{"id":58,"date":"2021-08-28T18:15:00","date_gmt":"2021-08-28T18:15:00","guid":{"rendered":"http:\/\/blog.firatyasar.com\/?p=58"},"modified":"2022-03-28T18:17:43","modified_gmt":"2022-03-28T18:17:43","slug":"azure-kubernetes-service-aks-uptime-sla","status":"publish","type":"post","link":"https:\/\/blog.firatyasar.com\/?p=58","title":{"rendered":"Azure Kubernetes Service (AKS) Uptime SLA"},"content":{"rendered":"\n

Uzun zamand\u0131r yazmak istedi\u011fim bir konuya de\u011finme vakti geldi. Azure Kubernetes Service (AKS) \u00fczerinde Uptime SLA isminde bir feature bulunuyor. \u00c7o\u011funuzun kafas\u0131na “Zaten y\u00f6netilen olarak ald\u0131\u011f\u0131m\u0131z bu hizmet i\u00e7in bir de ayr\u0131ca SLA alman\u0131n anlam\u0131 nedir?” Ya da “Zaten Microsoft bu service \u00f6zelinde SLA sa\u011flam\u0131yor mu? ” \u015feklinde sorular olu\u015fmu\u015f olabilir. \u015eimdi bu konuyu biraz daha derinlemesine inceleyip AKS’nin Uptime SLA ile sahip oldu\u011fu avantajlar\u0131 netle\u015ftirelim.
Microsoft kendi d\u00f6k\u00fcmanlar\u0131nda Uptime SLA i\u00e7in \u015fu \u015fekilde bir tan\u0131m kullan\u0131yor.”Uptime SLA is a tier to enable a financially backed, higher SLA for an AKS cluster<\/strong>“.
Bildi\u011finiz \u00fczere Microsoft Azure platformu \u00fczerinde AKS free olarak m\u00fc\u015fterilerine sunuluyor. Yani cluster’\u0131n control-plane dedi\u011fimi bile\u015fenleri Microsoft taraf\u0131ndan herhangi bir ek \u00fccret al\u0131nmadan y\u00f6netiliyor. Ancak bu free olarak y\u00f6netilen control-plane bile\u015fenleri bir ka\u00e7 replikadan olu\u015fan limitli kaynaklar ile geliyor. Bu sebeple Microsoft bu hizmet i\u00e7in herhangi bir SLA taahh\u00fct etmiyor. Burada %95.5 SLO (service level objective) veriyor.
Microsoft Uptime SLA feature ile birlikte AKS taraf\u0131ndaki availability zone kullanan Kubernetes API Server i\u00e7in %99.95 SLA , availability zone kullanmayan Kubernetes API Server i\u00e7in %99.9 SLA vermeyi taahh\u00fct ediyor. Bunu yaparken control plane bile\u015fenlerini ayr\u0131 availability zone’larda konumland\u0131r\u0131p ve update ve fault domain konfig\u00fcrasyonlar\u0131n\u0131 yaparak SLA ile verilen uptime’\u0131 kar\u0131\u015f\u0131l\u0131yor.Microsoft e\u011fer AKS \u00fczerinde production i\u015f y\u00fckleri \u00e7al\u0131\u015ft\u0131r\u0131yorsan\u0131z control plane bile\u015fenlerinin availability’si i\u00e7in Uptime SLA’i alman\u0131z\u0131 tavsiye ediyor.
Feature olarak sunulan bu hizmetin saatlik \u00fccreti yakla\u015f\u0131k 0,10$ civar\u0131nda. Yani ayl\u0131k cluster makiyetiniz \u00fczerine ortalama 73$’l\u0131k bir ek SLA \u00fccreti geliyor.
Uptime SLA nas\u0131l etkinle\u015ftirilir?<\/strong>
Uptime SLA kubernetes kurulumu s\u0131ras\u0131nda yada var olan cluster \u00fczerindeki update se\u00e7ene\u011fi ile –uptime-sla parametresi kullan\u0131larak a\u015fa\u011f\u0131daki gibi etkinle\u015ftirilebilir.<\/p>\n\n\n\n

# Create an AKS cluster with uptime SLA\naz aks create --resource-group myResourceGroup --name myAKSCluster --uptime-sla --node-count 1<\/code><\/pre>\n\n\n\n
# Update an existing cluster to use Uptime SLA\naz aks update --resource-group myResourceGroup --name myAKSCluster --uptime-sla<\/code><\/pre>\n\n\n\n
<\/p>\n\n\n\n
\u0130stenildi\u011fi taktirde –no-uptime-sla parametresi kullan\u0131larak SLA \u00f6zelli\u011fi iptal edilebilir.<\/p>\n\n\n\n

Sonu\u00e7 olarak production i\u015f y\u00fckleri i\u00e7in kullan\u0131lan Kubernetes cluster’lar\u0131n yedekli \u00e7al\u0131\u015fmas\u0131 ve eri\u015filebilir olmas\u0131 gereklidir. Saatlik \u00fccreti 0.10$ olaran bu hizmet ile Azure platformu \u00fczerinde Kubernetes cluster’lar\u0131n\u0131z\u0131n her daim ula\u015f\u0131labilir olmas\u0131n\u0131 sa\u011flayabilir siniz.<\/p>\n\n\n\n
Kaynak: https:\/\/docs.microsoft.com\/en-us\/azure\/aks\/uptime-sla<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Uzun zamand\u0131r yazmak istedi\u011fim bir konuya de\u011finme vakti geldi. Azure Kubernetes Service (AKS) \u00fczerinde Uptime SLA isminde bir feature bulunuyor. \u00c7o\u011funuzun kafas\u0131na “Zaten y\u00f6netilen olarak ald\u0131\u011f\u0131m\u0131z bu hizmet i\u00e7in bir de ayr\u0131ca SLA alman\u0131n anlam\u0131 nedir?” Ya da “Zaten Microsoft bu service \u00f6zelinde SLA sa\u011flam\u0131yor mu? ” \u015feklinde sorular olu\u015fmu\u015f olabilir. \u015eimdi bu konuyu biraz\u2026 Read More »<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":32,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[5,15,14,16,13],"_links":{"self":[{"href":"https:\/\/blog.firatyasar.com\/index.php?rest_route=\/wp\/v2\/posts\/58"}],"collection":[{"href":"https:\/\/blog.firatyasar.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.firatyasar.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.firatyasar.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.firatyasar.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=58"}],"version-history":[{"count":1,"href":"https:\/\/blog.firatyasar.com\/index.php?rest_route=\/wp\/v2\/posts\/58\/revisions"}],"predecessor-version":[{"id":59,"href":"https:\/\/blog.firatyasar.com\/index.php?rest_route=\/wp\/v2\/posts\/58\/revisions\/59"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.firatyasar.com\/index.php?rest_route=\/wp\/v2\/media\/32"}],"wp:attachment":[{"href":"https:\/\/blog.firatyasar.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=58"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.firatyasar.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=58"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.firatyasar.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=58"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}