def get_topology(): # noqa: E501
"""Return a topology with lists of node names and link ids
# noqa: E501
:rtype: Topology
"""
topology = Topology()
topology.nodes = [node["id"] for node in topo.get("nodes")]
topology.links = [link["id"] for link in topo.get("links")]
return topology
def get_link(id): # noqa: E501
"""get a link
# noqa: E501
:param id: The id of the link
:type id: str
:rtype: Link
"""
raw_links = topo.get("links")
if raw_links is None:
abort(404)
for link in raw_links:
if str(link["id"]) == id:
return Link(
id=link["id"],
node1_id=link["node1_id"],
node2_id=link["node2_id"],
delay_us=link["delay_us"],
max_bw_mbps=link["max_bw_mbps"]
)
abort(404)
def get_link_between_nodes(node1_id, node2_id): # noqa: E501
"""get detailed information of a link between two specific nodes
# noqa: E501
:param node1_id: The id of the first node in the link
:type node1_id: str
:param node2_id: The id of the second node in the link
:type node2_id: str
:rtype: Link
"""
raw_links = topo.get("links")
if raw_links is None:
abort(404)
for link in raw_links:
if ((str(link["node1_id"]) == node1_id and str(link["node2_id"]) == node2_id) or
(str(link["node1_id"]) == node2_id and str(link["node2_id"]) == node1_id)
):
return Link(
id=link["id"],
node1_id=node1_id,
node2_id=node2_id,
delay_us=link["delay_us"],
max_bw_mbps=link["max_bw_mbps"]
)
abort(404)
def get_nodes(): # noqa: E501
"""get a list of nodes
# noqa: E501
:rtype: List[Node]
"""
raw_nodes = openstack_client.get_compute_data("/os-hypervisors/detail")
# node_names = [raw_node["hypervisor_hostname"] for raw_node in raw_nodes.get("hypervisors")]
raw_nodes = raw_nodes.get("hypervisors")
if raw_nodes is None:
abort(404)
nodes = []
# for node_name in node_names:
# nodes.append(get_node(node_name))
for topo_node in topo.get("nodes"):
ip = None
n_cores = None
ram_mb = None
n_cores_free = None
ram_free_mb = None
status = None
core_freq_mhz = topo_node.get("core_freq_MHz")
ram_freq_mhz = topo_node.get("ram_freq_MHz")
if topo_node["type"] == "compute":
for raw_node in raw_nodes:
if topo_node["id"] == raw_node["hypervisor_hostname"]:
ip=raw_node["host_ip"]
n_cores=raw_node["vcpus"]
ram_mb=raw_node["memory_mb"]
status=raw_node["status"]
n_cores_free=raw_node["vcpus"] - raw_node["vcpus_used"]
ram_free_mb=raw_node["free_ram_mb"]
break
node = Node(
# in some case, we need to use compute node name,
# thus we use node name (hostname) as the node id
id=topo_node["id"],
name=topo_node["id"],
type=topo_node["type"],
ip=ip,
n_cores=n_cores,
core_freq_mhz=core_freq_mhz,
ram_mb=ram_mb,
ram_freq_mhz=ram_freq_mhz,
status=status,
n_cores_free=n_cores_free,
ram_free_mb=ram_free_mb,
)
nodes.append(node)
return nodes
def get_links(): # noqa: E501
"""get list of link
# noqa: E501
:rtype: List[Link]
"""
raw_links = topo.get("links")
if raw_links is None:
return None
links = []
for link in raw_links:
links.append(
Link(
id=link["id"],
node1_id=link["node1_id"],
node2_id=link["node2_id"],
delay_us=link["delay_us"],
max_bw_mbps=link["max_bw_mbps"]
)
)
return links