CKAD jan22 all-3-days

student@student-virtual-machine:~/ckad$ history
    1  sudo apt install vim git
    2  git clone https://github.com/sandervanvugt/ckad
    3  cd ckad
    4  ls
    5  ./minikube-docker-setup.sh
    6  minikube start --vm-driver=docker
    7  kubectl get all
    8  minikube status
    9  minikube --help
   10  minikube dashboard
   11  bg
   12  history
   13  kubectl get all
   14  ./countdown 12
   15  kubectl --help | less
   16  kubectl create --help | less
   17  kubectl create deployment --help | less
   18  kubectl create deployment my-dep --image=nginx --replicas=3
   19  kubectl get all
   20  kubectl completion -h | less
   21  source <(kubectl completion bash)
   22  kubectl create poddisruptionbudget -h
   23  history
   24  kubectl config view
   25  cd
   26  cd .kube/
   27  ls
   28  vim config
   29  history
   30  cd
   31  kubectl run nakegginx --image=nginx
   32  kubectl get all
   33  kubectl delete pod my-dep-5b7868d854-svmmv
   34  kubectl get all
   35  kubectl delete pod nakegginx
   36  kubectl get all
   37  kubectl get pods
   38  kubectl get pods my-dep-5b7868d854-tsdp9 -o yaml | less
   39  kubectl describe pods my-dep-5b7868d854-tsdp9 | less
   40  kubectl run -h | less
   41  kubectl get pods my-dep-5b7868d854-tsdp9 -o yaml | less
   42  kubectl api-resources
   43  kubectl api-resources | less
   44  kubectl explain pods
   45  kubectl explain pods.spec
   46  kubectl explain pods.spec.containers
   47  history
   48  kubectl run mynginx --image=nginx --dry-run=client -o yaml
   49  kubectl run mynginx --image=nginx --dry-run=client -o yaml > mynginx.yaml
   50  vim mynginx.yaml
   51  kubectl create -f mynginx.yaml
   52  kubectl get all
   53  kubectl delete -f mynginx.yaml
   54  kubectl get all
   55  vim mynginx.yaml
   56  kubectl run sleepybox --image=busybox -- sleep 3600
   57  kubectl get pods
   58  kubectl get pods sleepybox -o yaml > sleepy.yaml
   59  vim sleepy.yaml
   60  kubectl delete pod sleepybox
   61  kubectl apply -f sleepy.yaml
   62  kubectl get all
   63  kubectl run snoringbox --image=busybox -- sleep 3600
   64  kubectl get pods snoringbox -o yaml > snore.yaml
   65  kubectl delete pods snoringbox
   66  kubectl create -f snore.yaml
   67  kubectl get pods
   68  cd ckad/
   69  ./countdown 12
   70  history
   71  vim sidecar.yaml
   72  kubectl create -f sidecar.yaml
   73  kubectl exec -it sidecar-pod -c sidecar -- /bin/bash
   74  history
   75  vim sidecar.yaml
   76  vim init-example1.yaml
   77  kubectl create init-example1.yaml
   78  kubectl create -f init-example1.yaml
   79  kubectl get pods
   80  kubectl describe pod init-demo1
   81  vim init-example2.yaml
   82  kubectl create -f init-example2.yaml
   83  kubectl get pods
   84  vim init-example1.yaml
   85  kubectl get ns
   86  kubectl get all
   87  kubectl get all -n kube-system
   88  kubectl get all -n kubernetes-dashboard
   89  kubectl create ns mynamespace
   90  kubectl get ns
   91  kubectl get all -n mynamespace
   92  kubectl run mypod --image=busybox -- sleep 3600 -n mynamespace
   93  kubectl get pods
   94  kubectl run mypod --image=busybox -n mynamespace -- sleep 3600
   95  kubectl get all -n mynamespace
   96  history
   97  kubectl get pods
   98  kubectl describe pods mypod
   99  kubectl logs mypod
  100  kubectl delete pods mypod
  101  kubectl get pods -A
  102  kubectl create ns secret
  103  kubectl run secretpod --image=nginx -n secret
  104  kubectl get pods -A
  105  vim busybox-ns.yaml
  106  kubectl get pods -o yaml -n secret secretpod
  107  kubectl get pods -o yaml -n secret secretpod  | less
  108  vim busybox-ns.yaml
  109  kubectl create -f busybox-ns.yaml
  110  kubectl get pods -n secret
  111  ./countdown 12
  112  kubectl get pods
  113  kubectl exec -it sleepybox sh
  114  kubectl explain pods.spec
  115  kubectl explain pods.spec.securityContext | less
  116  kubectl explain pods.spec.containers.securityContext | less
  117  vim securitycontextdemo2.yaml
  118  kubectl create -f securitycontextdemo2.yaml
  119  kubectl exec -it security-context-demo -- sh
  120  vim securitycontextdemo.yaml
  121  kubectl create -f securitycontextdemo.yaml
  122  kubectl get pods
  123  kubectl describe pods nginxsecure
  124  kubectl create job -h
  125  kubectl create job onejob --image=busybox -- date
  126  kubectl get all
  127  kubectl get jobs onejob -o yaml | less
  128  kubectl get pods onejob--1-rnm7p -o yaml | grep restart
  129  kubectl get pods onejob--1-rnm7p -o yaml | grep -A 5 -B 5 restart
  130  kubectl delete job onejob
  131  kubectl get all
  132  kubectl create mynewjob --image=busybox --dry-run=client -o yaml -- sleep 5 > myjob.yaml
  133  kubectl create job mynewjob --image=busybox --dry-run=client -o yaml -- sleep 5 > myjob.yaml
  134  vim myjob.yaml
  135  kubectl create -f myjob.yaml
  136  kubectl get all
  137  kubectl create cronjob -h | less
  138  kubectl create cronjob runme --image=busybox --schedule="*/1 * * * *" -- echo greetings from kubernetes
  139  kubectl get cronjobs,jobs,pods
  140  kubectl logs runme-27364002--1-9rsmn
  141  kubectl get cronjobs,jobs,pods
  142  kubectl delete cronjobs.batch runme
  143  kubectl get cronjobs,jobs,pods
  144  vim frontend-resources.yaml
  145  kubectl create -f frontend-resources.yaml
  146  kubectl get all
  147  kubectl describe pod frontend
  148  kubectl get all
  149  kubectl describe pod frontend
  150  kubectl delete -f frontend-resources.yaml
  151  vim frontend-resources.yaml
  152  kubectl create -f frontend-resources.yaml
  153  history
  154  sudo poweroff
  155  minikube start
  156  source <(kubectl completion bash)
  157  kubectl create deployment myweb --image=nginx --replicas=3
  158  kubectl get all
  159  kubectl get all --selector app=myweb
  160  kubectl get all --selector app=myweb --show-labels
  161  kubectl describe deployments.apps myweb
  162  kubectl get all --selector app=myweb --show-labels
  163  kubectl delete pod myweb-855c667ff6-w7mtn
  164  kubectl get all --selector app=myweb --show-labels
  165  kubectl run mypod --image=nginx
  166  kubectl get pods
  167  kubectl delete pods mypod
  168  kubectl get pods
  169  history
  170  kubectl scale deployment myweb --replicas=5
  171  kubectl get all --selector app=myweb --show-labels
  172  kubectl edit deployments.apps myweb
  173  cd ckad/
  174  vim redis-deploy.yaml
  175  kubectl create -f redis-deploy.yaml
  176  vim redis-deploy.yaml
  177  kubectl api-versions
  178  vim redis-deploy.yaml
  179  kubectl create -f redis-deploy.yaml
  180  kubectl edit deploy redis
  181  kubectl get all
  182  kubectl delete replicasets.apps redis
  183  kubectl delete replicasets.apps redis-6fb5b985bc
  184  kubectl get all
  185  history
  186  kubectl create deployment nginxip --image=nginx:1.14
  187  kubectl get all --selector app=nginxip
  188  kubectl set image deploy nginxip nginx=nginx:1.17
  189  kubectl get all --selector app=nginxip
  190  kubectl create deployment bluelabel --image=nginx
  191  kubectl get all --selector app=bluelabel
  192  kubectl label deployments.apps bluelabel state=demo
  193  kubectl get deployments.apps --show-labels
  194  kubectl get deployments.apps --selector state=demo
  195  kubectl get all --selector state=demo
  196  kubectl describe deployments.apps bluelabel
  197  kubectl get deploy bluelabel -o yaml | less
  198  kubectl label pod bluelabel-765c597dd6-tdgn2 app-
  199  kubectl get pods
  200  kubectl run blacklabel --image=nginx --label=bluelabel
  201  kubectl run --help | less
  202  kubectl run blacklabel --image=nginx --labels=bluelabel
  203  kubectl run blacklabel --image=nginx --labels bluelabel
  204  kubectl run blacklabel --image=nginx --labels=redlabel
  205  kubectl run --help | less
  206  kubectl run blacklabel --image=nginx --labels=app=bluelabel
  207  kubectl get all
  208  kubectl get pods --show-labels
  209  kubectl get pods --show-labels | grep run
  210  kubectl get deploy
  211  kubectl scale deployment webginx --replicas=0
  212  kubectl get all --selector app=webginx
  213  kubectl get all
  214  kubectl get all --show-labels
  215  kubectl get all --selector k8s-app=webginx
  216  kubectl rollout history
  217  kubectl rollout history deployment
  218  kubectl get deployments.apps bluelabel -o yaml
  219  kubectl scale deploy bluelabel --replicas=4
  220  kubectl get all --selector app=bluelabel
  221  kubectl set env deploy bluelabel type=blended
  222  kubectl get all --selector app=s
  223  kubectl set env deploy bluelabel type=singlemalt
  224  kubectl get all --selector app=bluelabel
  225  vim rolling.yaml
  226  kubectl create -f rolling.yaml
  227  kubectl rollout history deployment
  228  kubectl edit deployments.apps rolling-nginx
  229  kubectl rollout history deployment
  230  kubectl describe deployments.apps rolling-nginx
  231  kubectl  rollout history deployment rolling-nginx --revision=2
  232  kubectl  rollout history deployment rolling-nginx --revision=1
  233  kubectl  rollout undo deployment rolling-nginx --to-revision=1
  234  ./countdown 12
  235  kubectl create deploy nginxsvc --image=nginx --replicas=3
  236  kubectl get all --selector app=nginxsvc
  237  kubectl get all --selector app=nginxsvc -o wide
  238  curl 172.17.0.34
  239  kubectl expose deployment nginxsvc --port=80
  240  kubectl get all --selector app=nginxsvc -o wide
  241  kubectl describe svc nginxsvc
  242  kubectl get endpoints
  243  kubectl get svc
  244  curl 10.98.218.40
  245  minikube ssh
  246  kubectl edit svc nginxsvc
  247  kubectl get svc
  248  minikube ip
  249  curl 192.168.49.2:32000
  250  history
  251  kubectl describe svc nginxsvc
  252  kubectl edit svc nginxsvc
  253  kubectl describe svc nginxsvc
  254  kubectl edit svc nginxsvc
  255  kubectl get all -n kube-system
  256  kubectl run testpod --image=busybox
  257  kubectl get pods testpod
  258  kubectl describe pods testpod
  259  kubectl get pods testpod
  260  kubectl delete pod testpod
  261  kubectl run testpod --image=busybox -- sleep 3600
  262  kubectl get svc
  263  kubectl get svc,pods -n kube-system
  264  kubectl get endpoints -n kube-system
  265  kubectl get svc,pods -n kube-system -o wide
  266  kubectl exec -ti testpod -- cat /etc/resolv.conf
  267  kubectl get svc,pods -n kube-system -o wide
  268  kubectl exec -it testpod -- nslookup nginxsvc
  269  history
  270  ./countdown 5
  271  kubectl expose --help
  272  kubectl expose --help | less
  273  kubectl create service --help | less
  274  kubectl create service nodeport --help
  275  ./countdown 12
  276  minikube addons list
  277  minikube addons enable ingress
  278  kubectl get ns
  279  kubectl get all -n ingress-nginx
  280  kubectl get deploy
  281  kubectl get svc nginxsvc
  282  curl http://$(minikube ip):32000
  283  kubectl create ingress --help | less
  284  kubectl create ingress nginxsvc-ingress --rule="/=nginxsvc:80" --rule="/hello=newdep:8080:
  285  kubectl create ingress nginxsvc-ingress --rule="/=nginxsvc:80" --rule="/hello=newdep:8080"
  286  minikube ip
  287  sudo vim /etc/hosts
  288  kubectl get ingress
  289  curl nginxsvc.info
  290  kubectl describe ingress nginxsvc-ingress
  291  kubectl create deploy newdep --image=gcr.io/google-samples/hello-app:2.0
  292  kubectl expose deployment newdep --port=8080
  293  curl nginxsvc.info/hello
  294  kubectl describe ingress nginxsvc-ingress
  295  history
  296  kubectl explain pod.spec.volumes | less
  297  vim morevolumes.yaml
  298  kubectl create -f morevolumes.yaml
  299  kubectl get pods morevol
  300  kubectl get pods morevol2
  301  kubectl describe pods morevol2 | less
  302  kubectl exec -it morevol2 -c centos1 -- touch /centos1/test1
  303  kubectl exec -it morevol2 -c centos2 -- ls -l /centos2
  304  ./countdown 13
  305  kubectl describe pod morevol2
  306  vim morevolumes.yaml
  307  vim pv.yaml
  308  kubectl create -f pv.yaml
  309  kubectl get pv
  310  vim pvc.yaml
  311  kubectl create -f pvc.yaml
  312  kubectl get pv,pvc
  313  kubectl get storageclass
  314  kubectl describe pv pvc-8328b15a-3404-4339-8b91-42838713ad16
  315  vim pv-pvc-pod.yaml
  316  vim pv-pod.yaml
  317  kubectl create -f pv-pod.yaml
  318  kubectl describe pod pv-pod
  319  kubectl exec -it pv-pod -- echo hello > /usr/share/nginx/html/myfile
  320  kubectl exec -it pv-pod -- 'echo hello > /usr/share/nginx/html/myfile'
  321  kubectl exec -it pv-pod -- touch /usr/share/nginx/html
  322  kubectl exec -it pv-pod -- touch /usr/share/nginx/html/mynewfile
  323  kubectl get pvc
  324  kubectl describe pv pvc-8328b15a-3404-4339-8b91-42838713ad16
  325  minikube ssh
  326  history
  327  kubectl get pv
  328  kubectl explain pv.spec.fc
  329  kubectl explain pv.spec.iscsi
  330  kubectl explain pv.spec.glusterfs
  331  kubectl describe pod pv-pod
  332  history
  333  sudo poweroff
  334  minikube start
  335  kubectl get pods -n kube-system
  336  minikube stop
  337  minikube delete
  338  minikube start --cni=calico
  339  kubectl get all
  340  kubectl get pods -n kube-system
  341  cd ckad/
  342  ls
  343  vim nwpolicy-complete-example.yaml
  344  kubectl apply -f nwpolicy-complete-example.yaml
  345  kubectl get networkpolicy,pods
  346  kubectl exec -it busybox -- wget --spider --timeout=1 nginx
  347  kubectl exec -it busybox -- bash
  348  kubectl exec -it busybox -- sh
  349  kubectl expose --help | less
  350  kubectl expose pod nginx --port=80
  351  kubectl get svc nginx
  352  kubectl exec -it busybox -- wget --spider --timeout=1 nginx
  353  kubectl get pods --show-labels
  354  kubectl describe networkpolicy
  355  kubectl label pod busybox access=true
  356  kubectl exec -it busybox -- wget --spider --timeout=1 nginx
  357  history
  358  kubectl create deploy mydb --image=mariadb
  359  kubectl get all
  360  source <(kubectl completion bash)
  361  kubectl describe pods mydb-6875fcdfbd-v9p6q
  362  kubectl logs mydb-6875fcdfbd-v9p6q
  363  kubectl set env deploy mydb MYSQL_ROOT_PASSWORD=password; kubectl get all
  364  kubectl get all
  365  kubectl get deployments.apps mydb -o yaml > mydb.yaml
  366  vim mydb.yaml
  367  kubectl delete deploy mydb
  368  vim varsfile
  369  kubectl create cm mydbvars --from-env-file=varsfile
  370  rm varsfile
  371  kubectl describe cm mydbvars
  372  kubectl create cm morevars --from-literal=MYSQL_DB=book
  373  kubectl describe cm morevars
  374  kubectl create deployment mydb --image=mariadb --replicas=3
  375  kubectl get all
  376  kubectl set env deploy mydb --from=configmap/mydbvars
  377  kubectl get all
  378  kubectl get deploy mydb -o yaml > mynewdb.yaml
  379  vim mynewdb.yaml
  380  history
  381  echo "hello world" > index.html
  382  kubectl create cm myindex --from-file=index.html
  383  kubectl describe cm myindex
  384  kubectl create deploy myweb --image=nginx --dry-run=client -o yaml > myweb.yaml
  385  vim myweb.yaml
  386  kubectl create -f myweb.yaml
  387  kubectl exec -it myweb -- cat /usr/share/nginx/html/index.html
  388  kubectl get pods
  389  kubectl exec -it myweb-54bd6bcb94-b7btg -- cat /usr/share/nginx/html/index.html
  390  ls -lrt
  391  vim mynewdb.yaml
  392  kubectl get pods
  393  history
  394  kubectl create cm mycm --from-literal=MYSQL_ROOT_PASSWORD=password
  395  kubectl create deploy mysqlserver --image=mysql
  396  kubectl set env --from=configmap/mycm deploy/mysqlserver
  397  kubectl get all
  398  kubectl create secret -h | less
  399  kubectl create secret generic -h | less
  400  kubectl create secret generic dbpw --from-literal=ROOT_PASSWORD=password
  401  kubectl describe secrets dbpw
  402  kubectl get secret dbpw -o yaml
  403  echo cGFzc3dvcmQ= | base64 -d
  404  kubectl get deploy
  405  kubectl delete deploy mydb,mysqlserver
  406  kubectl delete deploy mydb
  407  kubectl delete deploy mysqlserver
  408  kubectl create deploy mynewdb --image=mariadb
  409  kubectl set env deploy mynewdb --from=secret/dbpw --prefix=MYSQL_
  410  kubectl api-resources | less
  411  kubectl get pods -n kube-system
  412  kubectl config view
  413  kubectl --v=10 get pods
  414  kubectl proxy --port=8001 &
  415  curl http://localhost:8001
  416  kubectl get deploy
  417  curl http://localhost:8001/version
  418  curl http://localhost:8001/api/v1/namespaces/default/pods
  419  kubectl get pods
  420  curl http://localhost:8001/api/v1/namespaces/default/pods/nginx
  421  curl http://localhost:8001/api/v1/namespaces/default/pods/nginx/
  422  kubectl get pods
  423  curl -XDELETE http://localhost:8001/api/v1/namespaces/default/pods/nginx
  424  kubectl get pods
  425  cat ~/.kube/config
  426  kubectl auth can-i get pods
  427  kubectl auth can-i get pods --as [email protected]
  428  kubectl get pods
  429  kubectl get pods busybox -o yaml
  430  kubectl get serviceaccount
  431  kubectl get serviceaccount -A
  432  vim mypod.yaml
  433  kubectl create -f mypod.yaml
  434  kubectl get pods mypod -o yaml | less
  435  kubectl exec -it mypod -- sh
  436  vim mysa.yaml
  437  kubectl create -f mysa.yaml
  438  vim list-pods.yaml
  439  kubectl apply -f list-pods.yaml
  440  vim list-pods-mysa-binding.yaml
  441  kubectl create -f list-pods-mysa-binding.yaml
  442  vim mysapod.yaml
  443  kubectl create -f mysapod.yaml
  444  kubectl exec -it mysapod -- sh
  445  kubectl create role --help
  446  kubectl create rolebinding --help
  447  ./countdown 12
  448  cd
  449  git clone https://github.com/helm/helm/releases
  450  wget https://get.helm.sh/helm-v3.7.2-linux-arm64.tar.gz
  451  ls
  452  tar xvf helm-v3.7.2-linux-arm64.tar.gz
  453  wget https://get.helm.sh/helm-v3.7.2-linux-amd64.tar.gz
  454  tar xvf helm-v3.7.2-linux-amd64.tar.gz
  455  cd linux-amd64/
  456  ls
  457  sudo mv helm /usr/local/bin
  458  helm version
  459  helm repo add kubernetes-dashboard https://kubernetes.github.io/dashboard/
  460  helm install kubernetes-dashboard kubernetes-dashboard/kubernetes-dashboard
  461  helm repo add bitnami https://charts.bitnami.com/bitnami
  462  helm repo list
  463  helm search repo bitnami
  464  helm repo update
  465  helm install bitnami/mysql --generate-name
  466  kubectl get all
  467  helm show chart bitnami/mysql
  468  helm show all bitnami/mysql
  469  helm list
  470  helm status mysql-1642009227
  471  history
  472  helm show values bitnami/nginx
  473  helm pull bitnami/nginx
  474  tar xvf nginx-9.7.1.tgz
  475  vim nginx/values.yaml
  476  helm template --debug nginx
  477  helm install -f nginx/values.yaml mynginx nginx/
  478  helm list
  479  kubectl create deploy blue-nginx --image=nginx:1.14 --replicas=3
  480  kubectl expose blue-nginx --port=80 --name=ngnginx
  481  kubectl expose deploy blue-nginx --port=80 --name=ngnginx
  482  kubectl get deploy,pods,svc --show-labels
  483  kubectl get deploy,pods,svc --show-labels --selector app=blue-nginx
  484  kubectl describe svc ngnginx
  485  kubectl get deploy blue-nginx -o yaml > green-nginx.yaml
  486  vim green-nginx.yaml
  487  kubectl create -f green-nginx.yaml
  488  kubectl get deploy,pods,svc --show-labels --selector app=blue-nginx
  489  kubectl get deploy,pods,svc --show-labels --selector app=green-nginx
  490  kubectl delete svc ngnginx; kubectl expose deploy green-nginx --port=80 --name=ngnginx
  491  kubectl get pods -o wide
  492  kubectl describe svc ngnginx
  493  kubectl get all --selector app=blue-nginx
  494  kubectl scale deploy blue-nginx --replicas=0
  495  kubectl get all --selector app=blue-nginx
  496  history
  497  cd ../ckad/
  498  ./countdown 12
  499  kubectl create deploy old-nginx --image=nginx:1.14 --replicas=3 --dry-run=client -o yaml > oldnginx.yaml
  500  vim oldnginx.yaml
  501  kubectl create -f oldnginx.yaml
  502  kubectl expose deploy old-nginx --name=oldnginx --port=80 --selector type=canary
  503  kubectl get svc
  504  kubectl get endpoints
  505  minikube ssh
  506  kubectl cp old-nginx-5b4869b6fd-2v95q:/usr/share/nginx/html/index.html index.html
  507  vim index.html
  508  kubectl create cm canary --from-file=index.html
  509  kubectl describe cm canary
  510  vim canary.yaml
  511  kubectl create -f canary.yaml
  512  kubectl get svc
  513  kubectl get endpoints
  514  minikube ssh
  515  kubectl get deploy
  516  kubectl scale new-nginx --replicas=3
  517  kubectl scale deploy new-nginx --replicas=3
  518  kubectl get deploy
  519  kubectl scale deployment old-nginx --replicas=0
  520  history
  521  vim crd-object.yaml
  522  kubectl create -f crd-object.yaml
  523  kubectl api-resources | grep backup
  524  vim crd-backup.yaml
  525  kubectl create -f crd-backup.yaml
  526  kubectl get backups
  527  vim busybox-ready.yaml
  528  kubectl create -f busybox-ready.yaml
  529  kubectl get pods
  530  kubectl describe pods busybox-ready
  531  kubectl edit pods busybox-read
  532  kubectl edit pods busybox-ready
  533  kubectl exec -it busybox-ready -- sh
  534  kubectl get pods
  535  vim nginx-probes.yaml
  536  kubectl create -f nginx-probes.yaml
  537  kubectl get pods
  538  history