def scheduler(name, node, namespace="default"):
body = client.V1Binding()
target = client.V1ObjectReference()
target.kind = 'Node'
target.apiVersion = 'v1'
target.name = node
meta = client.V1ObjectMeta()
meta.name = name
body.target = target
body.metadata = meta
try:
# Method changed in clinet v6.0
# return v1.create_namespaced_binding(body, namespace)
# For v2.0
res = v1.create_namespaced_binding_binding(name, namespace, body)
if res:
# print 'POD '+name+' scheduled and placed on '+node
return True
except Exception as a:
print(
"Exception when calling CoreV1Api->create_namespaced_binding: %s\n"
% a)
return False
def scheduler(name, model, ns):
##
#Step 3 - Selecting a node
##
node = get_nodes(model)
logging.info("Putting {0} on {1} in namespace: {2}".format(name, node, ns))
#
#https://github.com/kubernetes-client/python/issues/547
#https://github.com/kubernetes-client/python/issues/547#issuecomment-455362558
##
target = client.V1ObjectReference()
target.kind = "Node"
target.apiVersion = "v1"
target.name = node
meta = client.V1ObjectMeta()
meta.name = name
body = client.V1Binding(target=target, metadata=meta)
##
#Step 4 - Bind the pod to a node
#Finished
##
return v1_api.create_namespaced_binding(namespace=ns, body=body)
def bind_to_node(self, pod_name, node_name, namespace='default'):
"""
Bind Pod to a Node
:param str pod_name: pod name which we are binding
:param str node_name: node name which pod has to be binded
:param str namespace: namespace of pod
:return: True if pod was bound successfully, False otherwise
"""
target = client.V1ObjectReference()
target.kind = "Node"
target.api_version = "v1"
target.name = node_name
meta = client.V1ObjectMeta()
meta.name = pod_name
body = client.V1Binding(target=target)
body.target = target
body.metadata = meta
try:
self.v1.create_namespaced_binding(namespace, body)
return True
except Exception as e:
"""
create_namespaced_binding() throws exception:
Invalid value for `target`, must not be `None`
or
despite the fact this exception is being thrown,
Pod is bound to a Node and Pod is running
"""
print('here')
print('exception' + str(e))
return False
def BindPodToNode(self, podname, node, ns):
""" Binds a pod to a node to start the deployment process. """
try:
target = client.V1ObjectReference()
target.kind = "Node"
target.apiVersion = "v1"
target.name = node
meta = client.V1ObjectMeta()
meta.name = podname
body = client.V1Binding(target=target, metadata=meta)
body.target = target
body.metadata = meta
return self.v1.create_namespaced_binding(namespace=ns, body=body)
except ApiException as e:
self.logger.error(
f'Failed to bind pod {podname} to node {node} in namespace {ns}: {e}'
)
return False
except ValueError as e:
# This is not a real error. It's a problem in the API waiting to be fixed:
# https://github.com/kubernetes-client/python/issues/547
pass
return True
def scheduler(name, node, namespace):
target=client.V1ObjectReference(api_version='v1', kind="Node", name=node)
meta=client.V1ObjectMeta()
meta.name=name
body=client.V1Binding(metadata=meta, target=target)
return core_api.create_namespaced_binding(namespace, body, _preload_content=False)
def schedule(name, node, namespace='default'):
target = client.V1ObjectReference(kind = 'Node', api_version = 'v1', name = node)
meta = client.V1ObjectMeta(name = name)
body = client.V1Binding(target = target, metadata = meta)
try:
client.CoreV1Api().create_namespaced_binding(namespace=namespace, body=body)
except ValueError:
print ("Exception")
def create_k8s_binding(name, node):
target = client.V1ObjectReference()
target.kind = "Node"
target.apiVersion = "v1"
target.name = node
meta = client.V1ObjectMeta()
meta.name = name
body = client.V1Binding(metadata=meta, target=target)
return body
def schedule_pod(cli, name):
target = client.V1ObjectReference()
target.kind = 'Node'
target.apiVersion = 'v1'
target.name = 'k3d-k3s-default-worker-1'
meta = client.V1ObjectMeta()
meta.name = name
body = client.V1Binding(metadata=meta, target=target)
return cli.create_namespaced_binding('default', body)
def scheduler(name, node, namespace='default'):
target = client.V1ObjectReference()
target.kind = 'Node'
target.apiVersion = 'corev1'
target.name = node
print('target', target)
meta = client.V1ObjectMeta()
meta.name = name
body = client.V1Binding(metadata=meta, target=target)
return corev1.create_namespaced_binding(namespace=namespace, body=body)
def schedule(self, name, node, namespace='default'):
'''Create a binding object to schedule the pod.'''
target = client.V1ObjectReference(kind='Node',
api_version='v1',
name=node)
meta = client.V1ObjectMeta(name=name)
body = client.V1Binding(target=target, metadata=meta)
self.api.create_namespaced_binding(namespace=namespace,
body=body,
_preload_content=False)
def scheduler(name, node, namespace="custom-scheduler"):
body = client.V1Binding()
target = client.V1ObjectReference()
target.kind = "Node"
target.apiVersion = "v1"
target.name = node
meta = client.V1ObjectMeta()
meta.name = name
body.target = target
body.metadata = meta
return v1.create_namespaced_binding(namespace, body)
def scheduler(name, node, namespace='default'):
body = client.V1Binding()
target = client.V1ObjectReference()
target.kind = 'Node'
target.apiVersion = 'v1'
target.name = node
meta = client.V1ObjectMeta()
meta.name = name
body.target = target
body.metadata = meta
return v1.create_namespaced_binding(name, namespace, body)
def scheduler(name, node, namespace="default"):
print(name)
print(node)
target=client.V1ObjectReference()
target.kind="Node"
target.apiVersion="v1"
target.name= node
meta=client.V1ObjectMeta()
meta.name=name
body=client.V1Binding(metadata=meta, target=target)
return v1.create_namespaced_binding(namespace, body)
def scheduler(name, node, namespace="default"):
target = client.V1ObjectReference(kind="Node", api_version="v1", name=node)
meta = client.V1ObjectMeta(name=name)
body = client.V1Binding(metadata=meta, target=target)
print("assign {} to {}".format(body.target.name, body.metadata.name))
res = None
try:
res = v1.create_namespaced_binding(namespace, body)
except client.rest.ApiException:
print('ValueError as Expected')
finally:
return res
def schedule_pod(pod_name, node_name):
body = client.V1Binding(target=client.V1ObjectReference(kind="Node",
api_version="v1",
name=node_name),
metadata=client.V1ObjectMeta(name=pod_name))
# From issue https://github.com/kubernetes-client/python/issues/547
try:
v1.create_namespaced_binding(namespace=namespace_name, body=body)
except ValueError:
pass
print("Scheduled {} into {}".format(pod_name, node_name))
def scheduler(name, node, namespace='default'):
target = client.V1ObjectReference()
target.kind = "Node"
target.api_version = "v1"
target.name = node
meta = client.V1ObjectMeta()
meta.name = name
body = client.V1Binding(metadata=meta, target=target)
body.target = target
body.metadata = meta
return v1.create_namespaced_binding(namespace, body)
def scheduler(name, node, namespace):
target=client.V1ObjectReference(api_version='v1', kind="Node", name=node)
#target.kind="Node"
#target.apiVersion="v1"
#target.name= node
#pprint(target)
meta=client.V1ObjectMeta()
meta.name=name
#pprint(meta)
body=client.V1Binding(metadata=meta, target=target)
#body.target=target
#body.metadata=meta
return apis_api.create_namespaced_binding(namespace, body, _preload_content=False)
def scheduler(t_name, t_node, t_namespace="default"):
target = client.V1ObjectReference()
target.kind = "Node"
target.apiVersion = "v1"
target.name = t_node
meta = client.V1ObjectMeta()
meta.name = t_name
body = client.V1Binding(target=target, metadata=meta)
return v1.create_namespaced_binding(namespace=t_namespace, body=body, _preload_content=False)
def scheduler(name, node, namespace='default'):
"""
Bind a pod to a node
:param name: pod name
:param node: node name
:param namespace: kubernetes namespace
:return:
"""
target = client.V1ObjectReference(kind = 'Node', api_version = 'v1', name = node)
meta = client.V1ObjectMeta(name = name)
body = client.V1Binding(target = target, metadata = meta)
try:
client.CoreV1Api().create_namespaced_binding(namespace=namespace, body=body)
except ValueError:
# PRINT SOMETHING or PASS
pass
def scheduler(name, node, namespace="default"):
#body = client.V1ConfigMap()
body = client.V1Binding()
target = client.V1ObjectReference()
target.kind = "Node"
target.apiVersion = "v1"
target.name = node
meta = client.V1ObjectMeta()
meta.name = name
body.target = target
body.metadata = meta
return v1.create_namespaced_binding(namespace,
body,
_preload_content=False)
def bind(self, pod, node, namespace="default"):
target = client.V1ObjectReference(api_version='v1',
kind='Node',
name=node)
meta = client.V1ObjectMeta()
meta.name = pod.metadata.name
body = client.V1Binding(target=target, metadata=meta)
try:
print("INFO Pod: %s placed on: %s\n" % (pod.metadata.name, node))
api_response = self.v1.create_namespaced_pod_binding(
name=pod.metadata.name, namespace=namespace, body=body)
print(api_response)
return api_response
except Exception as e:
print(
"Warning when calling CoreV1Api->create_namespaced_pod_binding: %s\n"
% e)
def place_pod_on_node(self, pod: Pod, node: Node):
# Update the internal state of the super class
super(KubeClusterContext, self).place_pod_on_node(pod, node)
# But also actually create the placmement in kubernetes
target = client.V1ObjectReference()
target.kind = ''
target.apiVersion = 'v1'
target.name = node.name
meta = client.V1ObjectMeta()
meta.name = pod.name
body = client.V1Binding(target=target, metadata=meta)
logging.info('Creating namespaced binding: Pod %s on Node %s',
pod.name, node.name)
try:
self.api.create_namespaced_binding(pod.namespace, body)
except ValueError:
# Due to a bug in the library, an error was thrown (but everything most likely worked fine).
# https://github.com/kubernetes-client/python/issues/547
pass
