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

[Ryan Harper]

* Moran Goldboim <mgoldboi at redhat.com> [2012-01-18 15:37]:
> On 01/18/2012 11:13 PM, Ryan Harper wrote:
> >* Itamar Heim<iheim at redhat.com>  [2012-01-18 13:46]:
> >>On 01/18/2012 07:26 PM, Ryan Harper wrote:
> >>>* Ryan Harper<ryanh at 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';

Thanks!  I'll give that  try and see if I can pre-install vdsm instead.

> 
> 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.
> >
> >
> >

-- 
Ryan Harper
Software Engineer; Linux Technology Center
IBM Corp., Austin, Tx
ryanh at us.ibm.com