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# Copyright (c) 2011 OpenStack Foundation
# All Rights Reserved.
#
# 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 troveclient import base
import urlparse
from troveclient.common import check_for_exceptions
from troveclient.common import limit_url
from troveclient.common import Paginated
from troveclient.openstack.common.apiclient import exceptions
REBOOT_SOFT, REBOOT_HARD = 'SOFT', 'HARD'
class Instance(base.Resource):
"""
An Instance is an opaque instance used to store Database instances.
"""
def __repr__(self):
return "<Instance: %s>" % self.name
def list_databases(self):
return self.manager.databases.list(self)
def delete(self):
"""
Delete the instance.
"""
self.manager.delete(self)
def restart(self):
"""
Restart the database instance
"""
self.manager.restart(self.id)
class Instances(base.ManagerWithFind):
"""
Manage :class:`Instance` resources.
"""
resource_class = Instance
def create(self, name, flavor_id, volume=None, databases=None, users=None,
restorePoint=None, availability_zone=None):
"""
Create (boot) a new instance.
"""
body = {"instance": {
"name": name,
"flavorRef": flavor_id
}}
if volume:
body["instance"]["volume"] = volume
if databases:
body["instance"]["databases"] = databases
if users:
body["instance"]["users"] = users
if restorePoint:
body["instance"]["restorePoint"] = restorePoint
if availability_zone:
body["instance"]["availability_zone"] = availability_zone
return self._create("/instances", body, "instance")
def _list(self, url, response_key, limit=None, marker=None):
resp, body = self.api.client.get(limit_url(url, limit, marker))
if not body:
raise Exception("Call to " + url + " did not return a body.")
links = body.get('links', [])
next_links = [link['href'] for link in links if link['rel'] == 'next']
next_marker = None
for link in next_links:
# Extract the marker from the url.
parsed_url = urlparse.urlparse(link)
query_dict = dict(urlparse.parse_qsl(parsed_url.query))
next_marker = query_dict.get('marker', None)
instances = body[response_key]
instances = [self.resource_class(self, res) for res in instances]
return Paginated(instances, next_marker=next_marker, links=links)
def list(self, limit=None, marker=None):
"""
Get a list of all instances.
:rtype: list of :class:`Instance`.
"""
return self._list("/instances", "instances", limit, marker)
def get(self, instance):
"""
Get a specific instances.
:rtype: :class:`Instance`
"""
return self._get("/instances/%s" % base.getid(instance),
"instance")
def backups(self, instance):
"""
Get the list of backups for a specific instance.
:rtype: list of :class:`Backups`.
"""
return self._list("/instances/%s/backups" % base.getid(instance),
"backups")
def delete(self, instance):
"""
Delete the specified instance.
:param instance_id: The instance id to delete
"""
resp, body = self.api.client.delete("/instances/%s" %
base.getid(instance))
if resp.status_code in (422, 500):
raise exceptions.from_response(resp, body)
def _action(self, instance_id, body):
"""
Perform a server "action" -- reboot/rebuild/resize/etc.
"""
url = "/instances/%s/action" % instance_id
resp, body = self.api.client.post(url, body=body)
check_for_exceptions(resp, body)
if body:
return self.resource_class(self, body, loaded=True)
return body
def resize_volume(self, instance_id, volume_size):
"""
Resize the volume on an existing instances
"""
body = {"resize": {"volume": {"size": volume_size}}}
self._action(instance_id, body)
def resize_instance(self, instance_id, flavor_id):
"""
Resize the volume on an existing instances
"""
body = {"resize": {"flavorRef": flavor_id}}
self._action(instance_id, body)
def restart(self, instance_id):
"""
Restart the database instance.
:param instance_id: The :class:`Instance` (or its ID) to share onto.
"""
body = {'restart': {}}
self._action(instance_id, body)
Instances.resize_flavor = Instances.resize_instance
class InstanceStatus(object):
ACTIVE = "ACTIVE"
BLOCKED = "BLOCKED"
BUILD = "BUILD"
FAILED = "FAILED"
REBOOT = "REBOOT"
RESIZE = "RESIZE"
SHUTDOWN = "SHUTDOWN"
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