Files
authentik/authentik/outposts/controllers/kubernetes.py
Jens L 7158c9d2ea core: metrics v2 (#1370)
* outposts: add ldap metrics, move ping to 9100

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* outpost: add flow_executor metrics

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* use port 9300 for metrics, add core metrics port

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

* outposts/controllers/k8s: add service monitor creation support

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>
2021-09-09 15:52:24 +02:00

104 lines
4.3 KiB
Python

"""Kubernetes deployment controller"""
from io import StringIO
from typing import Type
from kubernetes.client.api_client import ApiClient
from kubernetes.client.exceptions import OpenApiException
from structlog.testing import capture_logs
from urllib3.exceptions import HTTPError
from yaml import dump_all
from authentik.outposts.controllers.base import BaseController, ControllerException
from authentik.outposts.controllers.k8s.base import KubernetesObjectReconciler
from authentik.outposts.controllers.k8s.deployment import DeploymentReconciler
from authentik.outposts.controllers.k8s.secret import SecretReconciler
from authentik.outposts.controllers.k8s.service import ServiceReconciler
from authentik.outposts.controllers.k8s.service_monitor import PrometheusServiceMonitorReconciler
from authentik.outposts.models import KubernetesServiceConnection, Outpost, ServiceConnectionInvalid
class KubernetesController(BaseController):
"""Manage deployment of outpost in kubernetes"""
reconcilers: dict[str, Type[KubernetesObjectReconciler]]
reconcile_order: list[str]
client: ApiClient
connection: KubernetesServiceConnection
def __init__(self, outpost: Outpost, connection: KubernetesServiceConnection) -> None:
super().__init__(outpost, connection)
self.client = connection.client()
self.reconcilers = {
"secret": SecretReconciler,
"deployment": DeploymentReconciler,
"service": ServiceReconciler,
"prometheus servicemonitor": PrometheusServiceMonitorReconciler,
}
self.reconcile_order = ["secret", "deployment", "service", "prometheus servicemonitor"]
def up(self):
try:
for reconcile_key in self.reconcile_order:
reconciler = self.reconcilers[reconcile_key](self)
reconciler.up()
except (OpenApiException, HTTPError, ServiceConnectionInvalid) as exc:
raise ControllerException(str(exc)) from exc
def up_with_logs(self) -> list[str]:
try:
all_logs = []
for reconcile_key in self.reconcile_order:
if reconcile_key in self.outpost.config.kubernetes_disabled_components:
all_logs += [f"{reconcile_key.title()}: Disabled"]
continue
with capture_logs() as logs:
reconciler = self.reconcilers[reconcile_key](self)
reconciler.up()
all_logs += [f"{reconcile_key.title()}: {x['event']}" for x in logs]
return all_logs
except (OpenApiException, HTTPError, ServiceConnectionInvalid) as exc:
raise ControllerException(str(exc)) from exc
def down(self):
try:
for reconcile_key in self.reconcile_order:
reconciler = self.reconcilers[reconcile_key](self)
self.logger.debug("Tearing down object", name=reconcile_key)
reconciler.down()
except (OpenApiException, HTTPError, ServiceConnectionInvalid) as exc:
raise ControllerException(str(exc)) from exc
def down_with_logs(self) -> list[str]:
try:
all_logs = []
for reconcile_key in self.reconcile_order:
if reconcile_key in self.outpost.config.kubernetes_disabled_components:
all_logs += [f"{reconcile_key.title()}: Disabled"]
continue
with capture_logs() as logs:
reconciler = self.reconcilers[reconcile_key](self)
reconciler.down()
all_logs += [f"{reconcile_key.title()}: {x['event']}" for x in logs]
return all_logs
except (OpenApiException, HTTPError, ServiceConnectionInvalid) as exc:
raise ControllerException(str(exc)) from exc
def get_static_deployment(self) -> str:
documents = []
for reconcile_key in self.reconcile_order:
reconciler = self.reconcilers[reconcile_key](self)
if reconciler.noop:
continue
documents.append(reconciler.get_reference_object().to_dict())
with StringIO() as _str:
dump_all(
documents,
stream=_str,
default_flow_style=False,
)
return _str.getvalue()