def modify_deployment(nodes, previous_nodes, previous_node_instances,
modified_nodes, scaling_groups):
"""
modifies deployment according to the expected nodes. based on
previous_node_instances
:param nodes: the entire set of expected nodes.
:param previous_node_instances:
:param modified_nodes: existing nodes whose instance number has changed
Add a line note
:return: a dict of add,extended,reduced and removed instances
Add a line note
"""
plan_node_graph = rel_graph.build_node_graph(nodes=nodes,
scaling_groups=scaling_groups)
previous_plan_node_graph = rel_graph.build_node_graph(
nodes=previous_nodes, scaling_groups=scaling_groups)
previous_deployment_node_graph, previous_deployment_contained_graph = \
rel_graph.build_previous_deployment_node_graph(
plan_node_graph=previous_plan_node_graph,
previous_node_instances=previous_node_instances)
new_deployment_node_graph, ctx = rel_graph.build_deployment_node_graph(
plan_node_graph=plan_node_graph,
previous_deployment_node_graph=previous_deployment_node_graph,
previous_deployment_contained_graph=
previous_deployment_contained_graph, # noqa
modified_nodes=modified_nodes)
# Any node instances which were added or removed
added_and_related = rel_graph.extract_added_node_instances(
previous_deployment_node_graph, new_deployment_node_graph, ctx=ctx)
removed_and_related = rel_graph.extract_removed_node_instances(
previous_deployment_node_graph, new_deployment_node_graph, ctx=ctx)
# Any node instances which had a modification to their relationship.
# (newly introduced and removed nodes)
extended_and_related = rel_graph.extract_added_relationships(
previous_deployment_node_graph, new_deployment_node_graph, ctx=ctx)
reduced_and_related = rel_graph.extract_removed_relationships(
previous_deployment_node_graph, new_deployment_node_graph, ctx=ctx)
# The extracted extended and reduced relationships hold the new and old
# node instances. These are not required, since the change is on
# node instance level (and not the relationship level)
extended_and_related = \
filter_out_node_instances(added_and_related, extended_and_related)
reduced_and_related = \
filter_out_node_instances(removed_and_related, reduced_and_related)
return {
constants.ADDED_AND_RELATED: added_and_related,
constants.EXTENDED_AND_RELATED: extended_and_related,
constants.REDUCED_AND_RELATED: reduced_and_related,
constants.REMOVED_AND_RELATED: removed_and_related
}
def create_deployment_plan(plan):
"""
Expand node instances based on number of instances to deploy and
defined relationships
"""
plan_node_graph = rel_graph.build_node_graph(plan['nodes'])
deployment_node_graph = rel_graph.build_deployment_node_graph(
plan_node_graph)
node_instances = rel_graph.extract_node_instances(
node_instances_graph=deployment_node_graph)
deployment_plan = copy.deepcopy(plan)
deployment_plan[constants.NODE_INSTANCES] = node_instances
return models.Plan(deployment_plan)
def create_deployment_plan(plan):
"""
Expand node instances based on number of instances to deploy and
defined relationships
"""
plan_node_graph = rel_graph.build_node_graph(plan['nodes'])
deployment_node_graph = rel_graph.build_deployment_node_graph(
plan_node_graph)
node_instances = rel_graph.extract_node_instances(
node_instances_graph=deployment_node_graph)
deployment_plan = copy.deepcopy(plan)
deployment_plan[constants.NODE_INSTANCES] = node_instances
return models.Plan(deployment_plan)
def create_deployment_plan(plan, existing_ni_ids=None):
"""
Expand node instances based on number of instances to deploy and
defined relationships
"""
deployment_plan = copy.deepcopy(plan)
plan_node_graph = rel_graph.build_node_graph(
nodes=deployment_plan['nodes'],
scaling_groups=deployment_plan['scaling_groups'])
deployment_node_graph, ctx = rel_graph.build_deployment_node_graph(
plan_node_graph, existing_ni_ids=existing_ni_ids)
node_instances = rel_graph.extract_node_instances(
node_instances_graph=deployment_node_graph, ctx=ctx)
deployment_plan[constants.NODE_INSTANCES] = node_instances
return models.Plan(deployment_plan)
def modify_deployment(nodes, previous_node_instances, modified_nodes):
plan_node_graph = rel_graph.build_node_graph(nodes)
previous_deployment_node_graph = rel_graph.build_node_graph(
previous_node_instances)
new_deployment_node_graph = rel_graph.build_deployment_node_graph(
plan_node_graph, previous_deployment_node_graph, modified_nodes)
added_and_related = rel_graph.extract_added_node_instances(
previous_deployment_node_graph, new_deployment_node_graph)
removed_and_related = rel_graph.extract_removed_node_instances(
previous_deployment_node_graph, new_deployment_node_graph)
return {
'added_and_related': added_and_related,
'removed_and_related': removed_and_related
}
def modify_deployment(nodes, previous_node_instances, modified_nodes):
plan_node_graph = rel_graph.build_node_graph(nodes)
previous_deployment_node_graph = rel_graph.build_node_graph(
previous_node_instances)
new_deployment_node_graph = rel_graph.build_deployment_node_graph(
plan_node_graph,
previous_deployment_node_graph,
modified_nodes)
added_and_related = rel_graph.extract_added_node_instances(
previous_deployment_node_graph, new_deployment_node_graph)
removed_and_related = rel_graph.extract_removed_node_instances(
previous_deployment_node_graph, new_deployment_node_graph)
return {
'added_and_related': added_and_related,
'removed_and_related': removed_and_related
}
def modify_deployment(nodes,
previous_nodes,
previous_node_instances,
modified_nodes,
scaling_groups):
"""
modifies deployment according to the expected nodes. based on
previous_node_instances
:param nodes: the entire set of expected nodes.
:param previous_node_instances:
:param modified_nodes: existing nodes whose instance number has changed
Add a line note
:return: a dict of add,extended,reduced and removed instances
Add a line note
"""
plan_node_graph = rel_graph.build_node_graph(
nodes=nodes,
scaling_groups=scaling_groups)
previous_plan_node_graph = rel_graph.build_node_graph(
nodes=previous_nodes,
scaling_groups=scaling_groups)
previous_deployment_node_graph, previous_deployment_contained_graph = \
rel_graph.build_previous_deployment_node_graph(
plan_node_graph=previous_plan_node_graph,
previous_node_instances=previous_node_instances)
new_deployment_node_graph, ctx = rel_graph.build_deployment_node_graph(
plan_node_graph=plan_node_graph,
previous_deployment_node_graph=previous_deployment_node_graph,
previous_deployment_contained_graph=previous_deployment_contained_graph, # noqa
modified_nodes=modified_nodes)
# Any node instances which were added or removed
added_and_related = rel_graph.extract_added_node_instances(
previous_deployment_node_graph, new_deployment_node_graph,
ctx=ctx)
removed_and_related = rel_graph.extract_removed_node_instances(
previous_deployment_node_graph, new_deployment_node_graph,
ctx=ctx)
# Any node instances which had a modification to their relationship.
# (newly introduced and removed nodes)
extended_and_related = rel_graph.extract_added_relationships(
previous_deployment_node_graph, new_deployment_node_graph,
ctx=ctx)
reduced_and_related = rel_graph.extract_removed_relationships(
previous_deployment_node_graph, new_deployment_node_graph,
ctx=ctx)
# The extracted extended and reduced relationships hold the new and old
# node instances. These are not required, since the change is on
# node instance level (and not the relationship level)
extended_and_related = \
filter_out_node_instances(added_and_related, extended_and_related)
reduced_and_related = \
filter_out_node_instances(removed_and_related, reduced_and_related)
return {
'added_and_related': added_and_related,
'extended_and_related': extended_and_related,
'reduced_and_related': reduced_and_related,
'removed_and_related': removed_and_related
}