159 lines
6.1 KiB
Python
159 lines
6.1 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (c) 2011 OpenStack, LLC.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Handles all request to the Platform or Guest VM
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"""
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import logging
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from reddwarf import rpc
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from reddwarf.common import config
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from reddwarf.common import exception
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from reddwarf.common import utils
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# from nova.db import api as dbapi
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LOG = logging.getLogger(__name__)
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class API(object):
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"""API for interacting with the guest manager."""
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def __init__(self, context, id):
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self.context = context
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self.id = id
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def _call(self, method_name, **kwargs):
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LOG.debug("Calling %s" % method_name)
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try:
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result = rpc.call(self.context, self._get_routing_key(),
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{"method": method_name, "args": kwargs})
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LOG.debug("Result is %s" % result)
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return result
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except Exception as e:
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LOG.error(e)
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raise exception.GuestError(original_message=str(e))
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def _cast(self, method_name, **kwargs):
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try:
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rpc.cast(self.context, self._get_routing_key(),
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{"method": method_name,
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"args": kwargs})
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except Exception as e:
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LOG.error(e)
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raise exception.GuestError(original_message=str(e))
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def _cast_with_consumer(self, method_name, **kwargs):
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try:
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rpc.cast_with_consumer(self.context, self._get_routing_key(),
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{"method": method_name, "args": kwargs})
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except Exception as e:
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LOG.error(e)
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raise exception.GuestError(original_message=str(e))
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def _get_routing_key(self):
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"""Create the routing key based on the container id"""
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return "guestagent.%s" % self.id
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def create_user(self, users):
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"""Make an asynchronous call to create a new database user"""
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LOG.debug(_("Creating Users for Instance %s"), self.id)
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self._cast("create_user", users=users)
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def list_users(self, limit=None, marker=None, include_marker=False):
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"""Make an asynchronous call to list database users"""
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LOG.debug(_("Listing Users for Instance %s"), self.id)
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return self._call("list_users", limit=limit, marker=marker,
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include_marker=include_marker)
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def delete_user(self, user):
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"""Make an asynchronous call to delete an existing database user"""
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LOG.debug(_("Deleting user %s for Instance %s"), user, self.id)
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return self._cast("delete_user", user=user)
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def create_database(self, databases):
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"""Make an asynchronous call to create a new database
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within the specified container"""
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LOG.debug(_("Creating databases for Instance %s"), self.id)
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self._cast("create_database", databases=databases)
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def list_databases(self, limit=None, marker=None, include_marker=False):
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"""Make an asynchronous call to list databases"""
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LOG.debug(_("Listing databases for Instance %s"), self.id)
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return self._call("list_databases", limit=limit, marker=marker,
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include_marker=include_marker)
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def delete_database(self, database):
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"""Make an asynchronous call to delete an existing database
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within the specified container"""
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LOG.debug(_("Deleting database %s for Instance %s"), database, self.id)
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self._cast("delete_database", database=database)
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def enable_root(self):
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"""Make a synchronous call to enable the root user for
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access from anywhere"""
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LOG.debug(_("Enable root user for Instance %s"), self.id)
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return self._call("enable_root")
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def disable_root(self):
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"""Make a synchronous call to disable the root user for
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access from anywhere"""
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LOG.debug(_("Disable root user for Instance %s"), self.id)
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return self._call("disable_root")
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def is_root_enabled(self):
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"""Make a synchronous call to check if root access is
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available for the container"""
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LOG.debug(_("Check root access for Instance %s"), self.id)
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return self._call("is_root_enabled")
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def get_diagnostics(self):
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"""Make a synchronous call to get diagnostics for the container"""
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LOG.debug(_("Check diagnostics on Instance %s"), self.id)
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return self._call("get_diagnostics")
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def prepare(self, memory_mb, databases, users,
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device_path='/dev/vdb', mount_point='/mnt/volume'):
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"""Make an asynchronous call to prepare the guest
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as a database container"""
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LOG.debug(_("Sending the call to prepare the Guest"))
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self._cast_with_consumer("prepare", databases=databases,
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memory_mb=memory_mb, users=users, device_path=device_path,
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mount_point=mount_point)
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def restart(self):
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"""Restart the MySQL server."""
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LOG.debug(_("Sending the call to restart MySQL on the Guest."))
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self._call("restart")
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def start_mysql_with_conf_changes(self, updated_memory_size):
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"""Start the MySQL server."""
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LOG.debug(_("Sending the call to start MySQL on the Guest."))
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self._call("start_mysql_with_conf_changes",
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updated_memory_size=updated_memory_size)
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def stop_mysql(self):
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"""Stop the MySQL server."""
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LOG.debug(_("Sending the call to stop MySQL on the Guest."))
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self._call("stop_mysql")
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def upgrade(self):
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"""Make an asynchronous call to self upgrade the guest agent"""
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LOG.debug(_("Sending an upgrade call to nova-guest"))
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self._cast_with_consumer("upgrade")
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