diff --git a/april-2024-history.txt b/april-2024-history.txt new file mode 100644 index 0000000..703c356 --- /dev/null +++ b/april-2024-history.txt @@ -0,0 +1,291 @@ + 1 ip a + 2 sudo apt install git vim -y + 3 git clone https://github.com/sandervanvugt/cka + 4 cd cka + 5 ls *sh + 6 ./setup-container.sh + 7 ls + 8 ls *sh + 9 ./setup-kubetools-previousversion.sh + 10 sudo apt install jq -y + 11 history + 12 sudo kubeadm init + 13 history + 14 mkdir ~/.kube + 15 sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config + 16 sudo chown $(id -u):$(id -g) $HOME/.kube/config + 17 kubectl get all + 18 #kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml + 19 kubectl get pods -n kube-system + 20 kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml + 21 kubectl get pods -n kube-system + 22 kubectl get ds -n kube-system + 23 kubectl get nodes + 24 history + 25 kubectl create testapp --image=nginx --replicas=3 + 26 kubectl create deploy testapp --image=nginx --replicas=3 + 27 kubectl get all -o wide + 28 history + 29 cd .. + 30 ls + 31 tar xvf helm-v3.14.4-linux-amd64.tar.gz + 32 sudo mv linux-amd64/helm /usr/local/bin + 33 helm upgrade --install ingress-nginx ingress-nginx --repo https://kubernetes.github.io/ingress-nginx --namespace ingress-nginx --create-namespace + 34 source <(kubectl completion bash) + 35 kubectl get pods -n ingress-nginx + 36 kubectl create deploy nginxsvc --image=nginx --replicas=3 + 37 kubectl get all --selector app=nginxsvc + 38 kubectl expose deploy nginxsvc + 39 kubectl expose deploy nginxsvc --port=80 + 40 kubectl get all --selector app=nginxsvc + 41 kubectl describe svc nginxsvc + 42 kubectl create ingress nginxsvc --class=nginx --rule=nginxsvc.info/*=nginxsvc:80 + 43 kubectl describe ing nginxsvc + 44 sudo vim /etc/hosts + 45 kubectl port-forward -n ingress-nginx svc/ingress-nginx-controller 8080:80 + 46 bg + 47 curl nginxsvc.info + 48 curl nginxsvc.info:8080 + 49 history + 50 curl nginxsvc.info:8080 + 51 kubectl edit svc nginxsvc + 52 curl nginxsvc.info:8080 + 53 kubectl describe ing nginxsvc + 54 kubectl describe svc nginxsvc + 55 kubectl edit svc nginxsvc + 56 curl nginxsvc.info:8080 + 57 history + 58 kubectl create ns limited + 59 kubectl create quota -h | less + 60 kubectl create quota qtest --hard pods=3,cpu=100m,memory=500Mi --namespace=limited + 61 kubectl describe quota -n limited + 62 kubectl describe ns limited + 63 kubectl create deploy nginx --image=nginx --replicas=3 -n limited + 64 kubectl get all -n limited + 65 kubectl describe -n limited rs nginx-7854ff8877 + 66 kubectl describe ns limited + 67 kubectl set resources -h | less + 68 kubectl set -n limited resources deploy nginx --requests cpu=100m,memory=5Mi --limits cpu=200m,memory=20Mi + 69 kubectl get all -n limited + 70 kubectl describe ns limited + 71 kubectl edit quota -n limited qtest + 72 kubectl describe ns limited + 73 kubectl scale -n limited deployment nginx --replicas=2 + 74 kubectl scale -n limited deployment nginx --replicas=3 + 75 kubectl describe ns limited + 76 history + 77 kubectl edit node control + 78 kubectl cordon worker1 + 79 kubectl edit node worker1 + 80 kubectl get nodes + 81 kubectl uncordon worker1 + 82 kubectl get pods -n kube-system + 83 kubectl drain node worker1 + 84 kubectl drain worker1 + 85 kubectl get nodes + 86 kubectl edit node worker1 + 87 kubectl get nodes + 88 kubectl get pods -o wide + 89 kubectl drain worker1 + 90 kubectl get nodes + 91 kubectl drain worker1 --ignore-daemonsets + 92 kubectl edit node worker1 + 93 kubectl get pods -o wide + 94 kubectl get nodes + 95 kubectl create deploy ready --image=nginx --replicas=3 + 96 kubectl get pods -o wide --selector app=ready + 97 kubectl get nodes + 98 kubectl scale deploy ready --replicas=0 + 99 kubectl scale deploy ready --replicas=3 + 100 kubectl get pods -o wide --selector app=ready + 101 cd cka/ + 102 vim networkpolicy-example.yaml + 103 git pull + 104 vim nwpolicy-complete-example.yaml + 105 kubectl apply -f nwpolicy-complete-example.yaml + 106 kubectl expose pod nginx --port=80 + 107 kubectl exec -it busybox -- wget --spider --timeout=1 nginx + 108 kubectl label pod busybox access=true + 109 kubectl exec -it busybox -- wget --spider --timeout=1 nginx + 110 kubectl create ns nwp-namespace + 111 vim nwp-lab9-1.yaml + 112 kubectl apply -f nwp-lab9-1.yaml + 113 kubectl expose pod nwp-nginx --port=80 + 114 kubectl exec -n nwp-namespace nwp-busybox -- wget --spider --timeout=1 nwp-nginx + 115 kubectl exec -n nwp-namespace nwp-busybox -- nslookup nwp-nginx + 116 kubectl exec -n nwp-namespace nwp-busybox -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local + 117 vim nwp-lab9-2.yaml + 118 kubectl apply -f nwp-lab9-2.yaml + 119 kubectl exec -n nwp-namespace nwp-busybox -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local + 120 kubectl create deploy busybox --image=busybox -- sleep 3600 + 121 kubectl exec -it busybox-6fc6c44c5b-x5vrx -- wget --spider --timeput=1 nwp-nginx + 122 kubectl exec -it busybox-6fc6c44c5b-x5vrx -- wget --spider --timeout=1 nwp-nginx + 123 kubectl delete -f nwp-lab9-2.yaml + 124 history + 125 kubectl top + 126 kubectl top pod + 127 cd + 128 git clone https://github.com/kubernetes-sigs/metrics-server.git + 129 cd metrics-server/ + 130 ls + 131 kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml + 132 kubectl -n kube-system get pods + 133 kubectl logs -n kube-system metrics-server-6d94bc8694-76vzc + 134 kubectl -n kube-system get deploy + 135 kubectl -n kube-system edit deployments.apps metrics-server + 136 kubectl get pods -n kube-system + 137 kubectl top pods + 138 cd /etc/kubernetes/manifests/ + 139 ls + 140 cd + 141 cd - + 142 less kube-scheduler.yaml + 143 sudo less kube-scheduler.yaml + 144 cd + 145 kubectl run auto-web --image=nginx --dry-run=client -o yaml > auto-web.yaml + 146 cat auto-web.yaml + 147 kubectl get pods + 148 cd /etc/kubernetes/manifests/ + 149 ls -l + 150 sudo apt install etcd-client + 151 sudo etcdctl --help + 152 sudo ETCDCTL_API=3 etcdctl --help + 153 ps aux | grep etcd + 154 cd ../pki/ + 155 ls + 156 cd etcd/ + 157 ls + 158 cd + 159 sudo ETCDCTL_API=3 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 + 160 sudo ETCDCTL_API=3 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 + 161 ls -l /tmp/etcdbackup.db + 162 sudo ETCDCTL_API=3 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-$(date +%d-%m-%y).db + 163 cd /etc/kubernetes/manifests/ + 164 ls + 165 sudo vim etcd.yaml + 166 cd + 167 history + 168 sudo ETCDCTL_API=3 etcdctl --write-out=table snapshot status /tmp/etcdbackup.db + 169 cp /tmp/etcdbackup.db /tmp/etcdbackup.db.2 + 170 kubectl get deploy + 171 kubectl delete deploy --all + 172 cd /etc/kubernetes/manifests/ + 173 ls + 174 ls .. + 175 sudo mv * .. + 176 ls + 177 sudo crictl ps + 178 sudo mkdir /var/lib/etcd-backup + 179 sudo ETCDCTL_API=3 etcdctl snapshot restore /tmp/etcdbackup.db --data-dir /var/lib/etcd-backup + 180 sudo rmdir /var/lib/etcd-backup/ + 181 sudo ETCDCTL_API=3 etcdctl snapshot restore /tmp/etcdbackup.db --data-dir /var/lib/etcd-backup + 182 sudo ls -l /var/lib/etcd-backup/ + 183 sudo ls -l /var/lib/etcd-backup/member + 184 sudo ls -l /var/lib/etcd/member + 185 sudo vim /etc/kubernetes/etcd.yaml + 186 sudo mv ../*.yaml . + 187 ls + 188 sudo crictl ps + 189 kubectl get deploy -A + 190 sudo mv ../*.yaml . + 191 sudo mv *.yaml .. + 192 ls + 193 vim ../etcd.yaml + 194 sudo vim ../etcd.yaml + 195 sudo mv /var/lib/etcd /var/lib/etcd.old + 196 sudo mv /var/lib/etcd-backup /var/lib/etcd + 197 sudo vim ../etcd.yaml + 198 mv ../*.yaml . + 199 sudo mv ../*.yaml . + 200 sudo crictl ps + 201 kubectl get deploty + 202 kubectl get deploy + 203 cd + 204 history + 205 sudo apt update + 206 sudo apt-cache madison kubeadm + 207 kubeadm version + 208 sudo apt update + 209 sudo apt-cache madison kubeadm + 210 sudo apt-mark unhold kubeadm + 211 udo apt-get update && sudo apt-get install -y kubeadm='1.29.3-*' + 212 sudo apt-get update && sudo apt-get install -y kubeadm='1.29.3-*' + 213 pager /etc/apt/sources.list.d/kubernetes.list + 214 vim /etc/apt/sources.list.d/kubernetes.list + 215 sudo vim /etc/apt/sources.list.d/kubernetes.list + 216 history + 217 sudo apt update + 218 sudo apt-cache madison kubeadm + 219 sudo apt-get update && sudo apt-get install -y kubeadm='1.29.3-1' + 220 sudo apt-get update && sudo apt-get install -y kubeadm='1.29.3-1.1' + 221 sudo apt-mark hold kubeadm + 222 kubeadm version + 223 sudo kubeadm upgrade plan + 224 sudo kubeadm upgrade apply v1.29.3 + 225 sudo apt-mark unhold kubelet kubectl + 226 sudo apt-get update && sudo apt-get install -y kubelet='1.29.3-1.1' kubectl='1.29.3-1.1' + 227 sudo apt-mark hold kubelet kubectl + 228 sudo systemctl daemon-reload + 229 sudo systemctl restart kubelet + 230 kubectl get nodes + 231 kubectl get pods + 232 history + 233 kubectl edit node control + 234 kubectl get pods -A -o wide + 235 kubectl explain pod.spec.nodeSelector + 236 cd cka/ + 237 vim selector-pod.yaml + 238 kubectl apply -f selector-pod.yaml + 239 kubectl delete pods --all + 240 kubectl apply -f selector-pod.yaml + 241 kubectl get pods + 242 kubectl describe pods nginx + 243 kubectl label nodes worker2 disktype=ssd + 244 kubectl get pods + 245 kubectl taint nodes worker1 example-key=value1:NoSchedule + 246 kubectl describe nodes worker1 + 247 kubectl cordon worker2 + 248 kubectl create deploy nginx-taint --image=nginx + 249 kubectl scale deploy nginx-taint --replicas=3 + 250 kubectl get pods -o wide + 251 vim taint-toleration.yaml + 252 kubectl apply -f taint-toleration.yaml + 253 kubectl get pods + 254 kubectl get pods -o wide + 255 kubectl edit node worker1 + 256 kubectl edit node worker2 + 257 kubectl get nodes + 258 kubectl get pods -o wide + 259 vim pod-with-node-affinity.yaml + 260 vim pod-with-node-anti-affinity.yaml + 261 vim pod-with-node-antiaffinity.yaml + 262 vim pod-with-pod-affinity.yaml + 263 history + 264 kubectl create role -h | less + 265 #kubectl create role pod-reader --verb=get --verb=list --verb=watch --resource=pods + 266 kubectl create ns roles + 267 kubectl create role viewers --verb=get --verb=list --verb=watch --resource=pods -n roles + 268 kubectl run viewpod --image=nginx --dry-run=client -o yaml > viewpod.yaml + 269 kubectl create sa viewers + 270 kubectl explain pod.spec.serviceaccount + 271 kubectl explain pod.spec.serviceAccount + 272 vim viewpod.yaml + 273 kubectl get sa -n roles + 274 kubectl create sa viewers -n roles + 275 kubectl get sa -n roles + 276 vim viewpod.yaml + 277 kubectl explain pod.metadata + 278 vim viewpod.yaml + 279 kubectl get roles -n roles + 280 kubectl create rolebinding -h | less + 281 #kubectl create rolebinding admin-binding --role=admin --serviceaccount=monitoring:sa-dev + 282 kubectl -n roles create rolebinding viewers --role=viewers --serviceaccount=roles:viewers + 283 kubectl get roles,rolebindings,sa -n roles + 284 history + 285 kubectl api-resources | less + 286 kubectl get roles,rolebindings,sa -n roles + 287 kubectl get pods -n kube-system + 288 kubectl get -n kube-system pod metrics-server-67fc4df55-9ddb8 -o yaml | grep -i serviceacc + 289 kubectl config view + 290 history +