kube3weeks day3 april22

student@control:~$ history
    1  git clone https://github.com/sandervanvugt/cka
    2  cd cka
    3  ls
    4  ./setup-container.sh
    5  ./setup-kubetools.sh
    6  sudo ./setup-kubetools.sh
    7  ip a
    8  sudo vim /etc/hosts
    9  sudo kubeadm init
   10  192.168.29.157  control.example.com control
   11  192.168.29.158  worker1.example.com worker1
   12  192.168.29.159  worker2.example.com worker2
   13  192.168.29.157  control.example.com control
   14  192.168.29.158  worker1.example.com worker1
   15  192.168.29.159  worker2.example.com worker2
   16  sudo kubeadm --help
   17  sudo kubeadm reset
   18  sudo -i
   19  cd
   20  mkdir .kube
   21  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
   22  sudo chown $(id -u):$(id -g) $HOME/.kube/config
   23  kubectl get all
   24  kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
   25  kubectl get nodes
   26  top
   27  ls
   28  sudo kubeadm init
   29  sudo -i
   30  kubectl get all
   31  kubectl get nodes
   32  vim varsfile
   33  kubectl create cm mydbvars --from-env-file=varsfile
   34  source <(kubectl completion bash)
   35  kubectl create deployment mydb --image=mariadb --replicas=3
   36  kubectl get all
   37  kubectl set env deploy mydb --from=configmap/mydbvars
   38  kubectl get all
   39  kubectl get deploy mydb -o yaml
   40  echo "hello friday" > index.html
   41  kubectl create vm myindex --from-file=index.html
   42  kubectl create cm myindex --from-file=index.html
   43  kubectl describe cm myindex
   44  kubectl create deploy myweb --image-nginx
   45  kubectl create deploy myweb --image=nginx
   46  kubectl get all
   47  kubectl edit deploy myweb
   48  kubectl get pods
   49  kubectl exec -it myweb-ff8bf9988-hw7m2 -- cat /usr/share/nginx/html/index.html
   50  historu
   51  history
   52  kubectl create secret -h
   53  kubectl create secret docker-registry -h
   54  kubectl create secret docker-registry my-docker-credentials --docker-username=unclebob --docker-password=password [email protected] --docker-server=myregistry:5000
   55  kubectl describe secrets my-docker-credentials
   56  kubectl get -o yaml secrets my-docker-credentials
   57  echo eyJhdXRocyI6eyJteXJlZ2lzdHJ5OjUwMDAiOnsidXNlcm5hbWUiOiJ1bmNsZWJvYiIsInBhc3N3b3JkIjoicGFzc3dvcmQiLCJlbWFpbCI6InVuY2xlQGJvYi5vcmciLCJhdXRoIjoiZFc1amJHVmliMkk2Y0dGemMzZHZjbVE9In19fQ== | base64 -d
   58  ip a
   59  ls
   60  tar xvf helm-v3.8.2-linux-amd64.tar.gz
   61  sudo mv linux-amd64/helm /usr/local/bin/
   62  helm version
   63  helm repo list
   64  helm repo add kubernetes-dashboard https://kubernetes.github.io/dashboard
   65  helm repo list
   66  helm install kubernetes-dashboard kubernetes-dashboard/kubernetes-dashboard
   67  echo $POD_NAME
   68  echo https://127.0.0.1:8443/
   69  kubectl -n default port-forward $POD_NAME 8443:8443
   70  bg
   71  ip a
   72  ss -tunap | less
   73  jobs
   74  fg
   75  kubectl port-forward -h
   76  kubectl -n default port-forward $POD_NAME --address localhost,192.168.29.157 8443:8443
   77  bg
   78  ss -tunap | less
   79  kubectl get pods -o wide
   80  ls
   81  git clone https://github.com/sandervanvugt/kube3weeks
   82  cd kube3weeks/
   83  history
   84  sleep 120; countdown 10
   85  ./countdown 8
   86  kubectl get pods -o wide
   87  kubectl describe pod kubernetes-dashboard-585b459448-9vch2
   88  kubectl describe pod kubernetes-dashboard-585b459448-9vch2 | less
   89  history
   90  helm repo add bitnami https://charts.bitnami.com/bitnami
   91  helm repo list
   92  helm search repo bitnami
   93  helm repo update
   94  helm list
   95  kubectl get all
   96  helm install bitnami/mysql --generate-name
   97  helm show chart bitnami/mysql
   98  helm show all bitnami/mysql
   99  helm list
  100  helm status mysql
  101  helm status mysql-1650634346
  102  source <(helm completion bash)
  103  helm show values bitnami/nginx
  104  helm pull bitnami/nginx
  105  ls
  106  tar xvf nginx-10.1.3.tgz
  107  cd nginx/
  108  ls
  109  vim values.yaml
  110  cd ..
  111  helm install -f nginx/values.yaml mynginx nginx/
  112  helm list
  113  cd ..
  114  git clone https://github.com/sandervanvugt/microservices
  115  cd microservices/
  116  ls
  117  vim kustomization.yaml
  118  cd lesson6lab/
  119  ls
  120  vim kustomization.yaml
  121  kubectl api-resources | grep template
  122  cd
  123  helm upgrade --install ingress-nginx ingress-nginx --repo https://kubernetes.github.io/ingress-nginx --namespace ingress-nginx --create-namespace
  124  kubectl get all
  125  kubectl get secret
  126  kubectl get pods -n ingress-nginx
  127  kubectl describe -n ingress-nginx pods ingress-nginx-controller-7575567f98-vsmnz | less
  128  kubectl get all -n ingress-nginx
  129  kubectl create deploy nginxsvc --image=nginx --port=80
  130  kubectl expose deploy nginxsvc
  131  kubectl get all
  132  kubectl edit svc nginxsvc
  133  kubectl edit -n ingress-nginx svc ingress-nginx-controller
  134  kubectl create ingress nginxsvc --class=nginx --rule=nginxsvc.info/*=nginxsvc:80
  135  kubectl describe ingress nginxsvc
  136  kubectl port-forward -n ingress-nginx svc/ingress-nginx-controller 8080:80
  137  bg
  138  curl nginxsvc.info
  139  cd kube3weeks/
  140  history
  141  sleep 120; ./countdown 10
  142  sudo cat /etc/kubelet/
  143  sudo cat /var/lib/kubelet/config.conf
  144  kubectl get all
  145  vim statefulset.yaml
  146  kubectl create -f statefulset.yaml
  147  kubectl get pods
  148  kubectl describe pod web-0
  149  kubectl get pvc
  150  top
  151  kubectl apply -f https://github.com/kubernetes-sigs/metrics-servers/releases/latest/download/components.yaml
  152  kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
  153  kubectl get pods -n kube-system
  154  kubectl logs -n kube-system metrics-server-847dcc659d-xgnjp
  155  kubectl edit deploy -n kube-system metrics-server
  156  kubectl get pods -n kube-system
  157  kubectl edit deploy -n kube-system metrics-server
  158  kubectl get pods -n kube-system
  159  kubectl top nodes
  160  kubectl top pods
  161  cd ..
  162  git clone https://github.com/sandervanvugt/ckad
  163  cd ckad
  164  cd autoscaling/
  165  ls
  166  vim Dockerfile
  167  sudo apt install docker.io
  168  sudo docker build -t php-apache .
  169  vim hpa.yaml
  170  kubectl apply -f hpa.yaml
  171  kubectl get all
  172  kubectl autoscale deploy php-apache --cpu-percent=50 --min=1 --max=10
  173  kubectl get hpa
  174  kubectl run -it load-generator --rm --image=busybox --restart=Never -- /bin/sh -c "while sleep 0.01; do wget -q -O- http://php-apache; done"
  175  kubectl get pods
  176  kubectl get hpa
  177  cd ..
  178  history
  179  sleep 120; ./countdown 10
  180  cd ..
  181  cd kube3weeks/
  182  ls
  183  cd ..
  184  git clone https://github.com/rook/rook.git
  185  cd rook/deploy/examples/
  186  ls
  187  vim common.yaml
  188  vim operator.yaml
  189  cd ~/kube3weeks/
  190  ls
  191  vim cluster.yaml
  192  lsblk
  193  cd ../rook/deploy/examples/
  194  kubectl create -f crds.yaml -f common.yaml -f operator.yaml
  195  kubectl -n rook-ceph get all
  196  kubectl create -f cluster.yaml
  197  kubectl -n rook-ceph get all
  198  vim ~/kube3weeks/storageclass.yaml
  199  kubectl -n rook-ceph get all
  200  kubectl -n rook-ceph get pods
  201  kubectl create -f ~/kube3weeks/storageclass.yaml
  202  kubectl get storageclass
  203  kubectl create -f toolbox.yaml
  204  kubectl -n rook-ceph exec -it rook-ceph-tools-d6d7c985c-6qk78 -- ceph status
  205  kubectl get pv.pvc
  206  kubectl get pv,pvc
  207  kubectl -n rook-ceph exec -it rook-ceph-tools-d6d7c985c-6qk78 -- ceph status
  208  kubectl create -f wordpress.yaml
  209  kubectl get pv,pvc
  210  kubectl delete -f wordpress.yaml
  211  kubectl delete -f ~/kube3weeks/storageclass.yaml
  212  exit
  213  kubectl get hpa
  214  kubectl get deploy php-apache
  215  kubectl api-resources | less
  216  cd kube3weeks/
  217  ls
  218  vim crd-object.yaml
  219  kubectl create -f crd-object.yaml
  220  kubectl api-resources | grep backup
  221  vim crd-backup.yaml
  222  kubectl create crd-backup.yaml
  223  kubectl create -f crd-backup.yaml
  224  kubectl get backups
  225  cd
  226  cd kube3weeks/
  227  ls
  228  kubectl create deploy old-nginx --image=nginx:1.14 --replicas=3 --dry-run=client -o yaml > oldnginx.yaml
  229  vim oldnginx.yaml
  230  kubectl create -f oldnginx.yaml
  231  kubectl get all --selector type=canary
  232  kubectl expose deploy old-nginx --name=oldnginx --port=80 --selector type=canary
  233  kubectl get svc; kubectl get endpoints
  234  kubectl get svc; kubectl get endpoints --selector type=canary
  235  echo newdeploy > index.html
  236  kubectl create cm canary --from-file=index.html
  237  vim canary.yaml
  238  kubectl create -f canary.yaml
  239  kubectl get endpoints --selector type=canary
  240  kubectl get svc
  241  curl 10.98.181.145
  242  kubectl get all --selector type=canary
  243  kubectl scale deploy new-nginx --replicas=3
  244  kubectl get all --selector type=canary
  245  kubectl scale deploy old-nginx --replicas=0
  246  kubectl get all --selector type=canary
  247  exit
  248  history