{"id":14898,"date":"2025-03-11T21:47:28","date_gmt":"2025-03-11T18:47:28","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/calico-ag-politikasi-guvenli-kubernetes-kumelerini-saglama\/"},"modified":"2025-03-11T21:47:28","modified_gmt":"2025-03-11T18:47:28","slug":"calico-ag-politikasi-guvenli-kubernetes-kumelerini-saglama","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/calico-ag-politikasi-guvenli-kubernetes-kumelerini-saglama\/","title":{"rendered":"Calico A\u011f Politikas\u0131: G\u00fcvenli Kubernetes K\u00fcmelerini Sa\u011flama"},"content":{"rendered":"<p><body><\/p>\n<p>Calico A\u011f Politikas\u0131: G\u00fcvenli Kubernetes K\u00fcmelerini Sa\u011flama<\/p>\n<p>Kubernetes, modern uygulamalar\u0131n da\u011f\u0131t\u0131m\u0131 i\u00e7in g\u00fc\u00e7l\u00fc bir ara\u00e7t\u0131r, ancak g\u00fcvenlik a\u00e7\u0131klar\u0131 her zaman bir endi\u015fe kayna\u011f\u0131 olmu\u015ftur.  Bu konuda,  Calico a\u011f politikas\u0131 devreye girer. Calico, Kubernetes k\u00fcmelerindeki podlar aras\u0131ndaki ileti\u015fimi kontrol etmek i\u00e7in g\u00fc\u00e7l\u00fc bir \u00e7\u00f6z\u00fcm sunar.  Bu makalede, Calico a\u011f politikas\u0131n\u0131n ne oldu\u011funu, nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 ve Kubernetes k\u00fcmenizi g\u00fcvence alt\u0131na almak i\u00e7in nas\u0131l kullanabilece\u011finizi detayl\u0131 olarak ele alaca\u011f\u0131z.  \u00d6ncelikle, g\u00fcvenlik konusunun \u00f6nemini vurgulamakta fayda var.  Zira,  k\u00f6t\u00fc ama\u00e7l\u0131 yaz\u0131l\u0131mlar\u0131n yay\u0131lmas\u0131n\u0131 engellemek i\u00e7in  etkin bir a\u011f g\u00fcvenli\u011fi stratejisi  elzemdir. <\/p>\n<p>Kubernetes&#8217;te, podlar varsay\u0131lan olarak birbirleriyle ileti\u015fim kurabilirler. Bu durum,  g\u00fcvenlik a\u00e7\u0131s\u0131ndan risklidir.  \u00d6rne\u011fin,  bir pod sald\u0131r\u0131ya u\u011frarsa,  sald\u0131rgan a\u011fdaki di\u011fer podlara da eri\u015febilir.  \u0130\u015fte bu noktada Calico a\u011f politikas\u0131 devreye girerek, podlar aras\u0131 ileti\u015fimi kontrol alt\u0131na al\u0131r ve  sadece yetkili podlar\u0131n birbirleriyle ileti\u015fim kurmas\u0131n\u0131 sa\u011flar.  B\u00f6ylece,  sisteminizin g\u00fcvenli\u011fini \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131r\u0131rs\u0131n\u0131z.  Basit\u00e7e s\u00f6ylemek gerekirse, Calico a\u011f politikas\u0131,  bir g\u00fcvenlik duvar\u0131 gibi \u00e7al\u0131\u015f\u0131r ve  iste\u011fe ba\u011fl\u0131 olarak trafi\u011fi filtreler. <\/p>\n<h2>Calico A\u011f Politikas\u0131n\u0131n Temel \u00d6zellikleri<\/h2>\n<p>Calico a\u011f politikas\u0131,  y\u00fcksek esneklik ve  g\u00fcvenilirlik sunar.  Kubernetes&#8217;in yerle\u015fik a\u011f \u00e7\u00f6z\u00fcmlerine g\u00f6re  daha ince ayarl\u0131 bir kontrol sa\u011flar.  \u00d6rne\u011fin,  belirli podlar,  belirli portlar veya  protokoller \u00fczerindeki trafi\u011fi k\u0131s\u0131tlayabilirsiniz.  Ayr\u0131ca,  Calico a\u011f politikas\u0131  Kubernetes&#8217;in di\u011fer ara\u00e7lar\u0131yla  iyi entegre olur.  Yani,  var olan altyap\u0131n\u0131za kolayca entegre edebilirsiniz.  Bununla birlikte,  karma\u015f\u0131k konfig\u00fcrasyonlar  belirli bir teknik bilgi gerektirebilir.  Ancak,  iyi bir d\u00f6k\u00fcmantasyon sayesinde bu s\u00fcre\u00e7 kolayla\u015ft\u0131r\u0131labilir.<\/p>\n<h2>Calico A\u011f Politikas\u0131 Kurulumu ve Yap\u0131land\u0131rmas\u0131<\/h2>\n<p>Calico a\u011f politikas\u0131n\u0131 kurmak ve yap\u0131land\u0131rmak,  Kubernetes k\u00fcmenizdeki  kube-apiserver&#8217;a bir  Calico operat\u00f6r\u00fcn\u00fc kurmay\u0131 i\u00e7erir.  Ard\u0131ndan,  Kubernetes manifest dosyalar\u0131 arac\u0131l\u0131\u011f\u0131yla a\u011f politikalar\u0131n\u0131z\u0131 tan\u0131mlayabilirsiniz.  Bu dosyalar,  hangi podlar\u0131n birbirleriyle ileti\u015fim kurabilece\u011fini  belirtir.  \u00d6rne\u011fin,  a\u015fa\u011f\u0131daki kod blo\u011fu,  &#8220;app=web&#8221; etiketine sahip podlar\u0131n  sadece &#8220;app=db&#8221; etiketine sahip podlarla ileti\u015fim kurmas\u0131na izin verir:<\/p>\n<p><code><br \/>\napiVersion: networking.k8s.io\/v1<br \/>\nkind: NetworkPolicy<br \/>\nmetadata:<br \/>\n  name: web-to-db<br \/>\nspec:<br \/>\n  podSelector:<br \/>\n    matchLabels:<br \/>\n      app: web<br \/>\n  ingress:<br \/>\n  - from:<br \/>\n    - podSelector:<br \/>\n        matchLabels:<br \/>\n          app: db<br \/>\n<\/code><\/p>\n<p>Bu \u00f6rnek,  Calico a\u011f politikas\u0131n\u0131n  esnekli\u011fini ve kullan\u0131m kolayl\u0131\u011f\u0131n\u0131 g\u00f6stermektedir.  Daha karma\u015f\u0131k kurallar da  benzer \u015fekilde tan\u0131mlanabilir.  Ancak,  bu kurallar\u0131  dikkatlice olu\u015fturman\u0131z ve test etmeniz \u00f6nemlidir.  Yanl\u0131\u015f yap\u0131land\u0131rma,  ba\u011flant\u0131 sorunlar\u0131na neden olabilir.  Bu nedenle,  sisteminizin gereksinimlerine uygun bir politika olu\u015fturmak i\u00e7in  yeterli zaman ay\u0131rman\u0131z \u00f6nerilir.  Ayr\u0131ca,  de\u011fi\u015fiklikleri uygulamadan \u00f6nce  test ortam\u0131nda denemek her zaman iyi bir uygulamad\u0131r.<\/p>\n<h2>Calico A\u011f Politikas\u0131 ve G\u00fcvenlik<\/h2>\n<p>Calico,  Kubernetes g\u00fcvenli\u011finde \u00f6nemli bir rol oynar.  Podlar aras\u0131ndaki  yetkisiz eri\u015fimi engellemeye yard\u0131mc\u0131 olur.  Bu,  \u00f6zellikle  hassas verilerin i\u015flendi\u011fi  veya  kritik uygulamalar\u0131n \u00e7al\u0131\u015ft\u0131\u011f\u0131 ortamlarda \u00f6nemlidir.  G\u00fcvenlik a\u00e7\u0131s\u0131ndan,  Calico\u2019nun sa\u011flad\u0131\u011f\u0131  ince taneli kontrol,  riskleri azalt\u0131r ve g\u00fcvenli\u011fi art\u0131r\u0131r.  Ancak,  Calico tek ba\u015f\u0131na  t\u00fcm g\u00fcvenlik sorunlar\u0131n\u0131 \u00e7\u00f6zmez.  Di\u011fer g\u00fcvenlik \u00f6nlemleriyle birlikte kullan\u0131lmal\u0131d\u0131r.  \u00d6rne\u011fin,  resimlerin g\u00fcvenli bir \u015fekilde olu\u015fturulmas\u0131,  s\u0131k g\u00fcncellemeler ve  g\u00fc\u00e7l\u00fc \u015fifreler de  \u00f6nemlidir.  B\u00fct\u00fcnc\u00fcl bir g\u00fcvenlik stratejisi  etkin bir koruma sa\u011flar.<\/p>\n<p>Sonu\u00e7 olarak, Calico a\u011f politikas\u0131, Kubernetes k\u00fcmelerinde g\u00fcvenli\u011fi \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131ran g\u00fc\u00e7l\u00fc bir ara\u00e7t\u0131r.  Esnekli\u011fi, kullan\u0131m kolayl\u0131\u011f\u0131 ve Kubernetes ile  entegrasyonu,  onu  pop\u00fcler bir se\u00e7im haline getirir.  Ancak,  karma\u015f\u0131k yap\u0131land\u0131rmalara dikkat etmek ve  g\u00fcvenlik stratejisinin di\u011fer unsurlar\u0131yla  birlikte kullanmak \u00f6nemlidir. Daha fazla bilgi i\u00e7in <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a>  sitesini ziyaret edebilirsiniz.  Ayr\u0131ca,  konu ile ilgili daha fazla bilgi i\u00e7in <a href=\"https:\/\/dev.to\/alakkadshaw\/calico-network-policy-88\">bu ba\u011flant\u0131y\u0131<\/a> inceleyebilirsiniz.<\/p>\n<p>#Etiketler: Calico, A\u011f Politikas\u0131, Kubernetes, G\u00fcvenlik, Container, A\u011f G\u00fcvenli\u011fi, Kubernetes G\u00fcvenli\u011fi, G\u00fcvenlik Politikas\u0131, Network Policy, Calico Network Policy, Fatih Soysal<\/p>\n<p><\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"Calico A\u011f Politikas\u0131: G\u00fcvenli Kubernetes K\u00fcmelerini Sa\u011flama Kubernetes, modern uygulamalar\u0131n da\u011f\u0131t\u0131m\u0131 i\u00e7in g\u00fc\u00e7l\u00fc bir ara\u00e7t\u0131r, ancak g\u00fcvenlik a\u00e7\u0131klar\u0131&hellip;","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-14898","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Calico A\u011f Politikas\u0131: G\u00fcvenli Kubernetes K\u00fcmelerini Sa\u011flama<\/title>\n<meta name=\"description\" content=\"Kubernetes, modern uygulamalar\u0131n da\u011f\u0131t\u0131m\u0131 i\u00e7in g\u00fc\u00e7l\u00fc bir ara\u00e7t\u0131r, ancak g\u00fcvenlik a\u00e7\u0131klar\u0131 her zaman bir endi\u015fe kayna\u011f\u0131 olmu\u015ftur. Bu konuda, Calico a\u011f politikas\u0131 devreye girer. Calico, Kubernetes k\u00fcmelerindeki podlar aras\u0131ndaki ileti\u015fimi kontrol etmek i\u00e7in g\u00fc\u00e7l\u00fc bir \u00e7\u00f6z\u00fcm sunar. Bu makalede, Calico a\u011f politikas\u0131n\u0131n ne oldu\u011funu, nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 ve Kubernetes k\u00fcmenizi g\u00fcvence alt\u0131na almak i\u00e7in nas\u0131l kullanabilece\u011finizi detayl\u0131 olarak ele alaca\u011f\u0131z. \u00d6ncelikle, g\u00fcvenlik konusunun \u00f6nemini vurgulamakta fayda var. Zira, k\u00f6t\u00fc ama\u00e7l\u0131 yaz\u0131l\u0131mlar\u0131n yay\u0131lmas\u0131n\u0131 engellemek i\u00e7in etkin bir a\u011f g\u00fcvenli\u011fi stratejisi elzemdir.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/calico-ag-politikasi-guvenli-kubernetes-kumelerini-saglama\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Calico A\u011f Politikas\u0131: G\u00fcvenli Kubernetes K\u00fcmelerini Sa\u011flama\" \/>\n<meta property=\"og:description\" content=\"Kubernetes, modern uygulamalar\u0131n da\u011f\u0131t\u0131m\u0131 i\u00e7in g\u00fc\u00e7l\u00fc bir ara\u00e7t\u0131r, ancak g\u00fcvenlik a\u00e7\u0131klar\u0131 her zaman bir endi\u015fe kayna\u011f\u0131 olmu\u015ftur. Bu konuda, Calico a\u011f politikas\u0131 devreye girer. Calico, Kubernetes k\u00fcmelerindeki podlar aras\u0131ndaki ileti\u015fimi kontrol etmek i\u00e7in g\u00fc\u00e7l\u00fc bir \u00e7\u00f6z\u00fcm sunar. Bu makalede, Calico a\u011f politikas\u0131n\u0131n ne oldu\u011funu, nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 ve Kubernetes k\u00fcmenizi g\u00fcvence alt\u0131na almak i\u00e7in nas\u0131l kullanabilece\u011finizi detayl\u0131 olarak ele alaca\u011f\u0131z. \u00d6ncelikle, g\u00fcvenlik konusunun \u00f6nemini vurgulamakta fayda var. Zira, k\u00f6t\u00fc ama\u00e7l\u0131 yaz\u0131l\u0131mlar\u0131n yay\u0131lmas\u0131n\u0131 engellemek i\u00e7in etkin bir a\u011f g\u00fcvenli\u011fi stratejisi elzemdir.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/calico-ag-politikasi-guvenli-kubernetes-kumelerini-saglama\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-03-11T18:47:28+00:00\" \/>\n<meta name=\"author\" content=\"Fatih Soysal\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fatih Soysal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/calico-ag-politikasi-guvenli-kubernetes-kumelerini-saglama\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/calico-ag-politikasi-guvenli-kubernetes-kumelerini-saglama\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"Calico A\u011f Politikas\u0131: G\u00fcvenli Kubernetes K\u00fcmelerini Sa\u011flama\",\"datePublished\":\"2025-03-11T18:47:28+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/calico-ag-politikasi-guvenli-kubernetes-kumelerini-saglama\/\"},\"wordCount\":726,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/calico-ag-politikasi-guvenli-kubernetes-kumelerini-saglama\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/calico-ag-politikasi-guvenli-kubernetes-kumelerini-saglama\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/calico-ag-politikasi-guvenli-kubernetes-kumelerini-saglama\/\",\"name\":\"Calico A\u011f Politikas\u0131: G\u00fcvenli Kubernetes K\u00fcmelerini Sa\u011flama\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2025-03-11T18:47:28+00:00\",\"description\":\"Kubernetes, modern uygulamalar\u0131n da\u011f\u0131t\u0131m\u0131 i\u00e7in g\u00fc\u00e7l\u00fc bir ara\u00e7t\u0131r, ancak g\u00fcvenlik a\u00e7\u0131klar\u0131 her zaman bir endi\u015fe kayna\u011f\u0131 olmu\u015ftur. 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