[WIP] ng-9: Driver for nodegroup operations
This adds the support for creating and deleting worker nodegroups using different stack per nodegroup. In order to be backwards compatible, default nodegroups will remain in one stack. Having this in micd cluster status is now calculated aggregating the statuses of the underlying stacks. Change-Id: I97839ab8495ed5d860785dff1f6e3cc59b6a9ff7
This commit is contained in:
parent
c981cc9170
commit
de94afde5f
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@ -11,6 +11,7 @@
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# under the License.
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import abc
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import collections
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import os
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import six
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@ -38,6 +39,10 @@ from magnum.objects import fields
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LOG = logging.getLogger(__name__)
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NodeGroupStatus = collections.namedtuple('NodeGroupStatus',
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'status reason is_default')
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@six.add_metaclass(abc.ABCMeta)
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class HeatDriver(driver.Driver):
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"""Base Driver class for using Heat
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@ -58,12 +63,14 @@ class HeatDriver(driver.Driver):
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scale_manager=scale_manager)
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def _extract_template_definition(self, context, cluster,
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scale_manager=None):
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scale_manager=None,
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nodegroups=None):
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cluster_template = conductor_utils.retrieve_cluster_template(context,
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cluster)
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definition = self.get_template_definition()
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return definition.extract_definition(context, cluster_template,
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cluster,
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nodegroups=nodegroups,
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scale_manager=scale_manager)
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def _get_env_files(self, template_path, env_rel_paths):
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@ -135,7 +142,12 @@ class HeatDriver(driver.Driver):
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self.pre_delete_cluster(context, cluster)
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LOG.info("Starting to delete cluster %s", cluster.uuid)
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self._delete_stack(context, clients.OpenStackClients(context), cluster)
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osc = clients.OpenStackClients(context)
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for ng in cluster.nodegroups:
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if ng.is_default:
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continue
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self._delete_stack(context, osc, ng.stack_id)
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self._delete_stack(context, osc, cluster.default_ng_master.stack_id)
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def resize_cluster(self, context, cluster, resize_manager,
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node_count, nodes_to_remove, nodegroup=None,
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@ -174,6 +186,8 @@ class HeatDriver(driver.Driver):
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# no cluster_create_timeout value was passed in to the request
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# so falling back on configuration file value
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heat_timeout = cfg.CONF.cluster_heat.create_timeout
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heat_params['is_cluster_stack'] = True
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fields = {
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'stack_name': stack_name,
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'parameters': heat_params,
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@ -222,10 +236,10 @@ class HeatDriver(driver.Driver):
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# Find what changed checking the stack params
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# against the ones in the template_def.
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stack = osc.heat().stacks.get(cluster.stack_id,
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stack = osc.heat().stacks.get(nodegroup.stack_id,
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resolve_outputs=True)
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stack_params = stack.parameters
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definition.add_nodegroup_params(cluster)
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definition.add_nodegroup_params(cluster, nodegroups=[nodegroup])
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heat_params = definition.get_stack_diff(context, stack_params, cluster)
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LOG.debug('Updating stack with these params: %s', heat_params)
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@ -241,10 +255,10 @@ class HeatDriver(driver.Driver):
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}
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osc = clients.OpenStackClients(context)
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osc.heat().stacks.update(cluster.stack_id, **fields)
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osc.heat().stacks.update(nodegroup.stack_id, **fields)
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def _delete_stack(self, context, osc, cluster):
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osc.heat().stacks.delete(cluster.stack_id)
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def _delete_stack(self, context, osc, stack_id):
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osc.heat().stacks.delete(stack_id)
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class HeatPoller(object):
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@ -260,39 +274,79 @@ class HeatPoller(object):
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def poll_and_check(self):
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# TODO(yuanying): temporary implementation to update api_address,
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# node_addresses and cluster status
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ng_statuses = list()
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for nodegroup in self.cluster.nodegroups:
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self.nodegroup = nodegroup
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status = self.extract_nodegroup_status()
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ng_statuses.append(status)
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self.aggregate_nodegroup_statuses(ng_statuses)
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def extract_nodegroup_status(self):
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try:
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# Do not resolve outputs by default. Resolving all
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# node IPs is expensive on heat.
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stack = self.openstack_client.heat().stacks.get(
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self.cluster.stack_id, resolve_outputs=False)
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self.nodegroup.stack_id, resolve_outputs=False)
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# poll_and_check is detached and polling long time to check
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# status, so another user/client can call delete cluster/stack.
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if stack.stack_status == fields.ClusterStatus.DELETE_COMPLETE:
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if self.nodegroup.is_default:
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if self.nodegroup.role == 'master':
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# Delete all cluster related info
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self._delete_complete()
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else:
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self.nodegroup.destroy()
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if stack.stack_status in (fields.ClusterStatus.CREATE_COMPLETE,
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fields.ClusterStatus.UPDATE_COMPLETE):
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# Resolve all outputs if the stack is COMPLETE
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stack = self.openstack_client.heat().stacks.get(
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self.nodegroup.stack_id, resolve_outputs=True)
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self._sync_cluster_and_template_status(stack)
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elif stack.stack_status != self.nodegroup.status:
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self.template_def.nodegroup_output_mappings = list()
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self.template_def.update_outputs(
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stack, self.cluster_template, self.cluster,
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nodegroups=[self.nodegroup])
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self._sync_cluster_status(stack)
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if stack.stack_status in (fields.ClusterStatus.CREATE_FAILED,
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fields.ClusterStatus.DELETE_FAILED,
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fields.ClusterStatus.UPDATE_FAILED,
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fields.ClusterStatus.ROLLBACK_COMPLETE,
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fields.ClusterStatus.ROLLBACK_FAILED):
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self._sync_cluster_and_template_status(stack)
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self._cluster_failed(stack)
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except heatexc.NotFound:
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self._sync_missing_heat_stack()
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return
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return NodeGroupStatus(status=self.nodegroup.status,
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is_default=self.nodegroup.is_default,
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reason=self.nodegroup.status_reason)
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# poll_and_check is detached and polling long time to check status,
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# so another user/client can call delete cluster/stack.
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if stack.stack_status == fields.ClusterStatus.DELETE_COMPLETE:
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self._delete_complete()
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def aggregate_nodegroup_statuses(self, ng_statuses):
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# NOTE(ttsiouts): Aggregate the nodegroup statuses and set the
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# cluster overall status.
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FAIL = '_FAILED'
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IN_PROGRESS = '_IN_PROGRESS'
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COMPLETE = '_COMPLETE'
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if stack.stack_status in (fields.ClusterStatus.CREATE_COMPLETE,
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fields.ClusterStatus.UPDATE_COMPLETE):
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# Resolve all outputs if the stack is COMPLETE
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stack = self.openstack_client.heat().stacks.get(
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self.cluster.stack_id, resolve_outputs=True)
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self._sync_cluster_and_template_status(stack)
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elif stack.stack_status != self.cluster.status:
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self.template_def.update_outputs(stack, self.cluster_template,
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self.cluster)
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self._sync_cluster_status(stack)
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if stack.stack_status in (fields.ClusterStatus.CREATE_FAILED,
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fields.ClusterStatus.DELETE_FAILED,
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fields.ClusterStatus.UPDATE_FAILED,
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fields.ClusterStatus.ROLLBACK_COMPLETE,
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fields.ClusterStatus.ROLLBACK_FAILED):
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self._sync_cluster_and_template_status(stack)
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self._cluster_failed(stack)
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CREATE = 'CREATE'
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DELETE = 'DELETE'
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UPDATE = 'UPDATE'
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# Keep priority to the states below
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for state in (IN_PROGRESS, FAIL, COMPLETE):
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if any(ns.status.endswith(state) for ns in ng_statuses):
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status = getattr(fields.ClusterStatus, UPDATE+state)
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self.cluster.status = status
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for action in (CREATE, DELETE):
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if all(ns.status == action+state
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for ns in ng_statuses if ns.is_default):
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status = getattr(fields.ClusterStatus, action+state)
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self.cluster.status = status
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break
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self.cluster.save()
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def _delete_complete(self):
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LOG.info('Cluster has been deleted, stack_id: %s',
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self.cluster.uuid)
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def _sync_cluster_status(self, stack):
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self.cluster.status = stack.stack_status
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self.cluster.status_reason = stack.stack_status_reason
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self.cluster.save()
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self.nodegroup.status = stack.stack_status
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self.nodegroup.status_reason = stack.stack_status_reason
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self.nodegroup.save()
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def get_version_info(self, stack):
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stack_param = self.template_def.get_heat_param(
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self.cluster.container_version = container_version
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def _sync_cluster_and_template_status(self, stack):
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self.template_def.nodegroup_output_mappings = list()
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self.template_def.update_outputs(stack, self.cluster_template,
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self.cluster)
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self.cluster,
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nodegroups=[self.nodegroup])
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self.get_version_info(stack)
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self._sync_cluster_status(stack)
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def _sync_missing_heat_stack(self):
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if self.cluster.status == fields.ClusterStatus.DELETE_IN_PROGRESS:
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self._delete_complete()
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if self.nodegroup.is_default and self.nodegroup.role == 'master':
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self._delete_complete()
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elif self.cluster.status == fields.ClusterStatus.CREATE_IN_PROGRESS:
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self._sync_missing_stack(fields.ClusterStatus.CREATE_FAILED)
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elif self.cluster.status == fields.ClusterStatus.UPDATE_IN_PROGRESS:
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self._sync_missing_stack(fields.ClusterStatus.UPDATE_FAILED)
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def _sync_missing_stack(self, new_status):
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self.cluster.status = new_status
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self.cluster.status_reason = _("Stack with id %s not found in "
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"Heat.") % self.cluster.stack_id
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self.cluster.save()
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LOG.info("Cluster with id %(id)s has been set to "
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self.nodegroup.status = new_status
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self.nodegroup.status_reason = _("Stack with id %s not found in "
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"Heat.") % self.cluster.stack_id
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self.nodegroup.save()
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LOG.info("Nodegroup with id %(id)s has been set to "
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"%(status)s due to stack with id %(sid)s "
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"not found in Heat.",
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{'id': self.cluster.id, 'status': self.cluster.status,
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'sid': self.cluster.stack_id})
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{'id': self.nodegroup.uuid, 'status': self.nodegroup.status,
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'sid': self.nodegroup.stack_id})
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@ -12,13 +12,20 @@
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# License for the specific language governing permissions and limitations
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# under the License.
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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 pbr.version import SemanticVersion as SV
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from string import ascii_letters
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from string import digits
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from heatclient.common import template_utils
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from magnum.common import clients
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from magnum.common import exception
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from magnum.common import keystone
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from magnum.common import octavia
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from magnum.common import short_id
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from magnum.drivers.common import k8s_monitor
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from magnum.drivers.heat import driver
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from magnum.drivers.k8s_fedora_atomic_v1 import template_def
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'disable_rollback': not rollback
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}
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osc.heat().stacks.update(cluster.stack_id, **fields)
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def create_nodegroup(self, context, cluster, nodegroup):
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osc = clients.OpenStackClients(context)
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template_path, stack_params, env_files = (
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self._extract_template_definition(context, cluster,
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nodegroups=[nodegroup]))
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tpl_files, template = template_utils.get_template_contents(
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template_path)
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environment_files, env_map = self._get_env_files(template_path,
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env_files)
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tpl_files.update(env_map)
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# Make sure we end up with a valid hostname
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valid_chars = set(ascii_letters + digits + '-')
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# valid hostnames are 63 chars long, leaving enough room
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# to add the random id (for uniqueness)
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stack_name = "%s-%s" % (cluster.name[:20], nodegroup.name[:9])
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stack_name = stack_name.replace('_', '-')
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stack_name = stack_name.replace('.', '-')
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stack_name = ''.join(filter(valid_chars.__contains__, stack_name))
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# Make sure no duplicate stack name
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stack_name = '%s-%s' % (stack_name, short_id.generate_id())
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stack_name = stack_name.lower()
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if cluster.create_timeout:
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heat_timeout = cluster.create_timeout
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else:
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heat_timeout = cfg.CONF.cluster_heat.create_timeout
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stack_params['is_cluster_stack'] = False
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first_master = cluster.master_addresses[0]
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network = osc.heat().resources.get(cluster.stack_id, 'network')
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secgroup = osc.heat().resources.get(cluster.stack_id,
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'secgroup_kube_minion')
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stack_params['existing_master_private_ip'] = first_master
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stack_params['existing_security_group'] = secgroup.attributes['id']
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stack_params['fixed_network'] = network.attributes['fixed_network']
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stack_params['fixed_subnet'] = network.attributes['fixed_subnet']
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stack_params['trust_id'] = cluster.trust_id
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stack_params['trustee_password'] = cluster.trustee_password
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for label in nodegroup.labels:
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stack_params[label] = nodegroup.labels[label]
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fields = {
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'stack_name': stack_name,
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'parameters': stack_params,
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'environment_files': environment_files,
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'template': template,
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'files': tpl_files,
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'timeout_mins': heat_timeout
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}
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created_stack = osc.heat().stacks.create(**fields)
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nodegroup.stack_id = created_stack['stack']['id']
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return created_stack
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def delete_nodegroup(self, context, cluster, nodegroup):
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# Default nodegroups share stack_id so it will be deleted
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# as soon as the cluster gets destroyed
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if not nodegroup.stack_id:
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nodegroup.destroy()
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else:
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osc = clients.OpenStackClients(context)
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self._delete_stack(context, osc, nodegroup.stack_id)
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@ -1,12 +1,53 @@
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heat_template_version: 2014-10-16
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heat_template_version: queens
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description: >
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This template will boot a Kubernetes cluster with one or more
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minions (as specified by the number_of_minions parameter, which
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defaults to 1).
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conditions:
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master_only:
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or:
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- equals:
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- get_param: role
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- "master"
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- equals:
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- get_param: is_cluster_stack
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- true
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worker_only:
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or:
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- equals:
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- get_param: role
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- "worker"
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- equals:
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- get_param: is_cluster_stack
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- true
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create_cluster_resources:
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equals:
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- get_param: is_cluster_stack
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- true
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parameters:
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# needs to become a list if we want to join master nodes?
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existing_master_private_ip:
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type: string
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default: ""
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is_cluster_stack:
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type: boolean
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default: false
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role:
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type: string
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default: ""
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existing_security_group:
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type: string
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default: ""
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ssh_key_name:
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type: string
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description: name of ssh key to be provisioned on our server
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@ -33,10 +74,16 @@ parameters:
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master_image:
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type: string
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description: glance image used to boot the server
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# When creating a new minion nodegroup this will not
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# be provided by magnum. So make it default to ""
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default: ""
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minion_image:
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type: string
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description: glance image used to boot the server
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# When creating a new master nodegroup this will not
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# be provided by magnum. So make it default to ""
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default: ""
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master_flavor:
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type: string
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@ -660,6 +707,7 @@ resources:
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#
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network:
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condition: create_cluster_resources
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type: ../../common/templates/network.yaml
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properties:
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existing_network: {get_param: fixed_network}
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@ -670,6 +718,7 @@ resources:
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private_network_name: private
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api_lb:
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condition: create_cluster_resources
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type: ../../common/templates/lb_api.yaml
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properties:
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fixed_subnet: {get_attr: [network, fixed_subnet]}
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@ -678,6 +727,7 @@ resources:
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port: {get_param: kubernetes_port}
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etcd_lb:
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condition: create_cluster_resources
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type: ../../common/templates/lb_etcd.yaml
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properties:
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fixed_subnet: {get_attr: [network, fixed_subnet]}
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@ -691,6 +741,7 @@ resources:
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#
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secgroup_kube_master:
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condition: create_cluster_resources
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type: OS::Neutron::SecurityGroup
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properties:
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rules:
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|
@ -727,6 +778,7 @@ resources:
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port_range_max: 8472
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secgroup_kube_minion:
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condition: create_cluster_resources
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type: OS::Neutron::SecurityGroup
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properties:
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rules:
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@ -756,6 +808,7 @@ resources:
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# allow any traffic between worker nodes
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secgroup_rule_tcp_kube_minion:
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condition: create_cluster_resources
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type: OS::Neutron::SecurityGroupRule
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properties:
|
||||
protocol: tcp
|
||||
|
@ -764,6 +817,7 @@ resources:
|
|||
security_group: {get_resource: secgroup_kube_minion}
|
||||
remote_group: {get_resource: secgroup_kube_minion}
|
||||
secgroup_rule_udp_kube_minion:
|
||||
condition: create_cluster_resources
|
||||
type: OS::Neutron::SecurityGroupRule
|
||||
properties:
|
||||
protocol: udp
|
||||
|
@ -779,6 +833,7 @@ resources:
|
|||
#
|
||||
|
||||
api_address_lb_switch:
|
||||
condition: create_cluster_resources
|
||||
type: Magnum::ApiGatewaySwitcher
|
||||
properties:
|
||||
pool_public_ip: {get_attr: [api_lb, floating_address]}
|
||||
|
@ -787,6 +842,7 @@ resources:
|
|||
master_private_ip: {get_attr: [kube_masters, resource.0.kube_master_ip]}
|
||||
|
||||
etcd_address_lb_switch:
|
||||
condition: create_cluster_resources
|
||||
type: Magnum::ApiGatewaySwitcher
|
||||
properties:
|
||||
pool_private_ip: {get_attr: [etcd_lb, address]}
|
||||
|
@ -799,6 +855,7 @@ resources:
|
|||
#
|
||||
|
||||
api_address_floating_switch:
|
||||
condition: create_cluster_resources
|
||||
type: Magnum::FloatingIPAddressSwitcher
|
||||
properties:
|
||||
public_ip: {get_attr: [api_address_lb_switch, public_ip]}
|
||||
|
@ -811,11 +868,13 @@ resources:
|
|||
#
|
||||
|
||||
master_nodes_server_group:
|
||||
condition: master_only
|
||||
type: OS::Nova::ServerGroup
|
||||
properties:
|
||||
policies: [{get_param: nodes_affinity_policy}]
|
||||
|
||||
worker_nodes_server_group:
|
||||
condition: worker_only
|
||||
type: OS::Nova::ServerGroup
|
||||
properties:
|
||||
policies: [{get_param: nodes_affinity_policy}]
|
||||
|
@ -827,6 +886,7 @@ resources:
|
|||
#
|
||||
|
||||
kube_masters:
|
||||
condition: master_only
|
||||
type: OS::Heat::ResourceGroup
|
||||
depends_on:
|
||||
- network
|
||||
|
@ -943,6 +1003,7 @@ resources:
|
|||
max_node_count: {get_param: max_node_count}
|
||||
|
||||
kube_cluster_config:
|
||||
condition: create_cluster_resources
|
||||
type: OS::Heat::SoftwareConfig
|
||||
properties:
|
||||
group: script
|
||||
|
@ -985,6 +1046,7 @@ resources:
|
|||
- get_file: ../../common/templates/kubernetes/fragments/install-helm-modules.sh
|
||||
|
||||
kube_cluster_deploy:
|
||||
condition: create_cluster_resources
|
||||
type: OS::Heat::SoftwareDeployment
|
||||
properties:
|
||||
actions: ['CREATE']
|
||||
|
@ -1002,6 +1064,7 @@ resources:
|
|||
#
|
||||
|
||||
kube_minions:
|
||||
condition: worker_only
|
||||
type: OS::Heat::ResourceGroup
|
||||
depends_on:
|
||||
- network
|
||||
|
@ -1021,12 +1084,32 @@ resources:
|
|||
ssh_key_name: {get_param: ssh_key_name}
|
||||
server_image: {get_param: minion_image}
|
||||
minion_flavor: {get_param: minion_flavor}
|
||||
fixed_network: {get_attr: [network, fixed_network]}
|
||||
fixed_subnet: {get_attr: [network, fixed_subnet]}
|
||||
# fixed_network: {get_param: fixed_network}
|
||||
fixed_network:
|
||||
if:
|
||||
- create_cluster_resources
|
||||
- get_attr: [network, fixed_network]
|
||||
- get_param: fixed_network
|
||||
# fixed_subnet: {get_param: fixed_subnet}
|
||||
fixed_subnet:
|
||||
if:
|
||||
- create_cluster_resources
|
||||
- get_attr: [network, fixed_subnet]
|
||||
- get_param: fixed_subnet
|
||||
network_driver: {get_param: network_driver}
|
||||
flannel_network_cidr: {get_param: flannel_network_cidr}
|
||||
kube_master_ip: {get_attr: [api_address_lb_switch, private_ip]}
|
||||
etcd_server_ip: {get_attr: [etcd_address_lb_switch, private_ip]}
|
||||
#kube_master_ip: {get_param: existing_master_private_ip}
|
||||
kube_master_ip:
|
||||
if:
|
||||
- create_cluster_resources
|
||||
- get_attr: [api_address_lb_switch, private_ip]
|
||||
- get_param: existing_master_private_ip
|
||||
#etcd_server_ip: {get_param: existing_master_private_ip}
|
||||
etcd_server_ip:
|
||||
if:
|
||||
- create_cluster_resources
|
||||
- get_attr: [etcd_address_lb_switch, private_ip]
|
||||
- get_param: existing_master_private_ip
|
||||
external_network: {get_param: external_network}
|
||||
kube_allow_priv: {get_param: kube_allow_priv}
|
||||
docker_volume_size: {get_param: docker_volume_size}
|
||||
|
@ -1050,7 +1133,12 @@ resources:
|
|||
kubernetes_port: {get_param: kubernetes_port}
|
||||
tls_disabled: {get_param: tls_disabled}
|
||||
verify_ca: {get_param: verify_ca}
|
||||
secgroup_kube_minion_id: {get_resource: secgroup_kube_minion}
|
||||
# secgroup_kube_minion_id: {get_param: existing_security_group}
|
||||
secgroup_kube_minion_id:
|
||||
if:
|
||||
- create_cluster_resources
|
||||
- get_resource: secgroup_kube_minion
|
||||
- get_param: existing_security_group
|
||||
http_proxy: {get_param: http_proxy}
|
||||
https_proxy: {get_param: https_proxy}
|
||||
no_proxy: {get_param: no_proxy}
|
||||
|
@ -1079,6 +1167,7 @@ resources:
|
|||
outputs:
|
||||
|
||||
api_address:
|
||||
condition: create_cluster_resources
|
||||
value:
|
||||
str_replace:
|
||||
template: api_ip_address
|
||||
|
@ -1089,6 +1178,7 @@ outputs:
|
|||
the Kubernetes API.
|
||||
|
||||
registry_address:
|
||||
condition: create_cluster_resources
|
||||
value:
|
||||
str_replace:
|
||||
template: localhost:port
|
||||
|
@ -1099,22 +1189,26 @@ outputs:
|
|||
images.
|
||||
|
||||
kube_masters_private:
|
||||
condition: master_only
|
||||
value: {get_attr: [kube_masters, kube_master_ip]}
|
||||
description: >
|
||||
This is a list of the "private" IP addresses of all the Kubernetes masters.
|
||||
|
||||
kube_masters:
|
||||
condition: master_only
|
||||
value: {get_attr: [kube_masters, kube_master_external_ip]}
|
||||
description: >
|
||||
This is a list of the "public" IP addresses of all the Kubernetes masters.
|
||||
Use these IP addresses to log in to the Kubernetes masters via ssh.
|
||||
|
||||
kube_minions_private:
|
||||
condition: worker_only
|
||||
value: {get_attr: [kube_minions, kube_minion_ip]}
|
||||
description: >
|
||||
This is a list of the "private" IP addresses of all the Kubernetes minions.
|
||||
|
||||
kube_minions:
|
||||
condition: worker_only
|
||||
value: {get_attr: [kube_minions, kube_minion_external_ip]}
|
||||
description: >
|
||||
This is a list of the "public" IP addresses of all the Kubernetes minions.
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
heat_template_version: 2014-10-16
|
||||
heat_template_version: queens
|
||||
|
||||
description: >
|
||||
This is a nested stack that defines a single Kubernetes master, This stack is
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
heat_template_version: 2014-10-16
|
||||
heat_template_version: queens
|
||||
|
||||
description: >
|
||||
This is a nested stack that defines a single Kubernetes minion, This stack is
|
||||
|
|
|
@ -164,7 +164,9 @@ class MagnumPeriodicTasks(periodic_task.PeriodicTasks):
|
|||
objects.fields.ClusterStatus.DELETE_IN_PROGRESS,
|
||||
objects.fields.ClusterStatus.ROLLBACK_IN_PROGRESS]
|
||||
filters = {'status': status}
|
||||
clusters = objects.Cluster.list(ctx, filters=filters)
|
||||
nodegroups = objects.NodeGroup.list(ctx, filters=filters)
|
||||
cluster_ids = set(ng.cluster_id for ng in nodegroups)
|
||||
clusters = [objects.Cluster.get(ctx, cid) for cid in cluster_ids]
|
||||
if not clusters:
|
||||
return
|
||||
|
||||
|
|
Loading…
Reference in New Issue