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require 'veewee/provider/core/provider'
module Veewee
module Provider
module Kvm
class Provider < Veewee::Provider::Core::Provider
def check_requirements
require 'fog'
env.logger.info "Falling back to qemu:///system for libvirt URI if no value is specified in the .fog config file"
Fog.credentials[:libvirt_uri] ||= "qemu:///system"
env.logger.info "Setting libvirt IP Command if not already defined in .fog config file"
Fog.credentials[:libvirt_ip_command] ||= "arp -an |grep $mac|cut -d '(' -f 2 | cut -d ')' -f 1"
env.logger.info "Opening a libvirt connection using fog.io"
begin
unless gems_available?(["ruby-libvirt"])
raise Veewee::Error, "Please install ruby-libvirt gem first"
end
end
begin
env.logger.info "Opening a libvirt connection using fog.io"
conn = Fog::Compute[:libvirt]
rescue Exception => ex
raise Veewee::Error, "There was a problem opening a connection to libvirt: #{ex}"
end
env.logger.info "Libvirt connection established"
env.logger.debug "Found capabilities:"
env.logger.debug "#{conn.client.capabilities}"
env.logger.info "Checking libvirt version"
# http://www.libvirt.org/html/libvirt-libvirt.html#virGetVersion
# format major * 1,000,000 + minor * 1,000 + release
conn.client.libversion > 8003 or raise Veewee::Error, "You need at least libvirt version 0.8.3 or higher "
env.logger.info "Checking available networks"
conn.networks.any? or raise Veewee::Error, "You need at least one (active) network defined in #{Fog.credentials[:libvirt_uri]}."
env.logger.info "Checking available storagepools"
conn.pools.any? or raise Veewee::Error, "You need at least one (active) storage pool defined in #{Fog.credentials[:libvirt_uri]}."
env.logger.info "Checking availability of the arp utility"
shell_exec("arp").status.zero? or raise Veewee::Error, "Could not execute the arp command. This is required to find the IP address of the VM"
end
def build(definition_name, box_name, options)
super(definition_name, box_name, options)
end
end #End Class
end # End Module
end # End Module
end # End Module
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