1 sudo apt install -y git vim 2 git clone https://github.com/sandervanvugt/cka 3 cd cka 4 ls *sh 5 vim setup-container-previous-version 6 vim setup-container-previous-version.sh 7 sudo ./setup-container-previous-version.sh 8 history 9 ls *sh 10 sudo ./setup-kubetools-previousversion.sh 11 history 12 sudo kubeadm init 13 mkdir -p $HOME/.kube 14 kubectl get all 15 kubectl get pods -n kube-system 16 kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml 17 kubectl get pods -n kube-system 18 kubectl get nodes 19 history 20 kubectl create deploy test --image=nginx --replicas=3 21 kubectl get all 22 kubectl completion -h 23 source <(kubectl completion bash) 24 kubectl api-resources | less 25 kubectl create ns limited 26 kubectl create quota --help | less 27 kubectl create quota qtest --hard pods=3,cpu=100m,memory=500Mi -n limited 28 kubectl describe quota -n limited 29 kubectl create deploy nginx --image=nginx --replicas=3 -n limited 30 kubectl get all -n limited 31 kubectl describe -n limited rs nginx-5869d7778c 32 kubectl set -h | less 33 kubectl set resources -n limited deploy nginx --requests cpu=100m,memory=5Mi --limits cpu=200m,memory=20Mi 34 kubectl get pods -n limited 35 kubectl describe -n limited quota 36 kubectl edit -n limited quota qtest 37 kubectl get all -n limited 38 kubectl scale -n limited deployment nginx --replicas=2 39 kubectl scale -n limited deployment nginx --replicas=3 40 kubectl get all -n limited 41 history 42 kubectl explain limitrange.spec 43 kubectl explain limitrange.spec.limits 44 kubectl create ns limited 45 vim limitrange.yaml 46 kubectl delete quota qtest -n limited 47 kubectl apply -f limitrange.yaml -n limited 48 kubectl describe ns limited 49 kubectl run limitpod --image=nginx -n limited 50 kubectl get pods 51 kubectl get pods -n limited 52 kubectl describe pod limitpod -n limited 53 history 54 kubectl create ns restricted 55 kubectl create quota -h | less 56 #kubectl create quota my-quota --hard=cpu=1,memory=1G,pods=2,services=3,replicationcontrollers=2,resourcequotas=1,secrets=5,persistentvolumeclaims=10 57 kubectl create -n restricted rquota --hard=memory=1G,pods=3 58 kubectl create -n restricted quota rquota --hard=memory=1G,pods=3 59 kubectl create -n restricted deploy task7deploy --image=nginx --replicas=3 60 kubectl set resources -h | less 61 #kubectl set resources deployment nginx -c=nginx --limits=cpu=200m,memory=512Mi 62 kubectl -n restricted set resources deploy task7deploy --limits=memory=128Mi 63 kubectl get all -n restricted 64 kubectl run busy --image=busybox -n restricted 65 kubectl run busy --image=busybox -n restricted --dry-run=client -o yaml > busy.yaml 66 kubectl edit deploy task7deploy -n restricted 67 vim busy.yaml 68 kubectl apply -f busy.yaml 69 history 70 kubectl get pods -n kube-system -o wide 71 ps aux | grep kubelet 72 systemctl status kubelet 73 ps aux | grep containerd 74 systemctl status containerd 75 sudo crictl ps 76 sudo vim /etc/crictl.yaml 77 sudo crictl ps -a 78 sudo crictl logs 89c71b33d194e 79 history 80 kubectl get nodes 81 kubectl cordon worker1 82 kubectl create deploy --image=nginx --replicas=7 83 kubectl create deploy myweb --image=nginx --replicas=7 84 kubectl get pods -o wide 85 kubectl get nodes 86 kubectl uncordon worker1 87 kubectl get pods -o wide 88 kubectl scale deployment myweb --replicas=1 89 kubectl scale deployment myweb --replicas=7 90 kubectl get pods -o wide 91 kubectl drain worker1 92 kubectl drain worker1 --ignore-daemonsets 93 kubectl get nodes 94 kubectl describe node worker1 95 kubectl uncordon worker1 96 kubectl delete deploy myweb 97 helm 98 sudo snap install helm 99 sudo snap install helm --classic 100 helm repo add argo https://argoproj.github.io/argo-helm 101 helm repo update 102 helm search repo argo/argo-cd 103 helm template my-argo-cd argo/argo-cd --version 8.1.3 > argo-cd-template.yaml 104 vin argo-cd-template.yaml 105 vim argo-cd-template.yaml 106 helm show values argo/argo-cd > values.yaml 107 vim values.yaml 108 helm template my-argocd argo/argo-cd -f values.yaml > argo-cd-template.yaml 109 kubectl get all 110 kubectl apply -f argo-cd-template.yaml 111 helm --help | less 112 vim nwpolicy-complete-example.yaml 113 kubectl apply -f nwpolicy-complete-example.yaml 114 kubectl expose pod nginx --port=80 115 kubectl get pods,svc 116 kubectl delete -f argo-cd-template.yaml 117 kubectl exec -it busybox -- wget --spider --timeout=1 nginx 118 kubectl describe netpol 119 kubectl get pods --show-labels 120 kubectl label pod busybox access=true 121 kubectl describe netpol 122 kubectl exec -it busybox -- wget --spider --timeout=1 nginx 123 kubectl create ns nwp-namespace 124 vim nwp-lab10-1.yaml 125 kubectl create -f nwp-lab10-1.yaml 126 kubectl expose pod nwp-nginx --port=80 127 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx 128 kubectl exec -it nwp-busybox -n nwp-namespace -- nslookup nwp-nginx 129 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local 130 vim nwp-lab10-2.yaml 131 kubectl create -f nwp-lab10-2.yaml 132 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local 133 kubectl create deploy busybox --image=busybox -- sleep 3600 134 kubectl exec -it busybox-5c684d4858-rkcx9 -- wget --spider --timeout=1 nwp-nginx 135 history > /tmp/july25.txt 136 dpkg =l 137 dpkg -l 138 dpkg -l | grep jq 139 kubectl create ns restricted 140 kubectl create ns resticted 141 vim resticted.yaml 142 kubectl create deploy nginx --image=nginx -n resticted 143 vim resticted.yaml 144 kubectl get ns --show-labels 145 vim resticted.yaml 146 kubectl apply -f resticted.yaml 147 vim resticted.yaml 148 kubectl apply -f resticted.yaml 149 vim resticted.yaml 150 kubectl expose -n resticted deployment nginx --port=80 151 kubectl run rpod --image=busybox -- sleep infinity 152 kubectl get pods 153 kubectl exec -it rpod -- wget --spider --timeout=1 nginx.svc.resticted.cluster.local 154 kubectl exec -it rpod -- wget --spider --timeout=1 nginx.resticted.svc.cluster.local 155 vim resticted.yaml 156 kubectl label -n resticted pod nginx-5869d7778c-6tb7c access="yes" 157* kubectl exec -it r 158 kubectl label pod rpod access="yes" 159 kubectl exec -it rpod -- wget --spider --timeout=1 nginx.resticted.svc.cluster.local 160 history 161 cat resticted.yaml 162 kubectl top pods 163 kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml 164 kubectl -n kube-system get pods 165 kubectl logs -n kube-system metrics-server-867d48dc9c-hlslg 166 kubectl edit -n kube-system deployments.apps metrics-server 167 kubectl -n kube-system get pods 168 kubectl top pods -A 169 history 170 kubectl create deploy webstress --image=nginx 171 kubectl autoscale -h | less 172 kubectl autoscale deploy webstress --min=2 --max=5 --cpu=percent=80 173 kubectl autoscale deploy webstress --min=2 --max=5 --cpu-percent=80 174 kubectl get hpa 175 kubectl get deploy webstress 176 kubectl explain hpa.spec 177 kubectl explain hpa.spec.behavior 178 kubectl explain hpa.spec.behavior.scaleDown 179 kubectl edit hpa 180 sudo -i 181 kubectl run auto-web --image=nginx --dry-run=client -o yaml 182 kubectl get pods -o wide 183 history 184 sudo apt install etcd-client 185 sudo etcdctl --help | less 186 ps aux | grep etcd 187 sudo etcdctl --endpoints=localhost:2379 --cacert /etc/kubernetes/pki/etcd/ca.crt --cert /etc/kubernetes/pki/etcd/server.crt --key /etc/kubernetes/pki/etcd/server.key get / --prefix --keys-only 188 sudo etcdctl --endpoints=localhost:2379 --cacert /etc/kubernetes/pki/etcd/ca.crt --cert /etc/kubernetes/pki/etcd/server.crt --key /etc/kubernetes/pki/etcd/server.key snapshot save /tmp/etcdbackup.db 189 ls -l /tmp/etcdbackup.db 190 etcdctl --write-out=table snapshot status /tmp/etcdbackup.db 191 sudo etcdctl --write-out=table snapshot status /tmp/etcdbackup.db 192 history 193 kubectl get deploy 194 kubectl delete deploy --all 195 cd /etc/kubernetes/manifests/ 196 ls 197 sudo mv * .. 198 sudo crictl ps 199 sudo mv /var/lib/etcd /var/lib/etcd-backup 200 sudo etcdctl snapshot restore /tmp/etcdbackup.db --data-dir /var/lib/etcd 201 ls -l /var/lib/etcd 202 sudo ls -l /var/lib/etcd 203 sudo mv ../*.yaml . 204 sudo crictl ps 205 kubectl get deploy 206 history 207 cd 208 kubectl describe node control | less 209 kubectl label node worker2 disktype=ssd 210 cd cka/ 211 vim selector-pod.yaml 212 kubectl delete pod --all 213 kubectl apply -f selector-pod.yaml 214 kubectl get pods 215 kubectl describe pod nginx 216 kubectl delete -f selector-pod.yaml 217 vim selector-pod.yaml 218 kubectl apply -f selector-pod.yaml 219 kubectl get pods 220 kubectl get pods -o wide 221 kubectl get nodes 222 kubectl describe node worker1 223 kubectl edit node worker1 224 kubectl describe node worker1 | less 225 kubectl taint nodes worker1 storage=ssd:NoSchedule 226 kubectl describe nodes worker1 | less 227 kubectl get nodes -o wide 228 kubectl create deploy nginx-taint --image=nginx --replicas=5 229 kubectl get pods -o wide 230 vim taint-toleration.yaml 231 kubectl apply -f taint-toleration.yaml 232 kubectl get pods tolerator -o wide 233 vim taint-toleration.yaml 234 kubectl apply -f taint-toleration.yaml 235 kubectl get pods toleratoro -o wide 236 vim taint-toleration2.yaml 237 kubectl apply -f taint-toleration2.yaml 238 kubectl get pods nginx-hdd -o wide 239 history 240 kubectl kustomize "https://github.com/nginx/nginx-gateway-fabric/config/crd/gateway-api/standard?ref=v1.6.2" | kubectl apply -f - 241 helm install ngf oci://ghcr.io/nginx/charts/nginx-gateway-fabric --create-namespace -n nginx-gateway 242 kubectl get pods,svc -n nginx-gateway 243 kubectl get gc 244 kubectl edit -n nginx-gateway svc ngf-nginx-gateway-fabric 245 kubectl get svc -n nginx-gateway 246 kubectl create deploy nginxgw --image=nginx --replicas=3 247 kubectl expose deploy nginxgw --port=80 248 vim http-routing.yaml 249 kubectl apply -f http-routing.yaml 250 sudo sh -c "echo 127.0.0.1 whatever.com >> /etc/hosts" 251 kubectl -n nginx-gateway port-forward pods/ngf-nginx-gateway-fabric-6b4dfbbf6-vxqwd 8080:80 8443:443 252 bg 253 curl whatever.com:8080 254 ip a 255 sudo vim /etc/hosts 256 kubectl get svc -n nginx-gateway 257 curl whatever.com:32080 258 history 259 kubectl edit -n nginx-gateway svc ngf-nginx-gateway-fabric 260 openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout tls.key -out tls.crt -subj "/CN=whatever.com" 261 kubectl create secret tls gateway-tls --cert=tls.crt --key=tls.key 262 vim tls-gateway.yaml 263 history | grep yaml 264 kubectl delete -f http-routing.yaml 265 kubectl apply -f tls-gateway.yaml 266 vim https-routing.yaml 267 kubectl apply -f https-routing.yaml 268 sudo apt install socat 269 sudo socat TCP4-LISTEN:80,fork TCP4:127.0.0.1:32080 & 270 sudo socat TCP4-LISTEN:443,fork TCP4:127.0.0.1:32443 & 271 curl -k https://whatever.com 272 curl http://whatever.com 273 history > /tmp/july25.txt