netif_find.cf

# Find all network interfaces that match a certain IP address.
# Time-stamp: <[netif_find.cf] modified by Diego Zamboni on Tuesday, 2010.08.24 at 01:53:03>

body common control
{
  bundlesequence => { "test" };
}

bundle agent test
{
vars:
  "nics" slist => getindices("sys.ipv4");
  # Regex we want to match on the IP address
  "ipregex" string => "192\.168\..*";

# This is heavily based on cfengine3 list expansion. The expression is
# evaluated for every value of ${nics}, and if there are any matches,
# the corresponding class is defined, which then triggers the printing
# of the "Matched NIC" message (of course, in a real example, the class
# could be used to trigger some other action).
classes:
  "ismatch_${nics}" expression => regcmp("${ipregex}", "${sys.ipv4[${nics}]}");

reports:
  linux|windows::
    "NICs found: ${nics}";

    "Matched NIC: ${nics} (${sys.ipv4[${nics}]})"
      ifvarclass => "ismatch_${nics}";
}