outposts: create traefikmiddleware if forwardAuth is enabled
Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>
This commit is contained in:
Jens Langhammer
parent
241d790e69
commit
ea7f9f291f
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@ -42,7 +42,7 @@ class KubernetesObjectReconciler(Generic[T]):
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def __init__(self, controller: "KubernetesController"):
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self.controller = controller
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self.namespace = controller.outpost.config.kubernetes_namespace
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self.logger = get_logger()
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self.logger = get_logger().bind(type=self.__class__.__name__)
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@property
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def name(self) -> str:
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@ -79,7 +79,7 @@ class KubernetesObjectReconciler(Generic[T]):
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self.delete(current)
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else:
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self.logger.debug("No old found, creating")
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self.logger.debug("Created")
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self.logger.debug("Creating")
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self.create(reference)
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except NeedsUpdate:
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self.logger.debug("Updating")
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@ -0,0 +1,160 @@
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"""Kubernetes Traefik Middleware Reconciler"""
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from dataclasses import asdict, dataclass, field
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from typing import TYPE_CHECKING
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from dacite import from_dict
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from kubernetes.client import ApiextensionsV1Api, CustomObjectsApi
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from authentik.outposts.controllers.base import FIELD_MANAGER
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from authentik.outposts.controllers.k8s.base import (
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Disabled,
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KubernetesObjectReconciler,
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NeedsUpdate,
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)
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from authentik.providers.proxy.models import ProxyProvider
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if TYPE_CHECKING:
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from authentik.outposts.controllers.kubernetes import KubernetesController
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@dataclass
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class TraefikMiddlewareSpecForwardAuth:
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"""traefik middleware forwardAuth spec"""
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address: str
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# pylint: disable=invalid-name
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authResponseHeaders: list[str]
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# pylint: disable=invalid-name
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trustForwardHeader: bool
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@dataclass
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class TraefikMiddlewareSpec:
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"""Traefik middleware spec"""
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# pylint: disable=invalid-name
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forwardAuth: TraefikMiddlewareSpecForwardAuth
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@dataclass
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class TraefikMiddlewareMetadata:
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"""Traefik Middleware metadata"""
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name: str
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namespace: str
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labels: dict = field(default_factory=dict)
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@dataclass
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class TraefikMiddleware:
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"""Traefik Middleware"""
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# pylint: disable=invalid-name
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apiVersion: str
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kind: str
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metadata: TraefikMiddlewareMetadata
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spec: TraefikMiddlewareSpec
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CRD_NAME = "middlewares.traefik.containo.us"
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CRD_GROUP = "traefik.containo.us"
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CRD_VERSION = "v1alpha1"
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CRD_PLURAL = "middlewares"
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class TraefikMiddlewareReconciler(KubernetesObjectReconciler[TraefikMiddleware]):
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"""Kubernetes Traefik Middleware Reconciler"""
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def __init__(self, controller: "KubernetesController") -> None:
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super().__init__(controller)
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self.api_ex = ApiextensionsV1Api(controller.client)
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self.api = CustomObjectsApi(controller.client)
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def _crd_exists(self) -> bool:
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"""Check if the traefik middleware exists"""
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return bool(
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len(
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self.api_ex.list_custom_resource_definition(
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field_selector=f"metadata.name={CRD_NAME}"
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).items
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)
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)
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def reconcile(self, current: TraefikMiddleware, reference: TraefikMiddleware):
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super().reconcile(current, reference)
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if current.spec.forwardAuth.address != reference.spec.forwardAuth.address:
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raise NeedsUpdate()
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def get_reference_object(self) -> TraefikMiddleware:
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"""Get deployment object for outpost"""
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if not ProxyProvider.objects.filter(
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outpost__in=[self.controller.outpost],
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forward_auth_mode=True,
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).exists():
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raise Disabled()
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if not self._crd_exists():
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raise Disabled()
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return TraefikMiddleware(
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apiVersion=f"{CRD_GROUP}/{CRD_VERSION}",
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kind="Middleware",
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metadata=TraefikMiddlewareMetadata(
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name=self.name,
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namespace=self.namespace,
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labels=self.get_object_meta().labels,
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),
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spec=TraefikMiddlewareSpec(
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forwardAuth=TraefikMiddlewareSpecForwardAuth(
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address=f"http://{self.name}:4180/akprox/auth?traefik",
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authResponseHeaders=[
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"Set-Cookie",
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"X-Auth-Username",
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"X-Forwarded-Email",
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"X-Forwarded-Preferred-Username",
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"X-Forwarded-User",
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],
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trustForwardHeader=True,
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)
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),
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)
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def create(self, reference: TraefikMiddleware):
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return self.api.create_namespaced_custom_object(
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group=CRD_GROUP,
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version=CRD_VERSION,
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plural=CRD_PLURAL,
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namespace=self.namespace,
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body=asdict(reference),
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field_manager=FIELD_MANAGER,
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)
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def delete(self, reference: TraefikMiddleware):
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return self.api.delete_namespaced_custom_object(
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group=CRD_GROUP,
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version=CRD_VERSION,
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namespace=self.namespace,
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plural=CRD_PLURAL,
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name=self.name,
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)
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def retrieve(self) -> TraefikMiddleware:
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return from_dict(
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TraefikMiddleware,
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self.api.get_namespaced_custom_object(
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group=CRD_GROUP,
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version=CRD_VERSION,
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namespace=self.namespace,
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plural=CRD_PLURAL,
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name=self.name,
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),
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)
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def update(self, current: TraefikMiddleware, reference: TraefikMiddleware):
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return self.api.patch_namespaced_custom_object(
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group=CRD_GROUP,
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version=CRD_VERSION,
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namespace=self.namespace,
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plural=CRD_PLURAL,
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name=self.name,
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body=asdict(reference),
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field_manager=FIELD_MANAGER,
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)
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@ -3,6 +3,9 @@ from authentik.outposts.controllers.base import DeploymentPort
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from authentik.outposts.controllers.kubernetes import KubernetesController
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from authentik.outposts.models import KubernetesServiceConnection, Outpost
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from authentik.providers.proxy.controllers.k8s.ingress import IngressReconciler
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from authentik.providers.proxy.controllers.k8s.traefik import (
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TraefikMiddlewareReconciler,
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)
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class ProxyKubernetesController(KubernetesController):
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@ -15,4 +18,6 @@ class ProxyKubernetesController(KubernetesController):
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DeploymentPort(4443, "https", "tcp"),
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]
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self.reconcilers["ingress"] = IngressReconciler
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self.reconcilers["traefik_middleware"] = TraefikMiddlewareReconciler
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self.reconcile_order.append("ingress")
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self.reconcile_order.append("traefik_middleware")
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@ -10658,8 +10658,6 @@ paths:
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description: ''
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schema:
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$ref: '#/definitions/RedirectChallenge'
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'404':
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description: Token not found
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'400':
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description: Invalid input.
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schema:
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