def _parse_pod_info(self, pods):
"""Parse pods and retrieve memory and cpu details about each pod
:param pods: The output of k8s_api.list_namespaced_pod()
For example:
{
'items': [{
'status': {
'container_statuses': None,
'pod_ip': None,
'phase': 'Pending',
'message': None,
'conditions': None,
},
'spec': {
'containers': [{
'image': 'nginx',
'resources': {'requests': None,
'limits': "{u'cpu': u'500m',
u'memory': u'1280e3'}"},
}],
},
'api_version': None,
}],
'kind': 'PodList',
}
The above output is the dict form of:
k8sclient.client.models.v1_pod_list.
V1PodList object
:return: Memory size of each pod. Example:
[{'Memory': 1280000.0, cpu: 0.5},
{'Memory': 1280000.0, cpu: 0.5}]
"""
pods = pods.items
parsed_containers = []
for pod in pods:
containers = pod.spec.containers
for container in containers:
memory = 0
cpu = 0
resources = container.resources
limits = resources.limits
if limits is not None:
# Output of resources.limits is string
# for example:
# limits = "{cpu': '500m': 'memory': '1000Ki'}"
limits = ast.literal_eval(limits)
if limits.get('memory', ''):
memory = utils.get_k8s_quantity(limits['memory'])
if limits.get('cpu', ''):
cpu = utils.get_k8s_quantity(limits['cpu'])
container_dict = {
'Memory': memory,
'Cpu': cpu,
}
parsed_containers.append(container_dict)
return parsed_containers
def _parse_pod_info(self, pods):
"""Parse pods and retrieve memory and cpu details about each pod
:param pods: The output of k8s_api.list_namespaced_pod()
For example:
{
'items': [{
'status': {
'container_statuses': None,
'pod_ip': None,
'phase': 'Pending',
'message': None,
'conditions': None,
},
'spec': {
'containers': [{
'image': 'nginx',
'resources': {'requests': None,
'limits': "{u'cpu': u'500m',
u'memory': u'1280e3'}"},
}],
},
'api_version': None,
}],
'kind': 'PodList',
}
The above output is the dict form of:
k8sclient.client.models.v1_pod_list.
V1PodList object
:return: Memory size of each pod. Example:
[{'Memory': 1280000.0, cpu: 0.5},
{'Memory': 1280000.0, cpu: 0.5}]
"""
pods = pods.items
parsed_containers = []
for pod in pods:
containers = pod.spec.containers
for container in containers:
memory = 0
cpu = 0
resources = container.resources
limits = resources.limits
if limits is not None:
# Output of resources.limits is string
# for example:
# limits = "{cpu': '500m': 'memory': '1000Ki'}"
limits = ast.literal_eval(limits)
if limits.get('memory', ''):
memory = utils.get_k8s_quantity(limits['memory'])
if limits.get('cpu', ''):
cpu = utils.get_k8s_quantity(limits['cpu'])
container_dict = {
'Memory': memory,
'Cpu': cpu,
}
parsed_containers.append(container_dict)
return parsed_containers
def test_get_k8s_quantity(self):
self.assertEqual(1024000.0, utils.get_k8s_quantity('1000Ki'))
self.assertEqual(0.001, utils.get_k8s_quantity('1E-3'))
self.assertEqual(0.5, utils.get_k8s_quantity('0.0005k'))
self.assertEqual(0.5, utils.get_k8s_quantity('500m'))
self.assertEqual(1300000.0, utils.get_k8s_quantity('1.3E+6'))
self.assertEqual(1300000.0, utils.get_k8s_quantity('1.3E6'))
self.assertRaises(exception.UnsupportedK8sQuantityFormat,
utils.get_k8s_quantity, '1E1E')
def test_get_k8s_quantity(self):
self.assertEqual(1024000.0, utils.get_k8s_quantity('1000Ki'))
self.assertEqual(0.001, utils.get_k8s_quantity('1E-3'))
self.assertEqual(0.5, utils.get_k8s_quantity('0.0005k'))
self.assertEqual(0.5, utils.get_k8s_quantity('500m'))
self.assertEqual(1300000.0, utils.get_k8s_quantity('1.3E+6'))
self.assertEqual(1300000.0, utils.get_k8s_quantity('1.3E6'))
self.assertRaises(exception.UnsupportedK8sQuantityFormat,
utils.get_k8s_quantity, '1E1E')
def _parse_node_info(self, nodes):
"""Parse nodes to retrieve memory and cpu of each node
:param nodes: The output of k8s_api.list_namespaced_node()
For example:
{
'items': [{
'status': {
'phase': None,
'capacity': "{u'cpu': u'1',
u'memory': u'2049852Ki'}",
},
},
'api_version': None,
}],
'kind': 'NodeList',
'api_version': 'v1',
}
The above output is the dict form of:
k8sclient.client.models.v1_node_list.
V1NodeList object
:return: CPU core number and Memory size of each node. Example:
[{'cpu': 1, 'Memory': 1024.0},
{'cpu': 1, 'Memory': 1024.0}]
"""
nodes = nodes.items
parsed_nodes = []
for node in nodes:
# Output of node.status.capacity is strong
# for example:
# capacity = "{'cpu': '1', 'memory': '1000Ki'}"
capacity = ast.literal_eval(node.status.capacity)
memory = utils.get_k8s_quantity(capacity['memory'])
cpu = int(capacity['cpu'])
parsed_nodes.append({'Memory': memory, 'Cpu': cpu})
return parsed_nodes
