How to obtain the number of available fixed_ip of network
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Get the number of available fixed_ip of network-openstackE version
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Method 1: add the fixed_ip_count field directly to the bottom layer of nova:
Method 2: directly encapsulate the api from dashboard to the underlying layer:
Where api is published as follows:
The following are the details:
1. Dashboard page:
Dashboards/nova/zones_and_networks/views.py
Network_id = networks [0] ['id']
Count = api.nova.get_available_count_ips (self.request, network_id)
Api/nova.py
Def get_available_count_ips (request,network_id):
Return novaclient (request) networks.get_available_count_ips (network_id)
2. Novaclient layer
V1_1/networks.py
Def get_available_count_ips (self, network_id):
"
Get a specific flavor.
: param flavor: The ID of the: class: `Flavor` to get.
: rtype:: class: `Flavor`
"
Return self._list ("/ os-networks/get_available_count_ips/%s"% network_id, "count")
3. Nova layer
Api/openstack/compute/contrib/networks.py
Def get_available_count_ips (self, req, id):
Context = req.environ ['nova.context']
Authorize (context)
LOG.debug (_ ("Showing network_fixed_count with id s") id)
Try:
Count = self.network_api.get_available_count_ips (context, id)
Except exception.NetworkNotFound:
Raise exc.HTTPNotFound (_ (Network not found))
Return {'count': count}
Collection_actions = {'list_limit':' POST','get_available_count_ips': 'POST'}
Vi network/api.py
Def get_available_count_ips (self, context,network_id):
Return rpc.call (context
FLAGS.network_topic
{'method':' get_available_count_ips'
'args': {' network_id': network_id}})
Vi network/manager.py
@ wrap_check_policy
Def get_available_count_ips (self, context, network_id):
Count = db.network_available_count_ips (context, network_id)
Return count
Db/api.py
Def network_available_count_ips (context, network_id):
"Return the number of reserved ips in the network."
Return IMPL.network_available_count_ips (context, network_id)
Db/sqlalchemy/api.py
@ require_admin_context
Def network_available_count_ips (context, network_id):
Return _ network_ips_query (context, network_id).\
Filter_by (reserved=False).\
Filter_by (host='').\
Filter_by (instance_id='').\
Filter_by (allocated=False).\
Count ()
Note: be sure to follow the base.py to see how to pass parameters to _ list:
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