def test_map_gke_preemptible_node():
node = Node(
None,
{
"metadata": {
"labels": {
"beta.kubernetes.io/instance-type": "1-standard-2",
"cloud.google.com/gke-preemptible": "true",
}
},
"status": {},
},
)
assert map_node(node) == {
"capacity": {},
"allocatable": {},
"usage": {
"cpu": 0,
"memory": 0
},
"requests": {
"cpu": 0,
"memory": 0
},
"cost": 0,
"instance_type": "1-standard-2-preemptible",
"kubelet_version": "",
"role": "worker",
"spot": True,
}
def test_map_empty_node():
node = Node(None, {"metadata": {}, "status": {}})
assert map_node(node) == {
"capacity": {},
"allocatable": {},
"usage": {
"cpu": 0,
"memory": 0
},
"requests": {
"cpu": 0,
"memory": 0
},
"cost": 0,
"instance_type": "unknown",
"kubelet_version": "",
"role": "worker",
"spot": False,
}
def _get_kubernetes_pod_cidr(self):
"""
Attempt to get the Kubernetes pod CIDR for this node.
First check if we've written it to disk. If so, use that value. If
not, then query the Kubernetes API for it.
"""
_log.info("Getting node.spec.podCidr from API, kubeconfig: %s",
self.kubeconfig_path)
if not self.kubeconfig_path:
# For now, kubeconfig is the only supported auth method.
print_cni_error(
ERR_CODE_GENERIC, "Missing kubeconfig",
"usePodCidr requires specification of kubeconfig file")
sys.exit(ERR_CODE_GENERIC)
# Query the API for this node. Default node name to the hostname.
try:
api = HTTPClient(KubeConfig.from_file(self.kubeconfig_path))
node = None
for n in Node.objects(api):
_log.debug("Checking node: %s", n.obj["metadata"]["name"])
if n.obj["metadata"]["name"] == self.k8s_node_name:
node = n
break
if not node:
raise KeyError("Unable to find node in API: %s",
self.k8s_node_name)
_log.debug("Found node %s: %s: ", node.obj["metadata"]["name"],
node.obj["spec"])
except Exception:
print_cni_error(ERR_CODE_GENERIC, "Error querying Kubernetes API",
"Failed to get podCidr from Kubernetes API")
sys.exit(ERR_CODE_GENERIC)
else:
pod_cidr = node.obj["spec"].get("podCIDR")
if not pod_cidr:
print_cni_error(ERR_CODE_GENERIC, "Missing podCidr",
"No podCidr for node %s" % self.k8s_node_name)
sys.exit(ERR_CODE_GENERIC)
_log.debug("Using podCidr: %s", pod_cidr)
return pod_cidr
def _get_kubernetes_pod_cidr(self):
"""
Attempt to get the Kubernetes pod CIDR for this node.
First check if we've written it to disk. If so, use that value. If
not, then query the Kubernetes API for it.
"""
_log.info("Getting node.spec.podCidr from API, kubeconfig: %s",
self.kubeconfig_path)
if not self.kubeconfig_path:
# For now, kubeconfig is the only supported auth method.
print_cni_error(ERR_CODE_GENERIC, "Missing kubeconfig",
"usePodCidr requires specification of kubeconfig file")
sys.exit(ERR_CODE_GENERIC)
# Query the API for this node. Default node name to the hostname.
try:
api = HTTPClient(KubeConfig.from_file(self.kubeconfig_path))
node = None
for n in Node.objects(api):
_log.debug("Checking node: %s", n.obj["metadata"]["name"])
if n.obj["metadata"]["name"] == self.k8s_node_name:
node = n
break
if not node:
raise KeyError("Unable to find node in API: %s", self.k8s_node_name)
_log.debug("Found node %s: %s: ", node.obj["metadata"]["name"],
node.obj["spec"])
except Exception:
print_cni_error(ERR_CODE_GENERIC, "Error querying Kubernetes API",
"Failed to get podCidr from Kubernetes API")
sys.exit(ERR_CODE_GENERIC)
else:
pod_cidr = node.obj["spec"].get("podCIDR")
if not pod_cidr:
print_cni_error(ERR_CODE_GENERIC, "Missing podCidr",
"No podCidr for node %s" % self.k8s_node_name)
sys.exit(ERR_CODE_GENERIC)
_log.debug("Using podCidr: %s", pod_cidr)
return pod_cidr