CKAD day1 dec23

    1  sudo apt install -y git
    2  git clone https://github.com/sandervanvugt/ckad
    3  cd ckad
    4  ls
    5  minikube start --vm-driver=docker --cni=calico
    6  ls
    7  history
    8  kubectl get all
    9  minikube ssh
   10  kubectl get all
   11  kubectl create deployment firstningx --image=nginx
   12  kubectl get all
   13  ./countdown 13
   14  kubectl -h
   15  kubectl create -h | less
   16  kubectl create deployment -h | less
   17  kubectl completion -h | less
   18  source <(kubectl completion bash)
   19  kubectl get all
   20  history
   21  cd
   22  cd .kube/
   23  ls
   24  less config
   25  kubectl config view
   26  cd
   27  cd ckad/
   28  l
   29  cd dockerfile/
   30  ls
   31  vim Dockerfile
   32  sudo apt install -y vim
   33  nano Dockerfile
   34  docker build -t helloworld .
   35  docker images
   36  docker run helloworld
   37  docker save helloworld halloworld.tar
   38  docker save helloworld
   39  docker save helloworld -o helloworld.tar
   40  ls -l helloworld.tar
   41  kubectl run -h | less
   42  kubectl run mynginx --image=nginx
   43  kubectl get pods
   44  kubectl get pods mynginx -o yaml | less
   45  kubectl describe pod mynginx | less
   46  history
   47  kubectl get pods
   48  kubectl describe pod mybb
   49  echo BONUSLAB: start busybox as a pod and make sure it runs the command "sleep 3600" while starting
   50  kubectl run -h | less
   51  kubectl run sleepybox --image=busybox -- sleep 3600
   52  kubectl get pods
   53  kubectl delete pod mybb
   54  history
   55  kubectl run bbox --image=busybox
   56  kubectl get pods
   57  kubectl run -h | less
   58  kubectl run gobox --image=busybox --restart=never
   59  kubectl run -h | less
   60  kubectl run gobox --image=busybox --restart=Never
   61  kubectl get pods
   62  kubectl get pods gobox -o yaml | less
   63  kubectl get pods bbox -o yaml | less
   64  history
   65  kubectl get pods bbox -o yaml | less
   66  ls
   67  cd ..
   68  ls
   69  kubectl run mynginx --image=nginx --dry-run=client -o yaml
   70  kubectl run mynginx --image=nginx --dry-run=client -o yaml > mynginx.yaml
   71  vim mynginx.yaml
   72  kubectl explain pods
   73  kubectl explain pods.spec | less
   74  vim mynginx.yaml
   75  kubectl create -f mynginx.yaml
   76  kubectl delete pod mynginx
   77  kubectl create -f mynginx.yaml
   78  kubectl delete -f mynginx.yaml
   79  kubectl apply -f mynginx.yaml
   80  vim mynginx.yaml
   81  kubectl apply -f mynginx.yaml
   82  vim mynginx.yaml
   83  kubectl apply -f mynginx.yaml
   84  vim mynginx.yaml
   85  kubectl replace -f mynginx.yaml
   86  history
   87  kubectl run bbbox --image=busybox -- sleep 3600 --dry-run=client -o yaml
   88  kubectl get pods
   89  kubectl describe pods bbbox
   90  kubectl logs bbbox
   91  kubectl delete pods bbbox
   92  kubectl run bbbox --image=busybox --dry-run=client -o yaml -- sleep 2600
   93  history
   94  history | grep git
   95  vim sidecar.yaml
   96  kubectl apply -f sidecar.yaml
   97  kubectl get pods
   98  kubectl exec -it sidecar-pod -c sidecar -- /bin/bash
   99  vim init-example1.yaml
  100  kubectl apply -f init-example1.yaml
  101  kubectl get pods
  102  kubectl describe pod init-demo1
  103  vim init-example2.yaml
  104  kubectl apply -f init-example2.yaml
  105  kubectl get pods
  106  vim init-example2.yaml
  107  history
  108  kubectl get pods
  109  kubectl get pods -A
  110  kubectl get all
  111  kubectl get all -A
  112  kubectl get ns
  113  kubectl create ns secret
  114  kubectl get ns
  115  kubectl run pod busybox -n secret -- sleep infinity
  116  kubectl run pod --image=busybox secretbox -n secret -- sleep infinity
  117  kubectl get all
  118  kubectl get all -n secret
  119  kubectl get pods
  120  kubectl config set-context --current -n secret
  121  kubectl config set-context --current --namespace=secret
  122  kubectl get pods
  123  kubectl config set-context --current -ns default
  124  kubectl config set-context --current --namespace=default
  125  kubectl get pods
  126  kubectl config set-context -h | less
  127  kubectl describe ns secret
  128  kubectl get pods
  129  kubectl exec -it bbox -- sh
  130  kubectl exec -it sleepybox -- sh
  131  kubectl get pods
  132  kubectl exec -it firstningx-5f489b9c69-lbp9z -- sh
  133  kubectl run faildb --image=mariadb
  134  kubectl get pods
  135  kubectl describe pod faildb
  136  kubectl logs faildb
  137  kubectl run -h | less
  138  kubectl run dodb --image=mariadb --env=MARIADB_ROOT_PASSWORD=password
  139  kubectl get pods
  140  kubectl delete pod faildb
  141  history
  142  vim securitycontextdemo2.yaml
  143  kubectl apply -f securitycontextdemo2.yaml
  144  kubectl exec -it security-context-demo -- sh
  145  cat securitycontextdemo2.yaml
  146  kubectl explain pod.spec.securityContext | less
  147  vim securitycontextdemo.yaml
  148  kubectl apply -f securitycontextdemo.yaml
  149  kubectl get pods
  150  kubectl describe pod nginxsecure
  151  history