class OprStart(OperationBase):
def __init__(self, args=None, topology=None, demo=False):
super(OprStart, self).__init__(args, topology, demo=demo)
self.act = Action(ans=self.ans, topo=self.topology)
self.demo = demo
def _process(self, component=None, pattern=None, node=None, role=None):
if node:
term.notice('Start specified node in cluster.')
elif role:
term.notice('Start specified role in cluster.')
else:
term.notice('Start TiDB cluster.')
_topology = self.topology.role_node(roles=role, nodes=node)
if not self.demo:
term.info('Check ssh connection.')
self.act.check_ssh_connection()
for service in self.topology.service_group:
component, pattern = self.check_exist(service, config=_topology)
if not component and not pattern:
continue
if not node:
term.normal('Starting {}.'.format(component))
self.act.start_component(component, pattern)
else:
_uuid = [x['uuid'] for x in _topology[pattern]]
term.normal('Starting {}, node list: {}.'.format(
component, ','.join(_uuid)))
self.act.start_component(component, pattern, ','.join(_uuid))
def _post(self, component=None, pattern=None, node=None, role=None):
term.notice('Finished start.')
class OprScaleIn(OperationBase):
def __init__(self, args=None, topology=None, node=None):
if not node:
msg = 'Node ID not specified.'
term.error(msg)
raise exceptions.TiOPSConfigError(msg)
self._new_topo, self._diff = topology.remove(node)
super(OprScaleIn, self).__init__(args, topology)
self.act = Action(ans=self.ans, topo=self.topology)
def _prepare(self, component=None, pattern=None, node=None, role=None):
term.notice('Begin delete node for TiDB cluster.')
self._cluster = modules.ClusterAPI(topology=self.topology)
self._pd_status = self._cluster.status()
self._tikv_stores = self._cluster.tikv_stores()
def _process(self, component=None, pattern=None, node=None, role=None):
_unhealth_node = []
for _pd_node in self._cluster.status():
if not _pd_node['health']:
_unhealth_node.append(_pd_node['name'])
msg = 'Some pd node is unhealthy, maybe server stoppd or network unreachable, unhealthy node list: {}'.format(
','.join(_unhealth_node))
term.fatal(msg)
raise exceptions.TiOPSRuntimeError(msg, operation='scaleIn')
_current_pd_num = len(self._pd_status)
_current_tikv_num = len(self._tikv_stores)
if 'pd_servers' in self._diff and len(
self._diff['pd_servers']) == _current_pd_num:
term.fatal('Can not delete all pd node.')
exit(1)
if 'tikv_servers' in self._diff and len(
self._diff['tikv_servers']) == _current_tikv_num:
term.fatal('Can not delete all tikv node.')
exit(1)
term.info('Check ssh connection.')
self.act.check_ssh_connection()
for service in self.topology.service_group[::-1]:
component, pattern = self.check_exist(service, self._diff)
if not component and not pattern:
continue
uuid = [x['uuid'] for x in self._diff[pattern]]
term.normal('Delete {}, node list: {}'.format(
component, ','.join(uuid)))
for _uuid in uuid:
self.__delete_component(self._diff, component, pattern, _uuid)
if component not in ['tikv', 'pump', 'drainer']:
self.act.stop_component(component=component,
pattern=pattern,
node=_uuid)
self.act.destroy_component(component=component,
pattern=pattern,
node=_uuid)
if component != 'blackbox_exporter':
self.topology.replace(self.topology.remove(_uuid)[0])
def _post(self, component=None, pattern=None, node=None, role=None):
ans = ansibleapi.ANSRunner(user=self.topology.user,
topology=self.topology(),
tiargs=self._args)
act = Action(ans=ans, topo=self.topology)
if 'pd_servers' in self._diff:
act.deploy_component(component='pd', pattern='pd_servers')
act.deploy_component(component='tikv', pattern='tikv_servers')
act.deploy_component(component='tidb', pattern='tidb_servers')
act.deploy_component(component='pump', pattern='pump_servers')
act.deploy_component(component='drainer',
pattern='drainer_servers')
# self.deploy.deploy_component(component='prometheus', pattern='monitoring_server', ans=ans)
# self.reload.do(component='prometheus', pattern='monitoring_server')
term.notice('Finished scaling in.')
def __delete_component(self,
config=None,
component=None,
pattern=None,
uuid=None):
if component == 'pd':
try:
self._cluster.del_pd(uuid)
except exceptions.TiOPSException as e:
term.fatal(
'Unable to delete PD node from cluster: {}'.format(e))
exit(1)
if component == 'tikv':
_tikv_info = ''
for _tikv_node in config[pattern]:
if _tikv_node['uuid'] != uuid:
continue
if _tikv_node['offline']:
return
_tikv_info = _tikv_node
for ctikv in self._tikv_stores['stores']:
# check if node in cluster
if '{}:{}'.format(
_tikv_info['ip'],
_tikv_info['port']) == ctikv['store']['address']:
_store_id = ctikv['store']['id']
# delete store through api
try:
self._cluster.del_store(_store_id)
except exceptions.TiOPSException as e:
term.fatal('Unable to delete store: {}'.format(e))
exit(1)
if component == 'drainer':
_binlog = modules.BinlogAPI(topology=self.topology)
_binlog.delete_drainer(node_id=uuid)
if component == 'pump':
_binlog = modules.BinlogAPI(topology=self.topology)
_binlog.delete_pump(node_id=uuid)
class OprScaleOut(OperationBase):
def __init__(self, args=None, topology=None, new_srvs=None):
if os.path.exists(topology.topology_file):
term.warn(
'Check TiDB cluster {} status, it may take a few minutes.'.
format(topology.cluster_name))
self.check_tombstone(topology, args)
self._new_topo, self._diff = topology.add(new_srvs)
topology.replace(self._new_topo, write=False)
super(OprScaleOut, self).__init__(args, topology, action='deploy')
self.act = Action(ans=self.ans, topo=self.topology)
def _prepare(self, component=None, pattern=None, node=None, role=None):
if not self._diff:
msg = 'No new nodes to scale out.'
term.error(msg)
raise exceptions.TiOPSConfigError(msg)
term.notice('Begin add node for TiDB cluster.')
# copy template
utils.create_dir(self.topology.cache_template_dir)
utils.copy_template(source=os.path.join(self.topology.titemplate_dir),
target=os.path.join(
self.topology.cache_template_dir))
# update scripts when scale-out.
for service in ['pd', 'tikv', 'tidb', 'pump', 'drainer']:
if '{}_servers'.format(service) in self._diff:
template_path = os.path.join(
self.topology.cache_template_dir,
'scripts/run_{}.sh.j2'.format(service))
_original, new_template = utils.script_template(
path=self.topology.cluster_dir,
template=template_path,
service=service)
utils.write_template(template_path, new_template)
def _process(self, component=None, pattern=None, node=None, role=None):
term.info('Check ssh connection.')
self.act.check_ssh_connection()
self.act.edit_file()
try:
term.info('Create directory in all add nodes.')
for service in self.topology.service_group:
component, pattern = self.check_exist(service, self._diff)
if not component and not pattern:
continue
uuid = [x['uuid'] for x in self._diff[pattern]]
self.act.create_directory(component=component,
pattern=pattern,
node=','.join(uuid))
# check machine cpu / memory / disk
self.act.check_machine_config(self._diff)
# start run scale-out
for service in self.topology.service_group:
component, pattern = self.check_exist(service, self._diff)
if not component and not pattern:
continue
uuid = [x['uuid'] for x in self._diff[pattern]]
term.normal('Add {}, node list: {}.'.format(
component, ','.join(uuid)))
_template_dir = self.topology.cache_template_dir
self.act.deploy_component(component=component,
pattern=pattern,
node=','.join(uuid),
template_dir=_template_dir)
self.act.deploy_firewall(component=component,
pattern=pattern,
node=','.join(uuid))
self.act.start_component(component=component,
pattern=pattern,
node=','.join(uuid))
finally:
os.popen('rm -rf {}'.format(self.topology.cache_template_dir))
def _post(self, component=None, pattern=None, node=None, role=None):
# if 'pd_servers' in self._diff:
# reload_pd = True
# else:
# reload_pd = False
self.topology.replace(self._new_topo)
term.info('Update configuration.')
ans = ansibleapi.ANSRunner(user=self.topology.user,
topology=self.topology._topology(
self._new_topo),
tiargs=self._args)
act = Action(ans=ans, topo=self.topology)
if 'pd_servers' in self._diff:
act.deploy_component(component='pd', pattern='pd_servers')
act.deploy_component(component='tikv', pattern='tikv_servers')
act.deploy_component(component='tidb', pattern='tidb_servers')
act.deploy_component(component='pump', pattern='pump_servers')
act.deploy_component(component='drainer',
pattern='drainer_servers')
act.deploy_component(component='prometheus',
pattern='monitoring_server')
act.stop_component(component='prometheus', pattern='monitoring_server')
act.start_component(component='prometheus',
pattern='monitoring_server')
term.notice('Finished scaling out.')
class OprExec(OperationBase):
def __init__(self, args=None, topology=None):
super(OprExec, self).__init__(args, topology)
self.act = Action(ans=self.ans, topo=self.topology)
self._result = {
'failed': {},
'success': {},
'unreachable': {},
}
def _prepare(self, component=None, pattern=None, node=None, role=None):
try:
self.cmd = ' '.join(self._args.cmd)
except AttributeError:
raise exceptions.TiOPSArgumentError(
'No command specified, do nothing.')
term.notice('Run raw shell command on {} cluster.'.format(
self.topology.cluster_name))
term.normal('{}'.format(self.cmd))
def _process(self, component=None, pattern=None, node=None, role=None):
if node:
term.notice('Running command on specified node in cluster.')
elif role:
term.notice('Running command on specified role in cluster.')
else:
term.notice('Running command on all node in cluster.')
_topology = self.topology.role_node(roles=role, nodes=node)
try:
_sudo = self._args.root
except AttributeError:
_sudo = False
term.info('Check ssh connection.')
self.act.check_ssh_connection()
for service in self.topology.service_group:
component, pattern = self.check_exist(service, config=_topology)
if not component and not pattern:
continue
if not node:
term.info('Running command on {}.'.format(component))
self.__run(pattern=pattern, sudo=_sudo, cmd=self.cmd)
else:
_uuid = [x['uuid'] for x in _topology[pattern]]
term.info('Running command on {}, node list: {}.'.format(
component, ','.join(_uuid)))
self.__run(pattern=pattern,
node=','.join(_uuid),
sudo=_sudo,
cmd=self.cmd)
def _post(self, component=None, pattern=None, node=None, role=None):
term.notice('Finished reload config for {} cluster.'.format(
self.topology.version))
print(term.bold_cyan('Success:'))
for host, out in self._result['success'].items():
_output = 'stdout: {}'.format(out['stdout'])
if len(out['stderr']) > 0:
_output += '\nstderr: {}'.format(out['stderr'])
print(term.plain_green('{}:'.format(host)))
print(term.plain(_output))
if len(self._result['unreachable']) > 0:
print(term.bold_yellow('Unreachable:'))
for host, out in self._result['unreachable'].items():
_output = 'stdout: {}'.format(out['stdout'])
if len(out['stderr']) > 0:
_output += '\nstderr: {}'.format(out['stderr'])
print(term.plain_yellow('{}:'.format(host)))
print(term.plain(_output))
if len(self._result['failed']) > 0:
print(term.bold_red('Failed:'))
for host, out in self._result['failed'].items():
_output = 'stdout: {}'.format(out['stdout'])
if len(out['stderr']) > 0:
_output += '\nstderr: {}'.format(out['stderr'])
print(term.plain_red('{}:'.format(host)))
print(term.plain(_output))
def __run(self, pattern=None, node=None, sudo=False, cmd=None):
try:
_result = self.act.run_shell(pattern=pattern,
node=node,
sudo=sudo,
cmd=cmd)
except exceptions.TiOPSRuntimeError as e:
term.error('Error execute command: {}'.format(e))
_result = e.ctx
for host, out in _result['success'].items():
if not host in self._result['success'].keys():
self._result['success'][host] = out
for host, out in _result['failed'].items():
if not host in self._result['failed'].keys():
self._result['failed'][host] = out
for host, out in _result['unreachable'].items():
if not host in self._result['unreachable'].keys():
self._result['unreachable'][host] = out
class OprDeploy(OperationBase):
def __init__(self, args=None, topology=None, demo=False):
super(OprDeploy, self).__init__(args, topology, demo=demo)
self.act = Action(ans=self.ans, topo=self.topology)
self.demo = demo
def _check_config(self):
_servers = [
{
'pd': 'pd_servers'
},
{
'tikv': 'tikv_servers'
},
{
'tidb': 'tidb_servers'
},
]
for _service in _servers:
_component, _pattern = self.check_exist(_service,
config=self.topology())
if not _component and not _pattern:
continue
term.normal('Check {} configuration.'.format(_component))
self.act.configCheck(component=_component,
pattern=_pattern,
node=self.topology()[_pattern][0]['uuid'])
def _prepare(self, component=None, pattern=None, node=None, role=None):
if self.topology.version and self._args.tidb_version:
new_ver = self._args.tidb_version.lstrip('v')
curr_ver = self.topology.version.lstrip('v')
_cmp = semver.compare(curr_ver, new_ver)
if _cmp > 0:
raise exceptions.TiOPSArgumentError(
'Running version is {}, can\'t downgrade.'.format(
curr_ver))
term.notice('Begin installing TiDB cluster.')
# download packages
term.info(
'Downloading TiDB related binary, it may take a few minutes.')
try:
_local = self._args.local_pkg
except AttributeError:
_local = None
self.act.download(local_pkg=_local)
if not self.demo:
# edit config
self.act.edit_file()
term.info('Check ssh connection.')
self.act.check_ssh_connection()
if self._args.enable_check_config:
self._check_config()
def _process(self, component=None, pattern=None, node=None, role=None):
# creart directory
term.info('Create directory in all nodes.')
for service in self.topology.service_group:
component, pattern = self.check_exist(service,
config=self.topology())
if not component and not pattern:
continue
self.act.create_directory(component=component, pattern=pattern)
if not self.demo:
self.act.check_machine_config()
# start run deploy
if self.demo:
term.warn(
'FirewallD is being disabled on deployment machines in quick deploy mode.'
)
for service in self.topology.service_group:
component, pattern = self.check_exist(service,
config=self.topology())
if not component and not pattern:
continue
term.normal('Deploy {}.'.format(component))
self.act.deploy_component(component=component, pattern=pattern)
self.act.deploy_firewall(component=component, pattern=pattern)
if not self.demo:
self.act.deploy_tool()
def _post(self, component=None, pattern=None, node=None, role=None):
self.topology.set_meta()
self.topology._save_topology()
if self.demo:
term.notice('Finished deploying TiDB cluster {} ({}).'.format(
self.topology.cluster_name, self.topology.version))
else:
term.notice(
'Finished deploying TiDB cluster {} ({}), don\'t forget to start it.'
.format(self.topology.cluster_name, self.topology.version))
class OprReload(OperationBase):
def __init__(self, args=None, topology=None):
super(OprReload, self).__init__(args, topology)
self.act = Action(ans=self.ans, topo=self.topology)
def _process(self, component=None, pattern=None, node=None, role=None):
if node:
term.notice('Reload specified node in cluster.')
elif role:
term.notice('Reload specified role in cluster.')
else:
term.notice('Reload TiDB cluster.')
_topology = self.topology.role_node(roles=role, nodes=node)
_cluster = modules.ClusterAPI(topology=self.topology)
_unhealth_node = []
for _pd_node in _cluster.status():
if not _pd_node['health']:
_unhealth_node.append(_pd_node['name'])
msg = 'Some pd node is unhealthy, maybe server stoppd or network unreachable, unhealthy node list: {}'.format(
','.join(_unhealth_node))
term.fatal(msg)
raise exceptions.TiOPSRuntimeError(msg, operation='reload')
term.info('Check ssh connection.')
self.act.check_ssh_connection()
# every time should only contain one item
for service in self.topology.service_group:
component, pattern = self.check_exist(service=service,
config=_topology)
if not component and not pattern:
continue
# upgrade pd server, upgrade leader node finally
if component == 'pd':
_pd_list = []
for _node in _topology[pattern]:
if _node['uuid'] == _cluster.pd_leader():
_leader = _node
else:
_pd_list.append(_node)
_pd_list.append(_leader)
for _node in _pd_list:
_uuid = _node['uuid']
_host = _node['ip']
term.normal('Reload {}, node id: {}.'.format(
component, _uuid))
if _uuid == _cluster.pd_leader():
_cluster.evict_pd_leader(uuid=_uuid)
self.act.deploy_component(component=component,
pattern=pattern,
node=_uuid)
self.act.stop_component(component=component,
pattern=pattern,
node=_uuid)
self.act.start_component(component=component,
pattern=pattern,
node=_uuid)
continue
if pattern in [
'monitored_servers', 'monitoring_server', 'grafana_server',
'alertmanager_server'
]:
if not node:
term.normal('Reload {}.'.format(component))
self.act.deploy_component(component=component,
pattern=pattern)
self.act.stop_component(component=component,
pattern=pattern)
self.act.start_component(component=component,
pattern=pattern)
else:
_uuid = [x['uuid'] for x in _topology[pattern]]
term.normal('Reload {}, node list: {}.'.format(
component, ','.join(_uuid)))
self.act.deploy_component(component=component,
pattern=pattern,
node=','.join(_uuid))
self.act.stop_component(component=component,
pattern=pattern,
node=','.join(_uuid))
self.act.start_component(component=component,
pattern=pattern,
node=','.join(_uuid))
continue
for _node in _topology[pattern]:
_uuid = _node['uuid']
_host = _node['ip']
term.normal('Reload {}, node id: {}.'.format(component, _uuid))
if pattern == 'tikv_servers':
_port = _node['port']
_cluster.evict_store_leaders(host=_host, port=_port)
self.act.deploy_component(component=component,
pattern=pattern,
node=_uuid)
self.act.stop_component(component=component,
pattern=pattern,
node=_uuid)
self.act.start_component(component=component,
pattern=pattern,
node=_uuid)
if pattern == 'tikv_servers':
_cluster.remove_evict(host=_host, port=_port)
def _post(self, component=None, pattern=None, node=None, role=None):
term.notice('Finished reload config for {} cluster.'.format(
self.topology.version))
class OprUpgrade(OprDeploy):
def __init__(self, args=None, topology=None):
super(OprUpgrade, self).__init__(args, topology)
self.act = Action(ans=self.ans, topo=self.topology)
try:
self.arg_ver = args.tidb_version
except AttributeError:
raise exceptions.TiOPSConfigError(
'--tidb-version is not set when upgrade, abort.')
try:
self.force = args.force
except AttributeError:
self.force = False
# check versions, it update version related variables in memory, but not writting them to disk
def __check_version(self):
new_ver = self.arg_ver.lstrip('v')
curr_ver = self.topology.version.lstrip('v')
_cmp = semver.compare(curr_ver, new_ver)
if _cmp == 0:
raise exceptions.TiOPSArgumentError(
'Already running version {}.'.format(curr_ver))
elif _cmp > 0:
raise exceptions.TiOPSRuntimeError(
'Downgrade is not supported, keep running {}.'.format(curr_ver), operation='upgrade')
# update version and related variables
self.old_ver = curr_ver
self.new_ver = new_ver
self.topology.version = 'v{}'.format(new_ver)
self.topology.tiversion_dir = os.path.join(
self.topology.tidown_dir, '{}'.format(self.topology.version))
self.topology.resource_dir = utils.profile_path(
'downloads', '{}/resources'.format(self.topology.version))
self.topology.dashboard_dir = utils.profile_path(
'downloads', '{}/dashboards'.format(self.topology.version))
self.topology.package_dir = utils.profile_path(
'downloads', '{}/packages'.format(self.topology.version))
self.topology.config_dir = utils.profile_path(
'downloads', '{}/configs'.format(self.topology.version))
# Check if the configuration of the tidb component is reasonable
def _check_config(self, topology=None):
if not topology:
topology = self.topology()
_servers = [
{'pd': 'pd_servers'},
{'tikv': 'tikv_servers'},
{'tidb': 'tidb_servers'},
]
for _service in _servers:
_component, _pattern = self.check_exist(
_service, config=topology)
if not _component and not _pattern:
continue
term.info('Check {} configuration.'.format(_component))
self.act.configCheck(component=_component, pattern=_pattern, node=topology[_pattern][0]['uuid'])
# TODO: check and merge configs
def __check_config(self):
pass
def _prepare(self, component=None, pattern=None, node=None, role=None):
# check versions before processing
self.__check_version()
term.notice('Upgrading from v{} to v{}.'.format(
self.old_ver, self.new_ver))
# download packages for new version
term.info('Downloading TiDB related binary, it may take a few minutes.')
try:
_local = self._args.local_pkg
except AttributeError:
_local = None
self.act.download(version=self.new_ver, local_pkg=_local)
# check configs
self.__check_config()
def _process(self, component=None, pattern=None, node=None, role=None):
if node:
term.notice('Upgrade specified node in cluster.')
elif role:
term.notice('Upgrade specified role in cluster.')
else:
term.notice('Upgrade TiDB cluster.')
_topology = self.topology.role_node(roles=role, nodes=node)
if self._args.enable_check_config:
self._check_config()
# for service in ['pd', 'tikv', 'pump', 'tidb']:
# grp = [x for x in self.topology.service_group if service in x.keys()]
_cluster = modules.ClusterAPI(topology=self.topology)
_unhealth_node = []
for _pd_node in _cluster.status():
if not _pd_node['health']:
_unhealth_node.append(_pd_node['name'])
msg = 'Some pd node is unhealthy, maybe server stoppd or network unreachable, unhealthy node list: {}'.format(
','.join(_unhealth_node))
term.fatal(msg)
raise exceptions.TiOPSRuntimeError(msg, operation='upgrade')
term.info('Check ssh connection.')
self.act.check_ssh_connection()
if self.force:
for service in self.topology.service_group:
component, pattern = self.check_exist(
service=service, config=_topology)
if not component and not pattern:
continue
if pattern in ['monitored_servers', 'monitoring_server', 'grafana_server', 'alertmanager_server']:
term.normal('Upgrade {}.'.format(component))
self.act.deploy_component(
component=component, pattern=pattern)
self.act.stop_component(
component=component, pattern=pattern)
self.act.start_component(
component=component, pattern=pattern)
continue
for _node in _topology[pattern]:
_uuid = _node['uuid']
term.normal('Upgrade {}, node id: {}.'.format(
component, _uuid))
self.act.deploy_component(
component=component, pattern=pattern, node=_uuid)
self.act.stop_component(
component=component, pattern=pattern, node=_uuid)
self.act.start_component(
component=component, pattern=pattern, node=_uuid)
return
# every time should only contain one item
for service in self.topology.service_group:
component, pattern = self.check_exist(
service=service, config=_topology)
if not component and not pattern:
continue
# upgrade pd server, upgrade leader node finally
if component == 'pd':
_pd_list = []
for _node in _topology[pattern]:
if _node['uuid'] == _cluster.pd_leader():
_leader = _node
else:
_pd_list.append(_node)
_pd_list.append(_leader)
for _node in _pd_list:
_uuid = _node['uuid']
_host = _node['ip']
term.normal('Upgrade {}, node id: {}.'.format(
component, _uuid))
if _uuid == _cluster.pd_leader():
_cluster.evict_pd_leader(uuid=_uuid)
self.act.deploy_component(
component=component, pattern=pattern, node=_uuid)
self.act.stop_component(
component=component, pattern=pattern, node=_uuid)
self.act.start_component(
component=component, pattern=pattern, node=_uuid)
continue
if pattern in ['monitored_servers', 'monitoring_server', 'grafana_server', 'alertmanager_server']:
term.normal('Upgrade {}.'.format(component))
self.act.deploy_component(component=component, pattern=pattern)
self.act.stop_component(component=component, pattern=pattern)
self.act.start_component(component=component, pattern=pattern)
continue
for _node in _topology[pattern]:
_uuid = _node['uuid']
_host = _node['ip']
term.normal('Upgrade {}, node id: {}.'.format(component, _uuid))
if pattern == 'tikv_servers':
_port = _node['port']
_cluster.evict_store_leaders(host=_host, port=_port)
self.act.deploy_component(
component=component, pattern=pattern, node=_uuid)
self.act.stop_component(
component=component, pattern=pattern, node=_uuid)
self.act.start_component(
component=component, pattern=pattern, node=_uuid)
if pattern == 'tikv_servers':
_cluster.remove_evict(host=_host, port=_port)
def _post(self, component=None, pattern=None, node=None, role=None):
self.topology.set_meta(version=self.new_ver)
term.notice('Upgraded to {}.'.format(self.topology.version))
class OprDestroy(OperationBase):
def __init__(self, args=None, topology=None):
super(OprDestroy, self).__init__(args, topology)
self.act = Action(ans=self.ans, topo=self.topology)
def _prepare(self, component=None, pattern=None, node=None, role=None):
term.warn('The TiDB cluster {} ({}) is going to be destroyed.'.format(
self.topology.cluster_name, self.topology.version))
rm_promt = 'This operation will ' + term.warn_red('remove') \
+ ' the TiDB cluster ' + term.highlight_red(self.topology.cluster_name) \
+ '. It can NOT be undone. ' + term.yes_no() + ':'
notice = term.input(rm_promt)
if notice.lower() not in ['y', 'yes']:
term.notice('Terminate the destroy operation.')
raise exceptions.TiOPSRuntimeError('Operation cancelled by user.')
def _process(self, component=None, pattern=None, node=None, role=None):
term.info('Check ssh connection.')
self.act.check_ssh_connection()
term.info('Stopping TiDB cluster.')
for service in self.topology.service_group[::-1]:
component, pattern = self.check_exist(service,
config=self.topology())
if not component and not pattern:
continue
try:
self.act.stop_component(component=component,
pattern=pattern,
node=node)
except exceptions.TiOPSWarning as e:
term.debug(str(e))
pass
for service in self.topology.service_group[::-1]:
component, pattern = self.check_exist(service,
config=self.topology())
if not component and not pattern:
continue
term.normal('{} is being destroyed.'.format(component))
try:
self.act.destroy_component(component=component,
pattern=pattern,
node=node)
except exceptions.TiOPSWarning as e:
term.debug(str(e))
pass
# remove deploy dir
self.ans.run_model('shell',
'rm -rf {{ full_deploy_dir | cluster_dir }}',
become=True,
group='*')
self.ans.run_model('shell',
'rm -rf {{ full_data_dir | cluster_dir }}',
become=True,
group='*')
def _post(self, component=None, pattern=None, node=None, role=None):
try:
utils.remove_dir(utils.profile_path(self.topology.cluster_dir))
except Exception as e:
logging.warning(e)
term.notice('TiDB cluster destroyed.')