aka day 1 march21

[student@control cka]$ history
    1  mkdir -p $HOME/.kube
    2  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
    3  sudo chown $(id -u):$(id -g) $HOME/.kube/config
    4  ls -l .kube/config
    5  kubectl get all
    6  kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"
    7  kubectl get pods -A
    8  exit
    9  mkdir -p $HOME/.kube
   10  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
   11  sudo chown $(id -u):$(id -g) $HOME/.kube/config
   12  kubectl get pods -A
   13  kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"
   14  kubectl get pods -A
   15  ssh root@192.168.29.51
   16  kubectl get nodes
   17  ssh root@192.168.29.52
   18  kubectl get nodes
   19  kubectl get pods -A
   20  kubectl get pods -A -o wide
   21  ps aux | grep apiserver
   22  history
   23  exit
   24  kubectl get all
   25  cd .kube/
   26  ls
   27  vim config
   28  sudo useradd anna
   29  sudo passwd anna
   30  exit
   31  kubectl get daemonset -A
   32  git clone https://github.com/sandervanvugt/cka
   33  cd cka/
   34  ls
   35  ./counter.sh 3
   36  kubectl create ns mynamespace
   37  kubectl run alpine --image=alpine -n mynamespace -- sleep 3600
   38  kubectl get pods -n mynamespace -o yaml
   39  kubectl -h
   40  kubectl completion -h
   41  source <(kubectl completion bash)
   42  ./counter.sh 5
   43  vim mcp.yaml
   44  kubectl create -f mcp.yaml
   45  vim mcp.yaml
   46  kubectl create -f mcp.yaml
   47  kubectl get pods
   48  kubectl run mypod --image=redis --image=nginx --image=busybox --dry-run=client -o yaml
   49  vim abc.yaml
   50  kubectl run -h | less
   51  kubectl run buysbox --image=busybox --command -- sleep 3600 --dry-run=client -o yaml
   52  kubectl delete po buysbox
   53  kubectl run buysbox --image=busybox --dry-run=client -o yaml -- sleep 36000
   54  ./counter.sh 18
   55  vim exercise4.yaml
   56  kubectl create -f exercise4.yaml
   57  kubectl get pods
   58  kubectl describe pod init-demo
   59  vim bonus-exo.txt
   60  vim npabc.yaml
   61  #kubectl taint nodes worker-2 key1=value1:NoSchedule
   62  kubectl explain pod.spec.toleration
   63  kubectl explain pod.spec
   64  kubectl explain pod.spec.tolerations
   65  kubectl explain pod.spec.tolerations.value
   66  kubectl explain pod.spec.tolerations.effect
   67  history
   68  #kubectl taint nodes worker-2 key1=value1:NoSchedule
   69  kubectl taint nodes worker2 key1=value1:NoSchedule
   70  kubectl get nodes
   71  kubectl taint nodes worker2.example.com key1=value1:NoSchedule
   72  kubectl get pods -o wide
   73  vim npabc.yaml
   74  kubectl create -f npabc.yaml
   75  kubectl get pods -o wide
   76  kubectl create deployment anothernginx --image=nginx --replicas=4
   77  kubectl get pods -o wide
   78  kubectl taint nodes worker2.example.com key1=value1:NoSchedule-
   79  kubectl get pods -o wide
   80  kubectl delete pod anothernginx-5556746bdc-lj4d4
   81  kubectl get pods -o wide
   82  kubectl explain pod.spec.nodename
   83  kubectl explain pod.spec | less
   84  kubectl explain pod.spec.nodeName
   85  ./counter.sh 15
   86  kubectl top pods
   87  cd ..
   88  git clone https://github.com/kubernetes-sigs/metrics-server
   89  ls
   90  cd metrics-server/
   91  ls
   92  cd manifests/
   93  less ../README.md
   94  ls
   95  cd base/
   96  ls
   97  cd
   98  kubectl create -f metrics-server/manifests/base/
   99  kubectl delete -f metrics-server/manifests/base/
  100  kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
  101  kubectl -n kube-system edit deployments.apps metrics-server
  102  kubectl -n kube-system logs metrics-server-5b78d5f9c6-kwx27
  103  kubectl get deploy -n kube-system
  104  kubectl get pods -n kube-system
  105  kubectl get pods
  106  kubectl top -h
  107  kubectl top pod
  108  history
  109  kubectl top pod -h
  110  kubectl top pod --sort-by=cpu
  111  kubectl top pod --sort-by=cpu | head -2 | tail -1
  112  kubectl top pod --sort-by=cpu | head -2 | tail -1 > /tmp/highload.txt
  113  cd cka/
  114  ./counter.sh 6
  115  ssh root@worker2
  116  ssh root@worker2.example.com
  117  kubectl run mynginx --image=nginx --dry-run=client -o yaml > nginxb.ymal
  118  scp nginxb.ymal root@worker2.example.com/var/lib/kubelet/
  119  scp nginxb.ymal root@worker2.example.com:/var/lib/kubelet/nginxb.yaml
  120  ssh root@worker2.example.com
  121  kubectl get pods
  122  history