cka day1 nov20

[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) $HOME/.kube/config
    4  ls -l .kube/config
    5  kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"
    6  kubectl get nodes
    7  history
    8  exit
    9  git clone https://github.com/sandervanvugt/cka
   10  cd cka
   11  ./counter.sh
   12  ./counter.sh 12
   13  exit
   14  history | grep wea
   15  kubectl get all -n kube-system
   16  cd cka/
   17  ./counter.sh 5
   18  kubectl completion
   19  kubectl completion -h
   20  source <(kubectl completion bash)
   21  kubectl completion -h
   22  kubectl create namespace -h
   23  kubectl create namespace mynamespace
   24  kubectl get ns
   25  kubectl run -h | less
   26  kubectl run mypod --image=alpine -- /bin/sh -c "sleep 3600"-n mynamespace
   27  kubectl get pods
   28  kubectl delete mypod
   29  kubectl delete pod mypod
   30  kubectl run mypod --image=alpine -- /bin/sh -c "sleep 3600" -n mynamespace
   31  kubectl get pods
   32  kubectl describe pod mypod
   33  kubectl describe pod mypod  | less
   34  kubectl run mypod --image=alpine -n mynamespace -- /bin/sh -c "sleep 3600"
   35  kubectl get pods -A
   36  ./counter.sh 3
   37  kubectl create deployment nginx-ex5 -h | less
   38  kubectl create deployment nginx-ex5 --image=nginx --replicas=5
   39  kubectl get deployments.apps
   40  kubectl get pods
   41  ./counter.sh 14
   42  kubectl create deployment mydepname --image busybox --command "sleep 10000" --replicas 3 --dry-run=client -o yaml
   43  kubectl create deployment mydep2 --help | less
   44  kubectl create deployment mydepname --image busybox --replicas=3 --dry-run=client -o yaml -- sleep 10000
   45  kubectl create deployment mydepname --image busybox --replicas=3 --dry-run=client -o yaml -- sleep 10000 > ex6.yaml
   46  vim ex6.yaml
   47  kubectl create -f ex6.yaml
   48  kubectl get pods
   49  kubectl delete -f ex6.yaml
   50  ./counter.sh 7
   51  sudo -i
   52  kubectl get pods --namespace kube-system
   53  kubectl describe pods etc-control.example.com --namespace kube-system
   54  kubectl describe pods etcd-control.example.com --namespace kube-system
   55  exit
   56  sudo -i
   57  cka/counter.sh 13
   58  vim ex7.yaml
   59  kubectl create -f ex7.yaml
   60  kubectl get pods
   61  history | grep soruce
   62  history | grep source
   63  source <(kubectl completion bash)
   64  kubectl describe pod nginx
   65  vim setupday2.txt
   66  cat setupday2.txt
   67  kubectl explain pods.spec.volumes | less
   68  cka/counter.sh 5
   69  cd cka
   70  vim ex9pv.yaml
   71  vim ex9pvc.yaml
   72  vim ex9pod.yaml
   73  vim ex9pv.yaml
   74  kubectl apply -f ex9pv.yaml
   75  vim ex9pv.yaml
   76  kubectl apply -f ex9pv.yaml
   77  vim ex9pvc.yaml
   78  kubectl ex9pvc.yaml
   79  kubectl apply -f ex9pvc.yaml
   80  kubectl get pvc
   81  kubectl get pv
   82  vim ex9pod.yaml
   83  kubectl apply -f ex9pod.yaml
   84  vim ex9pod.yaml
   85  kubectl apply -f ex9pod.yaml
   86  kubectl describe pod task-pv-pod
   87  kubectl api-resources | less
   88  history

ROOT COMMANDS    1  etcdctl
    2  yum provides */etcdctl
    3  yum install etcd
    4  etcdctl --help | less
    5  ETCDCTL_API=3 etcdctl -h
    6  ETCDCTL_API=3 etcdctl snapshot save -h
    7  ETCDCTL_API=3 etcdctl snapshot save --endpoint=[127.0.0.1:2379]
    8  ETCDCTL_API=3 etcdctl snapshot save --endpoints=[127.0.0.1:2379]
    9  mkdir /var/exam; ETCDCTL_API=3 etcdctl --endpoints=[127.0.0.1:2379] snapshot save /var/exam/etcd-backup
   10  mkdir /var/exam; ETCDCTL_API=3 etcdctl --endpoints=localhost:2379 snapshot save /var/exam/etcd-backup
   11  ETCDCTL_API=3 etcdctl --endpoints=localhost:2379 snapshot save /var/exam/etcd-backup
   12  ps aux | grep etcd
   13  cd /etc/kubernetes/pki/etc/
   14  cd /etc/kubernetes/pki/etcd/
   15  ls
   16  ETCDCTL_API=3 etcdctl snapshot save -h
   17  ETCDCTL_API=3 etcdctl --endpoints=localhost:2379 --cacert /etc/kubernetes/pki/etcd/ca.crt --cert /etc/kubernetes/pki/etcd/ca.crt --key /etc/kubernetes/pki/etc/server.key snapshot save /var/exam/etcd-backup
   18  ETCDCTL_API=3 etcdctl --endpoints=localhost:2379 --cacert /etc/kubernetes/pki/etcd/ca.crt --cert /etc/kubernetes/pki/etcd/ca.crt --key /etc/kubernetes/pki/etcd/server.key snapshot save /var/exam/etcd-backup
   19  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 /var/exam/etcd-backup
   20  exit
   21  history
   22  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
   23  cd /var/lib/etcd/member/snap/
   24  ls -l
   25  exit
   26  history