handle ifup on RH distros by iterating over 'ifup devname'

Fix the ifup so that if a list of devices is provided then each interface is
brought up individually instead of using the '--all' which isn't on rhel. 

The default debian behavior will be to use this still though as it overrides
the new bring up interfaces function for this case.

5 files changed, 28 insertions, 16 deletions

diff --git a/cloudinit/distros/__init__.py b/cloudinit/distros/__init__.py
index 612d44af..549c1612 100644
--- a/cloudinit/distros/__init__.py
+++ b/cloudinit/distros/__init__.py
@@ -34,12 +34,6 @@ from cloudinit import log as logging
 from cloudinit import ssh_util
 from cloudinit import util
 
-# TODO(harlowja): Make this via config??
-IFACE_ACTIONS = {
-    'up': ['ifup', '--all'],
-    'down': ['ifdown', '--all'],
-}
-
 LOG = logging.getLogger(__name__)
 
 
@@ -134,10 +128,10 @@ class Distro(object):
 
     def apply_network(self, settings, bring_up=True):
         # Write it out
-        self._write_network(settings)
+        dev_names = self._write_network(settings)
         # Now try to bring them up
         if bring_up:
-            return self._interface_action('up')
+            return self._bring_up_interfaces(dev_names)
         return False
 
     @abc.abstractmethod
@@ -189,13 +183,11 @@ class Distro(object):
             util.write_file(self._paths.join(False, "/etc/hosts"),
                             contents, mode=0644)
 
-    def _interface_action(self, action):
-        if action not in IFACE_ACTIONS:
-            raise NotImplementedError("Unknown interface action %s" % (action))
-        cmd = IFACE_ACTIONS[action]
+    def _bring_up_interface(self, device_name):
+        cmd = ['ifup', device_name]
+        LOG.debug("Attempting to run bring up interface %s using command %s",
+                   device_name, cmd)
         try:
-            LOG.debug("Attempting to run %s interface action using command %s",
-                      action, cmd)
             (_out, err) = util.subp(cmd)
             if len(err):
                 LOG.warn("Running %s resulted in stderr output: %s", cmd, err)
@@ -204,6 +196,15 @@ class Distro(object):
             util.logexc(LOG, "Running interface command %s failed", cmd)
             return False
 
+    def _bring_up_interfaces(self, device_names):
+        am_failed = 0
+        for d in device_names:
+            if not self._bring_up_interface(d):
+                am_failed += 1
+        if am_failed == 0:
+            return True
+        return False
+
     def isuser(self, name):
         try:
             if pwd.getpwnam(name):
diff --git a/cloudinit/distros/debian.py b/cloudinit/distros/debian.py
index 5b4aa9f8..88f4e978 100644
--- a/cloudinit/distros/debian.py
+++ b/cloudinit/distros/debian.py
@@ -56,6 +56,17 @@ class Distro(distros.Distro):
     def _write_network(self, settings):
         net_fn = self._paths.join(False, "/etc/network/interfaces")
         util.write_file(net_fn, settings)
+        return ['all']
+
+    def _bring_up_interfaces(self, device_names):
+        use_all = False
+        for d in device_names:
+            if d == 'all':
+                use_all = True
+        if use_all:
+            return distros.Distro._bring_up_interface(self, '--all')
+        else:
+            return distros.Distro._bring_up_interfaces(self, device_names)
 
     def set_hostname(self, hostname):
         out_fn = self._paths.join(False, "/etc/hostname")
diff --git a/cloudinit/distros/fedora.py b/cloudinit/distros/fedora.py
index e7092dd8..f65a820d 100644
--- a/cloudinit/distros/fedora.py
+++ b/cloudinit/distros/fedora.py
@@ -28,5 +28,4 @@ LOG = logging.getLogger(__name__)
 
 
 class Distro(rhel.Distro):
-    distro_name = 'fedora'
     default_user = 'ec2-user'
diff --git a/cloudinit/distros/rhel.py b/cloudinit/distros/rhel.py
index ec4dc2cc..0e451b02 100644
--- a/cloudinit/distros/rhel.py
+++ b/cloudinit/distros/rhel.py
@@ -88,6 +88,7 @@ class Distro(distros.Distro):
         # Make the intermediate format as the rhel format...
         nameservers = []
         searchservers = []
+        dev_names = entries.keys()
         for (dev, info) in entries.iteritems():
             net_fn = NETWORK_FN_TPL % (dev)
             net_ro_fn = self._paths.join(True, net_fn)
@@ -127,6 +128,7 @@ class Distro(distros.Distro):
             util.write_file(net_rw_fn, w_contents, 0644)
         if nameservers or searchservers:
             self._write_resolve(nameservers, searchservers)
+        return dev_names
 
     def set_hostname(self, hostname):
         out_fn = self._paths.join(False, '/etc/sysconfig/network')
diff --git a/cloudinit/distros/ubuntu.py b/cloudinit/distros/ubuntu.py
index 22f8c2c5..4e697f82 100644
--- a/cloudinit/distros/ubuntu.py
+++ b/cloudinit/distros/ubuntu.py
@@ -29,7 +29,6 @@ LOG = logging.getLogger(__name__)
 
 class Distro(debian.Distro):
 
-    distro_name = 'ubuntu'
     default_user = 'ubuntu'
     default_user_groups = ("adm,audio,cdrom,dialout,floppy,video,"
                             "plugdev,dip,netdev,sudo")