To fix this issue an SRU is needed for karmic:

1. fix euca-run-instances to only encode user-data once to mimic what 
ec2-run-instances does
2. fix eucalyptus soap|rest interface to not fail when user-data is sent by 
euca-run-instances.


** Description changed:

  User data supplied using "euca-run-instances --user-data-file" is not decoded 
before being presented to the instance. 
  Inside the instance, "curl http://169.254.169.254/latest/user-data"; should 
fetch the decoded user data, whereas eucalyptus will return a base64 and url 
encoded string. This breaks ec2-run-user-data from the ec2-init package, 
rendering instance configuration using the user-data mechanism unusable. 
  
  EC2 documentation at 
http://docs.amazonwebservices.com/AWSEC2/2007-03-01/DeveloperGuide/AESDG-chapter-instancedata.html
 states that EC2 will return decoded data (i don't have a ec2 account so i 
can't confirm this):
  "The user data must be base64-encoded before being submitted to the API. The 
API command-line tools perform the base64-encoding for you. The data will be 
base64 decoded before being presented to the instance."
+ 
+ =================
+ Karmic release notes:
+ 
+ user-data not usable by guest instances
+ 
+ Starting an instance with euca-run-instances and user-data (either using
+ the -d option the -f option) will store the user data  in base64
+ encoding. Accessing the user data from the instance at
+ http://169.254.169.254/latest/user-data will return the user data in
+ base64 encoding. Because of this bug ec2-init is unable make use of
+ user-data. In order to use this data it must first be decoded. A fix for
+ this issue is expected to be provided in a post-release update
+ immediately after the Ubuntu 9.10 release.
+ 
+ ==================

** Changed in: ubuntu-release-notes
       Status: Confirmed => In Progress

-- 
User data is not parsed correctly by Eucalyptus in some cases
https://bugs.launchpad.net/bugs/461156
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