# server-name data expression
# Kea has no server-name extractor in libeval

# authoritative is mandatory
authoritative;

# empty configs are not accepted by Kea
default-lease-time 1800;

# by filename superclass
class "byfn" {
    match server-name;
}

subclass "byfn" "foobar" {
    option domain-name-servers 10.5.5.1;
}

# raw
option bootfile-name = concat(server-name, "/", option host-name);