TUTORIAL: Libvirt Host Fedora22
#Fedora 22 Libvirt Host
Guide to building OpenStack ready images using a Fedora 22 libvirt host in an OpenStack environment.
##Prerequisites
##Fedora 22 Libvirt Host - OpenStack Compute Instance
###Creating a Fedora 22 OpenStack Compute Instance To begin creating the Fedora 22 OpenStack compute instance to build OpenStack ready images, log in to the preferred method of creating OpenStack instances (Horizon GUI or CLI).
####
Creating via Horizon
To begin creating a libvirt build host, navigate to the Compute -> Instances tab within Horizon, then click the Launch Instance button.
Several options are available, we have included our recommended settings for creating a Fedora 22 libvirt host:
| Option | Recommended Setting |
|---|---|
Details -> Availability Zone |
regionOne |
Details -> Instance Name |
User preference - sets hostname of instance |
Details -> Flavor |
m1.medium |
Details -> Instance Count |
1 |
Details -> Instance Boot Source |
Boot from image -> Fedora22 |
Access & Security -> Key Pair |
Select Nova keypair to insert to instance |
Access & Security -> Security Groups |
Select Neutron Security Groups to use, to access via SSH ensure a security group with incoming port 22 (SSH) enabled |
Networking -> Selected Networks |
Select which networks to use |
Post-Creation -> Customization Script Source |
Blank, or provide cloud-init for automated setup |
Advanced Options -> Disk Partition |
Automatic |
Once the instance has started booting, assign a Floating IP address
####
Creating via CLI
SSH to the login node of the OpenStack environment using the provided credentials, and source the appropriate OpenStack RC file to begin using OpenStack services (e.g. . OpenStackRC.sh.
If no RC file is available, please contact your system administrator for assistance with obtaining the appropraite OpenStack RC file.
Once appropriate OpenStack networking features have been set up, we can create our Fedora 22 build instance with the following:
nova boot VM-NAME \
--flavor 3 \
--image Fedora22 \
--key-name KeystoneKeyPair appropriate keypair previously created \
--nic net-id=NETWORKID # use the unique network ID through neutron net-list\
--security-groups SECGROUP1,SECGROUP2 # security groups required
###Fedora 22 Libvirt Host Preperation
#### Preparing via command-line
The following packages are required to begin building the OpenStack image:
$ sudo dnf update -y
$ sudo dnf groupinstall -y 'virtualization'
$ sudo dnf install -y libguestfs libguestfs-tools virt-manager libvirt
$ systemctl restart libvirtd