• Stavros Sachtouris's avatar
    Check server status before changing it · 19522a57
    Stavros Sachtouris authored
    Fixes grnet/kamaki#57
    
    This fix affects the CLI commands "server_start", "server_reboot"
    and "server_shutdown" which are specified in "kamaki.cli.cmds.cyclades".
    These are the operations that modify the status of a server.
    
    The problem was caused when the target status was the same as the current.
    In this case, the request for status modification would fail with a 400
    error code response. At this point, kamaki couldn't have adequate information
    to correctly evaluate the error.
    
    This problem is solved by checking the current status before attempting to
    modify it.  Also, the server ID is validated in advance, instead of waiting
    for a 400 server error.
    19522a57
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