387 lines
14 KiB
Python
387 lines
14 KiB
Python
# Copyright (c) 2013 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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"""Handles database requests from other savanna services."""
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import copy
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from savanna.db import base as db_base
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from savanna.utils import configs
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from savanna.utils import crypto
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CLUSTER_DEFAULTS = {
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"cluster_configs": {},
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"anti_affinity": [],
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"status": "undefined",
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"status_description": "",
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"info": {},
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}
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NODE_GROUP_DEFAULTS = {
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"node_processes": [],
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"node_configs": {},
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"volumes_per_node": 0,
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"volumes_size": 0,
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"volume_mount_prefix": "/volumes/disk",
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"floating_ip_pool": None
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}
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INSTANCE_DEFAULTS = {
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"volumes": []
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}
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DATA_SOURCE_DEFAULTS = {
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"credentials": {}
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}
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def _apply_defaults(values, defaults):
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new_values = copy.deepcopy(defaults)
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new_values.update(values)
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return new_values
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class ConductorManager(db_base.Base):
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"""This class aimed to conduct things.
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The methods in the base API for savanna-conductor are various proxy
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operations that allows other services to get specific work done without
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locally accessing the database.
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Additionally it performs some template-to-object copying magic.
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"""
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def __init__(self):
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super(ConductorManager, self).__init__()
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## Common helpers
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def _populate_node_groups(self, context, cluster):
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node_groups = cluster.get('node_groups')
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if not node_groups:
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return
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for node_group in node_groups:
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node_group["tenant_id"] = context.tenant_id
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self._populate_node_group(context, node_group)
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def _cleanup_node_group(self, node_group):
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node_group.pop('id', None)
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node_group.pop('created_at', None)
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node_group.pop('updated_at', None)
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def _populate_node_group(self, context, node_group):
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ng_tmpl_id = node_group.get('node_group_template_id')
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if not ng_tmpl_id:
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node_group.update(_apply_defaults(node_group, NODE_GROUP_DEFAULTS))
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self._cleanup_node_group(node_group)
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return
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ng_tmpl = self.node_group_template_get(context, ng_tmpl_id)
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if not ng_tmpl:
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node_group.update(_apply_defaults(node_group, NODE_GROUP_DEFAULTS))
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self._cleanup_node_group(node_group)
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return
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new_values = _apply_defaults(ng_tmpl, NODE_GROUP_DEFAULTS)
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new_values.update(node_group)
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new_values['node_configs'] = configs.merge_configs(
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ng_tmpl.get('node_configs'),
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node_group.get('node_configs'))
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node_group.clear()
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node_group.update(new_values)
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self._cleanup_node_group(node_group)
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## Cluster ops
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def cluster_get(self, context, cluster):
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"""Return the cluster or None if it does not exist."""
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return self.db.cluster_get(context, cluster)
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def cluster_get_all(self, context, **kwargs):
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"""Get all clusters filtered by **kwargs e.g.
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cluster_get_all(plugin_name='vanilla', hadoop_version='1.1')
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"""
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return self.db.cluster_get_all(context, **kwargs)
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def cluster_create(self, context, values):
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"""Create a cluster from the values dictionary."""
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values = copy.deepcopy(values)
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values = _apply_defaults(values, CLUSTER_DEFAULTS)
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values['tenant_id'] = context.tenant_id
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private_key, public_key = crypto.generate_key_pair()
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values['management_private_key'] = private_key
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values['management_public_key'] = public_key
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cluster_template_id = values.get('cluster_template_id')
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if cluster_template_id:
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c_tmpl = self.cluster_template_get(context, cluster_template_id)
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if c_tmpl:
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new_values = c_tmpl.copy()
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del new_values['created_at']
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del new_values['updated_at']
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del new_values['id']
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new_values.update(values)
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new_values['cluster_configs'] = configs.merge_configs(
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c_tmpl.get('cluster_configs'),
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values.get('cluster_configs'))
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values = new_values
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self._populate_node_groups(context, values)
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return self.db.cluster_create(context, values)
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def cluster_update(self, context, cluster, values):
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"""Set the given properties on cluster and update it."""
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values = copy.deepcopy(values)
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return self.db.cluster_update(context, cluster, values)
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def cluster_destroy(self, context, cluster):
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"""Destroy the cluster or raise if it does not exist."""
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self.db.cluster_destroy(context, cluster)
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## Node Group ops
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def node_group_add(self, context, cluster, values):
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"""Create a Node Group from the values dictionary."""
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values = copy.deepcopy(values)
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self._populate_node_group(context, values)
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values['tenant_id'] = context.tenant_id
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return self.db.node_group_add(context, cluster, values)
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def node_group_update(self, context, node_group, values):
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"""Set the given properties on node_group and update it."""
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values = copy.deepcopy(values)
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self.db.node_group_update(context, node_group, values)
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def node_group_remove(self, context, node_group):
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"""Destroy the node_group or raise if it does not exist."""
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self.db.node_group_remove(context, node_group)
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## Instance ops
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def instance_add(self, context, node_group, values):
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"""Create an Instance from the values dictionary."""
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values = copy.deepcopy(values)
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values = _apply_defaults(values, INSTANCE_DEFAULTS)
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values['tenant_id'] = context.tenant_id
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return self.db.instance_add(context, node_group, values)
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def instance_update(self, context, instance, values):
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"""Set the given properties on Instance and update it."""
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values = copy.deepcopy(values)
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self.db.instance_update(context, instance, values)
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def instance_remove(self, context, instance):
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"""Destroy the Instance or raise if it does not exist."""
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self.db.instance_remove(context, instance)
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## Volumes ops
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def append_volume(self, context, instance, volume_id):
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"""Append volume_id to instance."""
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self.db.append_volume(context, instance, volume_id)
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def remove_volume(self, context, instance, volume_id):
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"""Remove volume_id in instance."""
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self.db.remove_volume(context, instance, volume_id)
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## Cluster Template ops
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def cluster_template_get(self, context, cluster_template):
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"""Return the cluster_template or None if it does not exist."""
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return self.db.cluster_template_get(context, cluster_template)
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def cluster_template_get_all(self, context):
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"""Get all cluster_templates."""
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return self.db.cluster_template_get_all(context)
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def cluster_template_create(self, context, values):
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"""Create a cluster_template from the values dictionary."""
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values = copy.deepcopy(values)
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values = _apply_defaults(values, CLUSTER_DEFAULTS)
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values['tenant_id'] = context.tenant_id
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self._populate_node_groups(context, values)
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return self.db.cluster_template_create(context, values)
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def cluster_template_destroy(self, context, cluster_template):
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"""Destroy the cluster_template or raise if it does not exist."""
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self.db.cluster_template_destroy(context, cluster_template)
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## Node Group Template ops
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def node_group_template_get(self, context, node_group_template):
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"""Return the Node Group Template or None if it does not exist."""
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return self.db.node_group_template_get(context, node_group_template)
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def node_group_template_get_all(self, context):
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"""Get all Node Group Templates."""
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return self.db.node_group_template_get_all(context)
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def node_group_template_create(self, context, values):
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"""Create a Node Group Template from the values dictionary."""
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values = copy.deepcopy(values)
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values = _apply_defaults(values, NODE_GROUP_DEFAULTS)
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values['tenant_id'] = context.tenant_id
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return self.db.node_group_template_create(context, values)
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def node_group_template_destroy(self, context, node_group_template):
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"""Destroy the Node Group Template or raise if it does not exist."""
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self.db.node_group_template_destroy(context, node_group_template)
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## Data Source ops
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def data_source_get(self, context, data_source):
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"""Return the Data Source or None if it does not exist."""
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return self.db.data_source_get(context, data_source)
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def data_source_get_all(self, context):
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"""Get all Data Sources."""
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return self.db.data_source_get_all(context)
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def data_source_create(self, context, values):
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"""Create a Data Source from the values dictionary."""
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values = copy.deepcopy(values)
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values = _apply_defaults(values, DATA_SOURCE_DEFAULTS)
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values['tenant_id'] = context.tenant_id
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return self.db.data_source_create(context, values)
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def data_source_destroy(self, context, data_source):
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"""Destroy the Data Source or raise if it does not exist."""
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return self.db.data_source_destroy(context, data_source)
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##JobExecution ops
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def job_execution_get(self, context, job_execution):
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"""Return the JobExecution or None if it does not exist."""
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return self.db.job_execution_get(context, job_execution)
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def job_execution_get_all(self, context, **kwargs):
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"""Get all JobExecutions filtered by **kwargs e.g.
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job_execution_get_all(cluster_id=12, input_id=123)
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"""
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return self.db.job_execution_get_all(context, **kwargs)
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def job_execution_count(self, context, **kwargs):
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"""Count number of JobExecutions filtered by **kwargs e.g.
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job_execution_count(cluster_id=12, input_id=123)
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"""
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return self.db.job_execution_count(context, **kwargs)
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def job_execution_create(self, context, values):
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"""Create a JobExecution from the values dictionary."""
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values = copy.deepcopy(values)
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values['tenant_id'] = context.tenant_id
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return self.db.job_execution_create(context, values)
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def job_execution_update(self, context, job_execution, values):
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"""Updates a JobExecution from the values dictionary."""
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return self.db.job_execution_update(context, job_execution, values)
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def job_execution_destroy(self, context, job_execution):
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"""Destroy the JobExecution or raise if it does not exist."""
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return self.db.job_execution_destroy(context, job_execution)
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## Job ops
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def job_get(self, context, job):
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"""Return the Job or None if it does not exist."""
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return self.db.job_get(context, job)
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def job_get_all(self, context):
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"""Get all Jobs."""
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return self.db.job_get_all(context)
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def job_create(self, context, values):
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"""Create a Job from the values dictionary."""
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values = copy.deepcopy(values)
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values['tenant_id'] = context.tenant_id
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return self.db.job_create(context, values)
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def job_update(self, context, job, values):
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"""Updates a Job from the values dictionary."""
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return self.db.job_update(context, job, values)
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def job_destroy(self, context, job):
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"""Destroy the Job or raise if it does not exist."""
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self.db.job_destroy(context, job)
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## JobBinary ops
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def job_binary_get_all(self, context):
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"""Get all JobBinaries."""
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return self.db.job_binary_get_all(context)
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def job_binary_get(self, context, job_binary_id):
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"""Return the JobBinary or None if it does not exist."""
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return self.db.job_binary_get(context, job_binary_id)
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def job_binary_create(self, context, values):
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"""Create a JobBinary from the values dictionary."""
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values = copy.deepcopy(values)
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values['tenant_id'] = context.tenant_id
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return self.db.job_binary_create(context, values)
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def job_binary_destroy(self, context, job_binary):
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"""Destroy the JobBinary or raise if it does not exist."""
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self.db.job_binary_destroy(context, job_binary)
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## JobBinaryInternal ops
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def job_binary_internal_get_all(self, context):
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"""Get all JobBinaryInternals
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The JobBinaryInternals returned do not contain a data field.
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"""
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return self.db.job_binary_internal_get_all(context)
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def job_binary_internal_get(self, context, job_binary_internal_id):
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"""Return the JobBinaryInternal or None if it does not exist
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The JobBinaryInternal returned does not contain a data field.
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"""
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return self.db.job_binary_internal_get(context, job_binary_internal_id)
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def job_binary_internal_create(self, context, values):
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"""Create a JobBinaryInternal from the values dictionary."""
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# Since values["data"] is (should be) encoded as a string
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# here the deepcopy of values only incs a reference count on data.
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# This is nice, since data could be big...
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values = copy.deepcopy(values)
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values['tenant_id'] = context.tenant_id
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values['datasize'] = len(values["data"])
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return self.db.job_binary_internal_create(context, values)
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def job_binary_internal_destroy(self, context, job_binary_internal):
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"""Destroy the JobBinaryInternal or raise if it does not exist."""
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self.db.job_binary_internal_destroy(context, job_binary_internal)
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def job_binary_internal_get_raw_data(self,
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context, job_binary_internal_id):
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"""Return the binary data field from a JobBinaryInternal."""
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return self.db.job_binary_internal_get_raw_data(
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context,
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job_binary_internal_id)
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