[Puppet Users] Using facts that don't exist yet...

Hello,

I run puppet with foreman, and want to do the following:


- Initalize a network interface
- Start a service, bound to that interface.


eg:

#Start an interface for vlan 301 on interface em1
network::if::dynamic { 'em1.301':
ensure => up,
}

#Start an openstack L2 agent

class { 'neutron::agents::ovs':
local_ip => $::ipaddress_em1_301,
enable_tunneling => true,
after => Network::If::Dynamic['em1.301']
}



My problem is that the ::ipaddress_em1_301 fact doesn't exist yet the
moment the catalog gets retreived. So it throws an error. Is there a way
around this?

Krist



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On Friday, 31 January 2014 09:57:02 UTC+1, Krist van Besien wrote:


Hello,

I run puppet with foreman, and want to do the following:


- Initalize a network interface
- Start a service, bound to that interface.


eg:

#Start an interface for vlan 301 on interface em1
network::if::dynamic { 'em1.301':
ensure => up,
}

#Start an openstack L2 agent

class { 'neutron::agents::ovs':
local_ip => $::ipaddress_em1_301,
enable_tunneling => true,
after => Network::If::Dynamic['em1.301']
}



My problem is that the ::ipaddress_em1_301 fact doesn't exist yet the
moment the catalog gets retreived. So it throws an error. Is there a way
around this?

Krist

On Friday, January 31, 2014 11:27:49 AM UTC+1, Daniele Sluijters wrote:
Facts get sent at the start to the Puppet master so bringing an interface
online during a Puppet run won't make it available as a Fact during that
run, only on the next run as then the Facts are collected again. Your best
bet is to make it conditional, check for the existence of the Fact and only
if it is set do something.