1 sudo apt install -y vim git 2 git clone https://github.com/sandervanvugt/cka 3 cd cka 4 ls *sh 5 ./setup-container.sh 6 systemctl status containerd 7 vim setup-container.sh 8 cd /etc/sysctl.d/ 9 ls 10 cat 99-kubernetes-cri.conf 11 cd 12 cd cka 13 ls * 14 ls *sh 15 ./setup-kubetools-previousversion.sh 16 sudo kubeadm init -h | less 17 sudo kubeadm init 18 mkdir -p $HOME/.kube 19 less ~/.kube/config 20 kubectl get all 21 ls 22 less RESOURCES.txt 23 kubectl config view 24 kubectl get pods -n kube-system 25 kubectl describe -n kube-system pod coredns-674b8bbfcf-fbkd8 26 history 27 kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml 28 kubectl api-resources | less 29 kubectl get pods -n kube-system 30 history 31 kubectl get nodes 32 kubectl create deploy testdploy --image=nginx --replicas=3 33 kubectl get all 34 sudo kubeadm config print init-defaults > config.yaml 35 vim config.yaml 36 source <(kubectl completion bash) 37 kubectl get pods -n kube-system 38 kubectl edit node control 39 kubectl create deploy removeme --image=nginx --replicas=20 40 kubectl get all 41 kubectl get pods -o wide 42 kubectl edit node control 43 kubectl get pods -o wide 44 kubectl scale deploy removeme --replicas=1 45 kubectl scale deploy removeme --replicas=20 46 kubectl get pods -o wide 47 kubectl delete deploy removeme 48 history | grep create 49 kubectl get all 50 kubectl edit deploy testdploy 51 kubectl get pods -o wide 52 kubectl expose deploy testdploy 53 kubectl expose deploy testdploy --port 80 54 kubectl get all 55 curl 10.104.105.141 56 kubectl get all 57 kubectl edit svc testdploy 58 kubectl get all 59 history 60 kubectl set resources -h | less 61 kubectl get deploy 62 kubectl set resources deploy testdploy --limits=cpu=200m,memory=512Mi --requests=cpu=100m,memory=256Mi 63 source <(kubectl completion bash) 64 kubectl edit deploy testdploy 65 kubectl create ns limited 66 kubectl create quota -h | less 67 kubectl create quota qtest --hard pods=3,cpu=100m,memory=500Mi --namespace limited 68 kubectl describe quota -n limited 69 kubectl describe quota 70 kubectl describe ns limited 71 kubectl create deploy nginx --image=nginx --replicas=3 -n limited 72 kubectl get all -n limited 73 kubectl describe -n limited rs nginx-5869d7778c 74 history 75 kubectl set resources -n limited deploy nginx --requests cpu=100m,memory=5Mi --limits cpu=200m,memory=20Mi 76 kubectl get pods -n limited 77 kubectl get all -n limited 78 kubectl describe ns limited 79 kubectl edit -n limited quota qtest 80 kubectl get all -n limited 81 kubectl -n limited scale deploy nginx --replicas=1 82 kubectl -n limited scale deploy nginx --replicas=3 83 kubectl get all -n limited 84 vim limitrange.yaml 85 kubectl apply -f limitrange.yaml 86 kubectl describe ns limited 87 cat limitrange.yaml 88 kubectl describe ns default 89 kubectl delete -f limitrange.yaml 90 kubectl apply -f limitrange.yaml -n limited 91 kubectl describe ns limited 92 kubectl run limitpod --image=nginx -n limited 93 kubectl delete quota -n limited qtest 94 kubectl run limitpod --image=nginx -n limited 95 kubectl describe pod -n limited limitpod 96 history 97 kubectl create priorityclass high-priority --value=1000 --description="high priority" --preemption-policy="Never" 98 kubectl create priorityclass high-priority --value=125 --description="mid priority" --global-default=true 99 kubectl create priorityclass mid-priority --value=125 --description="mid priority" --global-default=true 100 kubectl run testpod --image=nginx 101 kubectl get testpod -o yaml | grep -B2 -i priority 102 kubectl get pod testpod -o yaml | grep -B2 -i priority 103 kubectl create deploy highprio --image=nginx 104 kubectl edit deploy highprio 105 kubectl get all --selector app=highprio 106 kubectl get pods highprio-57ccd94998-ddjjl -o yaml | grep prio 107 history 108 kubectl create quota -h | less 109 kubectl run -h | less 110 kubectl run busypod --image=busybox -- sleep 3600 111 kubectl get pods 112 kubectl get pod busypod -o yaml | less 113 kubectl get ds -A 114 kubectl get nodes 115 kubectl cordon worker1 116 kubectl create deploy many --image=nginx --replicas=10 117 kubectl get pods -o wide 118 kubectl uncordon worker1 119 kubectl get pods -o wide 120 kubectl scale deploy many --replicas=4 121 kubectl scale deploy many --replicas=10 122 kubectl get pods -o wide 123 kubectl delete deploy many 124 history > /tmp/oct25.txt 125 cd 126 arch 127 kubectl cordon worker2 128 kubectl get nodes 129 kubectl get node worker2 -o yaml | less 130 df -h 131 kubectl create deploy filledup --image=nginx --replicas=5 132 kubectl get all --selector app=filledup 133 kubectl describe pod filledup-689c9df88d-vrxrq 134 kubectl edit node worker2 135 kubectl edit node worker1 136 kubectl get pods 137 kubectl get nodes 138 kubectl uncordon worker2 139 kubectl get nodes 140 kubectl get pods -n kube-system 141 kubectl get nodes 142 helm 143 snap install helm 144 sudo snap install helm 145 sudo snap install helm --classic 146 helm version 147 helm repo add kubernetes-dashboard https://kubernetes.github.io/dashboard/ 148 helm upgrade --install kubernetes-dashboard kubernetes-dashboard/kubernetes-dashboard --create-namespace --namespace kubernetes-dashboard 149 kubectl get ns 150 kubectl get all -n kubernetes-dashboard 151 kubectl -n kubernetes-dashboard port-forward svc/kubernetes-dashboard-kong-proxy 8443:443 152 helm repo add bitnami https://charts.bitnami.com/bitnami 153 helm repo list 154 helm search repo bitnami 155 helm search repo file 156 helm search repo nginx --versions 157 helm install bitnami/mysql --generate-name --create-namespace --namespace bsql 158 helm show chart bitnami/mysql 159 helm list -A 160 helm status mysql-1761834656 161 helm status mysql-1761834656 -n bsql 162 kubectl -n bsql 163 kubectl get all -n bsql 164 kubectl describe pods -n bsql mysql-1761834656-0 165 helm repo list 166 helm show values bitnami/nginx 167 helm show values bitnami/nginx | grep commonLa 168 helm show values bitnami/nginx | grep replicaC 169 vim values.yaml 170 helm list 171 helm install bitnami/nginx --generate-name --values=values.yaml 172 helm list 173 kubectl get deploy 174 helm get values nginx-1761835222 175 helm get values --all nginx-1761835222 176 helm get values --all nginx-1761835222 | wc -l 177 helm repo add argo https://argoproj.github.io/argo-helm 178 helm repo update 179 helm search repo argo/argo-cd 180 helm template my-argo-cd argo/argo-cd > argo-cd-template.yaml 181 vim argo-cd-template.yaml 182 helm show values argo/argo-cd > values.yaml 183 vim values.yaml 184 helm template my-argocd argo/argo-cd -f values.yaml > argo-cd-template.yaml 185 kubectl apply -f argo-cd-template.yaml 186 kubectl get svc 187 kubectl delete -f argo-cd-template.yaml 188 kubectl get storageclass 189 cd cka 190 ls 191 vim pvc.yaml 192 kubectl apply -f pvc.yaml 193 kubectl get pvc 194 kubectl describe pvc pv-claim 195 ls pv* 196 vim pv.yaml 197 kubectl apply -f pv.yaml 198 kubectl get pvc 199 kubectl explain pvc.spec | less 200 history 201 sudo apt install nfs-server -y 202 sudo mkdir /nfsexport 203 sudo vim /etc/exports 204 sudo systemctl restart nfs-server 205 showmount -e localhost 206 sudo vim /etc/hosts 207 helm repo add nfs-subdir-external-provisioner https://kubernetes-sigs.github.io/nfs-subdir-external-provisioner/ 208 helm install nfs-subdir-external-provisioner nfs-subdir-external-provisioner/nfs-subdir-external-provisioner --set nfs.server=192.168.29.101 --set nfs.path=/nfsexport 209 kubectl get pods 210 kubectl get pv 211 vim nfs-provisioner-pvc-test.yaml 212 kubectl get storageclass 213 kubectl describe storageclass nfs-client 214 kubectl apply -f nfs-provisioner-pvc-test.yaml 215 kubectl get pvc,pv 216 kubectl describe pv pvc-f808333d-7ec1-44af-a24a-3ddf89eff2d7 217 ls /nfsexport/ 218 history 219 vim another-pvc-test.yaml 220 kubectl apply -f another-pvc-test.yaml 221 kubectl get pvc 222 kubectl patch storageclass nfs-client -p '{"metadata":{"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}' 223 kubectl get pvc 224 kubectl edit sc nfs-client 225 kubectl get svc 226 kubectl get pods 227 kubectl exec -it highprio-57ccd94998-ddjjl -- cat /etc/resolv.conf 228 kubectl get svc -A 229 kubectl get svc 230 kubectl exec -it highprio-57ccd94998-ddjjl -- ping testdploy 231 kubectl get cm -n kube-system coredns -o yaml 232 kubectl get all 233 kubectl delete deploy filledup highprio nginx-1761835222 testdploy 234 kubectl run webserver --image=nginx 235 kubectl expose pod webserver --port=80 236 kubectl run testpod --image=busybox -- sleep 3600 237 kubectl run testpod2 --image=busybox -- sleep 3600 238 kubectl get svc 239 kubectl exec -it testpod -- wget webserver 240 kubectl exec -it testpod2 -- wget webserver 241 kubectl create ns remote 242 kubectl run interginx --image=nginx 243 kubectl run remotebox -n remote --image=busybox -- sleep 3600 244 kubectl expose pod interginx --port=80 245 kubectl exec -it remotebox -n remote -- cat /etc/resolv.conf 246 kubectl exec -it remotebox -n remote -- nslookup interginx 247 kubectl exec -it remotebox -n remote -- nslookup interginx.default.svc.cluster.local 248 history 249 vim nwpolicy-complete-example.yaml 250 kubectl apply -f nwpolicy-complete-example.yaml 251 kubectl expose pod nginx --port=80 252 kubectl exec -it busybox -- wget --spider --timeout=1 nginx 253 vim nwpolicy-complete-example.yaml 254 kubectl label pod busybox access=true 255 kubectl exec -it busybox -- wget --spider --timeout=1 nginx 256 history 257 kubectl create ns nwp-namespace 258 vim nwp-lab10-1.yaml 259 kubectl apply -f nwp-lab10-1.yaml 260 kubectl expose pod nwp-nginx --port=80 261 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx 262 kubectl exec -it nwp-busybox -n nwp-namespace -- nslookup nwp-nginx 263 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local 264 vim nwp-lab10-2.yaml 265 kubectl apply -f nwp-lab10-2.yaml 266 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local 267 kubectl create deploy busybox --image=busybox -- sleep 3600 268 kubectl exec -it busybox-5c684d4858-pzdjl -- wget --spider --timeout=1 nwp-nginx 269 vim nwp-lab10-2.yaml 270 vim examplenwp.yaml 271 vim vm.yaml 272 vim vm.yaml 273 kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml 274 kubectl get deploy 275 kubectl get ns 276 kubectl get deploy -n kube-system 277 kubectl get pods -n kube-system 278 kubectl edit deployments.apps -n kube-system metrics-server 279 kubectl get pods -n kube-system 280 kubectl top pods 281 sudo apt update 282 sudo apt-cache madison kubeadm 283 pager /etc/apt/sources.list.d/kubernetes.list 284 vim /etc/apt/sources.list.d/kubernetes.list 285 sudo vim /etc/apt/sources.list.d/kubernetes.list 286 #sudo apt-mark unhold kubeadm && \ 287 sudo apt-get update && sudo apt-get install -y kubeadm='1.34.x-*' && sudo apt-mark hold kubeadm 288 sudo apt-cache madison kubeadm 289 sudo apt-get update && sudo apt-get install -y kubeadm='1.34.1-1.1' && sudo apt-mark hold kubeadm 290 sudo apt-mark unhold kubeadm && sudo apt-get update && sudo apt-get install -y kubeadm='1.34.1-1.1' && sudo apt-mark hold kubeadm 291 kubeadm version 292 sudo kubeadm upgrade plan 293 sudo kubeadm upgrade apply v1.34.1 294 kubectl drain control --ignore-daemonsets 295 sudo apt-mark unhold kubelet kubectl && sudo apt-get update && sudo apt-get install -y kubelet='1.34.1-1.1' kubectl='1.34.1-1.1' && sudo apt-mark hold kubelet kubectl 296 sudo systemctl daemon-reload 297 sudo systemctl restart kubelet 298 kubectl uncordon control 299 kubectl get nodes 300 history 301 kubectl drain worker2 302 kubectl drain worker2 --ignore-daemonsets 303 kubectl drain worker2 --ignore-daemonsets --force 304 kubectl drain worker2 --ignore-daemonsets --force --delete-emptydir-data 305 kubectl uncordon worker2 306 kubectl get nodes 307 kubectl drain worker1 --ignore-daemonsets --force --delete-emptydir-data 308 kubectl uncordon worker1 309 kubectl get nodes 310 kubectl create deploy webstress --image=nginx 311 kubectl autoscale deploy webstress --min=2 --max=5 --cpu-percent=80 312 kubectl get hpa 313 kubectl get all --selector app=webstress 314 sudo vim /etc/kubernetes/manifests/kube-controller-manager.yaml 315 ls /etc/kubernetes/manifests/ 316 kubectl get pods -n kube-system 317 sudo vim /etc/kubernetes/manifests/kube-controller-manager.yaml 318 kubectl get pods -n kube-system 319 sudo vim /etc/kubernetes/manifests/kube-controller-manager.yaml 320 history > /tmp/oct25.txt