Add WWbool.BoolDefaultTrue()

New support in WWbool for booleans that default "true."

Used primarily for NetDev.OnBoot.

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

overlays/debian.interfaces/internal/debian_interfaces_test.go

@@ -54,6 +54,7 @@ writeFile: true
 Filename: default
 
 # This file is autogenerated by warewulf
+auto wwnet0
 allow-hotplug wwnet0
 iface wwnet0 inet static
   address 192.168.3.21
@@ -65,6 +66,7 @@ backupFile: true
 writeFile: true
 Filename: secondary
 # This file is autogenerated by warewulf
+auto wwnet1
 allow-hotplug wwnet1
 iface wwnet1 inet static
   address 192.168.3.22

overlays/debian.interfaces/rootfs/etc/network/interfaces.d/default.ww

@@ -1,7 +1,7 @@
 {{- range $devname, $netdev := .ThisNode.NetDevs }}
 {{ file $devname }}
 # This file is autogenerated by warewulf
-{{- if $netdev.OnBoot }}
+{{- if $netdev.OnBoot.BoolDefaultTrue }}
 auto {{ $netdev.Device }}
 {{- end }}
 allow-hotplug {{ $netdev.Device }}