route

Use the route resource to manage the system routing table in a Linux environment.

Syntax

A route resource block manages the system routing table in a Linux environment:

route '10.0.1.10/32' do
  gateway '10.0.0.20'
  device 'eth1'
end

The full syntax for all of the properties that are available to the route resource is:

route 'name' do
  device                     String
  gateway                    String
  netmask                    String
  notifies                   # see description
  provider                   Chef::Provider::Route
  subscribes                 # see description
  target                     String # defaults to 'name' if not specified
  action                     Symbol # defaults to :add if not specified
end

where

• route is the resource
• name is the name of the resource block
• :action identifies the steps the chef-client will take to bring the node into the desired state
• device, gateway, netmask, provider and target are properties of this resource, with the Ruby type shown. See “Properties” section below for more information about all of the properties that may be used with this resource.

Actions

This resource has the following actions:

:add

Default. Add a route.

:delete

Delete a route.

:nothing

Define this resource block to do nothing until notified by another resource to take action. When this resource is notified, this resource block is either run immediately or it is queued up to be run at the end of the chef-client run.

Properties

This resource has the following properties:

device

Ruby Type: String

The network interface to which the route applies.

gateway

Ruby Type: String

The gateway for the route.

ignore_failure

Ruby Types: TrueClass, FalseClass

Continue running a recipe if a resource fails for any reason. Default value: false.

netmask

Ruby Type: String

The decimal representation of the network mask. For example: 255.255.255.0.

notifies

Ruby Type: Symbol, ‘Chef::Resource[String]’

A resource may notify another resource to take action when its state changes. Specify a 'resource[name]', the :action that resource should take, and then the :timer for that action. A resource may notifiy more than one resource; use a notifies statement for each resource to be notified.

A timer specifies the point during the chef-client run at which a notification is run. The following timers are available:

:delayed

Default. Specifies that a notification should be queued up, and then executed at the very end of the chef-client run.

:immediate, :immediately

Specifies that a notification should be run immediately, per resource notified.

The syntax for notifies is:

notifies :action, 'resource[name]', :timer

provider

Ruby Type: Chef Class

Optional. Explicitly specifies a provider.

retries

Ruby Type: Integer

The number of times to catch exceptions and retry the resource. Default value: 0.

retry_delay

Ruby Type: Integer

The retry delay (in seconds). Default value: 2.

subscribes

Ruby Type: Symbol, ‘Chef::Resource[String]’

A resource may listen to another resource, and then take action if the state of the resource being listened to changes. Specify a 'resource[name]', the :action to be taken, and then the :timer for that action.

A timer specifies the point during the chef-client run at which a notification is run. The following timers are available:

:delayed

Default. Specifies that a notification should be queued up, and then executed at the very end of the chef-client run.

:immediate, :immediately

Specifies that a notification should be run immediately, per resource notified.

The syntax for subscribes is:

subscribes :action, 'resource[name]', :timer

target

Ruby Type: String

The IP address of the target route. Default value: the name of the resource block See “Syntax” section above for more information.

Examples

The following examples demonstrate various approaches for using resources in recipes. If you want to see examples of how Chef uses resources in recipes, take a closer look at the cookbooks that Chef authors and maintains: https://github.com/chef-cookbooks.

Add a host route

route '10.0.1.10/32' do
  gateway '10.0.0.20'
  device 'eth1'
end

Delete a network route

route '10.1.1.0/24' do
  gateway '10.0.0.20'
  action :delete
end