Increase the robustness/configurability of the chef module...

Add the following adjustments to the chef template and module:

- Make it so that the chef directories can be provided (defaults
  to the existing directories)
- Make the params much more configurable, and if a parameter is
  provided in the chef configuration it will override existing template
  parameters.
- Make the template skip lines if the values are None in the configuration
  so that template lines can be removed if/when this is desirable.
- Allow the firstboot json path to be configurable (defaults to the
  existing location).
- Adds a basic set of tests to ensure that good things are happening.
- Make a helper function to tell if already installed.
- Have the install routine not run chef after installed but have it instead
  return a result to tell the caller to run the chef program once completed.
- Use the generated_by() utility function to give the ruby template a
  better header comment.
- Set special parameters after selecting the basic chef parameters.
- Allow for the running after install and run arguments to be configured.
- Allow the omnibus url fetching retries to be configurable.
- Move the chef running to its own helper function
- Add module docs

1 files changed, 4 insertions, 0 deletions

diff --git a/cloudinit/util.py b/cloudinit/util.py
index 4bb73c11..b71057fb 100644
--- a/cloudinit/util.py
+++ b/cloudinit/util.py
@@ -399,6 +399,10 @@ def get_cfg_option_str(yobj, key, default=None):
     return val
 
 
+def get_cfg_option_int(yobj, key, default=0):
+    return int(get_cfg_option_str(yobj, key, default=default))
+
+
 def system_info():
     return {
         'platform': platform.platform(),