Index: cloud-init-0.7.9/cloudinit/distros/rhel.py

===================================================================

--- cloud-init-0.7.9.orig/cloudinit/distros/rhel.py

+++ cloud-init-0.7.9/cloudinit/distros/rhel.py

@@ -190,13 +190,18 @@ class Distro(distros.Distro):

         if pkgs is None:

             pkgs = []

-        cmd = ['yum']

-        # If enabled, then yum will be tolerant of errors on the command line

-        # with regard to packages.

-        # For example: if you request to install foo, bar and baz and baz is

-        # installed; yum won't error out complaining that baz is already

-        # installed.

-        cmd.append("-t")

+        if util.which('dnf'):

+            LOG.debug('Using DNF for package management')

+            cmd = ['dnf']

+        else:

+            LOG.debug('Using YUM for package management')

+            # the '-t' argument makes yum tolerant of errors on the command

+            # line with regard to packages.

+            #

+            # For example: if you request to install foo, bar and baz and baz

+            # is installed; yum won't error out complaining that baz is already

+            # installed.

+            cmd = ['yum', '-t']

         # Determines whether or not yum prompts for confirmation

         # of critical actions. We don't want to prompt...

         cmd.append("-y")