{"id":3099,"date":"2025-04-26T10:58:00","date_gmt":"2025-04-26T07:58:00","guid":{"rendered":"https:\/\/www.bircloud.com\/cloud\/index.php\/2025\/04\/26\/kubernetes-cilium-ebpf-gelismis-ag-guvenlik\/"},"modified":"2026-03-07T17:25:46","modified_gmt":"2026-03-07T14:25:46","slug":"kubernetes-cilium-ebpf-gelismis-ag-guvenlik","status":"publish","type":"post","link":"https:\/\/www.bircloud.com\/cloud\/index.php\/2025\/04\/26\/kubernetes-cilium-ebpf-gelismis-ag-guvenlik\/","title":{"rendered":"Kubernetes&#8217;te Cilium ve eBPF ile Geli\u015fmi\u015f A\u011f ve G\u00fcvenlik Politikalar\u0131: BirCloud Uzmanl\u0131\u011f\u0131"},"content":{"rendered":"<p class=\"bircloud-reading-time\">\ud83d\udcd6 <strong>5 dakika<\/strong> okuma s\u00fcresi<\/p>\n<div class=\"bircloud-toc\">\n<h2>\ud83d\udccb \u0130\u00e7indekiler<\/h2>\n<ul>\n<li><a href=\"#section-1\">Giri\u015f<\/a><\/li>\n<li><a href=\"#section-2\">Cilium ve eBPF Nedir?<\/a><\/li>\n<li><a href=\"#section-3\">Cilium ve eBPF&#8217;nin Avantajlar\u0131<\/a><\/li>\n<li><a href=\"#section-4\">Kullan\u0131m Senaryolar\u0131<\/a><\/li>\n<li><a href=\"#section-5\">Kurulum ve Ba\u015flang\u0131\u00e7 Rehberi<\/a><\/li>\n<li><a href=\"#section-6\">BirCloud Perspektifi<\/a><\/li>\n<li><a href=\"#section-7\">Sonu\u00e7<\/a><\/li>\n<\/ul>\n<\/div>\n<h2 id=\"section-1\">Giri\u015f<\/h2>\n<p>Kubernetes, modern uygulama geli\u015ftirme ve da\u011f\u0131t\u0131m\u0131n\u0131n vazge\u00e7ilmez bir par\u00e7as\u0131 haline geldi. Ancak, karma\u015f\u0131k ve dinamik yap\u0131s\u0131, a\u011f ve g\u00fcvenlik y\u00f6netimini zorlu hale getirebilir. \u0130\u015fte tam bu noktada, Cilium ve eBPF (extended Berkeley Packet Filter) devreye girerek Kubernetes a\u011f ve g\u00fcvenlik politikalar\u0131nda devrim yarat\u0131yor. Bu yaz\u0131da, Cilium ve eBPF&#8217;nin ne oldu\u011funu, Kubernetes ortam\u0131n\u0131zda nas\u0131l kullanabilece\u011finizi ve BirCloud&#8217;un bu alandaki uzmanl\u0131\u011f\u0131n\u0131 detayl\u0131 bir \u015fekilde inceleyece\u011fiz.<\/p>\n<h2 id=\"section-2\">Cilium ve eBPF Nedir?<\/h2>\n<p><b>Cilium<\/b>, Kubernetes i\u00e7in a\u00e7\u0131k kaynakl\u0131 bir a\u011f ve g\u00fcvenlik \u00e7\u00f6z\u00fcm\u00fcd\u00fcr. Cilium, a\u011f politikalar\u0131n\u0131 uygulamak, hizmet ke\u015ffini y\u00f6netmek ve g\u00fcvenli\u011fi sa\u011flamak i\u00e7in eBPF teknolojisini kullan\u0131r. Geleneksel a\u011f \u00e7\u00f6z\u00fcmlerine k\u0131yasla daha h\u0131zl\u0131, daha verimli ve daha g\u00fcvenli bir yakla\u015f\u0131m sunar.<\/p>\n<p><b>eBPF<\/b>, Linux \u00e7ekirde\u011finde \u00e7al\u0131\u015fan g\u00fc\u00e7l\u00fc bir teknolojidir. A\u011f trafi\u011fini analiz etmek, g\u00fcvenlik politikalar\u0131n\u0131 uygulamak ve sistem performans\u0131n\u0131 izlemek gibi \u00e7e\u015fitli g\u00f6revler i\u00e7in kullan\u0131labilir. eBPF, kullan\u0131c\u0131 uzay\u0131nda \u00e7al\u0131\u015fan uygulamalar\u0131n \u00e7ekirdek d\u00fczeyinde olaylara tepki vermesini sa\u011flar, bu da performanstan \u00f6d\u00fcn vermeden derinlemesine g\u00f6zlemlenebilirlik ve kontrol imkan\u0131 sunar. <a href=\"https:\/\/www.bircloud.com\/cloud\/index.php\/2025\/10\/05\/cloud-native-ebpf-gozlemlenebilirlik-guvenlik\/\">Cloud Native Uygulamalar \u0130\u00e7in eBPF ile G\u00f6zlemlenebilirlik ve G\u00fcvenli\u011fin Gelece\u011fi<\/a> ba\u015fl\u0131kl\u0131 yaz\u0131m\u0131zda eBPF&#8217;nin bulut yerel uygulamalardaki \u00f6nemini daha detayl\u0131 inceleyebilirsiniz.<\/p>\n<h2 id=\"section-3\">Cilium ve eBPF&#8217;nin Avantajlar\u0131<\/h2>\n<ul>\n<li><b>Y\u00fcksek Performans:<\/b> eBPF, \u00e7ekirdek d\u00fczeyinde \u00e7al\u0131\u015ft\u0131\u011f\u0131 i\u00e7in a\u011f politikalar\u0131n\u0131 geleneksel \u00e7\u00f6z\u00fcmlere g\u00f6re \u00e7ok daha h\u0131zl\u0131 uygular. Bu, daha d\u00fc\u015f\u00fck gecikme s\u00fcreleri ve daha y\u00fcksek verimlilik anlam\u0131na gelir.<\/li>\n<li><b>Geli\u015fmi\u015f G\u00fcvenlik:<\/b> Cilium, katman 7 (uygulama katman\u0131) d\u00fczeyinde g\u00fcvenlik politikalar\u0131 uygulayabilir. Bu, HTTP, gRPC ve Kafka gibi protokoller i\u00e7in daha ayr\u0131nt\u0131l\u0131 g\u00fcvenlik kontrolleri sa\u011flar. \u00d6rne\u011fin, belirli bir HTTP ba\u015fl\u0131\u011f\u0131na sahip istekleri engelleyebilir veya belirli bir Kafka konusuna eri\u015fimi k\u0131s\u0131tlayabilirsiniz.<\/li>\n<li><b>G\u00f6zlemlenebilirlik:<\/b> eBPF, a\u011f trafi\u011fi hakk\u0131nda zengin veriler sa\u011flar. Bu veriler, a\u011f performans\u0131n\u0131 izlemek, sorunlar\u0131 gidermek ve g\u00fcvenlik ihlallerini tespit etmek i\u00e7in kullan\u0131labilir. <a href=\"https:\/\/www.bircloud.com\/cloud\/index.php\/2025\/10\/30\/cloud-native-gozlemlenebilirlik-ebpf\/\">Cloud Native G\u00f6zlemlenebilirlik: eBPF ile Uygulamalar\u0131n\u0131z\u0131 Derinlemesine \u0130zleyin<\/a> yaz\u0131m\u0131zda bu konuya daha detayl\u0131 de\u011finmi\u015ftik.<\/li>\n<li><b>Entegrasyon Kolayl\u0131\u011f\u0131:<\/b> Cilium, Kubernetes ile sorunsuz bir \u015fekilde entegre olur. Kubernetes API&#8217;lerini kullanarak a\u011f politikalar\u0131n\u0131 tan\u0131mlayabilir ve y\u00f6netebilirsiniz.<\/li>\n<li><b>A\u00e7\u0131k Kaynak:<\/b> Cilium, a\u00e7\u0131k kaynakl\u0131 bir projedir. Bu, topluluk deste\u011finden yararlanabilece\u011finiz ve ihtiya\u00e7lar\u0131n\u0131za g\u00f6re \u00f6zelle\u015ftirebilece\u011finiz anlam\u0131na gelir.<\/li>\n<\/ul>\n<h2 id=\"section-4\">Kullan\u0131m Senaryolar\u0131<\/h2>\n<ul>\n<li><b>Mikroservis G\u00fcvenli\u011fi:<\/b> Mikroservis mimarilerinde, servisler aras\u0131ndaki ileti\u015fimi g\u00fcvenli hale getirmek \u00f6nemlidir. Cilium, servisler aras\u0131ndaki trafi\u011fi \u015fifreleyebilir, yetkilendirme politikalar\u0131 uygulayabilir ve k\u00f6t\u00fc niyetli trafi\u011fi engelleyebilir.<\/li>\n<li><b>A\u011f Politikas\u0131 Uygulama:<\/b> Cilium, Kubernetes a\u011f politikalar\u0131n\u0131 daha ayr\u0131nt\u0131l\u0131 bir \u015fekilde uygulaman\u0131za olanak tan\u0131r. \u00d6rne\u011fin, belirli bir namespace&#8217;teki pod&#8217;lar\u0131n yaln\u0131zca belirli bir IP adresine eri\u015fmesine izin verebilirsiniz.<\/li>\n<li><b>Hizmet Ke\u015ffi:<\/b> Cilium, Kubernetes hizmetlerini otomatik olarak ke\u015ffeder ve y\u00fck dengeleme sa\u011flar. Bu, uygulamalar\u0131n\u0131z\u0131n her zaman kullan\u0131labilir olmas\u0131n\u0131 sa\u011flar.<\/li>\n<li><b>A\u011f \u0130zleme ve Analiz:<\/b> eBPF, a\u011f trafi\u011fi hakk\u0131nda zengin veriler sa\u011flar. Bu veriler, a\u011f performans\u0131n\u0131 izlemek, sorunlar\u0131 gidermek ve g\u00fcvenlik ihlallerini tespit etmek i\u00e7in kullan\u0131labilir. <a href=\"https:\/\/www.bircloud.com\/cloud\/index.php\/2025\/09\/16\/kubernetes-ag-politikalarinda-cilium-ebpf-gelismis-guvenlik\/\">Kubernetes A\u011f Politikalar\u0131nda Cilium ve eBPF ile Geli\u015fmi\u015f G\u00fcvenlik: BirCloud Uzmanl\u0131\u011f\u0131<\/a> yaz\u0131m\u0131zda bu konuyu detayl\u0131ca ele ald\u0131k.<\/li>\n<li><b>G\u00fcvenlik Duvar\u0131 (Firewall) Olarak Kullan\u0131m:<\/b> Cilium, eBPF&#8217;nin g\u00fcc\u00fc sayesinde geleneksel g\u00fcvenlik duvarlar\u0131n\u0131n yerini alabilir. Uygulama katman\u0131nda (Layer 7) g\u00fcvenlik politikalar\u0131 uygulayarak, daha karma\u015f\u0131k ve hedefli sald\u0131r\u0131lara kar\u015f\u0131 koruma sa\u011flayabilir.<\/li>\n<\/ul>\n<h2 id=\"section-5\">Kurulum ve Ba\u015flang\u0131\u00e7 Rehberi<\/h2>\n<p>Cilium&#8217;u Kubernetes k\u00fcmenize kurmak i\u00e7in a\u015fa\u011f\u0131daki ad\u0131mlar\u0131 izleyebilirsiniz:<\/p>\n<ol>\n<li><b>Cilium CLI&#8217;y\u0131 \u0130ndirin:<\/b> Cilium CLI&#8217;y\u0131 (Command Line Interface) bilgisayar\u0131n\u0131za indirin ve kurun.<\/li>\n<li><b>Kubernetes K\u00fcmenize Ba\u011flan\u0131n:<\/b> `kubectl` arac\u0131n\u0131 kullanarak Kubernetes k\u00fcmenize ba\u011flan\u0131n.<\/li>\n<li><b>Cilium&#8217;u Kurun:<\/b> A\u015fa\u011f\u0131daki komutu kullanarak Cilium&#8217;u k\u00fcmenize kurun:\n<pre><code class=\"language-bash\">\ncilium install\n    <\/code><\/pre>\n<\/li>\n<li><b>Cilium Durumunu Kontrol Edin:<\/b> Cilium&#8217;un ba\u015far\u0131yla kuruldu\u011funu do\u011frulamak i\u00e7in a\u015fa\u011f\u0131daki komutu kullan\u0131n:\n<pre><code class=\"language-bash\">\ncilium status\n    <\/code><\/pre>\n<\/li>\n<\/ol>\n<p>Cilium kurulduktan sonra, a\u011f politikalar\u0131 tan\u0131mlamaya ba\u015flayabilirsiniz. \u00d6rne\u011fin, a\u015fa\u011f\u0131daki YAML dosyas\u0131, `frontend` namespace&#8217;indeki pod&#8217;lar\u0131n yaln\u0131zca `backend` namespace&#8217;indeki pod&#8217;lara eri\u015fmesine izin veren bir a\u011f politikas\u0131 tan\u0131mlar:<\/p>\n<pre><code class=\"language-yaml\">\napiVersion: networking.k8s.io\/v1\nkind: NetworkPolicy\nmetadata:\n  name: frontend-to-backend\n  namespace: frontend\nspec:\n  podSelector:\n    matchLabels:\n      app: frontend\n  policyTypes:\n  - Egress\n  egress:\n  - to:\n    - podSelector:\n        matchLabels:\n          app: backend\n      namespaceSelector:\n        matchLabels:\n          name: backend\n<\/code><\/pre>\n<p>Bu politikay\u0131 uygulamak i\u00e7in a\u015fa\u011f\u0131daki komutu kullan\u0131n:<\/p>\n<pre><code class=\"language-bash\">\nkubectl apply -f network-policy.yaml\n<\/code><\/pre>\n<h2 id=\"section-6\">BirCloud Perspektifi<\/h2>\n<p>BirCloud olarak, m\u00fc\u015fterilerimize en iyi bulut \u00e7\u00f6z\u00fcmlerini sunmaya odaklan\u0131yoruz. Kubernetes a\u011f ve g\u00fcvenlik politikalar\u0131n\u0131 optimize etmek i\u00e7in Cilium ve eBPF&#8217;yi \u015fiddetle tavsiye ediyoruz. Uzman ekibimiz, Cilium&#8217;u Kubernetes ortam\u0131n\u0131za entegre etmenize, a\u011f politikalar\u0131 tan\u0131mlaman\u0131za ve g\u00fcvenli\u011fi sa\u011flaman\u0131za yard\u0131mc\u0131 olabilir.<\/p>\n<p>Ayr\u0131ca, BirCloud olarak <a href=\"https:\/\/www.bircloud.com\/cloud\/index.php\/2026\/02\/03\/modern-savunmanin-temeli-isletmenizi-birsiem-ile-nasil-guclendirirsiniz\/\">Modern Savunman\u0131n Temeli: \u0130\u015fletmenizi BirSIEM ile Nas\u0131l G\u00fc\u00e7lendirirsiniz?<\/a> ba\u015fl\u0131kl\u0131 yaz\u0131m\u0131zda bahsetti\u011fimiz SIEM \u00e7\u00f6z\u00fcmleriyle Cilium ve eBPF&#8217;den elde edilen verileri entegre ederek, g\u00fcvenlik olaylar\u0131na kar\u015f\u0131 daha h\u0131zl\u0131 ve etkili bir \u015fekilde yan\u0131t verilmesini sa\u011fl\u0131yoruz.<\/p>\n<h2 id=\"section-7\">Sonu\u00e7<\/h2>\n<p>Cilium ve eBPF, Kubernetes a\u011f ve g\u00fcvenlik politikalar\u0131nda devrim yaratan g\u00fc\u00e7l\u00fc teknolojilerdir. Y\u00fcksek performans, geli\u015fmi\u015f g\u00fcvenlik, g\u00f6zlemlenebilirlik ve entegrasyon kolayl\u0131\u011f\u0131 gibi avantajlar\u0131 sayesinde, Kubernetes ortam\u0131n\u0131z\u0131 daha g\u00fcvenli ve verimli hale getirebilirsiniz. BirCloud olarak, Cilium ve eBPF konusunda uzmanl\u0131\u011f\u0131m\u0131zla size yard\u0131mc\u0131 olmaktan mutluluk duyar\u0131z. Kubernetes ortam\u0131n\u0131zda Cilium ve eBPF&#8217;yi kullanarak a\u011f ve g\u00fcvenlik politikalar\u0131n\u0131z\u0131 g\u00fc\u00e7lendirmek i\u00e7in bizimle ileti\u015fime ge\u00e7in.<\/p>\n<div class=\"bircloud-faq\">\n<h2>\u2753 S\u0131k Sorulan Sorular<\/h2>\n<div class=\"faq-item\">\n<h3>Cilium nedir?<\/h3>\n<p>Cilium, Kubernetes i\u00e7in a\u00e7\u0131k kaynakl\u0131 bir a\u011f ve g\u00fcvenlik \u00e7\u00f6z\u00fcm\u00fcd\u00fcr. eBPF teknolojisini kullanarak a\u011f politikalar\u0131n\u0131 uygular, hizmet ke\u015ffini y\u00f6netir ve g\u00fcvenli\u011fi sa\u011flar.<\/p>\n<\/div>\n<div class=\"faq-item\">\n<h3>eBPF nedir?<\/h3>\n<p>eBPF (extended Berkeley Packet Filter), Linux \u00e7ekirde\u011finde \u00e7al\u0131\u015fan g\u00fc\u00e7l\u00fc bir teknolojidir. A\u011f trafi\u011fini analiz etmek, g\u00fcvenlik politikalar\u0131n\u0131 uygulamak ve sistem performans\u0131n\u0131 izlemek gibi \u00e7e\u015fitli g\u00f6revler i\u00e7in kullan\u0131labilir.<\/p>\n<\/div>\n<div class=\"faq-item\">\n<h3>Cilium&#039;un avantajlar\u0131 nelerdir?<\/h3>\n<p>Cilium&#039;un avantajlar\u0131 aras\u0131nda y\u00fcksek performans, geli\u015fmi\u015f g\u00fcvenlik, g\u00f6zlemlenebilirlik, entegrasyon kolayl\u0131\u011f\u0131 ve a\u00e7\u0131k kaynak olmas\u0131 yer al\u0131r.<\/p>\n<\/div>\n<div class=\"faq-item\">\n<h3>Cilium hangi kullan\u0131m senaryolar\u0131nda etkilidir?<\/h3>\n<p>Cilium, mikroservis g\u00fcvenli\u011fi, a\u011f politikas\u0131 uygulama, hizmet ke\u015ffi, a\u011f izleme ve analiz gibi \u00e7e\u015fitli kullan\u0131m senaryolar\u0131nda etkilidir.<\/p>\n<\/div>\n<div class=\"faq-item\">\n<h3>BirCloud Cilium konusunda nas\u0131l yard\u0131mc\u0131 olabilir?<\/h3>\n<p>BirCloud, Cilium&#039;u Kubernetes ortam\u0131n\u0131za entegre etmenize, a\u011f politikalar\u0131 tan\u0131mlaman\u0131za ve g\u00fcvenli\u011fi sa\u011flaman\u0131za yard\u0131mc\u0131 olabilir. Uzman ekibimiz, size en iyi bulut \u00e7\u00f6z\u00fcmlerini sunmaya odaklanm\u0131\u015ft\u0131r.<\/p>\n<\/div>\n<\/div>\n<div class=\"bircloud-related-posts\">\n<h2>\ud83d\udcda \u0130lgili Yaz\u0131lar<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.bircloud.com\/cloud\/index.php\/2025\/01\/26\/keda-kubernetes-etkinlik-odakli-otomatik-olceklendirme\/\">KEDA ile Kubernetes&#039;te Etkinlik Odakl\u0131 Otomatik \u00d6l\u00e7eklendirme: Derinlemesine \u0130nceleme ve En \u0130yi Uygulamalar<\/a><\/li>\n<li><a href=\"https:\/\/www.bircloud.com\/cloud\/index.php\/2025\/03\/16\/kubernetes-ebpf-gelismis-ag-izleme-guvenlik-derinlemesine-analiz\/\">Kubernetes&#039;te eBPF ile Geli\u015fmi\u015f A\u011f \u0130zleme ve G\u00fcvenlik: Derinlemesine Analiz ve Uygulama<\/a><\/li>\n<li><a href=\"https:\/\/www.bircloud.com\/cloud\/index.php\/2025\/09\/17\/gitops-argo-cd-flux-v2-karsilastirmasi\/\">GitOps ile Altyap\u0131 Y\u00f6netimi: Argo CD ve Flux v2&#039;nin Evrimi<\/a><\/li>\n<li><a href=\"https:\/\/www.bircloud.com\/cloud\/index.php\/2025\/12\/31\/linkerd-lightweight-service-mesh\/\">Linkerd ile Lightweight Service Mesh: Kubernetes Ortam\u0131n\u0131z \u0130\u00e7in \u0130deal \u00c7\u00f6z\u00fcm<\/a><\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Kubernetes a\u011f ve g\u00fcvenlik politikalar\u0131n\u0131 Cilium ve eBPF ile nas\u0131l optimize edece\u011finizi, avantajlar\u0131n\u0131, kullan\u0131m senaryolar\u0131n\u0131 ve BirCloud&#8217;un uzmanl\u0131\u011f\u0131n\u0131 ke\u015ffedin.<\/p>\n","protected":false},"author":1,"featured_media":3098,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[160],"tags":[275,159,165,191,279,161,164,155,181],"class_list":["post-3099","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bulut-bilisim","tag-ag-politikalari","tag-bircloud","tag-bulut-bilisim","tag-cilium","tag-container","tag-ebpf","tag-guvenlik","tag-kubernetes","tag-mikroservis"],"_links":{"self":[{"href":"https:\/\/www.bircloud.com\/cloud\/index.php\/wp-json\/wp\/v2\/posts\/3099","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bircloud.com\/cloud\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bircloud.com\/cloud\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bircloud.com\/cloud\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bircloud.com\/cloud\/index.php\/wp-json\/wp\/v2\/comments?post=3099"}],"version-history":[{"count":1,"href":"https:\/\/www.bircloud.com\/cloud\/index.php\/wp-json\/wp\/v2\/posts\/3099\/revisions"}],"predecessor-version":[{"id":3100,"href":"https:\/\/www.bircloud.com\/cloud\/index.php\/wp-json\/wp\/v2\/posts\/3099\/revisions\/3100"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bircloud.com\/cloud\/index.php\/wp-json\/wp\/v2\/media\/3098"}],"wp:attachment":[{"href":"https:\/\/www.bircloud.com\/cloud\/index.php\/wp-json\/wp\/v2\/media?parent=3099"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bircloud.com\/cloud\/index.php\/wp-json\/wp\/v2\/categories?post=3099"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bircloud.com\/cloud\/index.php\/wp-json\/wp\/v2\/tags?post=3099"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}