUNNING RESCHED : No HOST: localhost CLUSTER ID : -1 START TIME : 05/09 05:49:06 END TIME: - DEPLOY ID : one-48 VIRTUAL MACHINE MONITORING NET_RX : 5M USED MEMORY : 2G USED CPU: 0 NET_TX : 165K PERMISSIONS OWNER : um- GROUP : --- OTHER : --- VM DISKS ID TARGET IMAGE TYPE SAVE SAVE_AS 0 hdaSfout staging image file YES - VM NICS ID NETWORK VLAN BRIDGE IP MAC 0 Public no virbr0 192.168.122.2 02:00:c0:a8:7a:02 fe80::400:c0ff:fea8:7a02 VIRTUAL MACHINE HISTORY SEQ HOSTACTION DS STARTTIME PROLOG 0 localhost none0 05/09 05:49:13 0d 23h09m 0h00m01s VIRTUAL MACHINE TEMPLATE AUTOMATIC_REQUIREMENTS=!(PUBLIC_CLOUD = YES) CONTEXT=[ DISK_ID=1, HOSTNAME=sfout.dev.redeyeelectronics.com, TARGET=hdb ] CPU=4 GRAPHICS=[ LISTEN=0.0.0.0, PORT=5948, TYPE=VNC ] MEMORY=2048 TEMPLATE_ID=5 VMID=48 7 - OS running inside VM is Ubuntu 12.04 / Ubuntu 12.10. The VM has a network interface but it is commented in /etc/network/interfaces. When I took over this setup it was like this and working. Of course in 3.8 Let me know if you need anything else. On Sat, May 10, 2014 at 1:09 PM, Valentin Bud valentin@gmail.comwrote: Hi Sangram, On Fri, May 9, 2014 at 9:39 PM, Sangram Rath
Re: [one-users] VM cannot connect to outside (internet)
Hi Sangram, On Sat, May 10, 2014 at 1:51 PM, Sangram Rath sangram.r...@gmail.comwrote: Hi Valentin, Thanks for getting back, really appreciate. A bit of background: Had opennebula 3.8 (all working fine), performed upgrade to 4.6 and things screwed up. So ended up reinstalling (fresh install of 4.6). And we are using images from the old installation. So contextualization was working before and everything was fine. No changes done to file system inside images till now. All images are runing Ubuntu 12.04 / Ubuntu 12.10. One things to note here is that in all images, in file /etc/network/interfaces eth0 is commented. And this was working before in 3.8 (I did not setup 3.8). Right now I have manually uncommented eth0 so that interface comes up. I am wondering if the vmcontext script is really activated in the VM. I think you can check that with service --status-all on Ubuntu. If I were you I would update the one-context package on all VMs to 4.6. You can follow Basic Contextualization documentation [1] for that. 1 - Virtual network called public uses virbr0. A vm started with this network gets an IP (192.168.122.x), different IP in sunstone and different inside the VM (same ip range and if I uncomment eth0 manually). And I am able to ping to internet. Another clue that contextualization is not happening and that because of more than one reason as you'll below. But it's good that your network setup is working. 2 - The vms (5) should connect to internet. They will run different web servers and we have 5 static IPs. If I type a web server name from browser it should access that specific vm. Rest of the vms may or may not access internet. So I will have a private network as well. 3 - *onevnet list* ID USER GROUPNAMECLUSTER TYPE BRIDGE LEASES 0 oneadmin oneadmin net0- F br0 0 4 oneadmin oneadmin Public - R virbr02 5 oneadmin oneadmin Internet- R br0 0 6 oneadmin oneadmin Private - R br1 0 * *onevnet show 4* VIRTUAL NETWORK 4 INFORMATION ID : 4 NAME : Public USER : oneadmin GROUP : oneadmin CLUSTER: - TYPE : RANGED BRIDGE : virbr0 VLAN : No USED LEASES: 2 PERMISSIONS OWNER : um- GROUP : --- OTHER : --- VIRTUAL NETWORK TEMPLATE BRIDGE=virbr0 DESCRIPTION= DNS=8.8.8.8 GATEWAY=192.168.122.1 NETWORK_ADDRESS=192.168.122.10 NETWORK_MASK=255.255.255.0 PHYDEV= VLAN=NO VLAN_ID= RANGE IP_START : 192.168.122.1 IP_END : 192.168.122.254 LEASES ON HOLD LEASE=[ MAC=02:00:c0:a8:7a:01, IP=192.168.122.1, IP6_LINK=fe80::400:c0ff:fea8:7a01, USED=1, VID=-1 ] USED LEASES LEASE=[ MAC=02:00:c0:a8:7a:02, IP=192.168.122.2, IP6_LINK=fe80::400:c0ff:fea8:7a02, USED=1, VID=48 ] VIRTUAL MACHINES ID USER GROUPNAMESTAT UCPUUMEM HOST TIME 48 oneadmin oneadmin Sfout staging ( runn0 2G localhost0d 23h06 4 - Yes the template has a NETWORK section. 5 - *onetemplate show 5* TEMPLATE 5 INFORMATION ID : 5 NAME : Sfout staging (Ubuntu Server 11.10) USER : oneadmin GROUP : oneadmin REGISTER TIME : 05/06 13:35:47 PERMISSIONS OWNER : um- GROUP : --- OTHER : --- TEMPLATE CONTENTS CONTEXT=[ HOSTNAME=sfout.dev.redeyeelectronics.com ] CPU=4 DISK=[ IMAGE=Sfout staging image, IMAGE_UNAME=oneadmin ] GRAPHICS=[ LISTEN=0.0.0.0, TYPE=VNC ] MEMORY=2048 NIC=[ NETWORK=Public, NETWORK_UNAME=oneadmin ] Your CONTEXT section is missing the NETWORK=YES bit to write the networking information inside the CONTEXT CD-ROM. I am almost sure that if you mount /dev/disk/by-label/CONTEXT into /mnt and read /mnt/context.sh, in the VM, you'll notice that it lacks any kind of networking information (ETH0_X variables). See Advanced Contextualization documentation [2]. Especially the Network Configuration section. 6- *onevm show * VIRTUAL MACHINE 48 INFORMATION ID : 48 NAME: Sfout staging (Ubuntu Server 11.10)-48 USER: oneadmin GROUP : oneadmin STATE : ACTIVE LCM_STATE : RUNNING RESCHED : No HOST: localhost CLUSTER ID : -1 START TIME : 05/09 05:49:06 END TIME: - DEPLOY ID : one-48 VIRTUAL MACHINE MONITORING NET_RX : 5M USED MEMORY : 2G USED CPU: 0 NET_TX : 165K PERMISSIONS OWNER : um- GROUP : --- OTHER : --- VM DISKS ID TARGET IMAGE TYPE SAVE SAVE_AS 0 hdaSfout staging image
Re: [one-users] VM cannot connect to outside (internet)
Thanks Valentin. That worked. I have another networking question though. I have 5 fixed IPs that need to go to 5 vms I have inside opennebula. I have 1 physical ethernet port and it is connected to a bridge now (br0) that has one of those fixed IPs mentioned in it. (Using Cent OS) What is the best way to have traffic route to these VMs based on IP address. On Sat, May 10, 2014 at 8:46 PM, Valentin Bud valentin@gmail.comwrote: Hi Sangram, On Sat, May 10, 2014 at 1:51 PM, Sangram Rath sangram.r...@gmail.comwrote: Hi Valentin, Thanks for getting back, really appreciate. A bit of background: Had opennebula 3.8 (all working fine), performed upgrade to 4.6 and things screwed up. So ended up reinstalling (fresh install of 4.6). And we are using images from the old installation. So contextualization was working before and everything was fine. No changes done to file system inside images till now. All images are runing Ubuntu 12.04 / Ubuntu 12.10. One things to note here is that in all images, in file /etc/network/interfaces eth0 is commented. And this was working before in 3.8 (I did not setup 3.8). Right now I have manually uncommented eth0 so that interface comes up. I am wondering if the vmcontext script is really activated in the VM. I think you can check that with service --status-all on Ubuntu. If I were you I would update the one-context package on all VMs to 4.6. You can follow Basic Contextualization documentation [1] for that. 1 - Virtual network called public uses virbr0. A vm started with this network gets an IP (192.168.122.x), different IP in sunstone and different inside the VM (same ip range and if I uncomment eth0 manually). And I am able to ping to internet. Another clue that contextualization is not happening and that because of more than one reason as you'll below. But it's good that your network setup is working. 2 - The vms (5) should connect to internet. They will run different web servers and we have 5 static IPs. If I type a web server name from browser it should access that specific vm. Rest of the vms may or may not access internet. So I will have a private network as well. 3 - *onevnet list* ID USER GROUPNAMECLUSTER TYPE BRIDGE LEASES 0 oneadmin oneadmin net0- F br0 0 4 oneadmin oneadmin Public - R virbr02 5 oneadmin oneadmin Internet- R br0 0 6 oneadmin oneadmin Private - R br1 0 * *onevnet show 4* VIRTUAL NETWORK 4 INFORMATION ID : 4 NAME : Public USER : oneadmin GROUP : oneadmin CLUSTER: - TYPE : RANGED BRIDGE : virbr0 VLAN : No USED LEASES: 2 PERMISSIONS OWNER : um- GROUP : --- OTHER : --- VIRTUAL NETWORK TEMPLATE BRIDGE=virbr0 DESCRIPTION= DNS=8.8.8.8 GATEWAY=192.168.122.1 NETWORK_ADDRESS=192.168.122.10 NETWORK_MASK=255.255.255.0 PHYDEV= VLAN=NO VLAN_ID= RANGE IP_START : 192.168.122.1 IP_END : 192.168.122.254 LEASES ON HOLD LEASE=[ MAC=02:00:c0:a8:7a:01, IP=192.168.122.1, IP6_LINK=fe80::400:c0ff:fea8:7a01, USED=1, VID=-1 ] USED LEASES LEASE=[ MAC=02:00:c0:a8:7a:02, IP=192.168.122.2, IP6_LINK=fe80::400:c0ff:fea8:7a02, USED=1, VID=48 ] VIRTUAL MACHINES ID USER GROUPNAMESTAT UCPUUMEM HOST TIME 48 oneadmin oneadmin Sfout staging ( runn0 2G localhost 0d 23h06 4 - Yes the template has a NETWORK section. 5 - *onetemplate show 5* TEMPLATE 5 INFORMATION ID : 5 NAME : Sfout staging (Ubuntu Server 11.10) USER : oneadmin GROUP : oneadmin REGISTER TIME : 05/06 13:35:47 PERMISSIONS OWNER : um- GROUP : --- OTHER : --- TEMPLATE CONTENTS CONTEXT=[ HOSTNAME=sfout.dev.redeyeelectronics.com ] CPU=4 DISK=[ IMAGE=Sfout staging image, IMAGE_UNAME=oneadmin ] GRAPHICS=[ LISTEN=0.0.0.0, TYPE=VNC ] MEMORY=2048 NIC=[ NETWORK=Public, NETWORK_UNAME=oneadmin ] Your CONTEXT section is missing the NETWORK=YES bit to write the networking information inside the CONTEXT CD-ROM. I am almost sure that if you mount /dev/disk/by-label/CONTEXT into /mnt and read /mnt/context.sh, in the VM, you'll notice that it lacks any kind of networking information (ETH0_X variables). See Advanced Contextualization documentation [2]. Especially the Network Configuration section. 6- *onevm show * VIRTUAL MACHINE 48 INFORMATION ID : 48 NAME: Sfout staging (Ubuntu Server 11.10)-48 USER: oneadmin GROUP : oneadmin STATE : ACTIVE LCM_STATE : RUNNING RESCHED : No HOST: localhost
[one-users] VM cannot connect to outside (internet)
Hi, Virtual machine gets an IP through contextualization, however virtual machine is not able to connect to internet. Also from inside the VM, I do not see any other interface apart from lo. Is this normal in contextualization? I am able to ping the VM from same host. Host is Cent OS 6.1. Host has br0 connected to interface eth0. And virbr0. -- Thanks, Sangram Rath ___ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
