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docs: Clean up prerequisites for the Ingress Controller #27222

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docs: Clean up prerequisites for the Ingress Controller #27222

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15 changes: 9 additions & 6 deletions Documentation/network/servicemesh/ingress.rst
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Kubernetes Ingress Support
**************************

Cilium uses the standard Kubernetes Ingress resource definition, with
Cilium uses the standard `Kubernetes Ingress`_ resource definition, with
an ``ingressClassName`` of ``cilium``. This can be used for path-based
routing and for TLS termination. For backwards compatibility, the
``kubernetes.io/ingress.class`` annotation with value of ``cilium``
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This is a step-by-step guide on how to enable the Ingress Controller in
an existing K8s cluster with Cilium installed.

.. _Kubernetes Ingress: https://kubernetes.io/docs/concepts/services-networking/ingress/

Prerequisites
#############

* Cilium must be configured with ``kubeProxyReplacement`` as partial
or strict. Please refer to :ref:`kube-proxy replacement <kubeproxy-free>`
for more details.
* Cilium must be configured with the L7 proxy enabled using the ``--enable-l7-proxy`` flag (enabled by default).
* The minimum supported Kubernetes version for Ingress is 1.19.
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* Cilium must be configured with NodePort enabled, using
``nodePort.enabled=true`` or by enabling the kube-proxy replacement with
``kubeProxyReplacement=true``. For more information, see :ref:`kube-proxy
replacement <kubeproxy-free>`.
* Cilium must be configured with the L7 proxy enabled using ``l7Proxy=true``
(enabled by default).

.. include:: installation.rst

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