Network Install (Recommended)
Follow this steps to to install a Xen Cloud Node (hypervisor host) ready to be used by Abiquo Server. Use this installation method if you have internet access in your cloud nodes.
Perform a CentOS/RHEL 5 x86_64 Core Install
Minimal install. No graphical environment needed.
Refer to the official RedHat/CentOS documentation if you need assistance with the installation process:
http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/Installation_Guide-en-US/index.html
 | IMPORTANT!!!
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Add the Abiquo yum repository config
Install the Abiquo YUM repository package:
rpm -Uvh http://packages.abiquolabs.com/abiquo-repo-0.1-2.x86_64.rpm
You can also get the sample repo config file from http://packages.abiquolabs.com/abiquo.repo and add it to /etc/yum.repos.d directory
Install the abiquo-xen package
yum install abiquo-xen --nogpgcheck
Configure and mount the NFS repository
Add the following line to /etc/fstab to have the NFS client mount the FS after rebooting the server:
your-nfs-server-ip:/opt/vm_repository /opt/vm_repository nfs defaults 0 0
'your-nfs-server-ip' should be the IP address of your NFS server.
Configure Openwsman
/etc/openwsman/openwsman.conf
In particular, make sure you have the right libvirt_uri (comment out other libvirt_uri settings):
libvirt_uri = xen+unix:///
And change the NFS repository IP address:
remoteRepository = nfs-server:/opt/vm_repository
remoteRepository = your-nfs-server:/opt/vm_repository
There are sample config files in /usr/share/doc/abiquo-xen
Configure xend
Edit /etc/xen/xend-config.sxp and make sure the network-script and xend-unix-server settings are configured like this:
(xend-unix-server yes)
(network-script 'network-bridge netdev=eth0 bridge=br0')
instead of
(xend-unix-server no)
(network-script network-bridge)
(xend-unix-server yes) (network-script 'network-bridge netdev=eth0 bridge=br0')
netdev value should be the name of the interface connected to the service network, where the DHCP server is located.
bridge name MUST be br0.
Make sure the Xen Kernel is the default kernel when booting
Check /boot/grub/menu.lst Grub config file. The default parameter should point to the right kernel section. i.e.
default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.18-164.15.1.el5xen) root (hd0,0) kernel /xen.gz-3.4.2 module /vmlinuz-2.6.18-164.15.1.el5xen ro root=/dev/systemvg/rootlv rhgb quiet module /initrd-2.6.18-164.15.1.el5xen.img title CentOS (2.6.18-164.el5) root (hd0,0) kernel /vmlinuz-2.6.18-164.el5 ro root=/dev/systemvg/rootlv rhgb quiet initrd /initrd-2.6.18-164.el5.img
Now you are ready to restart the system.
Check
To check that the all services are 'ok' to use the node in Abiquo, follow the next steps:
cd /usr/local/bin/ wget http://download.abiquo.com/support/scripts/abiquoNodeCheckState.sh chmod +x abiquoNodeCheckState.sh
And run the script:
# /usr/local/bin/abiquoNodeCheckState.sh xen Checking openwsmand... OK (pid 19657, listening at 8889) Checking libvirtd... OK (pid 18640, listening at 16509) Checking bridge... OK (br0 attached to peth0) Checking firewall... Firewall status: DISABLED, active rules found! Runlevel config: current = 3, default = 3 Firewall activation: 0:off 1:off 2:off 3:off 4:off 5:off SELinux status: DISABLED Checking AIM... Remote repository... OK (at nfs-server:/opt/vm_repository) Destination repository... OK (at /var/lib/virt) Checking XEN configuration... Checking vagent... OK (libvirt_uri = xen+unix:///) Checking emulator... OK (/usr/lib64/xen/bin/qemu-dm) Checking loader... OK (/usr/lib/xen/boot/hvmloader)
