What would be the preferred way to update the configuration of one node when provisioning new nodes?
E.g. let's say there is a cluster-like environment
i am provisioning nodes, let's say these nodes need to access a memcached or MySQL Server on some other node (also managed by puppet)
now when adding a new node, how do i go about updating iptables configuration or any other initial configuration step that is needed on another node in order to enable the new node to start its job?
i am using a homegrown "provisioning" system for these tasks currently, is there a convenient way to use puppet for something like this?