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CKA &. CKAD/Networking

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End to End Section As per the CKA exam changes (effective September 2020), End to End tests is no longer part of the exam and hence it has been removed from the course. If you are still interested to learn this, please check out the complete tutorial and demos in our YouTube playlist: https://www.youtube.com/watch?v=-ovJrIIED88&list=PL2We04F3Y_41jYdadX55fdJplDvgNGENo&index=18
Practice Test - CKA - Ingress Networking - 2 ㅁ We have deployed two applications. Explore the setup. $ kubectl get all --all-namespaces NAMESPACE NAME READY STATUS RESTARTS AGE app-space pod/default-backend-5cf9bfb9d-t777q 1/1 Running 0 42s app-space pod/webapp-video-84f8655bd8-t75tl 1/1 Running 0 42s app-space pod/webapp-wear-6ff9445955-c47lj 1/1 Running 0 41s kube-system pod/coredns-f9fd979d6-9bc25 1/1 Running 0 119s kube-system pod/core..
Ingress - Annotations and rewrite-target 다양한 Ingress Controller는 그 작동방식이 다른 옵션으로 구성되어질 수 있다. NGINX Ingress Controller는 여기에서 다양한 옵션을 볼 수 있다. 실습에서 사용할 이러한 옵션 중 하나를 설명하고자 한다. (Different ingress controllers have different options that can be used to customise the way it works. NGINX Ingress controller has many options that can be seen here. I would like to explain one such option that we will use in our labs. The Rewrite target option.) wa..
Practice Test - CKA -Ingress Networking ㅁ We have deployed Ingress Controller, resources and applications, Explore the setup. Note: They are in different namespaces. $ kubectl get all --all-namespaces NAMESPACE NAME READY STATUS RESTARTS AGE app-space pod/default-backend-5cf9bfb9d-rdknk 0/1 ContainerCreating 0 98s app-space pod/webapp-video-84f8655bd8-bb2sg 0/1 ContainerCreating 0 98s app-space pod/webapp-wear-6ff9445955-xstsl 0/1 Con..
INGRESS 보호되어 있는 글입니다.
Practice Test CoreDNS in Kubernetes ㅁ Identify the DNS solution implemented in this cluster kubectl get pods -n kube-system 에서 DNS로 기동되어 있는 POD를 확인 $ kubectl get pods -n kube-system NAME READY STATUS RESTARTS AGE coredns-f9fd979d6-45wx2 1/1 Running 0 36m coredns-f9fd979d6-rqgxt 1/1 Running 0 36m etcd-controlplane 1/1 Running 0 37m kube-apiserver-controlplane 1/1 Running 0 37m kube-controller-manager-controlplane 1/1 Running 0 37m ..
How kubernetes implement DNS
Cluster DNS Pre-Requisite - What is DNS? - Host/NS lookup, Dig utility - Recorded Types - A, CNAME - Domain Name Hierachy Objectives - What names are assgned to what objects? - Service DNS records - POD DNS Records