def __init__(self, config_parser, **kwargs):
BasicWebserversManager.__init__(self, config_parser)
if kwargs['reset_config']:
self._create_initial_configuration()
self._register_scalaris(kwargs['scalaris'])
if ProvisioningManager is None:
self.logger.info('Provisioning Manager can not be initialized')
self.scaler = None
else:
try:
self.scaler = ProvisioningManager(config_parser)
except Exception as ex:
self.logger.exception(
'Failed to initialize the Provisioning Manager %s' %
str(ex))
def __init__(self, config_parser, **kwargs):
BasicWebserversManager.__init__(self, config_parser)
if kwargs['reset_config']:
self._create_initial_configuration()
self._register_scalaris(kwargs['scalaris'])
if ProvisioningManager is None:
self.logger.info('Provisioning Manager can not be initialized')
self.scaler = None
else:
try:
self.scaler = ProvisioningManager(config_parser)
except Exception as ex:
self.logger.exception('Failed to initialize the Provisioning Manager %s' % str(ex))
class PHPManager(BasicWebserversManager):
def __init__(self, config_parser, **kwargs):
BasicWebserversManager.__init__(self, config_parser)
if kwargs['reset_config']:
self._create_initial_configuration()
self._register_scalaris(kwargs['scalaris'])
if ProvisioningManager is None:
self.logger.info('Provisioning Manager can not be initialized')
self.scaler = None
else:
try:
self.scaler = ProvisioningManager(config_parser)
except Exception as ex:
self.logger.exception(
'Failed to initialize the Provisioning Manager %s' %
str(ex))
def _update_code(self, config, nodes):
for serviceNode in nodes:
# Push the current code version via GIT if necessary
if config.codeVersions[config.currentCodeVersion].type == 'git':
_, err = git.git_push(git.DEFAULT_CODE_REPO, serviceNode.ip)
if err:
self.logger.debug('git-push to %s: %s' %
(serviceNode.ip, err))
try:
client.updatePHPCode(
serviceNode.ip, 5555, config.currentCodeVersion,
config.codeVersions[config.currentCodeVersion].type,
os.path.join(self.code_repo, config.currentCodeVersion))
except client.AgentException:
self.logger.exception('Failed to update code at node %s' %
str(serviceNode))
self._state_set(self.S_ERROR,
msg='Failed to update code at node %s' %
str(serviceNode))
raise
def _start_proxy(self, config, nodes):
kwargs = {
'web_list': config.getWebTuples(),
'fpm_list': config.getBackendTuples(),
'cdn': config.cdn,
}
for proxyNode in nodes:
try:
if config.currentCodeVersion != None:
client.createHttpProxy(proxyNode.ip, 5555,
config.proxy_config.port,
config.currentCodeVersion, **kwargs)
except client.AgentException:
self.logger.exception('Failed to start proxy at node %s' %
str(proxyNode))
self._state_set(self.S_ERROR,
msg='Failed to start proxy at node %s' %
str(proxyNode))
raise
def _update_proxy(self, config, nodes):
kwargs = {
'web_list': config.getWebTuples(),
'fpm_list': config.getBackendTuples(),
'cdn': config.cdn
}
for proxyNode in nodes:
try:
if config.currentCodeVersion != None:
client.updateHttpProxy(proxyNode.ip, 5555,
config.proxy_config.port,
config.currentCodeVersion, **kwargs)
except client.AgentException:
self.logger.exception('Failed to update proxy at node %s' %
str(proxyNode))
self._state_set(self.S_ERROR,
msg='Failed to update proxy at node %s' %
str(proxyNode))
raise
def _start_backend(self, config, nodes):
for serviceNode in nodes:
try:
client.createPHP(serviceNode.ip, 5555,
config.backend_config.port,
config.backend_config.scalaris,
config.backend_config.php_conf.conf)
except client.AgentException:
self.logger.exception('Failed to start php at node %s' %
str(serviceNode))
self._state_set(self.S_ERROR,
msg='Failed to start php at node %s' %
str(serviceNode))
raise
def _update_backend(self, config, nodes):
for serviceNode in nodes:
try:
client.updatePHP(serviceNode.ip, 5555,
config.backend_config.port,
config.backend_config.scalaris,
config.backend_config.php_conf.conf)
except client.AgentException:
self.logger.exception('Failed to update php at node %s' %
str(serviceNode))
self._state_set(self.S_ERROR,
msg='Failed to update php at node %s' %
str(serviceNode))
raise
def _stop_backend(self, config, nodes):
for serviceNode in nodes:
try:
client.stopPHP(serviceNode.ip, 5555)
except client.AgentException:
self.logger.exception('Failed to stop php at node %s' %
str(serviceNode))
self._state_set(self.S_ERROR,
msg='Failed to stop php at node %s' %
str(serviceNode))
raise
@expose('GET')
def get_service_info(self, kwargs):
if len(kwargs) != 0:
return HttpErrorResponse(
ManagerException(ManagerException.E_ARGS_UNEXPECTED,
kwargs.keys()).message)
return HttpJsonResponse({'state': self._state_get(), 'type': 'PHP'})
@expose('GET')
def get_configuration(self, kwargs):
if len(kwargs) != 0:
return HttpErrorResponse(
ManagerException(ManagerException.E_ARGS_UNEXPECTED,
kwargs.keys()).message)
config = self._configuration_get()
phpconf = {}
for key in config.backend_config.php_conf.defaults:
if key in config.backend_config.php_conf.conf:
phpconf[key] = config.backend_config.php_conf.conf[key]
else:
phpconf[key] = config.backend_config.php_conf.defaults[key]
return HttpJsonResponse({
'codeVersionId': config.currentCodeVersion,
'phpconf': phpconf,
'cdn': config.cdn,
'autoscaling': config.autoscaling
})
@expose('POST')
def on_autoscaling(self, kwargs):
self.logger.info('on_autoscaling entering')
if not self.scaler:
return HttpErrorResponse(
'Provisioning Manager has not been initialized')
try:
self.autoscaling_threads = ThreadPool(processes=1)
if isinstance(int(kwargs['cool_down']), int) and isinstance(
int(kwargs['response_time']), int) and kwargs['strategy']:
self.autoscaling_threads.apply_async(
self.scaler.do_provisioning,
(int(kwargs.pop('response_time')),
int(kwargs.pop('cool_down')), kwargs.pop('strategy')))
#self.logger.info('on_autoscaling passed %s' % str( int(kwargs.pop('response_time')) ) )
config = self._configuration_get()
config.autoscaling = True
self._configuration_set(config)
return HttpJsonResponse({'autoscaling': config.autoscaling})
except Exception as ex:
self.logger.critical(
'Error when trying to start the autoscaling mechanism ')
return HttpErrorResponse(str(ex))
@expose('POST')
def off_autoscaling(self, kwargs):
self.logger.info('off_autoscaling entering')
if not self.scaler:
return HttpErrorResponse(
'Provisioning Manager has not been initialized')
try:
self.autoscaling_threads.terminate()
self.scaler.stop_provisioning()
config = self._configuration_get()
config.autoscaling = False
self._configuration_set(config)
self.logger.info('off_autoscaling done.')
return HttpJsonResponse({'autoscaling': config.autoscaling})
except Exception as ex:
self.logger.critical(
'Error when trying to stop the autoscaling mechanism ')
return HttpErrorResponse(str(ex))
@expose('POST')
def update_php_configuration(self, kwargs):
codeVersionId = None
if 'codeVersionId' in kwargs:
codeVersionId = kwargs.pop('codeVersionId')
config = self._configuration_get()
phpconf = {}
if 'phpconf' in kwargs:
phpconf = kwargs.pop('phpconf')
for key in phpconf.keys():
if key not in config.backend_config.php_conf.defaults:
return HttpErrorResponse(
ManagerException(ManagerException.E_ARGS_UNEXPECTED,
'phpconf attribute "%s"' %
(str(key))).message)
if not re.match(config.backend_config.php_conf.format[key],
phpconf[key]):
return HttpErrorResponse(
ManagerException(
ManagerException.E_ARGS_INVALID).message)
if len(kwargs) != 0:
return HttpErrorResponse(
ManagerException(ManagerException.E_ARGS_UNEXPECTED,
kwargs.keys()).message)
if codeVersionId == None and not phpconf:
return HttpErrorResponse(
ManagerException(
ManagerException.E_ARGS_MISSING,
'at least one of "codeVersionId" or "phpconf"').message)
if codeVersionId and codeVersionId not in config.codeVersions:
return HttpErrorResponse(
ManagerException(ManagerException.E_ARGS_INVALID,
detail='Invalid codeVersionId').message)
dstate = self._state_get()
if dstate == self.S_INIT or dstate == self.S_STOPPED:
if codeVersionId: config.currentCodeVersion = codeVersionId
for key in phpconf:
config.backend_config.php_conf.conf[key] = phpconf[key]
self._configuration_set(config)
elif dstate == self.S_RUNNING:
self._state_set(self.S_ADAPTING, msg='Updating configuration')
Thread(target=self.do_update_configuration,
args=[config, codeVersionId, phpconf]).start()
else:
return HttpErrorResponse(
ManagerException(ManagerException.E_STATE_ERROR).message)
return HttpJsonResponse()
def do_update_configuration(self, config, codeVersionId, phpconf):
if phpconf:
for key in phpconf:
config.backend_config.php_conf.conf[key] = phpconf[key]
self._update_backend(config, config.getBackendServiceNodes())
if codeVersionId != None:
self.prevCodeVersion = config.currentCodeVersion
config.currentCodeVersion = codeVersionId
self._update_code(config, config.serviceNodes.values())
self._update_web(config, config.getWebServiceNodes())
self._update_proxy(config, config.getProxyServiceNodes())
self._state_set(self.S_RUNNING)
self._configuration_set(config)
def _create_initial_configuration(self):
print 'CREATING INIT CONFIG'
config = PHPServiceConfiguration()
config.backend_count = 0
config.web_count = 0
config.proxy_count = 1
config.cdn = False
config.autoscaling = False
if not os.path.exists(self.code_repo):
os.makedirs(self.code_repo)
fileno, path = tempfile.mkstemp()
fd = os.fdopen(fileno, 'w')
fd.write('''<html>
<head>
<title>Welcome to ConPaaS!</title>
</head>
<body bgcolor="white" text="black">
<center><h1>Welcome to ConPaaS!</h1></center>
</body>
</html>''')
fd.close()
os.chmod(path, stat.S_IRWXU | stat.S_IROTH | stat.S_IXOTH)
if len(config.codeVersions) > 0: return
tfile = tarfile.TarFile(name=os.path.join(self.code_repo,
'code-default'),
mode='w')
tfile.add(path, 'index.html')
tfile.close()
os.remove(path)
config.codeVersions['code-default'] = CodeVersion(
'code-default',
'code-default.tar',
'tar',
description='Initial version')
config.currentCodeVersion = 'code-default'
self._configuration_set(config)
self._state_set(self.S_INIT)
def _register_scalaris(self, scalaris):
config = self._configuration_get()
config.backend_config.scalaris = scalaris
self._configuration_set(config)
@expose('POST')
def cdn_enable(self, params):
'''
Enable/disable CDN offloading.
The changes must be reflected on the load balancer a.k.a proxy
'''
try:
enable = params['enable']
if enable:
cdn = params['address']
self.logger.info('Enabling CDN hosted at "%s"' % (cdn))
else:
cdn = False
self.logger.info('Disabling CDN')
config = self._configuration_get()
config.cdn = cdn
self._update_proxy(config, config.getProxyServiceNodes())
self._configuration_set(config)
return HttpJsonResponse({'cdn': config.cdn})
except Exception as e:
self.logger.exception(e)
return HttpErrorResponse(str(e))
class PHPManager(BasicWebserversManager):
def __init__(self, config_parser, **kwargs):
BasicWebserversManager.__init__(self, config_parser)
if kwargs['reset_config']:
self._create_initial_configuration()
self._register_scalaris(kwargs['scalaris'])
if ProvisioningManager is None:
self.logger.info('Provisioning Manager can not be initialized')
self.scaler = None
else:
try:
self.scaler = ProvisioningManager(config_parser)
except Exception as ex:
self.logger.exception('Failed to initialize the Provisioning Manager %s' % str(ex))
def _update_code(self, config, nodes):
for serviceNode in nodes:
# Push the current code version via GIT if necessary
if config.codeVersions[config.currentCodeVersion].type == 'git':
_, err = git.git_push(git.DEFAULT_CODE_REPO, serviceNode.ip)
if err:
self.logger.debug('git-push to %s: %s' % (serviceNode.ip, err))
try:
client.updatePHPCode(serviceNode.ip, 5555, config.currentCodeVersion, config.codeVersions[config.currentCodeVersion].type, os.path.join(self.code_repo, config.currentCodeVersion))
except client.AgentException:
self.logger.exception('Failed to update code at node %s' % str(serviceNode))
self._state_set(self.S_ERROR, msg='Failed to update code at node %s' % str(serviceNode))
raise
def _start_proxy(self, config, nodes):
kwargs = {
'web_list': config.getWebTuples(),
'fpm_list': config.getBackendTuples(),
'cdn': config.cdn,
}
for proxyNode in nodes:
try:
if config.currentCodeVersion != None:
client.createHttpProxy(proxyNode.ip, 5555,
config.proxy_config.port,
config.currentCodeVersion,
**kwargs)
except client.AgentException:
self.logger.exception('Failed to start proxy at node %s' % str(proxyNode))
self._state_set(self.S_ERROR, msg='Failed to start proxy at node %s' % str(proxyNode))
raise
def _update_proxy(self, config, nodes):
kwargs = {
'web_list': config.getWebTuples(),
'fpm_list': config.getBackendTuples(),
'cdn': config.cdn
}
for proxyNode in nodes:
try:
if config.currentCodeVersion != None:
client.updateHttpProxy(proxyNode.ip, 5555,
config.proxy_config.port,
config.currentCodeVersion,
**kwargs)
except client.AgentException:
self.logger.exception('Failed to update proxy at node %s' % str(proxyNode))
self._state_set(self.S_ERROR, msg='Failed to update proxy at node %s' % str(proxyNode))
raise
def _start_backend(self, config, nodes):
for serviceNode in nodes:
try:
client.createPHP(serviceNode.ip, 5555, config.backend_config.port, config.backend_config.scalaris, config.backend_config.php_conf.conf)
except client.AgentException:
self.logger.exception('Failed to start php at node %s' % str(serviceNode))
self._state_set(self.S_ERROR, msg='Failed to start php at node %s' % str(serviceNode))
raise
def _update_backend(self, config, nodes):
for serviceNode in nodes:
try: client.updatePHP(serviceNode.ip, 5555, config.backend_config.port, config.backend_config.scalaris, config.backend_config.php_conf.conf)
except client.AgentException:
self.logger.exception('Failed to update php at node %s' % str(serviceNode))
self._state_set(self.S_ERROR, msg='Failed to update php at node %s' % str(serviceNode))
raise
def _stop_backend(self, config, nodes):
for serviceNode in nodes:
try: client.stopPHP(serviceNode.ip, 5555)
except client.AgentException:
self.logger.exception('Failed to stop php at node %s' % str(serviceNode))
self._state_set(self.S_ERROR, msg='Failed to stop php at node %s' % str(serviceNode))
raise
@expose('GET')
def get_service_info(self, kwargs):
if len(kwargs) != 0:
return HttpErrorResponse(ManagerException(ManagerException.E_ARGS_UNEXPECTED, kwargs.keys()).message)
return HttpJsonResponse({'state': self._state_get(), 'type': 'PHP'})
@expose('GET')
def get_configuration(self, kwargs):
if len(kwargs) != 0:
return HttpErrorResponse(ManagerException(ManagerException.E_ARGS_UNEXPECTED, kwargs.keys()).message)
config = self._configuration_get()
phpconf = {}
for key in config.backend_config.php_conf.defaults:
if key in config.backend_config.php_conf.conf:
phpconf[key] = config.backend_config.php_conf.conf[key]
else:
phpconf[key] = config.backend_config.php_conf.defaults[key]
return HttpJsonResponse({
'codeVersionId': config.currentCodeVersion,
'phpconf': phpconf,
'cdn': config.cdn,
'autoscaling':config.autoscaling
})
@expose('POST')
def on_autoscaling(self, kwargs):
self.logger.info('on_autoscaling entering')
if not self.scaler:
return HttpErrorResponse(
'Provisioning Manager has not been initialized')
try:
self.autoscaling_threads = ThreadPool(processes=1)
if isinstance(int(kwargs['cool_down']), int) and isinstance(int(kwargs['response_time']), int) and kwargs['strategy']:
self.autoscaling_threads.apply_async(self.scaler.do_provisioning, (int(kwargs.pop('response_time')), int(kwargs.pop('cool_down')), kwargs.pop('strategy')))
#self.logger.info('on_autoscaling passed %s' % str( int(kwargs.pop('response_time')) ) )
config = self._configuration_get()
config.autoscaling = True
self._configuration_set(config)
return HttpJsonResponse({'autoscaling': config.autoscaling})
except Exception as ex:
self.logger.critical('Error when trying to start the autoscaling mechanism ')
return HttpErrorResponse(str(ex))
@expose('POST')
def off_autoscaling(self, kwargs):
self.logger.info('off_autoscaling entering')
if not self.scaler:
return HttpErrorResponse(
'Provisioning Manager has not been initialized')
try:
self.autoscaling_threads.terminate()
self.scaler.stop_provisioning()
config = self._configuration_get()
config.autoscaling = False
self._configuration_set(config)
self.logger.info('off_autoscaling done.')
return HttpJsonResponse({'autoscaling': config.autoscaling})
except Exception as ex:
self.logger.critical('Error when trying to stop the autoscaling mechanism ')
return HttpErrorResponse(str(ex))
@expose('POST')
def update_php_configuration(self, kwargs):
codeVersionId = None
if 'codeVersionId' in kwargs:
codeVersionId = kwargs.pop('codeVersionId')
config = self._configuration_get()
phpconf = {}
if 'phpconf' in kwargs:
phpconf = kwargs.pop('phpconf')
for key in phpconf.keys():
if key not in config.backend_config.php_conf.defaults:
return HttpErrorResponse(ManagerException(ManagerException.E_ARGS_UNEXPECTED, 'phpconf attribute "%s"' % (str(key))).message)
if not re.match(config.backend_config.php_conf.format[key], phpconf[key]):
return HttpErrorResponse(ManagerException(ManagerException.E_ARGS_INVALID).message)
if len(kwargs) != 0:
return HttpErrorResponse(ManagerException(ManagerException.E_ARGS_UNEXPECTED, kwargs.keys()).message)
if codeVersionId == None and not phpconf:
return HttpErrorResponse(ManagerException(ManagerException.E_ARGS_MISSING, 'at least one of "codeVersionId" or "phpconf"').message)
if codeVersionId and codeVersionId not in config.codeVersions:
return HttpErrorResponse(ManagerException(ManagerException.E_ARGS_INVALID, detail='Invalid codeVersionId').message)
dstate = self._state_get()
if dstate == self.S_INIT or dstate == self.S_STOPPED:
if codeVersionId: config.currentCodeVersion = codeVersionId
for key in phpconf:
config.backend_config.php_conf.conf[key] = phpconf[key]
self._configuration_set(config)
elif dstate == self.S_RUNNING:
self._state_set(self.S_ADAPTING, msg='Updating configuration')
Thread(target=self.do_update_configuration, args=[config, codeVersionId, phpconf]).start()
else:
return HttpErrorResponse(ManagerException(ManagerException.E_STATE_ERROR).message)
return HttpJsonResponse()
def do_update_configuration(self, config, codeVersionId, phpconf):
if phpconf:
for key in phpconf:
config.backend_config.php_conf.conf[key] = phpconf[key]
self._update_backend(config, config.getBackendServiceNodes())
if codeVersionId != None:
self.prevCodeVersion = config.currentCodeVersion
config.currentCodeVersion = codeVersionId
self._update_code(config, config.serviceNodes.values())
self._update_web(config, config.getWebServiceNodes())
self._update_proxy(config, config.getProxyServiceNodes())
self._state_set(self.S_RUNNING)
self._configuration_set(config)
def _create_initial_configuration(self):
print 'CREATING INIT CONFIG'
config = PHPServiceConfiguration()
config.backend_count = 0
config.web_count = 0
config.proxy_count = 1
config.cdn = False
config.autoscaling = False
if not os.path.exists(self.code_repo):
os.makedirs(self.code_repo)
fileno, path = tempfile.mkstemp()
fd = os.fdopen(fileno, 'w')
fd.write('''<html>
<head>
<title>Welcome to ConPaaS!</title>
</head>
<body bgcolor="white" text="black">
<center><h1>Welcome to ConPaaS!</h1></center>
</body>
</html>''')
fd.close()
os.chmod(path, stat.S_IRWXU | stat.S_IROTH | stat.S_IXOTH)
if len(config.codeVersions) > 0: return
tfile = tarfile.TarFile(name=os.path.join(self.code_repo,'code-default'), mode='w')
tfile.add(path, 'index.html')
tfile.close()
os.remove(path)
config.codeVersions['code-default'] = CodeVersion('code-default', 'code-default.tar', 'tar', description='Initial version')
config.currentCodeVersion = 'code-default'
self._configuration_set(config)
self._state_set(self.S_INIT)
def _register_scalaris(self, scalaris):
config = self._configuration_get()
config.backend_config.scalaris = scalaris
self._configuration_set(config)
@expose('POST')
def cdn_enable(self, params):
'''
Enable/disable CDN offloading.
The changes must be reflected on the load balancer a.k.a proxy
'''
try:
enable = params['enable']
if enable:
cdn = params['address']
self.logger.info('Enabling CDN hosted at "%s"' %(cdn))
else:
cdn = False
self.logger.info('Disabling CDN')
config = self._configuration_get()
config.cdn = cdn
self._update_proxy(config, config.getProxyServiceNodes())
self._configuration_set(config)
return HttpJsonResponse({'cdn': config.cdn})
except Exception as e:
self.logger.exception(e)
return HttpErrorResponse(str(e))