Foreman » Smart Proxy

In the process of upgrading our foreman infrastructure to 1.13.x I ran into an issue where the smart proxy will not load a subnet if it has the "on [commit,release,expiry]" sections enabled, resulting in these error message in the smart proxy log when trying to create a host in that subnet. There are no other errors in the logs.

E, [2017-02-24T12:01:41.909161 #23812] ERROR -- : Subnet 192.168.48.0 not found
I, [2017-02-24T12:01:41.909773 #23812] INFO -- : X.X.X.X - - [24/Feb/2017:12:01:41 0800] "GET /dhcp/192.168.48.0/unused_ip?from=192.168.48.30&to=192.168.49.254 HTTP/1.1" 404 28 0.0016
E, [2017-02-24T12:03:54.996984 #23812] ERROR -- : Subnet 192.168.48.0 not found
I, [2017-02-24T12:03:54.997342 #23812] INFO -- : X.X.X.X - - [24/Feb/2017:12:03:54 0800] "GET /dhcp/192.168.48.0/unused_ip?from=192.168.48.30&to=192.168.49.254 HTTP/1.1" 404 28 0.0016

We use these for dynamic DNS updates. Commenting out the relevant sections and restarting foreman-proxy allows it to be loaded successfully.

--- dhcpd.conf snippet ---

pool {
                never-broadcast on;
                authoritative;
                range 192.168.50.0 192.168.51.240;
                next-server x.x.x.x;
                filename "pxelinux.0";
                default-lease-time 86400;  # 1 Day
                ddns-updates on;
                on commit {
                        set noname = concat("dhcp-", binary-to-ascii(10, 8, "-", leased-address));
                        set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
                        set ClientMac = binary-to-ascii(16, 8, ":", substring(hardware, 1, 6));
                        set ClientName = pick-first-value(option host-name, host-decl-name, config-option host-name, noname);
                        log(concat("Commit: IP: ", ClientIP, " Mac: ", ClientMac, " Name: ", ClientName));
                        execute("/etc/dhcp/dhcp-dyndns.sh", "add", ClientIP, ClientMac, ClientName);
                }
                on release {
                        set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
                        set ClientMac = binary-to-ascii(16, 8, ":", substring(hardware, 1, 6));
                        log(concat("Release: IP: ", ClientIP, " Mac: ", ClientMac));
                        execute("/etc/dhcp/dhcp-dyndns.sh", "delete", ClientIP, "", ClientMac);
                }
                on expiry {
                        set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
                        log(concat("Expired: IP: ", ClientIP));
                        execute("/etc/dhcp/dhcp-dyndns.sh", "delete", ClientIP, "", "0");
                }
        }
---end snippet---

This was working on smart proxy 1.8.4, and it is failing on both 1.13.0 and 1.13.4.