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resources.py
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/
resources.py
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# Copyright (C) 2015 Catalyst IT Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from datetime import timedelta
from django.utils import timezone
from confspirator import groups
from confspirator import fields
from adjutant.actions.v1.base import BaseAction, ProjectMixin, QuotaMixin
from adjutant.actions.v1 import serializers
from adjutant.actions.utils import validate_steps
from adjutant.common import openstack_clients, user_store
from adjutant.api import models
from adjutant.common.quota import QuotaManager
from adjutant.config import CONF
class NewDefaultNetworkAction(BaseAction, ProjectMixin):
"""
This action will setup all required basic networking
resources so that a new user can launch instances
right away.
"""
required = [
"setup_network",
"project_id",
"region",
]
serializer = serializers.NewDefaultNetworkSerializer
config_group = groups.DynamicNameConfigGroup(
children=[
groups.ConfigGroup(
"region_defaults",
children=[
fields.StrConfig(
"network_name",
help_text="Name to be given to the default network.",
default="default_network",
),
fields.StrConfig(
"subnet_name",
help_text="Name to be given to the default subnet.",
default="default_subnet",
),
fields.StrConfig(
"router_name",
help_text="Name to be given to the default router.",
default="default_router",
),
fields.StrConfig(
"public_network",
help_text="ID of the public network.",
),
fields.StrConfig(
"subnet_cidr",
help_text="CIDR for the default subnet.",
),
fields.ListConfig(
"dns_nameservers",
help_text="DNS nameservers for the subnet.",
),
],
),
fields.DictConfig(
"regions",
help_text="Specific per region config for default network. "
"See 'region_defaults'.",
default={},
),
]
)
def __init__(self, *args, **kwargs):
super(NewDefaultNetworkAction, self).__init__(*args, **kwargs)
def _validate_region(self):
if not self.region:
self.add_note("ERROR: No region given.")
return False
id_manager = user_store.IdentityManager()
region = id_manager.get_region(self.region)
if not region:
self.add_note("ERROR: Region does not exist.")
return False
self.add_note("Region: %s exists." % self.region)
return True
def _validate(self):
self.action.valid = validate_steps(
[
self._validate_region,
self._validate_project_id,
self._validate_keystone_user_project_id,
]
)
self.action.save()
def _create_network(self):
neutron = openstack_clients.get_neutronclient(region=self.region)
try:
region_config = self.config.regions[self.region]
network_config = self.config.region_defaults.overlay(region_config)
except KeyError:
network_config = self.config.region_defaults
if not self.get_cache("network_id"):
try:
network_body = {
"network": {
"name": network_config.network_name,
"tenant_id": self.project_id,
"admin_state_up": True,
}
}
network = neutron.create_network(body=network_body)
except Exception as e:
self.add_note(
"Error: '%s' while creating network: %s"
% (e, network_config.network_name)
)
raise
self.set_cache("network_id", network["network"]["id"])
self.add_note(
"Network %s created for project %s"
% (network_config.network_name, self.project_id)
)
else:
self.add_note(
"Network %s already created for project %s"
% (network_config.network_name, self.project_id)
)
if not self.get_cache("subnet_id"):
try:
subnet_body = {
"subnet": {
"network_id": self.get_cache("network_id"),
"ip_version": 4,
"tenant_id": self.project_id,
"dns_nameservers": network_config.dns_nameservers,
"cidr": network_config.subnet_cidr,
}
}
subnet = neutron.create_subnet(body=subnet_body)
except Exception as e:
self.add_note("Error: '%s' while creating subnet" % e)
raise
self.set_cache("subnet_id", subnet["subnet"]["id"])
self.add_note("Subnet created for network %s" % network_config.network_name)
else:
self.add_note(
"Subnet already created for network %s" % network_config.network_name
)
if not self.get_cache("router_id"):
try:
router_body = {
"router": {
"name": network_config.router_name,
"external_gateway_info": {
"network_id": network_config.public_network
},
"tenant_id": self.project_id,
"admin_state_up": True,
}
}
router = neutron.create_router(body=router_body)
except Exception as e:
self.add_note(
"Error: '%s' while creating router: %s"
% (e, network_config.router_name)
)
raise
self.set_cache("router_id", router["router"]["id"])
self.add_note("Router created for project %s" % self.project_id)
else:
self.add_note("Router already created for project %s" % self.project_id)
if not self.get_cache("port_id"):
try:
interface_body = {"subnet_id": self.get_cache("subnet_id")}
interface = neutron.add_interface_router(
self.get_cache("router_id"), body=interface_body
)
except Exception as e:
self.add_note("Error: '%s' while attaching interface" % e)
raise
self.set_cache("port_id", interface["port_id"])
self.add_note("Interface added to router for subnet")
else:
self.add_note("Interface added to router for project %s" % self.project_id)
def _prepare(self):
# Note: Do we need to get this from cache? it is a required setting
# self.project_id = self.action.task.cache.get('project_id', None)
self._validate()
def _approve(self):
self._validate()
if self.setup_network and self.valid:
self._create_network()
def _submit(self, token_data, keystone_user=None):
pass
class NewProjectDefaultNetworkAction(NewDefaultNetworkAction):
"""
A variant of NewDefaultNetwork that expects the project
to not be created until after approve.
"""
required = [
"setup_network",
"region",
]
serializer = serializers.NewProjectDefaultNetworkSerializer
def _pre_validate(self):
# Note: Don't check project here as it doesn't exist yet.
self.action.valid = validate_steps(
[
self._validate_region,
]
)
self.action.save()
def _validate(self):
self.action.valid = validate_steps(
[
self._validate_region,
self._validate_project_id,
]
)
self.action.save()
def _prepare(self):
self._pre_validate()
def _approve(self):
self.project_id = self.action.task.cache.get("project_id", None)
self._validate()
if self.setup_network and self.valid:
self._create_network()
class UpdateProjectQuotasAction(BaseAction, QuotaMixin):
"""Updates quota for a project to a given size in a list of regions"""
required = [
"size",
"project_id",
"regions",
]
serializer = serializers.UpdateProjectQuotasSerializer
config_group = groups.DynamicNameConfigGroup(
children=[
fields.FloatConfig(
"size_difference_threshold",
help_text="Precentage different allowed when matching quota sizes.",
default=0.1,
min=0,
max=1,
),
fields.IntConfig(
"days_between_autoapprove",
help_text="The allowed number of days between auto approved quota changes.",
default=30,
),
]
)
def _get_email(self):
if CONF.identity.username_is_email:
return self.action.task.keystone_user["username"]
else:
id_manager = user_store.IdentityManager()
user = id_manager.get_user(self.action.task.keystone_user["user_id"])
email = getattr(user, "email", None)
if email:
return email
self.add_note("User email address not set.")
return None
def _validate_quota_size_exists(self):
size_list = CONF.quota.sizes.keys()
if self.size not in size_list:
self.add_note("Quota size: %s does not exist" % self.size)
return False
return True
def _set_region_quota(self, region_name, quota_size):
# Set the quota for an individual region
quota_config = CONF.quota.sizes.get(quota_size, {})
if not quota_config:
self.add_note(
"Project quota not defined for size '%s' in region %s."
% (quota_size, region_name)
)
return
quota_manager = QuotaManager(
self.project_id, self.config.size_difference_threshold
)
quota_manager.set_region_quota(region_name, quota_config)
self.add_note(
"Project quota for region %s set to %s" % (region_name, quota_size)
)
def _can_auto_approve(self):
wait_days = self.config.days_between_autoapprove
task_list = models.Task.objects.filter(
completed_on__gte=timezone.now() - timedelta(days=wait_days),
task_type__exact=self.action.task.task_type,
cancelled__exact=False,
project_id__exact=self.project_id,
)
changed_in_period = False
# Check to see if there have been any updates in the relavent regions
# recently
for task in task_list:
for action in task.actions:
intersect = set(action.action_data["regions"]).intersection(
self.regions
)
if intersect:
changed_in_period = True
region_sizes = []
quota_manager = QuotaManager(
self.project_id, self.config.size_difference_threshold
)
for region in self.regions:
current_size = quota_manager.get_region_quota_data(
region, include_usage=False
)["current_quota_size"]
region_sizes.append(current_size)
self.add_note(
"Project has size '%s' in region: '%s'" % (current_size, region)
)
# Check for preapproved_quotas
preapproved_quotas = []
smaller_quotas = []
# If all region sizes are the same
if region_sizes.count(region_sizes[0]) == len(region_sizes):
preapproved_quotas = quota_manager.get_quota_change_options(region_sizes[0])
smaller_quotas = quota_manager.get_smaller_quota_options(region_sizes[0])
if self.size in smaller_quotas:
self.add_note(
"Quota size '%s' is in list of smaller quotas: %s"
% (self.size, smaller_quotas)
)
return True
if changed_in_period:
self.add_note(
"Quota has already been updated within the auto " "approve time limit."
)
return False
if self.size not in preapproved_quotas:
self.add_note(
"Quota size '%s' not in preapproved list: %s"
% (self.size, preapproved_quotas)
)
return False
self.add_note(
"Quota size '%s' in preapproved list: %s" % (self.size, preapproved_quotas)
)
return True
def _validate(self):
# Make sure the project id is valid and can be used
self.action.valid = validate_steps(
[
self._validate_project_id,
self._validate_quota_size_exists,
self._validate_regions_exist,
self._validate_usage_lower_than_quota,
]
)
self.action.save()
def _prepare(self):
self._validate()
# Set auto-approval
self.set_auto_approve(self._can_auto_approve())
def _approve(self):
self._validate()
if not self.valid or self.action.state == "completed":
return
# Use manager here instead, it will make it easier to add has_more
# in later
for region in self.regions:
self._set_region_quota(region, self.size)
self.action.state = "completed"
self.action.task.cache["project_id"] = self.project_id
self.action.task.cache["size"] = self.size
self.action.save()
def _submit(self, token_data, keystone_user=None):
"""
Nothing to do here. Everything is done at approve.
"""
pass
class SetProjectQuotaAction(UpdateProjectQuotasAction):
"""Updates quota for a given project to a configured quota level"""
required = []
serializer = serializers.SetProjectQuotaSerializer
config_group = UpdateProjectQuotasAction.config_group.extend(
children=[
fields.DictConfig(
"region_sizes",
help_text="Which quota size to use for which region.",
default={},
sample_default={"RegionOne": "small"},
),
]
)
def _get_email(self):
return None
def _validate(self):
# Make sure the project id is valid and can be used
self.action.valid = validate_steps(
[
self._validate_project_id,
]
)
self.action.save()
def _prepare(self):
# Nothing to validate yet
self.action.valid = True
self.action.save()
def _approve(self):
# Assumption: another action has placed the project_id into the cache.
self.project_id = self.action.task.cache.get("project_id", None)
self._validate()
if not self.valid or self.action.state == "completed":
return
# update quota for each openstack service
for region_name, region_size in self.config.region_sizes.items():
self._set_region_quota(region_name, region_size)
self.action.state = "completed"
self.action.save()
def _submit(self, token_data, keystone_user=None):
pass