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require 'puppet'
Puppet::Type.type(:vs_config).provide(:ovs) do
commands :vsctl => 'ovs-vsctl'
def self.munge_array_value(value)
"[#{value[1..-2].split(',').map(&:strip).sort.join(",")}]"
end
def self.parse_column_value(value)
value = value.chomp
if value[0] == '{'
# hash case, like {system-id=\"some-id\", name=\"some-name\"}
type = 'hash'
res = {}
value[1..-2].gsub('"','').split(', ').map(&:strip).each do |v|
k,val = v.split('=', 2)
res[k] = val
end
elsif value[0] == '['
# set case, like ['id1', 'id2', 'id3']
type = 'set'
res = munge_array_value(value)
else
# simple string
type = 'string'
res = value
end
{
:type => type,
:value => res
}
end
def self.list_config_entries
open_vs = vsctl("list", "Open_vSwitch", ".").split("\n")
configs = []
open_vs.each do |line|
key, value = line.split(' : ').map(&:strip)
if value.nil?
next
end
parsed_value = parse_column_value(value)
if parsed_value[:type] == "hash"
parsed_value[:value].each do |k, v|
configs.push({
:name => "#{key}:#{k}",
:value => v,
:ensure => :present
})
end
else
configs.push({
:name => key,
:ensure => :present,
:value => parsed_value[:value],
})
end
end
configs
end
def self.instances()
configs = list_config_entries
configs.collect do |config|
new(config)
end
end
def self.prefetch(resources)
instances.each do |prov|
if resource = resources[prov.name]
resource.provider = prov
end
end
end
def initialize(value)
super(value)
end
def exists?
# if skip_if_version matches ovs_version(), then skip the configuration by faking exists
if @resource[:skip_if_version].eql? ovs_version()
return true
elsif ensure_absent?
@property_hash[:ensure] != :present
else
@property_hash[:ensure] == :present
end
end
def destroy
if @resource[:name].include?(':')
name, key = @resource[:name].split(':')
vsctl("remove", "Open_vSwitch", ".", name, key)
else
vsctl("clear", "Open_vSwitch", ".", @resource[:name])
end
end
def _set
if @resource[:wait] == :false
vsctl("--no-wait", "set", "Open_vSwitch", ".", "#{@resource[:name]}=#{@resource[:value]}")
else
vsctl("set", "Open_vSwitch", ".", "#{@resource[:name]}=#{@resource[:value]}")
end
end
def create
if ensure_absent?
destroy
else
_set
end
end
def value
# if skip_if_version matches ovs_version(), then skip the configuration by returning the same value
if @resource[:skip_if_version].eql? ovs_version()
@resource[:value]
elsif ensure_absent?
@resource[:value]
else
@property_hash[:value]
end
end
def ovs_version
vsctl("--version")[/.*ovs-vsctl\s+\(Open\s+vSwitch\)\s+(\d+\.\d+)/][/(\d+\.\d+)/].chomp()
end
def value=(value)
if ensure_absent?
destroy
else
_set
end
end
private
def ensure_absent?
(@resource[:value].nil? or @resource[:value].empty?) and @resource[:ensure] == :present
end
end
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