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If you want to specify a custom dns server for domain specific name resolution with aks you can do so.
Kubernetes dns domain name. Every service defined in the cluster including the dns server itself is assigned a dns name. Kubernetes dns add ons currently support. Are dns queries being received processed. By default most kubernetes clusters automatically configure an internal dns service to provide a lightweight mechanism for service discovery.
By default a client pod s dns search list will include the pod s own namespace and the cluster s default domain. Since mrkaran dev isn t an fqdn according to ndots 5 setting the resolver looks at search path and determines the order of query. Currently kubernetes supports the following pod specific dns policies. So 2 things piqued my interest here.
Any dns query that does not match the. These policies are specified in the dnspolicy field of a pod spec. Assume a service named foo in the kubernetes namespace bar. The query iterates through all search paths until the answer contains a noerror code which the dns clients understand and store it as the result nxdomain simply indicates no record found for that domain name.
Deploy externaldns by following the instructions. When configuring the kubelet the administrator can also specify the name of a local domain using the flag cluster domain default local domain. Afterwards you can tail the logs with kubectl logs f name of external dns pod. The pod inherits the name resolution configuration from the node that the pods run on see related discussion for more details.
The domain name system dns is a system for associating various types of information such as ip addresses with easy to remember names. Using custom dns server for domain specific name resolution with azure kubernetes service just a short blog post about a small challenge i had these days. For additional kubernetes dns examples see the cluster dns examples in the kubernetes github repository. This is best illustrated by example.
Dns policies can be set on a per pod basis.
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