providers/proxy: revert to static list of forwarded headers
wildcard is not usable for this since the regular expression doesn't support negative lookahead, meaning we would always forward all headers, including Connection and others closes #1969 Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>
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@ -92,8 +92,6 @@ class IngressReconciler(KubernetesObjectReconciler[V1Ingress]):
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# Buffer sizes for large headers with JWTs
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"nginx.ingress.kubernetes.io/proxy-buffers-number": "4",
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"nginx.ingress.kubernetes.io/proxy-buffer-size": "16k",
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# Ensure ingress can receive TLS traffic
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"traefik.ingress.kubernetes.io/router.tls": "true",
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}
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annotations.update(self.controller.outpost.config.kubernetes_ingress_annotations)
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return annotations
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@ -101,6 +101,11 @@ class TraefikMiddlewareReconciler(KubernetesObjectReconciler[TraefikMiddleware])
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!= reference.spec.forwardAuth.authResponseHeadersRegex
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):
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raise NeedsUpdate()
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# Ensure all of our headers are set, others can be added by the user.
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if not set(current.spec.forwardAuth.authResponseHeaders).issubset(
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reference.spec.forwardAuth.authResponseHeaders
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):
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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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@ -115,8 +120,27 @@ class TraefikMiddlewareReconciler(KubernetesObjectReconciler[TraefikMiddleware])
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spec=TraefikMiddlewareSpec(
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forwardAuth=TraefikMiddlewareSpecForwardAuth(
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address=f"http://{self.name}.{self.namespace}:9000/akprox/auth/traefik",
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authResponseHeaders=[],
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authResponseHeadersRegex="^(Auth|Remote|X|Set).*$",
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authResponseHeaders=[
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# Legacy headers, remove after 2022.1
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"X-Auth-Username",
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"X-Auth-Groups",
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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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# New headers, unique prefix
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"X-authentik-username",
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"X-authentik-groups",
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"X-authentik-email",
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"X-authentik-name",
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"X-authentik-uid",
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"X-authentik-jwt",
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"X-authentik-meta-jwks",
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"X-authentik-meta-outpost",
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"X-authentik-meta-provider",
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"X-authentik-meta-app",
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"X-authentik-meta-version",
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],
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authResponseHeadersRegex="",
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trustForwardHeader=True,
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)
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),
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