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Remove the idea of template_options, now you specify the param directly

in the create command.
Unit and Size are now calculated
This commit is contained in:
Patrick Debois 2011-08-09 09:11:15 -06:00
parent 24569955cb
commit ffa8dbf55c
2 changed files with 63 additions and 70 deletions

View file

@ -1,9 +1,9 @@
<volume>
<name><%= "#{name}" %></name>
<allocation unit="<%= allocate_unit %>"><%= allocate %></allocation>
<capacity unit="<%= size_unit %>"><%= size %></capacity>
<name><%= name %></name>
<allocation unit="<%= allocation_unit %>"><%= allocation_size %>"></allocation>
<capacity unit="<%= capacity_unit %>"><%= capacity_size %>"></capacity>
<target>
<format type="<%= vol_type %>"/>
<format type="<%= format_type %>"/>
<permissions>
<owner>0</owner>
<group>0</group>
@ -11,4 +11,4 @@
<label>virt_image_t</label>
</permissions>
</target>
</volume>
</volume>

View file

@ -14,104 +14,94 @@ module Fog
identity :key
attribute :poolname
attribute :pool_name
attribute :xml
attribute :template_options
# attribute :key
attribute :key
attribute :path
attribute :name
attribute :capacity
attribute :allocation
attribute :type
attribute :format_type
# Can be created by passing in :xml => "<xml to create volume>"
# A volume always belongs to a pool, :poolname => "<name of pool>"
# A volume always belongs to a pool, :pool_name => "<name of pool>"
#
# @returns volume created
def initialize(attributes={} )
self.xml ||= nil unless attributes[:xml]
self.key = nil
self.format_type ||= "raw" unless attributes[:format_type]
extension = self.format_type=="raw" ? "img" : self.format_type
self.name ||= "fog-#{SecureRandom.random_number*10E14.to_i.round}.{extension}" unless attributes[:name]
self.capacity ||= "10G" unless attributes[:capacity]
self.allocation ||= "1G" unless attributes[:allocation]
super
# Try to guess the default/first pool of no poolname was specificed
default_pool_name="default"
default_pool=connection.pools.all(:name => "default")
#We need a connection to calculate the poolname
#This is why we do this after super
self.pool_name ||= default_pool_name unless attributes[:pool_name]
end
# Try to guess the default/first pool of no pool_name was specificed
def default_pool_name
default_name="default"
default_pool=@connection.pools.all(:name => default_name)
if default_pool.nil?
first_pool=connection.pools.first
first_pool=@connection.pools.first
if first_pool.nil?
raise Fog::Errors::Error.new('We could not find a pool called "default" and there was no other pool defined')
else
default_pool_name=first_pool.name
default_name=first_pool.name
end
end
self.poolname ||= default_pool_name unless attributes[:poolname]
return default_name
end
# Takes a pool and either uses :xml or :template_options->xml to create the volume
# Takes a pool and either :xml or other settings
def save
# requires :xml
# requires :poolname
requires :pool_name
if poolname
# :disk_type => "raw",
# :disk_extension => "img",
# :disk_size => "10000",
# We have a template, let's generate some xml for it
if !template_options.nil?
xml=xml_from_template if xml.nil?
template_defaults={
:type => "raw",
:extension => "img",
:size => 10,
:allocate_unit => "G",
:size_unit => "G",
:allocate => 1,
}
template_options2=template_defaults.merge(template_options)
template_options={ :name => "fog-#{SecureRandom.random_number*10E14.to_i.round}.#{template_options2[:extension]}"}.merge(template_options2)
validate_template_options(template_options)
xml=xml_from_template(template_options)
end
unless xml.nil?
volume=nil
unless poolname.nil?
pool=connection.lookup_storage_pool_by_name(poolname)
volume=pool.create_volume_xml(xml)
self.raw=volume
true
else
raise Fog::Errors::Error.new('Creating a new volume requires a pool name or uuid')
false
end
else
raise Fog::Errors::Error.new('Creating a new volume requires non empty xml')
false
end
begin
volume=nil
pool=connection.lookup_storage_pool_by_name(pool_name)
volume=pool.create_volume_xml(xml)
self.raw=volume
true
rescue
raise Fog::Errors::Error.new("Error creating volume: #{$!}")
false
end
end
def validate_template_options(template_options)
# Here we can validate the template_options
def split_size_unit(text)
matcher=text.match(/(\d+)(.+)/)
size=matcher[1]
unit=matcher[2]
return size , unit
end
def xml_from_template(template_options)
# Create a valid xml for the volume based on the template
def xml_from_template
allocation_size,allocation_unit=split_size_unit(self.allocation)
capacity_size,capacity_unit=split_size_unit(self.capacity)
template_options={
:name => self.name,
:format_type => self.format_type,
:allocation_size => allocation_size,
:allocation_unit => allocation_unit,
:capacity_size => capacity_size,
:capacity_unit => capacity_unit
}
# We only want specific variables for ERB
# we can't use an option of name type
# This clashes with ruby 1.8 Erb.type which is equivalent of .class
new_template_options={:vol_type => template_options[:type]}.merge(template_options)
vars = ErbBinding.new(template_options)
template_path=File.join(File.dirname(__FILE__),"templates","volume.xml.erb")
template=File.open(template_path).readlines.join
@ -159,13 +149,16 @@ module Fog
def raw=(new_raw)
@raw = new_raw
xml = REXML::Document.new(new_raw.xml_desc)
format_type=xml.root.elements['/volume/target/format'].attributes['type']
raw_attributes = {
:key => new_raw.key,
:path => new_raw.path,
:name => new_raw.name,
:format_type => format_type,
:allocation => new_raw.info.allocation,
:capacity => new_raw.info.capacity,
:type => new_raw.info.type
}
merge_attributes(raw_attributes)