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.

1 files changed, 9 insertions, 2 deletions

diff --git a/cloudinit/net/freebsd.py b/cloudinit/net/freebsd.py
index c843d792..f8faf240 100644
--- a/cloudinit/net/freebsd.py
+++ b/cloudinit/net/freebsd.py
@@ -32,6 +32,13 @@ class Renderer(cloudinit.net.bsd.BSDRenderer):
             LOG.debug("freebsd generate postcmd disabled")
             return
 
+        for dhcp_interface in self.dhcp_interfaces():
+            # Observed on DragonFlyBSD 6. If we use the "restart" parameter,
+            # the routes are not recreated.
+            subp.subp(['service', 'dhclient', 'stop', dhcp_interface],
+                      rcs=[0, 1],
+                      capture=True)
+
         subp.subp(['service', 'netif', 'restart'], capture=True)
         # On FreeBSD 10, the restart of routing and dhclient is likely to fail
         # because
@@ -42,7 +49,7 @@ class Renderer(cloudinit.net.bsd.BSDRenderer):
         subp.subp(['service', 'routing', 'restart'], capture=True, rcs=[0, 1])
 
         for dhcp_interface in self.dhcp_interfaces():
-            subp.subp(['service', 'dhclient', 'restart', dhcp_interface],
+            subp.subp(['service', 'dhclient', 'start', dhcp_interface],
                       rcs=[0, 1],
                       capture=True)
 
@@ -57,4 +64,4 @@ class Renderer(cloudinit.net.bsd.BSDRenderer):
 
 
 def available(target=None):
-    return util.is_FreeBSD()
+    return util.is_FreeBSD() or util.is_DragonFlyBSD()