Rohit Yadav 4b45d25152 CLOUDSTACK-8272: Python based file-lock free password server implementation
- VRs are single CPU, so Threading based implementation favoured than Forking based
- Implements a Python based password server that does not use file based locks
- Saving password mechanism is provided by using secure token only to VR (localhost)
- Old serve_password implementation is removed
- Runs with Python 2.6+ with no external dependencies
- Locks used within threads for extra safety

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2015-03-12 13:56:28 +05:30
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