Revision 2e1e6844 snf-cyclades-app/synnefo/logic/backend_allocator.py

b/snf-cyclades-app/synnefo/logic/backend_allocator.py
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from django.utils import importlib
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from synnefo.settings import (BACKEND_ALLOCATOR_MODULE, BACKEND_REFRESH_MIN,


  		





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                              BACKEND_PER_USER)


  		





  
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                              BACKEND_PER_USER, ARCHIPELAGOS_BACKENDS)


  		





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from synnefo.db.models import Backend


  		





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from synnefo.logic.backend import update_resources


  		





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from synnefo.api.util import backend_public_networks


  		





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        # Get available backends


  		





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        available_backends = get_available_backends()


  		





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        # Temporary fix for distinquishing archipelagos capable backends


  		





  
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        available_backends = filter_archipelagos_backends(available_backends,


  		





  
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                                                          flavor.disk_template)


  		





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        # Refresh backends, if needed


  		





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        refresh_backends_stats(available_backends)


  		





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    return filter(lambda x: has_free_ip(x), backends)


  		





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def filter_archipelagos_backends(available_backends, disk_template):


  		





  
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    if disk_template.startswith("ext_"):


  		





  
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        available_backends = filter(lambda x: x.id in ARCHIPELAGOS_BACKENDS,


  		





  
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                                    available_backends)


  		





  
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    else:


  		





  
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        available_backends = filter(lambda x: x.id not in ARCHIPELAGOS_BACKENDS,


  		





  
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                                    available_backends)


  		





  
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    return available_backends


  		





  
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def has_free_ip(backend):


  		





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    """Find if Backend has any free public IP."""


  		





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    for network in backend_public_networks(backend):


  		












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