feat: Add docs on k8s config file

Author: pojntfx

README.md

@@ -96,7 +96,7 @@ There are two client CLIs, `dhcpdctl` and `dhclientctl`.
 
 #### `dhcpdctl`
 
-You may also set the flags by setting env variables in the format `DHCPD_[FLAG]` (i.e. `DHCPD_DHCPD_CONFIGFILE=examples/dhcpd.yaml`) or by using a [configuration file](examples/dhcpd.yaml).
+You may also set the flags by setting env variables in the format `DHCPD_[FLAG]` (i.e. `DHCPD_DHCPD_CONFIGFILE=examples/dhcpd.yaml`) or by using a [configuration file](examples/dhcpd.yaml). If you want to get started on Kubernetes, see [this configuration file](examples/dhcpd-on-k8s.yaml)
 
 ```bash
 % dhcpdctl --help

examples/dhcpd-in-k8s.yaml renamed to examples/dhcpd-on-k8s.yaml

@@ -8,6 +8,8 @@ dhcpd:
   subnets:
     - netmask: 255.255.255.0
       network: 10.0.0.0
+      nextServer: 10.0.0.1 # Optional, for PXE boot
+      filename: undionly.kpxe # Optional, for PXE boot
       range:
-        start: 10.0.0.1
-        end: 10.0.0.254
+        start: 10.0.0.10
+        end: 10.0.0.100

examples/dhcpd.yaml

@@ -3,6 +3,8 @@ dhcpd:
   subnets:
     - netmask: 255.255.255.0
       network: 192.168.1.0
+      nextServer: 192.168.1.1 # Optional, for PXE boot
+      filename: undionly.kpxe # Optional, for PXE boot
       range:
         start: 192.168.1.10
         end: 192.168.1.100