create module l23network for config L2 and L3 network
This commit is contained in:
Sergey Vasilenko
Gerrit Code Review
parent
3d509efbab
commit
751efeb6fe
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Puppet module for configuring L2 and L3 networks.
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Based on open vSwitch and iproute2.
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L2 network configuation
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-----------------------
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Current layout is:
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bridges - A "Bridge" is basically the thing you plug ports / interfaces into.
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ports - A Port is a interface you plug into the bridge (switch).
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USAGE:
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Place this directory at:
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<your module directory of choice>/l23network
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Then in your manifest you can either use the things as parameterized classes:
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class {"l23network": }
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l23network::l2::bridge{"br-mgmt": }
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l23network::l2::port{"eth0": bridge => "br-mgmt"}
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l23network::l2::port{"mmm0": bridge => "br-mgmt"}
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l23network::l2::port{"mmm1": bridge => "br-mgmt"}
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l23network::l2::bridge{"br-ex": }
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l23network::l2::port{"eth0": bridge => "br-ex"}
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l23network::l2::port{"eth1": bridge => "br-ex", ifname_order_prefix='ovs'}
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l23network::l2::port{"eee0": bridge => "br-ex", skip_existing => true}
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l23network::l2::port{"eee1": bridge => "br-ex", type=>'internal'}
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You can define type for the port. Port type can be
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'system', 'internal', 'tap', 'gre', 'ipsec_gre', 'capwap', 'patch', 'null'.
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If you not define type for port (or define '') -- ovs-vsctl will have default behavior
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(see http://openvswitch.org/cgi-bin/ovsman.cgi?page=utilities%2Fovs-vsctl.8).
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You can use skip_existing option if you not want interrupt configuration during adding existing port or bridge.
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L3 network configuation
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-----------------------
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l23network::l3::ifconfig {"some_name0": interface=>'eth0', ipaddr=>'192.168.0.1', netmask=>'255.255.255.0'}
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l23network::l3::ifconfig {"some_name1": interface=>'br-ex', ipaddr=>'192.168.10.1', netmask=>'255.255.255.0', ifname_order_prefix='ovs'}
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l23network::l3::ifconfig {"some_name2": interface=>'aaa0', ipaddr=>'192.168.10.1', netmask=>'255.255.255.0', ifname_order_prefix='zzz'}
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Option 'ipaddr' can contains IP address, 'dhcp', or 'none' for up empty unaddressed interface.
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Centos and Ubuntu at startup started and configure network interfaces in alphabetical order interface configuration file names. In example above we change configuration process order by ifname_order_prefix keyword. We will have this order:
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ifcfg-eth0
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ifcfg-ovs-br-ex
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ifcfg-zzz-aaa0
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And OS will configure interfaces br-ex and aaa0 after eth0
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---
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this module based on https://github.com/ekarlso/puppet-vswitch
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def check_kern_module(mod)
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mods = File.readlines("/proc/modules")
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if mods.select {|x| x =~ mod}.length > 0
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return true
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else
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return false
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end
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end
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Facter.add('kern_module_ovs_loaded') do
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case Facter.value('osfamily')
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when /(?i)(debian)/
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mod = /^openvswitch_mod\s+/
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when /(?i)(redhat)/
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mod = /^openvswitch\s+/
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end
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setcode do
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check_kern_module(mod)
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end
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end
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Facter.add('kern_module_bridge_loaded') do
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setcode do
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check_kern_module(/^bridge\s+/)
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end
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end
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def get_def_route
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addr = nil
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File.open("/proc/net/route", "r") do |rff|
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while (line = rff.gets)
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rgx = line.match('^\s*(\S+)\s+00000000\s+([\dABCDEF]{8})\s+')
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if rgx
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vals = rgx.to_a[2]
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addr = []
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0.step(6, 2) do |i|
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addr << vals.slice(i,2).hex
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end
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addr = addr.reverse.join('.')
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break
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end
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end
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end
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return addr
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end
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Facter.add('default_route') do
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setcode do
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get_def_route()
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end
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end
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# Fact: openvswitch ports
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#
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# Purpose: On any OS - return info about ovs ports for all bridges
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#
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# Resolution:
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#
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# Caveats:
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require "facter"
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require "set"
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def vsctl_cmd
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"/usr/bin/ovs-vsctl"
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end
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def ofctl_cmd
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"/usr/bin/ovs-ofctl"
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end
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module OpenVSwitch
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def self.exec(bin, cmd)
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result = Facter::Util::Resolution.exec(bin + " " + cmd)
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if result
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result = result.split("\n")
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end
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return result
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end
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# vSwitch
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def self.vsctl(cmd)
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return exec(vsctl_cmd, cmd)
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end
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def self.list_br
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return vsctl("list-br")
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end
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def self.list_ports(bridge)
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return vsctl("list-ports " + bridge)
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end
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# OpenFlow
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def self.ofctl(cmd)
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return exec(ofctl_cmd, cmd)
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end
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def self.of_show(bridge="")
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return ofctl("show " + bridge)
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end
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end
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#Facter.add("openvswitch_module") do
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# setcode do
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# Facter.value(:kernel_modules).split(",").include? "openvswitch_mod"
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# end
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#end
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if Facter.value(:kern_module_ovs_loaded) == true && File.exists?(vsctl_cmd)
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bridges = OpenVSwitch.list_br || []
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Facter.add("openvswitch_bridges") do
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setcode do
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bridges.join(",")
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end
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end
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bridges.each do |bridge|
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ports = OpenVSwitch.list_ports(bridge)
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if ports
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Facter.add("openvswitch_ports_#{bridge}") do
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setcode do
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ports.join(",")
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end
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end
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end
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end
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end
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Puppet::Type.type(:l2_ovs_bridge).provide(:ovs) do
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optional_commands :vsctl => "/usr/bin/ovs-vsctl"
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def exists?
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vsctl("br-exists", @resource[:bridge])
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rescue Puppet::ExecutionFailure
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return false
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end
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def create
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begin
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vsctl('br-exists', @resource[:bridge])
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if @resource[:skip_existing]
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notice("Bridge '#{@resource[:bridge]}' already exists, skip creating.")
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#external_ids = @resource[:external_ids] if @resource[:external_ids]
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return true
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else
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raise ExecutionFailure, "Bridge '#{@resource[:bridge]}' already exists."
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end
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rescue Puppet::ExecutionFailure
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# pass
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notice("Bridge '#{@resource[:bridge]}' not exists, creating...")
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end
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vsctl('add-br', @resource[:bridge])
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notice("bridge '#{@resource[:bridge]}' created.")
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external_ids = @resource[:external_ids] if @resource[:external_ids]
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end
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def destroy
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vsctl("del-br", @resource[:bridge])
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end
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def _split(string, splitter=",")
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return Hash[string.split(splitter).map{|i| i.split("=")}]
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end
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def external_ids
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result = vsctl("br-get-external-id", @resource[:bridge])
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return result.split("\n").join(",")
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end
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def external_ids=(value)
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old_ids = _split(external_ids)
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new_ids = _split(value)
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new_ids.each_pair do |k,v|
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unless old_ids.has_key?(k)
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vsctl("br-set-external-id", @resource[:bridge], k, v)
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end
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end
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end
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end
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Puppet::Type.type(:l2_ovs_port).provide(:ovs) do
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optional_commands :vsctl => "/usr/bin/ovs-vsctl"
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def exists?
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vsctl("list-ports", @resource[:bridge]).include? @resource[:interface]
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end
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def create
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begin
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vsctl('port-to-br', @resource[:interface])
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if @resource[:skip_existing]
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return true
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else
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raise ExecutionFailure, "Port '#{@resource[:interface]}' already exists."
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end
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rescue Puppet::ExecutionFailure
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# pass
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end
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cmd = [@resource[:bridge], @resource[:interface]]
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if @resource[:type] and @resource[:type].to_s != ''
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tt = "type=" + @resource[:type].to_s
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cmd += ['--', "set", "Interface", @resource[:interface], tt]
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end
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cmd = ["add-port"] + cmd
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vsctl(cmd)
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end
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def destroy
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vsctl("del-port", @resource[:bridge], @resource[:interface])
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end
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end
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Puppet::Type.newtype(:l2_ovs_bridge) do
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@doc = "Manage a Open vSwitch bridge (virtual switch)"
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desc @doc
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ensurable
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newparam(:bridge) do
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isnamevar
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desc "The bridge to configure"
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#
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validate do |val|
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if not val =~ /^[0-9A-Za-z\.\-\_]+$/
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fail("Invalid bridge name: '#{val}'")
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end
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end
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end
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newparam(:skip_existing) do
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defaultto(false)
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desc "Allow skip existing bridge"
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end
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newproperty(:external_ids) do
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desc "External IDs for the bridge"
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end
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end
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Puppet::Type.newtype(:l2_ovs_port) do
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@doc = "Manage a Open vSwitch port"
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desc @doc
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ensurable
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newparam(:interface) do
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isnamevar
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desc "The interface to attach to the bridge"
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#
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validate do |val|
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if not val =~ /^[0-9A-Za-z\.\-\_]+$/
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fail("Invalid interface name: '#{val}'")
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end
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end
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end
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newparam(:type) do
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newvalues('', :system, :internal, :tap, :gre, :ipsec_gre, :capwap, :patch, :null)
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defaultto('')
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desc "Ovs port type"
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end
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newparam(:skip_existing) do
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defaultto(false)
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desc "Allow skip existing port"
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end
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newparam(:bridge) do
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desc "What bridge to use"
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#
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validate do |val|
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if not val =~ /^[0-9A-Za-z\.\-\_]+$/
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fail("Invalid bridge name: '#{val}'")
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end
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end
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end
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autorequire(:l2_ovs_bridge) do
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[self[:bridge]]
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end
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end
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# == Class: l23network
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#
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# Module for configuring network. Contains L2 and L3 modules.
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# Requirements, packages and services.
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#
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class l23network {
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class {'l23network::l2': }
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}
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# == Class: l23network::l2
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#
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# Module for configuring L2 network.
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# Requirements, packages and services.
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#
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class l23network::l2 {
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case $::osfamily {
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/(?i)(debian)/: {
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$service_name = 'openvswitch-switch'
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$status_cmd = '/etc/init.d/openvswitch-switch status'
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$ovs_packages = ['openvswitch-datapath-dkms', 'openvswitch-switch']
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}
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/(?i)(redhat)/: {
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$service_name = 'openvswitch' #'ovs-vswitchd'
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$status_cmd = '/etc/init.d/openvswitch status'
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$ovs_packages = ['kmod-openvswitch', 'openvswitch']
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}
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/(?i)linux/: {
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case $::operatingsystem {
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/(?i)archlinux/: {
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$service_name = 'openvswitch.service'
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$status_cmd = 'systemctl status openvswitch'
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$ovs_packages = ['aur/openvswitch']
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}
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default: {
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fail("Unsupported OS: ${::osfamily}/${::operatingsystem}")
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}
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}
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}
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default: {
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fail("Unsupported OS: ${::osfamily}/${::operatingsystem}")
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}
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}
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package {$ovs_packages:
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ensure => present,
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before => Service['openvswitch-service'],
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}
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service {'openvswitch-service':
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ensure => running,
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name => $service_name,
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enable => true,
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hasstatus => true,
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status => $status_cmd,
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}
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}
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# == Define: l23network::l2::bridge
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#
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# Create open vSwitch brigde.
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#
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# === Parameters
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#
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# [*name*]
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# Bridge name.
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#
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# [*skip_existing*]
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# If brigde with this name already exists -- we ignore this fact and
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# don't create bridge without generate error.
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# Must be true or false.
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#
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# [*external_ids*]
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# See open vSwitch documentation.
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# http://openvswitch.org/cgi-bin/ovsman.cgi?page=utilities%2Fovs-vsctl.8
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#
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define l23network::l2::bridge (
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$external_ids = '',
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$ensure = present,
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$skip_existing = false,
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) {
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if ! defined (L2_ovs_bridge[$name]) {
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l2_ovs_bridge {$name:
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ensure => $ensure,
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external_ids => $external_ids,
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skip_existing=> $skip_existing,
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require => Service['openvswitch-service']
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}
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}
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}
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# == Define: l23network::l2::port
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#
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# Create open vSwitch port and add to the OVS bridge.
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#
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# === Parameters
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#
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# [*name*]
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# Port name.
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#
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# [*bridge*]
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# Bridge, that will contain this port.
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#
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# [*type*]
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# Port type. Port type can be
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# 'system', 'internal', 'tap', 'gre', 'ipsec_gre', 'capwap', 'patch', 'null'.
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# If you not define type for port (or define '') -- ovs-vsctl will have
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# default behavior while creating port.
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# (see http://openvswitch.org/cgi-bin/ovsman.cgi?page=utilities%2Fovs-vsctl.8)
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#
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# [*skip_existing*]
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# If this port already exists -- we ignore this fact and
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# don't create it without generate error.
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# Must be true or false.
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#
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define l23network::l2::port (
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$bridge,
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$type = '',
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$ensure = present,
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$skip_existing = false,
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) {
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if ! defined (L2_ovs_port[$name]) {
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l2_ovs_port { $name :
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ensure => $ensure,
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bridge => $bridge,
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type => $type,
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skip_existing => $skip_existing,
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require => Service['openvswitch-service']
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}
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}
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}
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# == Define: l23network::l3::clear_ip_from_interface
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#
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# Flush any IP addresses from interface
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#
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# === Parameters
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#
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# [*name*]
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# Specify interface.
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#
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define l23network::l3::clear_ip_from_interface {
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exec { "ip addr flush ${name}":
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path => '/usr/bin:/usr/sbin:/bin:/sbin',
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}
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}
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# == Define: l23network::l3::create_br_iface
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#
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# Creating L2 ovs bridge, cleaning IPs from interface and add IP address to this
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# bridge
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#
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# === Parameters
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#
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# [*bridge*]
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# Bridge name
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#
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# [*interface*]
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# Interface, that will be added to the bridge.
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#
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# [*ipaddr*]
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# IP address for port in bridge.
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#
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# [*netmask*]
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# Network mask.
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#
|
||||
define l23network::l3::create_br_iface (
|
||||
$interface,
|
||||
$bridge,
|
||||
$ipaddr,
|
||||
$netmask = '',
|
||||
$se = true,
|
||||
$external_ids = '',
|
||||
){
|
||||
if ! $external_ids {
|
||||
$ext_ids = "bridge-id=${bridge}"
|
||||
}
|
||||
#
|
||||
l23network::l2::bridge {$bridge:
|
||||
skip_existing => $se,
|
||||
external_ids => $ext_ids,
|
||||
}
|
||||
l23network::l2::port {$interface:
|
||||
bridge => $bridge,
|
||||
skip_existing => $se,
|
||||
require => l23network::l2::bridge[$bridge]
|
||||
}
|
||||
l23network::l3::ifconfig {$interface:
|
||||
interface => $interface,
|
||||
ipaddr => 'none',
|
||||
require => l23network::l2::port[$interface],
|
||||
}
|
||||
l23network::l3::ifconfig {$bridge:
|
||||
interface => $bridge,
|
||||
ipaddr => $ipaddr,
|
||||
netmask => $netmask,
|
||||
ifname_order_prefix => 'ovs',
|
||||
require => l23network::l3::ifconfig[$interface],
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,116 @@
|
|||
# == Define: l23network::l3::ifconfig
|
||||
#
|
||||
# Specify IP address for network interface and put interface to the UP state.
|
||||
#
|
||||
# === Parameters
|
||||
#
|
||||
# [*interface*]
|
||||
# Specify interface.
|
||||
#
|
||||
# [*ipaddr*]
|
||||
# IP address for interface. Can contains IP address, 'dhcp', or 'none'
|
||||
# for up empty unaddressed interface.
|
||||
#
|
||||
# [*netmask*]
|
||||
# Specify network mask.
|
||||
#
|
||||
# [*dhcp_nowait*]
|
||||
# If you put 'true' to this option dhcp agent will be started in background.
|
||||
# Puppet will not wait for obtain IP address and route.
|
||||
#
|
||||
# [*ifname_order_prefix*]
|
||||
# Centos and Ubuntu at boot time Up and configure network interfaces in
|
||||
# alphabetical order of interface configuration file names.
|
||||
# This option helps You change this order at system startup.
|
||||
#
|
||||
define l23network::l3::ifconfig (
|
||||
$interface,
|
||||
$ipaddr,
|
||||
$netmask = '255.255.255.0',
|
||||
$dhcp_nowait = false,
|
||||
$ifname_order_prefix = false
|
||||
){
|
||||
|
||||
case $ipaddr {
|
||||
'dhcp': { $method = 'dhcp' }
|
||||
'none': { $method = 'manual' }
|
||||
default: { $method = 'static' }
|
||||
}
|
||||
case $::osfamily {
|
||||
'Debian': {
|
||||
$if_files_dir = '/etc/network/interfaces.d'
|
||||
$interfaces = '/etc/network/interfaces'
|
||||
}
|
||||
'RedHat': {
|
||||
$if_files_dir = '/etc/sysconfig/network-scripts'
|
||||
$interfaces = false
|
||||
}
|
||||
default: {
|
||||
fail("Unsupported OS: ${::osfamily}/${::operatingsystem}")
|
||||
}
|
||||
}
|
||||
$cmd_ifup = 'ifup'
|
||||
$cmd_ifdn = 'ifdown'
|
||||
$cmd_flush= 'ip addr flush'
|
||||
|
||||
if $ifname_order_prefix {
|
||||
$interface_file= "${if_files_dir}/ifcfg-${ifname_order_prefix}-${interface}"
|
||||
} else {
|
||||
$interface_file= "${if_files_dir}/ifcfg-${interface}"
|
||||
}
|
||||
|
||||
if $interfaces {
|
||||
if ! defined(File[$interfaces]) {
|
||||
file {$interfaces:
|
||||
ensure => present,
|
||||
content => template('l23network/interfaces.erb'),
|
||||
}
|
||||
}
|
||||
File[$interfaces] -> File[$if_files_dir]
|
||||
}
|
||||
|
||||
if ! defined(File[$if_files_dir]) {
|
||||
file {$if_files_dir:
|
||||
ensure => directory,
|
||||
owner => 'root',
|
||||
mode => '0755',
|
||||
recurse => true,
|
||||
}
|
||||
}
|
||||
|
||||
file {$interface_file:
|
||||
ensure => present,
|
||||
owner => 'root',
|
||||
mode => '0644',
|
||||
content => template("l23network/ipconfig_${::osfamily}_${method}.erb"),
|
||||
require => File[$if_files_dir],
|
||||
}
|
||||
|
||||
# Downing interface
|
||||
exec { "ifdn_${interface}":
|
||||
command => "${cmd_ifdn} ${interface}",
|
||||
path => '/usr/bin:/usr/sbin:/bin:/sbin',
|
||||
onlyif => "ip link show ${interface}|grep ' ${interface}:'|grep -i up",
|
||||
subscribe => File[$interface_file],
|
||||
refreshonly => true,
|
||||
}
|
||||
# Cleaning interface
|
||||
exec { "flush_${interface}":
|
||||
command => "${cmd_flush} ${interface}",
|
||||
path => '/usr/bin:/usr/sbin:/bin:/sbin',
|
||||
subscribe => Exec["ifdn_${interface}"],
|
||||
refreshonly => true,
|
||||
}
|
||||
# Upping interface
|
||||
if $dhcp_nowait {
|
||||
$w = '&'
|
||||
} else {
|
||||
$w = ''
|
||||
}
|
||||
exec { "ifup_${interface}":
|
||||
command => "${cmd_ifup} ${interface} ${w}",
|
||||
path => '/usr/bin:/usr/sbin:/bin:/sbin',
|
||||
subscribe => Exec["flush_${interface}"],
|
||||
refreshonly => true,
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
# == Define: l23network::l3::set_default_route_if_none
|
||||
#
|
||||
# add default route to the routing table if it not exists.
|
||||
#
|
||||
# === Parameters
|
||||
#
|
||||
# [*route*]
|
||||
# Route that will be added. Using default_route fact if it's not specify.
|
||||
#
|
||||
# [*timeout*]
|
||||
# Timeout before checking exists or not default route in routing table.
|
||||
#
|
||||
define l23network::l3::set_default_route_if_none (
|
||||
$route = $::default_route,
|
||||
$timeout = 10,
|
||||
){
|
||||
if $route {
|
||||
exec { "ip route add default via ${route}":
|
||||
path => '/usr/bin:/usr/sbin:/bin:/sbin',
|
||||
unless => "sleep ${timeout} ; ip route list | grep default",
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1 @@
|
|||
source /etc/network/interfaces.d/*
|
||||
|
|
@ -0,0 +1,2 @@
|
|||
auto <%= interface %>
|
||||
iface <%= interface %> inet dhcp
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
auto <%= interface %>
|
||||
iface <%= interface %> inet manual
|
||||
up ip l set <%= interface %> up
|
||||
down ip l set <%= interface %> down
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
auto <%= interface %>
|
||||
iface <%= interface %> inet static
|
||||
address <%= ipaddr %>
|
||||
netmask <%= netmask %>
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
DEVICE=<%= interface %>
|
||||
BOOTPROTO=dhcp
|
||||
ONBOOT=yes
|
||||
USERCTL=no
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
DEVICE=<%= interface %>
|
||||
BOOTPROTO=none
|
||||
ONBOOT=yes
|
||||
USERCTL=no
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
DEVICE=<%= interface %>
|
||||
IPADDR=<%= ipaddr %>
|
||||
NETMASK=<%= netmask %>
|
||||
BOOTPROTO=none
|
||||
ONBOOT=yes
|
||||
USERCTL=no
|
||||
Loading…
Reference in New Issue