Foreman » Smart Proxy

In case of ISC DHCP integration enabled:
If DHCP config file is read during proxy startup, all files referenced in dhcpd.conf using include statement are loaded for inspection.
This is leading to issues, if those are not specified with an absolute path, but just with a simple filename.

Example:
[root@foreman dns]# cat /etc/dhcp/dhcpd.conf
include "omapi.key";
(--- remaining part of file snipped ---)

It seems as if those files are searched in the root directory instead of the directory where the dhcp config file itself is located.

The following code fixed the issue for me:

  patch -p0 /usr/share/foreman-proxy/modules/dhcp_common/isc/configuration_parser.rb << '@EOF'
*** dada        2018-04-10 04:35:16.461982185 +0200
--- configuration_parser.rb     2018-04-10 04:30:57.872176905 +0200
***************
*** 382,392 ****
--- 382,394 ----
          end

          def parse_file(a_path)
+           a_path = @@config_path + '/' + a_path if File.dirname(a_path) == '.'
            File.open(a_path, 'r') {|f| conf.parse!(f.read, a_path)}
          end

          # returns all_subnets, all_hosts, root_group
          def subnets_hosts_and_leases(conf_as_string, filename)
+           @@config_path = File.dirname(filename)
            parsed = conf.parse!(conf_as_string, filename)
            start_visiting_parse_tree_nodes(parsed)
          end
@EOF