155 lines
4.5 KiB
Python
155 lines
4.5 KiB
Python
# Copyright (c) 2014 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import abc
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import six
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from sahara import conductor
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from sahara import context
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from sahara.plugins.cdh import db_helper as dh
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from sahara.plugins.cdh import health
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@six.add_metaclass(abc.ABCMeta)
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class AbstractVersionHandler(object):
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@abc.abstractmethod
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def get_node_processes(self):
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return
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@abc.abstractmethod
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def get_plugin_configs(self):
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return
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@abc.abstractmethod
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def configure_cluster(self, cluster):
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return
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@abc.abstractmethod
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def start_cluster(self, cluster):
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return
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@abc.abstractmethod
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def validate(self, cluster):
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return
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@abc.abstractmethod
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def scale_cluster(self, cluster, instances):
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return
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@abc.abstractmethod
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def decommission_nodes(self, cluster, instances):
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return
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@abc.abstractmethod
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def validate_scaling(self, cluster, existing, additional):
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return
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@abc.abstractmethod
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def get_edp_engine(self, cluster, job_type):
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return
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@abc.abstractmethod
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def get_edp_job_types(self):
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return []
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@abc.abstractmethod
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def get_edp_config_hints(self, job_type):
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return {}
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@abc.abstractmethod
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def get_open_ports(self, node_group):
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return
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def on_terminate_cluster(self, cluster):
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dh.delete_passwords_from_keymanager(cluster)
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class BaseVersionHandler(AbstractVersionHandler):
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def __init__(self):
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# Need to be specitied in subclass
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self.config_helper = None # config helper
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self.cloudera_utils = None # CoulderaUtils
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self.deploy = None # to deploy
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self.edp_engine = None
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self.plugin_utils = None # PluginUtils
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self.validation = None # to validate
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def get_plugin_configs(self):
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return self.config_helper.get_plugin_configs()
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def get_node_processes(self):
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raise NotImplementedError()
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def validate(self, cluster):
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self.validation.validate_cluster_creating(cluster)
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def configure_cluster(self, cluster):
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self.deploy.configure_cluster(cluster)
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conductor.API.cluster_update(
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context.ctx(), cluster, {
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'info':
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self.cloudera_utils.get_cloudera_manager_info(cluster)})
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def start_cluster(self, cluster):
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self.deploy.start_cluster(cluster)
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self._set_cluster_info(cluster)
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def decommission_nodes(self, cluster, instances):
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self.deploy.decommission_cluster(cluster, instances)
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def validate_scaling(self, cluster, existing, additional):
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self.validation.validate_existing_ng_scaling(cluster, existing)
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self.validation.validate_additional_ng_scaling(cluster, additional)
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def scale_cluster(self, cluster, instances):
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self.deploy.scale_cluster(cluster, instances)
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def _set_cluster_info(self, cluster):
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info = self.cloudera_utils.get_cloudera_manager_info(cluster)
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hue = self.cloudera_utils.pu.get_hue(cluster)
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if hue:
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info['Hue Dashboard'] = {
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'Web UI': 'http://%s:8888' % hue.get_ip_or_dns_name()
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}
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ctx = context.ctx()
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conductor.API.cluster_update(ctx, cluster, {'info': info})
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def get_edp_engine(self, cluster, job_type):
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oozie_type = self.edp_engine.EdpOozieEngine.get_supported_job_types()
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if job_type in oozie_type:
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return self.edp_engine.EdpOozieEngine(cluster)
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return None
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def get_edp_job_types(self):
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return self.edp_engine.EdpOozieEngine.get_supported_job_types()
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def get_edp_config_hints(self, job_type):
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return self.edp_engine.EdpOozieEngine.get_possible_job_config(job_type)
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def get_open_ports(self, node_group):
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return self.deploy.get_open_ports(node_group)
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def recommend_configs(self, cluster, scaling):
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self.plugin_utils.recommend_configs(
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cluster, self.get_plugin_configs(), scaling)
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def get_health_checks(self, cluster):
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return health.get_health_checks(cluster, self.cloudera_utils)
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