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import logging
from collections import defaultdict
from sjrpc.core import RpcError
from ccserver.orderedset import OrderedSet
from ccserver.conf import CCConf
from ccserver.exceptions import (AlreadyRegistered, AuthenticationError,
RightError, ReservedTagError, BadObjectError,
BadRoleError, NotConnectedAccountError,
CloneError)
from ccserver.election import Elector
from ccserver.handlers import listed, Reporter
from ccserver.clients import Client, RegisteredCCHandler
from cloudcontrol.common.tql.db.tag import StaticTag
MIGRATION_TYPES = {'cold': 'cold_migrate',
'hot': 'hot_migrate',}
class CliHandler(RegisteredCCHandler):
""" Handler binded to 'cli' role.
Summary of methods:
================ ================================ =============
Method name Description Right(s)
================ ================================ =============
list list objects list
start start a vm start
stop stop a vm stop
destroy destroy a vm destroy
pause suspend a vm pause
resume resume a paused vm resume
passwd change password of accounts passwd
addaccount add a new account addaccount
copyaccount copy an account addaccount
addtag add a tag to accounts addtag
deltag remove a tag from accounts deltag
tags show tags of accounts tags
delaccount delete an account delaccount
close close an account close
declose declose an account declose
kill kill a connected account kill
rights show rights of accounts rights
addright add right rules to accounts addright
delright remove right rules from accounts delright
execute execute remote command on hosts execute
shutdown shutdown a connected client shutdown
jobs show jobs jobs
cancel cancel a running job cancel
jobspurge remove done jobs from jobs list jobspurge
================ ================================ =============
"""
@listed
def list(self, query):
""" List all objects registered on this instance.
:param query: the query to select objects to show
"""
self.check('list', query)
logging.debug('Executed list function with query %s', query)
objects = self.server.list(query)
order = OrderedSet(['id'])
#if tags is not None:
# order |= OrderedSet(tags)
return {'objects': objects, 'order': list(order)}
def _vm_action(self, query, method, *args, **kwargs):
""" Do an action on a virtual machine.
"""
errs = Reporter()
# Search all hypervisors of selected vms:
for vm in self.server.list(query, show=('r', 'h', 'p')):
if vm['r'] != 'vm':
errs.error(vm['id'], 'not a vm')
else:
hvclient = self.server.get_client(vm['p'])
if hvclient is None:
errs.error(vm['id'], 'offline hypervisor')
else:
try:
hvclient.vm_action(method, vm['h'])
except Exception as err:
errs.error(vm['id'], str(err))
else:
errs.success(vm['id'], 'ok')
return errs.get_dict()
@listed
def start(self, query):
""" Start a virtual machine.
"""
self.check('start', query)
return self._vm_action(query, 'vm_start')
@listed
def stop(self, query):
""" Stop a virtual machine.
"""
self.check('stop', query)
return self._vm_action(query, 'vm_stop')
@listed
def destroy(self, query):
""" Destroy (hard shutdown) a virtual machine.
"""
self.check('destroy', query)
return self._vm_action(query, 'vm_destroy')
@listed
def pause(self, query):
""" Pause a virtual machine.
"""
self.check('pause', query)
return self._vm_action(query, 'vm_suspend')
@listed
def resume(self, query):
""" Resume a virtual machine.
"""
self.check('resume', query)
return self._vm_action(query, 'vm_resume')
@listed
def undefine(self, query, delete_storage=True):
""" Undefine selected virtual machines.
:param query: the tql query to select objects.
:param delete_storage: delete storage of vm.
:return: a dict where key is the id of a selected object, and the value
a tuple (errcode, message) where errcode is (success|error|warn) and
message an error message or the output of the command in case of
success.
"""
self.check('undefine', query)
#FIXME: When tag globbing will be implemented, the list of tags to
# show will be: r, p, h, disk*
# I ask "all tags" pending implementation.
objects = self.server.list(query, show=('*',))
errs = Reporter()
for obj in objects:
if obj['r'] != 'vm':
errs.error(obj['id'], 'bad role')
continue
try:
hvcon = self.server.get_connection(obj['p'])
except KeyError:
errs.error(obj['id'], 'hypervisor not connected')
else:
if delete_storage:
for disk in obj.get('disk', '').split():
pool = obj.get('disk%s_pool' % disk)
name = obj.get('disk%s_vol' % disk)
hvcon.proxy.vol_delete(pool, name)
hvcon.proxy.vm_undefine(obj['h'])
errs.success(obj['id'], 'vm undefined')
return errs.get_dict()
@listed
def passwd(self, query, password, method='ssha'):
""" Define a new password for selected users.
:param query: the query to select the objects to change
:param password: the password to set (None to remove password)
:param method: the hash method (sha, ssha, md5, smd5 or plain)
:return: a standard report output
"""
self.check('passwd', query)
objects = self.server.list(query, show=('a',))
errs = Reporter()
with self.conf:
for obj in objects:
if 'a' not in obj:
errs.error(obj['id'], 'not an account')
continue
self.conf.set_password(obj['a'], password, method)
errs.success(obj['id'], 'password updated')
return errs.get_dict()
@listed
def addaccount(self, login, role, password=None):
""" Create a new account with specified login.
:param login: the login of the new account
:param role: the role of the new account
:param password: the password of the new account (None = not set)
"""
self.check('addaccount')
if role in Client.roles:
self.conf.create_account(login, role, password)
else:
raise BadRoleError('%r is not a legal role.' % role)
@listed
def copyaccount(self, copy_login, login, password=None):
""" Create a new account with specified login.
:param copy_login: the login of the account to copy
:param login: the login of the new account
:param password: the password of the new account (default None)
"""
self.check('addaccount')
self.conf.copy_account(copy_login, login, password)
@listed
def addtag(self, query, tag_name, tag_value):
""" Add a tag to the accounts which match the specified query.
:param query: the query to select objects
:param tag_name: the name of the tag to add
:param tag_value: the value of the tag
"""
self.check('addtag', query)
if tag_name in self.server.RESERVED_TAGS:
raise ReservedTagError('Tag %r is read-only' % tag_name)
objects = self.server.list(query, show=('a',))
errs = Reporter()
with self.conf:
for obj in objects:
print obj
if 'a' not in obj:
errs.error(obj['id'], 'not an account')
continue
# Update the configuration for this account:
tags = self.conf.show(obj['a'])['tags']
if tag_name in tags:
errs.warn(obj['id'], 'tag already exists, changed from %s'
' to %s' % (tags[tag_name], tag_value))
# Update the object db (update the tag value):
dbobj = self.server.db.get(obj['id'])
dbobj[tag_name].set_value(tag_value)
else:
errs.success(obj['id'], 'tag created')
# Update the object db (create the tag):
dbobj = self.server.db.get(obj['id'])
dbobj.register(StaticTag(tag_name, tag_value), override=True)
self.conf.add_tag(obj['a'], tag_name, tag_value)
return errs.get_dict()
@listed
def deltag(self, query, tag_name):
""" Remove a tag of the selected accounts.
:param query: the query to select objects
:param tag_name: the name of the tag to remove
"""
self.check('deltag', query)
if tag_name in self.server.RESERVED_TAGS:
raise ReservedTagError('Tag %r is read-only' % tag_name)
objects = self.server.list(query, show=('a',))
errs = Reporter()
with self.conf:
for obj in objects:
if 'a' not in obj:
errs.error(obj['id'], 'not an account')
continue
tags = self.conf.show(obj['a'])['tags']
if tag_name in tags:
errs.success(obj['id'], 'tag deleted')
dbobj = self.server.db.get(obj['id'])
dbobj.unregister(tag_name, override=True)
else:
errs.warn(obj['id'], 'unknown tag')
self.server.conf.remove_tag(obj['a'], tag_name)
return errs.get_dict()
@listed
def tags(self, query):
""" Return all static tags attached to the selected accounts.
:param query: the query to select objects
"""
self.check('tags', query)
objects = self.server.list(query, show=('a',))
tags = []
for obj in objects:
o = {'id': obj['id']}
if 'a' in obj:
otags = self.server.conf.show(obj['a'])['tags']
otags.update({'id': obj['id']})
o.update(otags)
tags.append(o)
return {'objects': tags, 'order': ['id']}
@listed
def delaccount(self, query):
""" Delete the accounts selected by query.
:param query: the query to select objects
"""
self.check('delaccount', query)
objects = self.server.list(query, show=('a',))
errs = Reporter()
with self.server.conf:
for obj in objects:
if 'a' not in obj:
errs.error(obj['id'], 'not an account')
continue
try:
self.server.conf.remove_account(obj['a'])
except CCConf.UnknownAccount:
errs.error(obj['id'], 'unknown account')
else:
errs.success(obj['id'], 'account deleted')
self.server.jobs.create('kill', author=self.client.login,
account=obj['a'], gracetime=1)
return errs.get_dict()
@listed
def close(self, query):
""" Close selected account an account without deleting them.
:param query: the query to select objects
"""
self.check('close', query)
objects = self.server.list(query, show=('a',))
errs = Reporter()
with self.server.conf:
for obj in objects:
if 'a' not in obj:
errs.error(obj['id'], 'not an account')
continue
tags = self.server.conf.show(obj['a'])['tags']
if 'close' in tags:
errs.warn(obj['id'], 'account already closed')
continue
errs.success(obj['id'], 'closed')
self.server.conf.add_tag(obj['a'], 'close', 'yes')
self.server.jobs.create('kill', author=self.client.login,
account=obj['a'], gracetime=1)
return errs.get_dict()
@listed
def declose(self, query):
""" Re-open selected closed accounts.
:param query: the query to select objects
"""
self.check('declose', query)
objects = self.server.list(query, show=('a',))
errs = Reporter()
with self.server.conf:
for obj in objects:
if 'a' not in obj:
errs.error(obj['id'], 'not an account')
continue
tags = self.conf.show(obj['a'])['tags']
if 'close' in tags:
errs.success(obj['id'], 'account declosed')
else:
errs.warn(obj['id'], 'account not closed')
self.conf.remove_tag(obj['a'], 'close')
return errs.get_dict()
@listed
def kill(self, query):
""" Disconnect all connected accounts selected by query.
:param query: the query to select objects
"""
self.check('kill', query)
objects = self.server.list(query, show=set(('a',)))
errs = Reporter()
with self.server.conf:
for obj in objects:
if 'a' not in obj:
errs.error(obj['id'], 'not an account')
continue
try:
self.server.kill(obj['a'])
except NotConnectedAccountError:
errs.error(obj['id'], 'account is not connected')
else:
errs.success(obj['id'], 'account killed')
return errs.get_dict()
@listed
def rights(self, query):
""" Get the rights of selected accounts.
:param query: the query to select objects
"""
self.check('rights', query)
objects = self.server.list(query, show=set(('a',)))
rules = {}
for obj in objects:
if 'a' in obj:
rules[obj['a']] = self.server.conf.show(obj['a'])['rights']
else:
raise BadObjectError('All objects must have the "a" tag.')
return rules
@listed
def addright(self, query, tql, method=None, allow=True, index=None):
""" Add a right rule to the selected accounts.
:param query: the query to select objects
:param tql: the TQL of the right rule
:param method: the method of the right rule
:param allow: target = allow if True, else False
:param index: the index of the rule in list (can be negative to index
from the end, if the index is out of range, the rule is added to
the end.
"""
self.check('addright', query)
objects = self.server.list(query, show=set(('a',)))
errs = Reporter()
with self.server.conf:
for obj in objects:
if 'a' not in obj:
errs.error(obj['id'], 'not an account')
continue
try:
self.server.conf.add_right(obj['a'], tql, method,
allow, index)
except self.server.conf.UnknownAccount:
errs.error(obj['id'], 'unknown account')
else:
errs.success(obj['id'], 'right rule added')
return errs.get_dict()
@listed
def delright(self, query, index):
""" Remove a right rule from the selected objects.
:param query: the query to select objects
:param index: the index of the right rule to remove
"""
self.check('delright', query)
objects = self.server.list(query, show=set(('a',)))
errs = Reporter()
with self.server.conf:
for obj in objects:
if 'a' not in obj:
errs.error(obj['id'], 'not an account')
continue
try:
self.server.conf.remove_right(obj['a'], index)
except self.server.conf.UnknownAccount:
errs.error(obj['id'], 'unknown account')
except self.server.conf.OutOfRangeIndexError:
errs.error(obj['id'], 'index out of range')
else:
errs.success(obj['id'], 'right rule deleted')
return errs.get_dict()
@listed
def execute(self, query, command):
""" Execute command on matched objects (must be roles hv or host).
:param query: the tql query to select objects.
:param command: the command to execute on each object
:return: a dict where key is the id of a selected object, and the value
a tuple (errcode, message) where errcode is (success|error|warn) and
message an error message or the output of the command in case of
success.
"""
self.check('execute', query)
objects = self.server.list(query, show=('r',))
errs = Reporter()
for obj in objects:
if obj['r'] not in ('hv', 'host'):
errs.error(obj['id'], 'bad role')
continue
try:
objcon = self.server.get_connection(obj['id'])
except KeyError:
errs.error(obj['id'], 'node not connected')
else:
returned = objcon.connection.call('execute_command', command)
errs.success(obj['id'], 'command executed', output=returned)
return errs.get_dict()
@listed
def shutdown(self, query, reboot=True, gracefull=True):
""" Execute a shutdown on selected objects (must be roles hv or host).
:param query: the tql query to select objects.
:param reboot: reboot the host instead of just shut it off
:param gracefull: properly shutdown the host
:return: a dict where key is the id of a selected object, and the value
a tuple (errcode, message) where errcode is (success|error|warn) and
message an error message.
"""
self.check('execute', query)
objects = self.server.list(query, show=set(('r',)))
errs = Reporter()
for obj in objects:
if obj['r'] not in ('hv', 'host'):
errs.error(obj['id'], 'bad role')
continue
try:
objcon = self.server.get_connection(obj['id'])
except KeyError:
errs.error(obj['id'], 'node not connected')
else:
try:
objcon.connection.call('node_shutdown',
reboot, gracefull)
except RpcError as err:
errs.error(obj['id'], '%s (exc: %s)' % (err.message,
err.exception))
else:
errs.success(obj['id'], 'ok')
return errs.get_dict()
@listed
def jobs(self, query, show_done=True, show_running=True):
""" Return all jobs.
:param show_done: show done jobs
:param show_running: show running jobs
"""
if query:
raise NotImplementedError('Tql in jobs is not yet supported.')
props = ('id', 'author', 'created', 'ended',
'duration', 'done', 'title', 'status')
jobs = []
for job in self.server.jobs.iterjobs(show_done, show_running):
jobs.append(job.export(props))
return {'objects': jobs, 'order': props}
@listed
def cancel(self, jobid):
""" Cancel a job.
:param jobid: the id of the job to cancel.
"""
self.server.jobs.cancel(jobid)
@listed
def jobspurge(self):
""" Purge all done jobs from the job list.
"""
self.server.jobs.purge()
@listed
def electiontypes(self):
return Elector.ALGO_BY_TYPES
@listed
def election(self, query_vm, query_dest, mtype='cold', algo='fair', **kwargs):
""" Consult the server for the migration of specified vm on
an hypervisor pool.
:param query_vm: the tql query to select VMs to migrate
:param query_dest: the tql query to select destination hypervisors
candidates
:param mtype: type of migration
:param algo: algo used for distribution
"""
elector = Elector(self.server, query_vm, query_dest, self.client.login)
return elector.election(mtype, algo, **kwargs)
@listed
def migrate(self, migration_plan):
""" Launch the provided migration plan.
:param migration_plan: the plan of the migration.
:return: a standard error report
"""
errs = Reporter()
for migration in migration_plan:
# Check if the migration type is know:
if migration['type'] in MIGRATION_TYPES:
mtype = MIGRATION_TYPES[migration['type']]
else:
errmsg = '%r unknown migration type' % migration['type']
errs.error(migration['sid'], errmsg)
continue
self.server.objects.update(ids=(migration['sid'],))
vm = self.server.objects.get_by_id(migration['sid'])
# Construct the migration properties:
migration_properties = {
'author': self.client.login,
'vm_name': vm['h'],
'hv_source': vm['p'],
'hv_dest': migration['did']
}
# Create the job:
self.server.jobs.create(mtype, **migration_properties)
errs.success(migration['sid'], 'migration launched')
return errs.get_dict()
@listed
def clone(self, tql_vm, tql_dest, name):
""" Create and launch a clone job.
:param tql_vm: a tql matching one vm object (the cloned vm)
:param tql_dest: a tql matching one hypervisor object (the destination
hypervisor)
:param name: the new name of the VM
"""
vm = self.server.list(tql_vm, show=('r', 'h', 'p'))
if len(vm) != 1:
raise CloneError('VM Tql must select ONE vm')
elif vm[0]['r'] != 'vm':
raise CloneError('Destination Tql must select a vm')
else:
vm = vm[0]
dest = self.server.list(tql_dest, show=('r',))
if len(dest) != 1:
raise CloneError('Destination Tql must select ONE hypervisor')
elif dest[0]['r'] != 'hv':
raise CloneError('Destination Tql must select an hypervisor')
else:
dest = dest[0]
self.server.jobs.create('clone', **{'vm_name': vm['h'],
'new_vm_name': name,
'hv_source': vm['p'],
'hv_dest': dest['id'],
'author': self.client.login})
class CliClient(Client):
""" A cli client connected to the cc-server.
"""
ROLE = 'cli'
RPC_HANDLER = CliHandler
Client.register_client_class(CliClient)