Puppet Network Module

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Introduction

This module manages Red Hat/Fedora traditional network configuration.

It allows for static, dhcp, and bootp configuration of normal and bonded interfaces as well as bridges and VLANs. There is support for aliases on interfaces as well as alias ranges. It can configure static routes. It can configure MTU, DHCP_HOSTNAME, ETHTOOL_OPTS, and BONDING_OPTS on a per-interface basis.

It can configure the following files:

• /etc/sysconfig/network
• /etc/sysconfig/networking-scripts/route-*
• /etc/sysconfig/networking-scripts/ifcfg-*

Class and Define documentation is available via puppetdoc.

Examples

Please note that the following examples do not depict all of the parameters supported by each class or define.

Global network settings:

class { 'network::global':
  gateway => '1.2.3.1',
}

Global network setting (IPv6 enabled):

class { 'network::global':
  ipv6gateway    => '123:4567:89ab:cdef:123:4567:89ab:1',
  ipv6networking => true,
}

Global network setting with IPv6 enabled with optional default device for IPv6 traffic:

class { 'network::global':
  ipv6gateway    => '123:4567:89ab:cdef:123:4567:89ab:1',
  ipv6networking => true,
  ipv6defaultdev => 'eth1',
}

Normal interface - no IP:

network::if { 'eth0':
  ensure => 'up',
}

Normal interface - static IPv4 (minimal):

network::if::static { 'eth0':
  ensure    => 'up',
  ipaddress => '1.2.3.248',
  netmask   => '255.255.255.128',
}

Normal interface - static IPv4 (minimal without HWADDR in ifcfg-file):

network::if::static { 'eth0':
  ensure        => 'up',
  ipaddress     => '1.2.3.248',
  netmask       => '255.255.255.128',
  manage_hwaddr => false,
}

Normal interface - static IPv4:

network::if::static { 'eth1':
  ensure       => 'up',
  ipaddress    => '1.2.3.4',
  netmask      => '255.255.255.0',
  gateway      => '1.2.3.1',
  macaddress   => 'fe:fe:fe:aa:aa:aa',
  ipv6init     => true,
  ipv6address  => '123:4567:89ab:cdef:123:4567:89ab:cdef/64',
  ipv6gateway  => '123:4567:89ab:cdef:123:4567:89ab:1',
  mtu          => '9000',
  ethtool_opts => 'autoneg off speed 1000 duplex full',
}

Normal interface - dhcp (minimal):

network::if::dynamic { 'eth2':
  ensure => 'up',
}

Normal interface - dhcp (minimal without HWADDR in ifcfg-file):

network::if::dynamic { 'eth2':
  ensure        => 'up',
  manage_hwaddr => false,
}

Normal interface - dhcp:

network::if::dynamic { 'eth3':
  ensure        => 'up',
  macaddress    => 'fe:fe:fe:ae:ae:ae',
  mtu           => '1500',
  dhcp_hostname => $::hostname,
  ethtool_opts  => 'autoneg off speed 100 duplex full',
}

Normal interface - bootp (minimal):

network::if::dynamic { 'eth2':
  ensure     => 'up',
  macaddress => 'fe:fe:fe:fe:fe:fe',
  bootproto  => 'bootp',
}

Normal interface - bridged (the corresponding network::bridge::* may also have to be defined):

network::if::bridge { 'eth0':
  ensure => 'up',
  bridge => 'br0'
}

Normal interface - promiscuous:

network::if::promisc { 'eth1':
  ensure => 'up',
}

Aliased interface IPv4:

network::alias { 'eth0:1':
  ensure    => 'up',
  ipaddress => '1.2.3.5',
  netmask   => '255.255.255.0',
}

Aliased interface IPv4 (allow non-root user to manage):

network::alias { 'em2:1':
  ensure    => 'up',
  ipaddress => '10.22.33.45',
  netmask   => '255.255.254.0',
  userctl   => true,
}

Aliased interface IPv4 (range):

network::alias::range { 'eth1':
  ensure          => 'up',
  ipaddress_start => '1.2.3.5',
  ipaddress_end   => '1.2.3.20',
  clonenum_start  => '0',
  noaliasrouting  => true,
}

Bonded master interface - no IP:

network::bond { 'bond0':
  ensure       => 'up',
  bonding_opts => 'mode=802.3ad lacp_rate=fast miimon=100',
}

Bonded master interface - static:

network::bond::static { 'bond0':
  ensure       => 'up',
  ipaddress    => '1.2.3.5',
  netmask      => '255.255.255.0',
  gateway      => '1.2.3.1',
  ipv6init     => true,
  ipv6address  => '123:4567:89ab:cdef:123:4567:89ab:cdef',
  ipv6gateway  => '123:4567:89ab:cdef:123:4567:89ab:1',
  mtu          => '9000',
  bonding_opts => 'mode=active-backup miimon=100',
}

Bonded master interface - dhcp:

network::bond::dynamic { 'bond2':
  ensure       => 'up',
  mtu          => '8000',
  bonding_opts => 'mode=active-backup arp_interval=60 arp_ip_target=192.168.1.254',
}

Bonded master interface - bridged (the corresponding network::bridge::* may also have to be defined):

network::bond::bridge { 'bond2':
  ensure       => 'up',
  bridge       => 'br3',
  bonding_opts => 'mode=802.3ad lacp_rate=fast miimon=100',
}

Bonded slave interface:

network::bond::slave { 'eth1':
  macaddress   => $macaddress_eth1,
  ethtool_opts => 'autoneg off speed 1000 duplex full',
  master       => 'bond0',
}

Bridge interface - no IP:

network::bridge { 'br0':
  ensure        => 'up',
  stp           => true,
  delay         => '0',
  bridging_opts => 'priority=65535',
}

Bridge interface - static:

network::bridge::static { 'br2':
  ensure        => 'up',
  ipaddress     => '1.2.3.8',
  netmask       => '255.255.0.0',
  stp           => true,
  delay         => '0',
  ipv6init      => true,
  ipv6address   => '123:4567:89ab:cdef:123:4567:89ab:cdef',
  ipv6gateway   => '123:4567:89ab:cdef:123:4567:89ab:1',
  bridging_opts => 'priority=65535',
}

Bridge interface - dhcp (minimal):

network::bridge::dynamic { 'br3':
  ensure => 'up',
}

Static interface routes:

network::route { 'eth0':
  ipaddress => [ '192.168.2.0', '10.0.0.0', ],
  netmask   => [ '255.255.255.0', '255.0.0.0', ],
  gateway   => [ '192.168.1.1', '10.0.0.1', ],
}

Static interface routes (host route):

network::route { 'eno2':
  ipaddress => [ '192.168.45.32', ],
  netmask   => [ '255.255.255.255', ], # this is the important part
  gateway   => [ '192.168.100.1', ],
}

Normal interface - VLAN - no IP:

class { 'network::global':
  vlan => 'yes',
}

network::if { 'eth0.330':
  ensure => 'up',
}

Normal interface - VLAN - static IPv4:

class { 'network::global':
  vlan => 'yes',
}

network::if::static { 'eth0.330':
  ensure    => 'up',
  ipaddress => '10.2.3.248',
  netmask   => '255.255.255.0',
}

Promiscuous interface: To set a static or dynamic interface to promiscuous mode (RedHat only), add: promisc => true

Flush IP addresses:

Network scripts on RHEL7 do not flush IP addresses, so you eventually end up with multiple of them, passing flush => true will run ip addr flush on given interface before notifying the network service.

network::if::static { 'eth0':
  ensure    => 'up',
  ipaddress => '1.2.3.4',
  netmask   => '255.255.255.0',
  flush     => true,
}

Restart network:

By default, all changes notify the network service, thus triggering a restart of the whole networking configuration. This might be not desired in some setups and can be disabled by passing the restart parameter as false:

network::if::static { 'eth0':
  ensure    => 'up',
  ipaddress => '1.2.3.4',
  netmask   => '255.255.255.0',
  restart   => false,
}

Hiera

Hiera can be enabled for all defines by including the hiera class in code:

include network::hiera

With this include enabled, configuration both in Hiera and in code will be applied.

For example, to configure network::alias via Hiera:

network::alias:
  'eth0:1':
    ensure: up
    ipaddress: 1.2.3.4
    netmask: 255.255.255.0

The Hiera naming substitutes underscore for any secondary double colons, i.e. specify network::bond::static as network::bond_static in hiera:

network::bond_static:
  bond0:
    ensure: up
    ipaddress: 1.2.3.4
    netmask: 255.255.255.0
    bonding_opts: 'mode=1 miimon=1000'

Notes

• Runs under Puppet 2.7 and later.
• Only works with RedHat-ish systems.
• Read /usr/share/doc/initscripts-*/sysconfig.txt for underlying details.
• Read /usr/share/doc/kernel-doc-*/Documentation/networking/bonding.txt for underlying details.
• Read /etc/sysconfig/network-scripts/ifup-aliases for underlying details.
• Only tested on CentOS 5.5 and CentOS 6.3.
• There is an assumption that an aliased interface will never use DHCP.
• bootp support is unknown for bonded interfaces. Thus no bootp bond support in this module.
• It is assumed that if you create a bond that you also create the slave interface(s).
• It is assumed that if you create an alias that you also create the parent interface.
• network::route requires the referenced device to also be defined via network::if or network::bond.
• For VLANs to work, Class['network::global'] must have parameter vlan set to yes.
• To enable IPv6 you have to set both ipv6networking in Class['network::global'] to true and ipv6init in network::if::static to true.

Issues

• Setting ETHTOOL_OPTS, MTU, or BONDING_OPTS and then unsetting will not revert the running config to defaults.
• Changes to any configuration will by default result in "service network restart". This could cause network inaccessability for the host if the network configuration is incorrect. See the examples how to disable this behaviour.
• Modifying or creating a slave interface after the master has been created will not change the running config.
• There is presently no support for removing an interface.

TODO

• Support /etc/sysconfig/network-scripts/rule-<interface-name>
• Expand support for IPv6.
• Support for more than Ethernet links.
• Testing of VLAN support (it should Just Work(TM)).

See TODO.md for more items.

Deprecation Warning

The define network::global will be replaced by a paramterized class in version 3.0.0 of this module. Please be aware that your manifests may need to change to account for the new syntax.

This:

network::global { 'default':
  # blah
}

would become this:

class { 'network::global':
  # blah
}

The define network::if::alias and network::bond::alias will be merged into network::alias in version 3.0.0 of this module. Please be aware that your manifests may need to change to account for the new syntax.

This:

network::if::alias { 'eth0:1':
  # blah
}

would become this:

network::alias { 'eth0:1':
  # blah
}

The define network::route will have parameter address renamed to ipaddress in version 3.0.0 of this module. This is for the purpose of consistency with all the other defines in the network class. Please be aware that your manifests may need to change to account for the new syntax.

This:

network::route { 'eth0':
  address => '192.168.17.0',
  # blah
}

would become this:

network::route { 'eth0':
  ipaddress => '192.168.17.0',
  # blah
}

Contributing

Please see CONTRIBUTING.md for contribution information.

License

Please see LICENSE file.

Copyright

Copyright (C) 2011 Mike Arnold mike@razorsedge.org

razorsedge/puppet-network on GitHub

razorsedge/network on Puppet Forge