initial vendordata support

This adds the ability for a datasource to provide "vendordata".
The difference here is that vendordata is from the vendor (cloud provider)
where user-data is from the user.  By enabling this channel, the vendor
can have input on how the instance is set up without modifying or needing
to understand the user-data.

vendordata is generally consumed exactly like user-data, but the user
has the ability to disable its consumption.

The only datasource supporting this at the moment is SmartOS.

1 files changed, 43 insertions, 0 deletions

diff --git a/cloudinit/config/cc_scripts_vendor.py b/cloudinit/config/cc_scripts_vendor.py
new file mode 100644
index 00000000..0c9e504e
--- /dev/null
+++ b/cloudinit/config/cc_scripts_vendor.py
@@ -0,0 +1,43 @@
+# vi: ts=4 expandtab
+#
+#    Copyright (C) 2014 Canonical Ltd.
+#
+#    Author: Ben Howard <ben.howard@canonical.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+
+from cloudinit import util
+
+from cloudinit.settings import PER_INSTANCE
+
+frequency = PER_INSTANCE
+
+SCRIPT_SUBDIR = 'vendor'
+
+
+def handle(name, cfg, cloud, log, _args):
+    # This is written to by the vendor data handlers
+    # any vendor data shell scripts get placed in runparts_path
+    runparts_path = os.path.join(cloud.get_ipath_cur(), 'scripts',
+                                 SCRIPT_SUBDIR)
+
+    prefix = util.get_cfg_by_path(cfg, ('vendor_data', 'prefix'), [])
+
+    try:
+        util.runparts(runparts_path, exe_prefix=prefix)
+    except:
+        log.warn("Failed to run module %s (%s in %s)",
+                 name, SCRIPT_SUBDIR, runparts_path)
+        raise