Data Engineering 공부

문제작업 클러스터: k8sCreate a nginx pod called nginx-resolver using image nginx, expose it internally with a service called nginx-resolver-service.Test that you are able to look up the service and pod names from within the cluster. Use the image: busybox:1.28 for dns lookup.Record results in /tmp/nginx.svc and /tmp/nginx.podPod: nginx-resolver createdService DNS Resolution recorded correctlyPod Dns res..

문제Create a new ClusterRole named deployments-clusterrole which only allows to create the following resource types: Deployment StatefulSet DaemonSetCreate a new ServiceAccount named cicd-token in the existing namespace appsBind the new ClusterRole deployment-clusterrole to the new ServiceAccount cicd-token, limited to the namespace apps문제 풀이# 1. Clusterrole 생성kubectl create clusterrole deploymen..

문제Cluster: kubectl config use-context k8sCreate the ServiceAccount named pod-access in a new namespace called appsCreate a Role with the name pod-role, and ther RoleBinding named pod-rolebindingMap the ServiceAccount from the previous step to the API resource Pods with the operations watch,list, get 문제풀이# 1. namespace 생성kubectl create namespace apps# 2. 서비스 어카운트 생성kubectl create serviceaccount p..

문제Cluster: kubectl config use-context k8sTask:Create a new ClusterRole named app-clusterrole which only allows to get, watch, list ther following resource types: Deployment, ServiceBind the new ClusterRole app-clusterrole to the new user ckauserUser ckauser and ckauser clusters are ready configuredTo check the result, run the following command: kubectl config use-context ckauser 문제 풀이# 1.cluster..

문제Cluster: kubectl config use-context k8sTask:Create the kubeconfig named ckauserusername: ckausercertificate location: /data/cka/ckauser.crt, /data/cka/ckauser.keycontext-name: ckauserckauser cluster must be operated with the privilieges of the ckauser accountCreate a role named pod-role that can create, delete, watch, list, get podsCreate the following rolebindingname: pod-rolebindingrole: pod..

문제A Kubernetes worker node, named hk8s-w2 is in state NotReadyInvestigate Why this is the case, and perform any appropriate steps to bring ther nodd to Ready state, ensuring that any changes are mae permanentk8s 클러스터 아키텍쳐 구조를 이해하고 지금 발생한 이슈에 대해서 해결하는 문제이다.해당 문제에 따라서, 원인 및 결과가 달라질 수 있다.(이번 문제에서는 서비스 데몬에 대해 다루어보자!)문제 풀이# k8s 구성을 위한 서비스 데몬 확인# 1. 컨테이너 엔진 데몬# 2. kubelet: k8s k8s에서 노드들의 동작을 보장하는 데몬# ..

문제Set configuration context: kubectl config use-context k8sList all 'PV's sorted by name saving the full kubectl output to /var/CKA2026/my_volumes .Use kubectl 's own functionally for sorting the output, and do not manipulate it any further.문제 풀이# k8s 컨텍스트 변경kubectl config use-context k8s# 이름 정렬 기준 PV 출력 확인kubectl get pv -A --sort-by='.metadata.name'# 출력 결과 파일 저장 kubectl get pv -A --sort-by='.me..

문제Cluster: kubectl config use-context k8sCreate a new PersistentVolumeClaimName: app-volumeStorageClass: app-hostpath-scCapacity: 10MiCreate a new Pod which mounts the PersistentVolumeClaim as a VolumeName: web-server-podImage: nginxMount Path: /usr/share/nginx/htmlConfigure the new Pod to have ReadWriteMany access on the volume문제 풀이# 1. 컨텍스트 설정kubectl config use-context k8s# 2. PVC 정의서 작성 및 생성..