CKA day1 oct 23

student@control:~/cka$ history
    1  free -m
    2  lscspu
    3  lscpu
    4  df -h
    5  sudo apt install vim git -y
    6  git clone https://github.com/sandervanvugt/cka
    7  cd cka
    8  ls
    9  ./setup-container.sh
   10  ./setup-kubetools.sh
   11  sudo ./setup-kubetools.sh
   12  history
   13  sudo kubeadm init
   14  mkdir -p $HOME/.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 get pods -n kube-system
   19  kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
   20  kubectl get ns
   21  kubectl get all -n kube-system
   22  kubectl get nodes
   23  history
   24  kubectl get all -n kube-system
   25  history
   26  kubectl create deploy testdeploy --image=nginx --replicas=3
   27  sleep 10; kubectl get pods -o wide
   28  kubectl run task2pod --image=nginx -n mynamespace -- sleep 3600
   29  kubectl create ns mynamespace
   30  kubectl run task2pod --image=nginx -n mynamespace -- sleep 3600
   31  kubectl delete pod task2pod
   32  kubectl get pods
   33  source <(kubectl completion bash)
   34  kubectl delete pod task2pod -n mynamespace
   35  kubectl run task2pod --image=alpine -n mynamespace -- sleep 3600
   36  kubectl get pods -n mynamespace
   37  kubectl get pods -n mynamespace -o yaml | less
   38  history
   39  kubectl run task3pod --image=nginx --image=redis --image=busybox
   40  kubectl get pods
   41  kubectl get pods task3pod -o yaml | less
   42  kubectl describe pod task3pod
   43  kubectl delete pod task3pod
   44  history
   45  kubectl run task3pod --image=busybox --dry-run=client -o yaml -- sleep infinity
   46  kubectl run task3pod --image=busybox --dry-run=client -o yaml -- sleep infinity > task3.yaml
   47  vim task3.yaml
   48  kubectl apply -f task3.yaml
   49  kubectl get pods
   50  cat task3.yaml
   51  history
   52  cat task3.yaml
   53  history
   54  vim task4pod.yaml
   55  vim md4.yaml
   56  kubectl apply -f md4.yaml
   57  kubectl get pods
   58  vim md4.yaml
   59  history
   60  kubectl create quota --help | less
   61  kubectl create ns limited
   62  kubectl create quota qtest --hard pods=3,cpu=100m,memory=500Mi --namespace limited
   63  kubectl get quota
   64  kubectl get quota -n limited
   65  kubectl describe ns limited
   66  kubectl create deploy nginx --image=nginx --replicas=3 -n limited
   67  kubectl get all -n limited
   68  kubectl describe rs -n limited nginx-7854ff8877
   69  kubectl set resources --help | less
   70  kubectl set resources deploy nginx -n limited --requests cpu=100m,memory=5Mi --limits cpu=200m,memory=20Mi
   71  history
   72  kubectl get all -n limited
   73  kubectl describe ns limited
   74  kubectl edit -n limited quota
   75  kubectl get all -n limited
   76  kubectl scale -n limited deployment nginx --replicas=3
   77  kubectl get all -n limited
   78  kubectl scale -n limited deployment nginx --replicas=4
   79  kubectl get all -n limited
   80  kubectl scale -n limited deployment nginx --replicas=3
   81  history
   82  kubectl config view
   83  history
   84  less ~/.kube/config
   85  kubectl config view
   86  kubectl config --help
   87  kubectl config current-context
   88  kubectl config set-context --current --namespace=limited
   89  kubectl config current-context
   90  kubectl config view
   91  kubectl config set-context --current --namespace=default
   92  kubectl config view
   93  history
   94  kubectl create deploy nginxex5 --image=nginx --replicas=2
   95  kubectl scale deployment nginxex5 --replicas=4
   96  vim resize_pvc.yaml
   97  history
   98  vim nwpolicy-complete-example.yaml
   99  kubectl apply -f nwpolicy-complete-example.yaml
  100  kubectl expose pod nginx --port=80
  101  kubectl exec -it busybox -- wget --spider --timeout=1 nginx
  102  kubectl label pod busybox access=true
  103  kubectl exec -it busybox -- wget --spider --timeout=1 nginx
  104  kubectl create ns nwp-namespace
  105  vim nwp-lab9-1.yaml
  106  kubectl apply -f nwp-lab9-1.yaml
  107  kubectl expose pod nwp-nginx --port=80
  108  kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx
  109  kubectl exec -it nwp-busybox -n nwp-namespace -- nslookup nwp-nginx
  110  kubectl exec -it nwp-busybox -n nwp-namespace -- nslookup nwp-nginx.default.svc.cluster.local
  111  kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
  112  vim nwp-lab9-2.yaml
  113  kubectl apply -f nwp-lab9-2.yaml
  114  kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
  115  kubectl create deploy busybox --image=busybox -- sleep 36000
  116  kubectl exec -it busybox-6b56f788cb-qsgj2 -- wget --spider --timeout=1 nwp-nginx
  117  kubectl delete -f nwp-lab9-2.yaml
  118  history
  119  vim selector-pod.yaml
  120  kubectl apply -f selector-pod.yaml
  121  kubectl get pods
  122  vim selector-pod.yaml
  123  kubectl apply -f selector-pod.yaml
  124  kubectl get all
  125  kubectl describe pod nginxxx
  126  kubectl label nodes worker2 disktype=ssd
  127  kubectl get pods
  128  kubectl edit nodes control
  129  kubectl get pods -n kube-system -o wide
  130  kubectl -n kube-system get daemonsets.apps calico-node -o yaml | less
  131  kubectl taint nodes worker1 example-key=value1:NoSchedule
  132  kubectl describe nodes worker1 | less
  133  kubectl create deploy nginx-taint --image=nginx --replicas=3
  134  kubectl get pods -o wide
  135  vim taint-toleration.yaml
  136  kubectl apply -f taint-toleration.yaml
  137  kubectl get pods
  138  kubectl get pods -o wide
  139  kubectl taint nodes worker1 example-key=value1:NoSchedule-
  140  kubectl get pods -o wide
  141  kubectl scale deployment nginx-taint --replicas=1
  142  kubectl scale deployment nginx-taint --replicas=3
  143  kubectl get pods -o wide
  144  history