Fourth Korean l10n work for release-1.15 (#16063)

* ko: update translation in reference/glossary/* (#15776)
* Update outdated files partly in dev-1.15-ko.4 (#15856)
* ko: update translation in tasks/debug-application-cluster/resource-metrics-pipeline (#15798)
* ko: translate setup/production-environment/tools/control-plane-flags (#15820)
* ko: translate user-guide-windows-containers (#15730)
* ko: update translation in reference/glossary/* (#15761)
* ko: Update outdated files partly in dev-1.15-ko.4 (#15790)
* ko: fix corrupt date in glossary/static-pod (#15911)
* ko: translate user-guide-windows-nodes (#15759)
* Translate /docs/concepts/configuration/overview/ in Korean (#15803)
* ko: translate setup/production-environment/tools/ha-topology (#15819)
* ko: translate tasks/administer-cluster/network-policy-provider (#15846)
* Translate tasks/inject-data-application/define-command-argument-container in Korea (#15933)
* ko: translate concepts/configuration/organize-cluster-access-kubeconfig (#15871)
* Translate working-with-objects/common-labels.md in Korean (#15832)
* Translate concepts/workloads/pods/disruptions.md in Korean (#15926)
* Translate tasks/access-application-cluster/web-ui/dashboard in Korean (#15852)
* Translate concepts/overview/working-with-objects/labels.md in Korean (#15831)
* ko: translate guestbook-logs-metrics-with-elk (#15894)
* ko: translate tasks/administer-cluster/highly-available-master (#15928)

Co-Authored-By: Yoon <learder@gmail.com>
Co-Authored-By: Eden <longlg88@naver.com>
Co-Authored-By: Yuk, Yongsu <ysyukr@gmail.com>
Co-Authored-By: June Yi <june.yi@samsung.com>
Co-Authored-By: Seokho Son <shsongist@gmail.com>
Co-Authored-By: Lawrence Kay <lkay9495@hotmail.com>
Co-Authored-By: alice_k106 <alice_k106@naver.com>
Co-Authored-By: Cheolgu Kim <lapee79@gmail.com>

content/ko/docs/tasks/administer-cluster/network-policy-provider/kube-router-network-policy.md

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+---
+reviewers:
+title: 네트워크 폴리시로 큐브 라우터(Kube-router) 사용하기
+content_template: templates/task
+weight: 30
+---
+
+{{% capture overview %}}
+이 페이지는 네트워크 폴리시(NetworkPolicy)로 [큐브 라우터(Kube-router)](https://github.com/cloudnativelabs/kube-router)를 사용하는 방법을 살펴본다.
+{{% /capture %}}
+
+{{% capture prerequisites %}}
+운영 중인 쿠버네티스 클러스터가 필요하다. 클러스터가 없다면, Kops, Bootkube, Kubeadm 등을 이용해서 클러스터를 생성할 수 있다.
+{{% /capture %}}
+
+{{% capture steps %}}
+## 큐브 라우터 애드온 설치하기
+큐브 라우터 애드온은 갱신된 모든 네트워크 폴리시 및 파드에 대해 쿠버네티스 API 서버를 감시하고, 정책에 따라 트래픽을 허용하거나 차단하도록 iptables 규칙와 ipset을 구성하는 네트워크 폴리시 컨트롤러와 함께 제공된다. 큐브 라우터 애드온을 설치하는 [큐브 라우터를 클러스터 인스톨러와 함께 사용하기](https://www.kube-router.io/docs/user-guide/#try-kube-router-with-cluster-installers) 안내서를 따라해 봅니다.
+{{% /capture %}}
+
+{{% capture whatsnext %}}
+큐브 라우터 애드온을 설치한 후에는, 쿠버네티스 네트워크 폴리시를 시도하기 위해 [네트워크 폴리시 선언하기](/docs/tasks/administer-cluster/declare-network-policy/)를 따라 할 수 있다.
+{{% /capture %}}
+
+