697 lines
24 KiB
Python
697 lines
24 KiB
Python
# Copyright (c) 2015 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 copy
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from oslo_config import cfg
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from oslo_log import log as logging
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from oslo_serialization import jsonutils as json
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import six
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import yaml
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from sahara.plugins import provisioning as plugin_provisioning
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from sahara.service.heat import commons as heat_common
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from sahara.utils import cluster as cl
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from sahara.utils import general as g
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from sahara.utils.openstack import base as b
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from sahara.utils.openstack import heat as h
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from sahara.utils.openstack import neutron
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from sahara.utils.openstack import nova
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CONF = cfg.CONF
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LOG = logging.getLogger(__name__)
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SSH_PORT = 22
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INSTANCE_RESOURCE_NAME = "inst"
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SERVER_GROUP_NAMES = "servgroups"
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AUTO_SECURITY_GROUP_PARAM_NAME = "autosecgroup"
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INTERNAL_DESIGNATE_REC = "internal_designate_record"
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INTERNAL_DESIGNATE_REV_REC = "internal_designate_reverse_record"
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EXTERNAL_DESIGNATE_REC = "external_designate_record"
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EXTERNAL_DESIGNATE_REV_REC = "external_designate_reverse_record"
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# TODO(vgridnev): Using insecure flag until correct way to pass certificate
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# will be invented
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WAIT_CONDITION_SCRIPT_TEMPLATE = '''
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while true; do
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wc_notify --insecure --data-binary '{"status": "SUCCESS"}'
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if [ $? -eq 0 ]; then
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break
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fi
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sleep 10
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done
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'''
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heat_engine_opts = [
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cfg.BoolOpt(
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'heat_enable_wait_condition', default=True,
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help="Enable wait condition feature to reduce polling during cluster "
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"creation")
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]
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CONF.register_opts(heat_engine_opts)
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def _get_inst_name(ng):
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return {
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"list_join": [
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'-',
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[ng.cluster.name.lower(), ng.name.lower(),
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{"get_param": "instance_index"}]
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]
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}
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def _get_inst_domain_name(domain):
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return {
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"list_join": [
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'.',
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[{"get_attr": [INSTANCE_RESOURCE_NAME, "name"]}, domain]]
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}
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def _get_aa_group_name(cluster, server_group_index):
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return g.generate_aa_group_name(cluster.name, server_group_index)
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def _get_port_name(ng):
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return {
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"list_join": [
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'-',
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[ng.cluster.name.lower(), ng.name.lower(),
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{"get_param": "instance_index"},
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"port"]
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]
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}
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def _get_floating_name(ng):
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return {
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"list_join": [
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'-',
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[ng.cluster.name.lower(), ng.name.lower(),
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{"get_param": "instance_index"},
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"floating"]
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]
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}
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def _get_floating_assoc_name(ng):
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return {
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"list_join": [
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'-',
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[ng.cluster.name.lower(), ng.name.lower(),
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{"get_param": "instance_index"},
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"floating", "assoc"]
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]
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}
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def _get_volume_name(ng):
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return {
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"list_join": [
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'-',
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[ng.cluster.name.lower(), ng.name.lower(),
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{"get_param": "instance_index"},
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"volume", {"get_param": "volume_index"}]
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]
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}
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def _get_wc_handle_name(inst_name):
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return '%s-wc-handle' % inst_name
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def _get_wc_waiter_name(inst_name):
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return '%s-wc-waiter' % inst_name
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def _get_index_from_inst_name(inst_name):
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return inst_name.split('-')[-1]
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class ClusterStack(object):
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def __init__(self, cluster):
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self.cluster = cluster
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self.node_groups_extra = {}
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self.files = {}
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self.last_updated_time = None
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self.base_info = (
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"Data Processing Cluster by Sahara\n"
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"Sahara cluster name: {cluster}\n"
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"Sahara engine: {version}".format(
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cluster=cluster.name, version=heat_common.HEAT_ENGINE_VERSION)
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)
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self._current_sg_index = 1
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def _node_group_description(self, ng):
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return "{info}\nNode group {node_group}".format(
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info=self.base_info, node_group=ng.name)
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def _asg_for_node_group_description(self, ng):
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return ("{info}\n"
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"Auto security group for Sahara Node Group: "
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"{node_group}".format(info=self.base_info, node_group=ng.name))
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def _volume_for_node_group_description(self, ng):
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return ("{info}\n"
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"Volume for Sahara Node Group {node_group}".format(
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node_group=ng.name, info=self.base_info))
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def add_node_group_extra(self, node_group_id, node_count,
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gen_userdata_func, instances_to_delete=None):
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self.node_groups_extra[node_group_id] = {
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'node_count': node_count,
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'gen_userdata_func': gen_userdata_func,
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'instances_to_delete': instances_to_delete
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}
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def _get_main_template(self, instances_to_delete=None):
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outputs = {}
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resources = self._serialize_resources(outputs, instances_to_delete)
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return yaml.safe_dump({
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"heat_template_version": heat_common.HEAT_TEMPLATE_VERSION,
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"description": self.base_info,
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"resources": resources,
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"outputs": outputs
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})
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def instantiate(self, update_existing, disable_rollback=True,
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instances_to_delete=None):
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main_tmpl = self._get_main_template(instances_to_delete)
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kwargs = {
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'stack_name': self.cluster.stack_name,
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'timeout_mins': 180,
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'disable_rollback': disable_rollback,
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'parameters': {},
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'template': main_tmpl,
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'files': self.files
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}
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if CONF.heat_stack_tags:
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kwargs['tags'] = ",".join(CONF.heat_stack_tags)
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log_kwargs = copy.deepcopy(kwargs)
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log_kwargs['template'] = yaml.safe_load(log_kwargs['template'])
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for filename in log_kwargs['files'].keys():
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log_kwargs['files'][filename] = yaml.safe_load(
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log_kwargs['files'][filename])
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log_kwargs = json.dumps(log_kwargs)
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if not update_existing:
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LOG.debug("Creating Heat stack with args: \n{args}"
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.format(args=log_kwargs))
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b.execute_with_retries(h.client().stacks.create, **kwargs)
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else:
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stack = h.get_stack(self.cluster.stack_name)
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self.last_updated_time = stack.updated_time
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LOG.debug("Updating Heat stack {stack} with args: \n"
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"{args}".format(stack=stack, args=log_kwargs))
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b.execute_with_retries(stack.update, **kwargs)
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def _get_server_group_name(self):
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index = self._current_sg_index
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# computing server group index in round robin fashion
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if index < self.cluster.anti_affinity_ratio:
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self._current_sg_index = (index + 1)
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else:
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self._current_sg_index = 1
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return _get_aa_group_name(self.cluster, self._current_sg_index)
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def _need_aa_server_group(self, node_group):
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for node_process in node_group.node_processes:
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if node_process in self.cluster.anti_affinity:
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return True
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return False
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def _get_anti_affinity_scheduler_hints(self, node_group):
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if not self._need_aa_server_group(node_group):
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return {}
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return {
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"scheduler_hints": {
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"group": {
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"get_param": [SERVER_GROUP_NAMES,
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{"get_param": "instance_index"}]
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}
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}
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}
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def _serialize_resources(self, outputs, instances_to_delete=None):
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resources = {}
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if self.cluster.anti_affinity:
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# Creating server groups equal to the anti_affinity_ratio
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for i in range(0, self.cluster.anti_affinity_ratio):
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resources.update(self._serialize_aa_server_group(i + 1))
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for ng in self.cluster.node_groups:
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resources.update(self._serialize_ng_group(ng, outputs,
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instances_to_delete))
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for ng in self.cluster.node_groups:
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resources.update(self._serialize_auto_security_group(ng))
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return resources
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def _serialize_ng_group(self, ng, outputs, instances_to_delete=None):
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ng_file_name = "file://" + ng.name + ".yaml"
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self.files[ng_file_name] = self._serialize_ng_file(ng)
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outputs[ng.name + "-instances"] = {
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"value": {"get_attr": [ng.name, "instance"]}}
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properties = {"instance_index": "%index%"}
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if ng.cluster.anti_affinity:
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ng_count = self.node_groups_extra[ng.id]['node_count']
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# assuming instance_index also start from index 0
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for i in range(0, ng_count):
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server_group_name = self._get_server_group_name()
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server_group_resource = {
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"get_resource": server_group_name
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}
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if SERVER_GROUP_NAMES not in properties:
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properties[SERVER_GROUP_NAMES] = []
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properties[SERVER_GROUP_NAMES].insert(i, server_group_resource)
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if ng.auto_security_group:
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properties[AUTO_SECURITY_GROUP_PARAM_NAME] = {
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'get_resource': g.generate_auto_security_group_name(ng)}
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removal_policies = []
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if self.node_groups_extra[ng.id]['instances_to_delete']:
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resource_list = []
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for name in self.node_groups_extra[ng.id]['instances_to_delete']:
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resource_list.append(_get_index_from_inst_name(name))
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removal_policies.append({'resource_list': resource_list})
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return {
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ng.name: {
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"type": "OS::Heat::ResourceGroup",
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"properties": {
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"count": self.node_groups_extra[ng.id]['node_count'],
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"removal_policies": removal_policies,
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"resource_def": {
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"type": ng_file_name,
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"properties": properties
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}
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}
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}
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}
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def _serialize_ng_file(self, ng):
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parameters = {"instance_index": {"type": "string"}}
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if ng.cluster.anti_affinity:
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parameters[SERVER_GROUP_NAMES] = {"type": "comma_delimited_list",
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"default": []}
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if ng.auto_security_group:
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parameters[AUTO_SECURITY_GROUP_PARAM_NAME] = {'type': "string"}
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return yaml.safe_dump({
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"heat_template_version": heat_common.HEAT_TEMPLATE_VERSION,
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"description": self._node_group_description(ng),
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"parameters": parameters,
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"resources": self._serialize_instance(ng),
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"outputs": {
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"instance": {"value": {
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"physical_id": {"get_resource": INSTANCE_RESOURCE_NAME},
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"name": {"get_attr": [INSTANCE_RESOURCE_NAME, "name"]}
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}}}
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})
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def _serialize_auto_security_group(self, ng):
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if not ng.auto_security_group:
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return {}
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security_group_name = g.generate_auto_security_group_name(ng)
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security_group_description = self._asg_for_node_group_description(ng)
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res_type = "OS::Neutron::SecurityGroup"
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desc_key = "description"
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rules_key = "rules"
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create_rule = lambda ip_version, cidr, proto, from_port, to_port: {
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"ethertype": "IPv{}".format(ip_version),
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"remote_ip_prefix": cidr,
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"protocol": proto,
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"port_range_min": six.text_type(from_port),
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"port_range_max": six.text_type(to_port)}
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rules = self._serialize_auto_security_group_rules(ng, create_rule)
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return {
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security_group_name: {
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"type": res_type,
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"properties": {
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desc_key: security_group_description,
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rules_key: rules
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}
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}
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}
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def _serialize_auto_security_group_rules(self, ng, create_rule):
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rules = []
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for port in ng.open_ports:
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rules.append(create_rule(4, '0.0.0.0/0', 'tcp', port, port))
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rules.append(create_rule(6, '::/0', 'tcp', port, port))
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rules.append(create_rule(4, '0.0.0.0/0', 'tcp', SSH_PORT, SSH_PORT))
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rules.append(create_rule(6, '::/0', 'tcp', SSH_PORT, SSH_PORT))
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# open all traffic for private networks
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for cidr in neutron.get_private_network_cidrs(ng.cluster):
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ip_ver = 6 if ':' in cidr else 4
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for protocol in ['tcp', 'udp']:
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rules.append(create_rule(ip_ver, cidr, protocol, 1, 65535))
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rules.append(create_rule(ip_ver, cidr, 'icmp', 0, 255))
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return rules
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@staticmethod
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def _get_wait_condition_timeout(ng):
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configs = ng.cluster.cluster_configs
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timeout_cfg = plugin_provisioning.HEAT_WAIT_CONDITION_TIMEOUT
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cfg_target = timeout_cfg.applicable_target
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cfg_name = timeout_cfg.name
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return int(configs.get(cfg_target,
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{}).get(cfg_name, timeout_cfg.default_value))
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def _serialize_designate_records(self):
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if not self.cluster.use_designate_feature():
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return {}
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hostname = _get_inst_domain_name(self.cluster.domain_name)
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return {
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INTERNAL_DESIGNATE_REC: {
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'type': 'OS::Designate::Record',
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'properties': {
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'name': hostname,
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'type': 'A',
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'data': {'get_attr': [
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INSTANCE_RESOURCE_NAME, 'networks', 'private', 0]},
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'domain': self.cluster.domain_name
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}
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},
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EXTERNAL_DESIGNATE_REC: {
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'type': 'OS::Designate::Record',
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'properties': {
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'name': hostname,
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'type': 'A',
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'data': {'get_attr': ['floating_ip', 'ip']},
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'domain': self.cluster.domain_name
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}
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}
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}
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def _serialize_designate_reverse_records(self):
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if not self.cluster.use_designate_feature():
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return {}
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def _generate_reversed_ip(ip):
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return {
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'list_join': [
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'.',
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[
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{'str_split': ['.', ip, 3]},
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{'str_split': ['.', ip, 2]},
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{'str_split': ['.', ip, 1]},
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{'str_split': ['.', ip, 0]},
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'in-addr.arpa.'
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]
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]
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}
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hostname = _get_inst_domain_name(self.cluster.domain_name)
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return {
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INTERNAL_DESIGNATE_REV_REC: {
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'type': 'OS::Designate::Record',
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'properties': {
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'name': _generate_reversed_ip({'get_attr': [
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INSTANCE_RESOURCE_NAME, 'networks', 'private', 0]}),
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'type': 'PTR',
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'data': hostname,
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'domain': 'in-addr.arpa.'
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}
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},
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EXTERNAL_DESIGNATE_REV_REC: {
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'type': 'OS::Designate::Record',
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'properties': {
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'name': _generate_reversed_ip(
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{'get_attr': ['floating_ip', 'ip']}),
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'type': 'PTR',
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'data': hostname,
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'domain': 'in-addr.arpa.'
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}
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}
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}
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def _serialize_instance(self, ng):
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resources = {}
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properties = {}
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inst_name = _get_inst_name(ng)
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private_net = self.cluster.neutron_management_network
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sec_groups = self._get_security_groups(ng)
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# Check if cluster contains user key-pair and include it to template.
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if self.cluster.user_keypair_id:
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properties["key_name"] = self.cluster.user_keypair_id
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port_name = _get_port_name(ng)
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resources.update(self._serialize_port(
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port_name, private_net, sec_groups))
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properties["networks"] = [{"port": {"get_resource": "port"}}]
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if ng.floating_ip_pool:
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resources.update(self._serialize_neutron_floating(ng))
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gen_userdata_func = self.node_groups_extra[ng.id]['gen_userdata_func']
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key_script = gen_userdata_func(ng, inst_name)
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if CONF.heat_enable_wait_condition:
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etc_hosts = cl.etc_hosts_entry_for_service('orchestration')
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if etc_hosts:
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etc_hosts = "echo '%s' | sudo tee -a /etc/hosts" % etc_hosts
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tml = [key_script, WAIT_CONDITION_SCRIPT_TEMPLATE]
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if etc_hosts:
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tml = [key_script, etc_hosts, WAIT_CONDITION_SCRIPT_TEMPLATE]
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userdata = {
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"str_replace": {
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"template": "\n".join(tml),
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"params": {
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"wc_notify": {
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"get_attr": [
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_get_wc_handle_name(ng.name),
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"curl_cli"
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]
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}
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}
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}
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}
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else:
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userdata = key_script
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if ng.availability_zone:
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properties["availability_zone"] = ng.availability_zone
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properties.update(self._get_anti_affinity_scheduler_hints(ng))
|
|
|
|
properties.update({
|
|
"name": inst_name,
|
|
"flavor": six.text_type(ng.flavor_id),
|
|
"admin_user": ng.image_username,
|
|
"user_data": userdata
|
|
})
|
|
|
|
if ng.boot_from_volume:
|
|
resources.update(self._get_bootable_volume(ng))
|
|
properties["block_device_mapping"] = [
|
|
{"device_name": "vda",
|
|
"volume_id": {"get_resource": "bootable_volume"},
|
|
"delete_on_termination": "true"}]
|
|
|
|
else:
|
|
properties.update({"image": ng.get_image_id()})
|
|
|
|
resources.update({
|
|
INSTANCE_RESOURCE_NAME: {
|
|
"type": "OS::Nova::Server",
|
|
"properties": properties
|
|
}
|
|
})
|
|
|
|
resources.update(self._serialize_designate_records())
|
|
resources.update(self._serialize_designate_reverse_records())
|
|
resources.update(self._serialize_volume(ng))
|
|
resources.update(self._serialize_wait_condition(ng))
|
|
return resources
|
|
|
|
def _get_bootable_volume(self, node_group):
|
|
node_group_flavor = nova.get_flavor(id=node_group.flavor_id)
|
|
image_size = node_group_flavor.disk
|
|
|
|
return {
|
|
"bootable_volume": {
|
|
"type": "OS::Cinder::Volume",
|
|
"properties": {
|
|
"size": image_size,
|
|
"image": node_group.get_image_id()
|
|
}
|
|
}
|
|
}
|
|
|
|
def _serialize_wait_condition(self, ng):
|
|
if not CONF.heat_enable_wait_condition:
|
|
return {}
|
|
return {
|
|
_get_wc_handle_name(ng.name): {
|
|
"type": "OS::Heat::WaitConditionHandle"
|
|
},
|
|
_get_wc_waiter_name(ng.name): {
|
|
"type": "OS::Heat::WaitCondition",
|
|
"depends_on": INSTANCE_RESOURCE_NAME,
|
|
"properties": {
|
|
"timeout": self._get_wait_condition_timeout(ng),
|
|
"handle": {"get_resource": _get_wc_handle_name(ng.name)}
|
|
}
|
|
}
|
|
}
|
|
|
|
def _serialize_neutron_floating(self, ng):
|
|
return {
|
|
"floating_ip": {
|
|
"type": "OS::Neutron::FloatingIP",
|
|
"properties": {
|
|
"floating_network_id": ng.floating_ip_pool,
|
|
"port_id": {"get_resource": "port"}
|
|
}
|
|
}
|
|
}
|
|
|
|
def _serialize_port(self, port_name, fixed_net_id, security_groups):
|
|
properties = {
|
|
"network_id": fixed_net_id,
|
|
"replacement_policy": "AUTO",
|
|
"name": port_name
|
|
}
|
|
if security_groups:
|
|
properties["security_groups"] = security_groups
|
|
|
|
return {
|
|
"port": {
|
|
"type": "OS::Neutron::Port",
|
|
"properties": properties,
|
|
}
|
|
}
|
|
|
|
def _serialize_volume(self, ng):
|
|
if not ng.volumes_size or not ng.volumes_per_node:
|
|
return {}
|
|
volume_file_name = "file://" + ng.name + "-volume.yaml"
|
|
self.files[volume_file_name] = self._serialize_volume_file(ng)
|
|
|
|
return {
|
|
ng.name: {
|
|
"type": "OS::Heat::ResourceGroup",
|
|
"properties": {
|
|
"count": ng.volumes_per_node,
|
|
"resource_def": {
|
|
"type": volume_file_name,
|
|
"properties": {
|
|
"volume_index": "%index%",
|
|
"instance_index": {"get_param": "instance_index"},
|
|
"instance": {"get_resource":
|
|
INSTANCE_RESOURCE_NAME}}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
def _serialize_volume_file(self, ng):
|
|
volume_name = _get_volume_name(ng)
|
|
properties = {
|
|
"name": volume_name,
|
|
"size": six.text_type(ng.volumes_size)
|
|
}
|
|
if ng.volume_type:
|
|
properties["volume_type"] = ng.volume_type
|
|
|
|
if ng.volumes_availability_zone:
|
|
properties["availability_zone"] = ng.volumes_availability_zone
|
|
|
|
if ng.volume_local_to_instance:
|
|
properties["scheduler_hints"] = {
|
|
"local_to_instance": {"get_param": "instance"}}
|
|
|
|
return yaml.safe_dump({
|
|
"heat_template_version": heat_common.HEAT_TEMPLATE_VERSION,
|
|
"description": self._volume_for_node_group_description(ng),
|
|
"parameters": {
|
|
"volume_index": {
|
|
"type": "string"
|
|
},
|
|
"instance_index": {
|
|
"type": "string"
|
|
},
|
|
"instance": {
|
|
"type": "string"
|
|
}},
|
|
"resources": {
|
|
"volume": {
|
|
"type": "OS::Cinder::Volume",
|
|
"properties": properties
|
|
},
|
|
"volume-attachment": {
|
|
"type": "OS::Cinder::VolumeAttachment",
|
|
"properties": {
|
|
"instance_uuid": {"get_param": "instance"},
|
|
"volume_id": {"get_resource": "volume"},
|
|
}
|
|
}},
|
|
"outputs": {}
|
|
})
|
|
|
|
def _get_security_groups(self, node_group):
|
|
node_group_sg = list(node_group.security_groups or [])
|
|
if node_group.auto_security_group:
|
|
node_group_sg += [
|
|
{"get_param": AUTO_SECURITY_GROUP_PARAM_NAME}
|
|
]
|
|
return node_group_sg
|
|
|
|
def _serialize_aa_server_group(self, server_group_index):
|
|
server_group_name = _get_aa_group_name(self.cluster,
|
|
server_group_index)
|
|
return {
|
|
server_group_name: {
|
|
"type": "OS::Nova::ServerGroup",
|
|
"properties": {
|
|
"name": server_group_name,
|
|
"policies": ["anti-affinity"]
|
|
}
|
|
}
|
|
}
|
|
|
|
def get_node_group_instances(self, node_group):
|
|
cluster = node_group.cluster
|
|
outputs = h.get_stack_outputs(cluster)
|
|
for output in outputs:
|
|
if output['output_key'] == node_group.name + "-instances":
|
|
return output["output_value"]
|
|
|
|
return []
|