def make_ingress(name, routespec, target, labels, data):
"""
Returns an ingress, service, endpoint object that'll work for this service
"""
# move beta imports here,
# which are more sensitive to kubernetes version
# and will change when they move out of beta
# because of the API changes in 1.16, the import is tried conditionally
# to keep compatibility with older K8S versions
try:
from kubernetes.client.models import (
ExtensionsV1beta1Ingress,
ExtensionsV1beta1IngressSpec,
ExtensionsV1beta1IngressRule,
ExtensionsV1beta1HTTPIngressRuleValue,
ExtensionsV1beta1HTTPIngressPath,
ExtensionsV1beta1IngressBackend,
)
except ImportError:
from kubernetes.client.models import (
V1beta1Ingress as ExtensionsV1beta1Ingress, V1beta1IngressSpec as
ExtensionsV1beta1IngressSpec, V1beta1IngressRule as
ExtensionsV1beta1IngressRule, V1beta1HTTPIngressRuleValue as
ExtensionsV1beta1HTTPIngressRuleValue, V1beta1HTTPIngressPath as
ExtensionsV1beta1HTTPIngressPath, V1beta1IngressBackend as
ExtensionsV1beta1IngressBackend)
meta = V1ObjectMeta(
name=name,
annotations={
'hub.jupyter.org/proxy-data': json.dumps(data),
'hub.jupyter.org/proxy-routespec': routespec,
'hub.jupyter.org/proxy-target': target
},
labels=labels,
)
if routespec.startswith('/'):
host = None
path = routespec
else:
host, path = routespec.split('/', 1)
target_parts = urlparse(target)
target_ip = target_parts.hostname
target_port = target_parts.port
target_is_ip = re.match(r'^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$',
target_ip) is not None
# Make endpoint object
if target_is_ip:
endpoint = V1Endpoints(
kind='Endpoints',
metadata=meta,
subsets=[
V1EndpointSubset(addresses=[V1EndpointAddress(ip=target_ip)],
ports=[V1EndpointPort(port=target_port)])
])
else:
endpoint = None
# Make service object
if target_is_ip:
service = V1Service(kind='Service',
metadata=meta,
spec=V1ServiceSpec(type='ClusterIP',
external_name='',
ports=[
V1ServicePort(
port=target_port,
target_port=target_port)
]))
else:
service = V1Service(
kind='Service',
metadata=meta,
spec=V1ServiceSpec(
type='ExternalName',
external_name=target_ip,
cluster_ip='',
ports=[
V1ServicePort(port=target_port, target_port=target_port)
],
),
)
# Make Ingress object
ingress = ExtensionsV1beta1Ingress(
kind='Ingress',
metadata=meta,
spec=ExtensionsV1beta1IngressSpec(rules=[
ExtensionsV1beta1IngressRule(
host=host,
http=ExtensionsV1beta1HTTPIngressRuleValue(paths=[
ExtensionsV1beta1HTTPIngressPath(
path=path,
backend=ExtensionsV1beta1IngressBackend(
service_name=name, service_port=target_port))
]))
]))
return endpoint, service, ingress
def make_ingress(name,
routespec,
target,
data,
extra_ingress_annotations={},
tls_secret_name=None,
default_host=None):
"""
Returns an ingress, service, endpoint object that'll work for this service
"""
# move beta imports here,
# which are more sensitive to kubernetes version
# and will change when they move out of beta
from kubernetes.client.models import (
ExtensionsV1beta1Ingress, ExtensionsV1beta1IngressSpec,
ExtensionsV1beta1IngressRule, ExtensionsV1beta1HTTPIngressRuleValue,
ExtensionsV1beta1HTTPIngressPath, ExtensionsV1beta1IngressBackend,
ExtensionsV1beta1IngressTLS)
meta = V1ObjectMeta(name=name,
annotations={
'hub.jupyter.org/proxy-data': json.dumps(data),
'hub.jupyter.org/proxy-routespec': routespec,
'hub.jupyter.org/proxy-target': target
},
labels={
'heritage': 'jupyterhub',
'component': 'singleuser-server',
'hub.jupyter.org/proxy-route': 'true'
})
if routespec.startswith('/'):
host = default_host
path = routespec
else:
host, path = routespec.split('/', 1)
target_parts = urlparse(target)
target_ip = target_parts.hostname
target_port = target_parts.port
target_is_ip = re.match('^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$',
target_ip) is not None
# Make endpoint object
if target_is_ip:
endpoint = V1Endpoints(
kind='Endpoints',
metadata=meta,
subsets=[
V1EndpointSubset(addresses=[V1EndpointAddress(ip=target_ip)],
ports=[V1EndpointPort(port=target_port)])
])
else:
endpoint = None
# Make service object
if target_is_ip:
service = V1Service(kind='Service',
metadata=meta,
spec=V1ServiceSpec(type='ClusterIP',
external_name='',
ports=[
V1ServicePort(
port=target_port,
target_port=target_port)
]))
else:
service = V1Service(
kind='Service',
metadata=meta,
spec=V1ServiceSpec(
type='ExternalName',
external_name=target_ip,
cluster_ip='',
ports=[
V1ServicePort(port=target_port, target_port=target_port)
],
),
)
tls = []
if tls_secret_name:
tls = [
ExtensionsV1beta1IngressTLS(hosts=[host],
secret_name=tls_secret_name)
]
# Make Ingress object
ingress = ExtensionsV1beta1Ingress(
kind='Ingress',
metadata=V1ObjectMeta(name=meta.name,
annotations={
**extra_ingress_annotations,
**meta.annotations
},
labels=meta.labels),
spec=ExtensionsV1beta1IngressSpec(
tls=tls,
rules=[
ExtensionsV1beta1IngressRule(
host=host,
http=ExtensionsV1beta1HTTPIngressRuleValue(paths=[
ExtensionsV1beta1HTTPIngressPath(
path=path,
backend=ExtensionsV1beta1IngressBackend(
service_name=name, service_port=target_port))
]))
]))
return endpoint, service, ingress