x/gantt
Code Issues Proposed changes

Several changes designed to bring the openstack api 1.1 closer to spec

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- add ram limits to the nova compute quotas
- enable injected file limits and injected file size limits to be overridden in the quota database table
- expose quota limits as absolute limits in the openstack api 1.1 limits resource
- add support for controlling 'unlimited' quotas to nova-manage
This commit is contained in:
Mark Washenberger
2011-05-25 20:35:16 +00:00
committed by Tarmac
parent f1877feeb5 ed1842f3d1
commit 5835f462ec
2 changed files with 72 additions and 42 deletions
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6
bin/nova-manage
View File

@@ -417,12 +417,16 @@ class ProjectCommands(object):
arguments: project_id [key] [value]"""
ctxt = context.get_admin_context()
if key:
if value.lower() == 'unlimited':
value = None
try:
db.quota_update(ctxt, project_id, key, value)
except exception.ProjectQuotaNotFound:
db.quota_create(ctxt, project_id, key, value)
project_quota = quota.get_quota(ctxt, project_id)
project_quota = quota.get_project_quotas(ctxt, project_id)
for key, value in project_quota.iteritems():
if value is None:
value = 'unlimited'
print '%s: %s' % (key, value)
def remove(self, project_id, user_id):

108
nova/quota.py
View File

@@ -28,6 +28,8 @@ flags.DEFINE_integer('quota_instances', 10,
'number of instances allowed per project')
flags.DEFINE_integer('quota_cores', 20,
'number of instance cores allowed per project')
flags.DEFINE_integer('quota_ram', 50 * 1024,
'megabytes of instance ram allowed per project')
flags.DEFINE_integer('quota_volumes', 10,
'number of volumes allowed per project')
flags.DEFINE_integer('quota_gigabytes', 1000,
@@ -44,14 +46,28 @@ flags.DEFINE_integer('quota_max_injected_file_path_bytes', 255,
'number of bytes allowed per injected file path')
def get_quota(context, project_id):
rval = {'instances': FLAGS.quota_instances,
'cores': FLAGS.quota_cores,
'volumes': FLAGS.quota_volumes,
'gigabytes': FLAGS.quota_gigabytes,
'floating_ips': FLAGS.quota_floating_ips,
'metadata_items': FLAGS.quota_metadata_items}
def _get_default_quotas():
defaults = {
'instances': FLAGS.quota_instances,
'cores': FLAGS.quota_cores,
'ram': FLAGS.quota_ram,
'volumes': FLAGS.quota_volumes,
'gigabytes': FLAGS.quota_gigabytes,
'floating_ips': FLAGS.quota_floating_ips,
'metadata_items': FLAGS.quota_metadata_items,
'injected_files': FLAGS.quota_max_injected_files,
'injected_file_content_bytes':
FLAGS.quota_max_injected_file_content_bytes,
}
# -1 in the quota flags means unlimited
for key in defaults.keys():
if defaults[key] == -1:
defaults[key] = None
return defaults
def get_project_quotas(context, project_id):
rval = _get_default_quotas()
quota = db.quota_get_all_by_project(context, project_id)
for key in rval.keys():
if key in quota:
@@ -65,71 +81,81 @@ def _get_request_allotment(requested, used, quota):
return quota - used
def allowed_instances(context, num_instances, instance_type):
"""Check quota and return min(num_instances, allowed_instances)."""
def allowed_instances(context, requested_instances, instance_type):
"""Check quota and return min(requested_instances, allowed_instances)."""
project_id = context.project_id
context = context.elevated()
num_cores = num_instances * instance_type['vcpus']
used_instances, used_cores = db.instance_data_get_for_project(context,
project_id)
quota = get_quota(context, project_id)
allowed_instances = _get_request_allotment(num_instances, used_instances,
requested_cores = requested_instances * instance_type['vcpus']
requested_ram = requested_instances * instance_type['memory_mb']
usage = db.instance_data_get_for_project(context, project_id)
used_instances, used_cores, used_ram = usage
quota = get_project_quotas(context, project_id)
allowed_instances = _get_request_allotment(requested_instances,
used_instances,
quota['instances'])
allowed_cores = _get_request_allotment(num_cores, used_cores,
allowed_cores = _get_request_allotment(requested_cores, used_cores,
quota['cores'])
allowed_ram = _get_request_allotment(requested_ram, used_ram, quota['ram'])
allowed_instances = min(allowed_instances,
int(allowed_cores // instance_type['vcpus']))
return min(num_instances, allowed_instances)
allowed_cores // instance_type['vcpus'],
allowed_ram // instance_type['memory_mb'])
return min(requested_instances, allowed_instances)
def allowed_volumes(context, num_volumes, size):
"""Check quota and return min(num_volumes, allowed_volumes)."""
def allowed_volumes(context, requested_volumes, size):
"""Check quota and return min(requested_volumes, allowed_volumes)."""
project_id = context.project_id
context = context.elevated()
size = int(size)
num_gigabytes = num_volumes * size
requested_gigabytes = requested_volumes * size
used_volumes, used_gigabytes = db.volume_data_get_for_project(context,
project_id)
quota = get_quota(context, project_id)
allowed_volumes = _get_request_allotment(num_volumes, used_volumes,
quota = get_project_quotas(context, project_id)
allowed_volumes = _get_request_allotment(requested_volumes, used_volumes,
quota['volumes'])
allowed_gigabytes = _get_request_allotment(num_gigabytes, used_gigabytes,
allowed_gigabytes = _get_request_allotment(requested_gigabytes,
used_gigabytes,
quota['gigabytes'])
allowed_volumes = min(allowed_volumes,
int(allowed_gigabytes // size))
return min(num_volumes, allowed_volumes)
return min(requested_volumes, allowed_volumes)
def allowed_floating_ips(context, num_floating_ips):
"""Check quota and return min(num_floating_ips, allowed_floating_ips)."""
def allowed_floating_ips(context, requested_floating_ips):
"""Check quota and return min(requested, allowed) floating ips."""
project_id = context.project_id
context = context.elevated()
used_floating_ips = db.floating_ip_count_by_project(context, project_id)
quota = get_quota(context, project_id)
allowed_floating_ips = _get_request_allotment(num_floating_ips,
quota = get_project_quotas(context, project_id)
allowed_floating_ips = _get_request_allotment(requested_floating_ips,
used_floating_ips,
quota['floating_ips'])
return min(num_floating_ips, allowed_floating_ips)
return min(requested_floating_ips, allowed_floating_ips)
def allowed_metadata_items(context, num_metadata_items):
"""Check quota; return min(num_metadata_items,allowed_metadata_items)."""
project_id = context.project_id
context = context.elevated()
quota = get_quota(context, project_id)
allowed_metadata_items = _get_request_allotment(num_metadata_items, 0,
quota['metadata_items'])
return min(num_metadata_items, allowed_metadata_items)
def _calculate_simple_quota(context, resource, requested):
"""Check quota for resource; return min(requested, allowed)."""
quota = get_project_quotas(context, context.project_id)
allowed = _get_request_allotment(requested, 0, quota[resource])
return min(requested, allowed)
def allowed_injected_files(context):
def allowed_metadata_items(context, requested_metadata_items):
"""Return the number of metadata items allowed."""
return _calculate_simple_quota(context, 'metadata_items',
requested_metadata_items)
def allowed_injected_files(context, requested_injected_files):
"""Return the number of injected files allowed."""
return FLAGS.quota_max_injected_files
return _calculate_simple_quota(context, 'injected_files',
requested_injected_files)
def allowed_injected_file_content_bytes(context):
def allowed_injected_file_content_bytes(context, requested_bytes):
"""Return the number of bytes allowed per injected file content."""
return FLAGS.quota_max_injected_file_content_bytes
resource = 'injected_file_content_bytes'
return _calculate_simple_quota(context, resource, requested_bytes)
def allowed_injected_file_path_bytes(context):