First draft of chroot implementation for Debian

- RHEL chroot code has been moved into a bind::chroot::package class

- Debian family (and probably other families) can use the
  `bind::chroot::manual` class to enable chroot for bind using the method
  described here: https://wiki.debian.org/Bind9#Bind_Chroot

data/common.yaml

@@ -1,6 +1,7 @@
 ---
 bind::defaults::supported: false
 bind::defaults::chroot_supported: false
+bind::defaults::chroot_class: ''
 bind::defaults::random_device: '/dev/random'
 
 bind::forwarders: ''

data/osfamily/Debian-8.yaml

@@ -0,0 +1 @@
+bind::defaults::chroot_supported: true

data/osfamily/Debian-9.yaml

@@ -0,0 +1 @@
+bind::defaults::chroot_supported: true

data/osfamily/Debian.yaml

@@ -12,5 +12,7 @@ bind::defaults::logdir: '/var/log/bind'
 bind::defaults::default_zones_include: '/etc/bind/named.conf.default-zones'
 bind::defaults::isc_bind_keys: '/etc/bind/bind.keys'
 
+bind::defaults::chroot_dir: '/var/bind9/chroot'
+bind::defaults::chroot_class: bind::chroot::manual
+
 bind::updater::keydir: '/etc/bind/keys'
-bind::defaults::bind_chroot_dir: '/var/lib/named/chroot'

data/osfamily/RedHat.yaml

@@ -14,8 +14,9 @@ bind::defaults::default_zones_include: '/etc/named.default-zones.conf'
 bind::defaults::default_zones_source: 'puppet:///modules/bind/RedHat/named.default-zones.conf'
 bind::defaults::isc_bind_keys: '/etc/named.iscdlv.key'
 
-bind::defaults::bind_chroot_package: 'bind-chroot'
-bind::defaults::bind_chroot_service: 'named-chroot'
-bind::defaults::bind_chroot_dir: '/var/named/chroot'
+# XXX bind::defaults::chroot_package: 'bind-chroot'
+# XXX bind::defaults::chroot_service: 'named-chroot'
+# XXX bind::defaults::chroot_dir: '/var/named/chroot'
+bind::defaults::chroot_class: bind::chroot::package
 
 bind::updater::keydir: '/etc/named/keys'