add DragonFlyBSD support (#904)

- Mostly based on FreeBSD, the main exception is that
  `find_devs_with_on_freebsd` does not work.
- Since we cannot get the CDROM or the partition labels,
  `find_devs_with_on_dragonflybsd()` has a more naive approach and
  returns all the block devices.

2 files changed, 25 insertions, 2 deletions

diff --git a/cloudinit/distros/dragonflybsd.py b/cloudinit/distros/dragonflybsd.py
new file mode 100644
index 00000000..2d825518
--- /dev/null
+++ b/cloudinit/distros/dragonflybsd.py
@@ -0,0 +1,12 @@
+# Copyright (C) 2020-2021 Gonéri Le Bouder
+#
+# This file is part of cloud-init. See LICENSE file for license information.
+
+import cloudinit.distros.freebsd
+
+
+class Distro(cloudinit.distros.freebsd.Distro):
+    home_dir = '/home'
+
+
+# vi: ts=4 expandtab
diff --git a/cloudinit/distros/freebsd.py b/cloudinit/distros/freebsd.py
index 9659843f..d94a52b8 100644
--- a/cloudinit/distros/freebsd.py
+++ b/cloudinit/distros/freebsd.py
@@ -18,6 +18,12 @@ LOG = logging.getLogger(__name__)
 
 
 class Distro(cloudinit.distros.bsd.BSD):
+    """
+    Distro subclass for FreeBSD.
+
+    (N.B. DragonFlyBSD inherits from this class.)
+    """
+
     usr_lib_exec = '/usr/local/lib'
     login_conf_fn = '/etc/login.conf'
     login_conf_fn_bak = '/etc/login.conf.orig'
@@ -28,6 +34,7 @@ class Distro(cloudinit.distros.bsd.BSD):
     pkg_cmd_update_prefix = ["pkg", "update"]
     pkg_cmd_upgrade_prefix = ["pkg", "upgrade"]
     prefer_fqdn = True  # See rc.conf(5) in FreeBSD
+    home_dir = '/usr/home'
 
     def _get_add_member_to_group_cmd(self, member_name, group_name):
         return ['pw', 'usermod', '-n', member_name, '-G', group_name]
@@ -66,9 +73,12 @@ class Distro(cloudinit.distros.bsd.BSD):
             pw_useradd_cmd.append('-d/nonexistent')
             log_pw_useradd_cmd.append('-d/nonexistent')
         else:
-            pw_useradd_cmd.append('-d/usr/home/%s' % name)
+            pw_useradd_cmd.append('-d{home_dir}/{name}'.format(
+                home_dir=self.home_dir, name=name))
             pw_useradd_cmd.append('-m')
-            log_pw_useradd_cmd.append('-d/usr/home/%s' % name)
+            log_pw_useradd_cmd.append('-d{home_dir}/{name}'.format(
+                home_dir=self.home_dir, name=name))
+
             log_pw_useradd_cmd.append('-m')
 
         # Run the command
@@ -155,4 +165,5 @@ class Distro(cloudinit.distros.bsd.BSD):
             "update-sources", self.package_command,
             ["update"], freq=PER_INSTANCE)
 
+
 # vi: ts=4 expandtab