Kubernetes Administrator: Ingress and Cluster DNS & CNI Management

Skillsoft issued completion badges are earned based on viewing the percentage required or receiving a passing score when assessment is required. Kubernetes uses Ingress to expose HTTP and HTTPS routes from outside the cluster to services within the cluster. It also facilitates DNS management by replacing Kube-DNS with CoreDNS, which is a flexible and extensible DNS server that can serve as the Kubernetes cluster DNS. In this course you’ll recognize the role of Ingress in enabling routing, the prerequisites required to create and configure Ingress, the prominent Ingress controllers and when to implement them. You’ll recall the prominent PathTypes and the use of HostName wildcards, the features of CoreDNS and Kube-DNS along with the features of prominent network and CNI plugins. Moving on, you’ll create a simple Ingress resource, update the configuration file to update the Ingress resource backend, configure the Ingress resource to run a web application behind external HTTPS load balancer and install CoreDNS as the default DNS service while installing a fresh Kubernetes cluster. Finally, you’ll upgrade the DNS service of existing Kubernetes clusters to CoreDNS, replace Kube-DNS and enforce network policies in Google Kubernetes Engine. This course is part of a series that aligns with the objectives for the Certified Kubernetes Administrator exam and can be used to prepare for this exam.