Re: [Users] test day: using VM has host for vdsm

On 01/18/2012 11:13 PM, Ryan Harper wrote: >* Itamar Heim<iheim(a)redhat.com> [2012-01-18 13:46]: >>On 01/18/2012 07:26 PM, Ryan Harper wrote: >>>* Ryan Harper<ryanh(a)us.ibm.com> [2012-01-18 06:59]: >>>>I've created some f16 VMs that contain both ovirt-engine and a few >>>>to run vdsm as nodes. When I add in the VM host into the engine and it >>>>attempts to install vdsm (even though I've already installed vdsm) the >>>>install fails because the vdsm install script is checking to see if the >>>>host has virt capabilities; since I'm not running nested KVM, this >>>>fails. Is there a way to work around this can enable a VM to be a host >>>>in oVirt? I had heard in the past there was a way to create fake VMs >>>>when attempting to do ovirt-engine stress testing, wondering if that >>>>might be of help here. >>>Now that I have one VM as a host in the UP state in ovirt-engine, let me >>>capture what I needed to get that to work: >>> >>> >>>On my F16-node, since I was following the test day instructions which >>>asked to install vdsm/vdsm-cli and this is already done by ovirt-engine >>>bootstrap. >>> >>>1) uninstall vdsm and vdsm-cli >>> - ovirt-engine will push down a vdsm package during the bootstrap >>> process >>> >>>2) disable selinux >>> - edit /etc/sysconfig/selinux and set SELINUX=disabled >>> - reboot >>> >>>3) ensure ssl=false and fake_kvm_support=true in /etc/vdsm/vdsm.conf >>> >>>4) restart vdsmd >>> >>> >>>On the ovirt-engine instanes >>> >>># we have a gateway in the way so we're using ssh tunneling to access >>># the ovirt-engine VM instance >>> >>>1) re-install ovirt-engine and don't use localhost as the hostname since >>>this value is passed to the host you install vdsm on and it will fail to >>>push the bootstrap script down. This means that after you setup your >>>tunnel, to get to the admin interface, you need to manually enter: >>> >>> http://localhost:8080/webadmin >>> >>>2) edit >>>/usr/share/ovirt-engine/engine.ear/components.war/vds/vds_bootstrap.py >>>and comment out lines 836->839, like this. >>> >>># if not oDeploy.virtExplorer(random_num): >>># logging.error('virtExplorer test failed') >>># return False >>> >>>3) some misc stuff (not sure if it is needed, but looks harmless enough) >>> >>> mkdir /var/lock/ovirt-engine/ >>> chown jboss-as:jboss-as -R /var/lock/ovirt-engine >>> restorecon -Fvv /var/lock/ovirt-engine >>> >>>4) update jboss configuration to not use ssl >>> >>>psql -U postgres engine -c "update vdc_options set option_value='false' >>>where >>>+option_name='UseSecureConnectionWithServers' and version='general';" >>> >>>5) restart jboss >>> >>>service restart jboss-as >>> >>>>Also, are their vdsm rpms built for RHEL6.x available? >>you can set InstallVds to false in engine config, which will only add >what does this command look like? I plan to update the installing vdsm >wiki page. Itamar, i think this value is missing on engine-config - will look into it tomorrow: engine-config -l | grep -i install oVirtISOsRepositoryPath: "The RHEV-H installation files path" (Value Type: String) VdcBootStrapUrl: "Host Installation Bootstrap Script URL" (Value Type: String) Ryan, you can change it on DB: UPDATE vdc_options SET option_value = false where option_name = 'InstallVds';

Moran. >>the host without doing any communication to it. >>together with disabling ssl/secure connections should be easy enough to >>use. >>you would need to install vdsm manually and configure the ovirtmgmt >>bridge. >That sounds good; it'd probably be good to mention that on the >installing VDSM page which walks folks through installing vdsm. > > >