CKAD day3 dec23

student@student-virtual-machine:~/ckad$ history
    1  sudo apt install -y git
    2  git clone https://github.com/sandervanvugt/ckad
    3  cd ckad
    4  ls
    5  top
    6  kubectl get all
    7  cd ckad/
    8  ./countdown 2
    9  kubectl run mybb --image=busybox
   10  kubectl get pods
   11  ./countdown 2
   12  ./countdown 12
   13  vim lab2b.txt
   14  ./countdown 1
   15  ./countdown 4
   16  ./countdown 12
   17  ./countdown 5
   18  ./countdown 1
   19  ./countdown 12
   20  ./countdown 5
   21  ./countdown 13
   22  ./countdown 1
   23  minikube start --vm-driver=docker --cni=calico
   24  ls
   25  history
   26  kubectl get all
   27  minikube ssh
   28  kubectl get all
   29  kubectl create deployment firstningx --image=nginx
   30  kubectl get all
   31  ./countdown 13
   32  kubectl -h
   33  kubectl create -h | less
   34  kubectl create deployment -h | less
   35  kubectl completion -h | less
   36  source <(kubectl completion bash)
   37  kubectl get all
   38  history
   39  cd
   40  cd .kube/
   41  ls
   42  less config
   43  kubectl config view
   44  cd
   45  cd ckad/
   46  l
   47  cd dockerfile/
   48  ls
   49  vim Dockerfile
   50  sudo apt install -y vim
   51  nano Dockerfile
   52  docker build -t helloworld .
   53  docker images
   54  docker run helloworld
   55  docker save helloworld halloworld.tar
   56  docker save helloworld
   57  docker save helloworld -o helloworld.tar
   58  ls -l helloworld.tar
   59  kubectl run -h | less
   60  kubectl run mynginx --image=nginx
   61  kubectl get pods
   62  kubectl get pods mynginx -o yaml | less
   63  kubectl describe pod mynginx | less
   64  history
   65  kubectl get pods
   66  kubectl describe pod mybb
   67  echo BONUSLAB: start busybox as a pod and make sure it runs the command "sleep 3600" while starting
   68  kubectl run -h | less
   69  kubectl run sleepybox --image=busybox -- sleep 3600
   70  kubectl get pods
   71  kubectl delete pod mybb
   72  history
   73  kubectl run bbox --image=busybox
   74  kubectl get pods
   75  kubectl run -h | less
   76  kubectl run gobox --image=busybox --restart=never
   77  kubectl run -h | less
   78  kubectl run gobox --image=busybox --restart=Never
   79  kubectl get pods
   80  kubectl get pods gobox -o yaml | less
   81  kubectl get pods bbox -o yaml | less
   82  history
   83  kubectl get pods bbox -o yaml | less
   84  ls
   85  cd ..
   86  ls
   87  kubectl run mynginx --image=nginx --dry-run=client -o yaml
   88  kubectl run mynginx --image=nginx --dry-run=client -o yaml > mynginx.yaml
   89  vim mynginx.yaml
   90  kubectl explain pods
   91  kubectl explain pods.spec | less
   92  vim mynginx.yaml
   93  kubectl create -f mynginx.yaml
   94  kubectl delete pod mynginx
   95  kubectl create -f mynginx.yaml
   96  kubectl delete -f mynginx.yaml
   97  kubectl apply -f mynginx.yaml
   98  vim mynginx.yaml
   99  kubectl apply -f mynginx.yaml
  100  vim mynginx.yaml
  101  kubectl apply -f mynginx.yaml
  102  vim mynginx.yaml
  103  kubectl replace -f mynginx.yaml
  104  history
  105  kubectl run bbbox --image=busybox -- sleep 3600 --dry-run=client -o yaml
  106  kubectl get pods
  107  kubectl describe pods bbbox
  108  kubectl logs bbbox
  109  kubectl delete pods bbbox
  110  kubectl run bbbox --image=busybox --dry-run=client -o yaml -- sleep 2600
  111  history
  112  history | grep git
  113  vim sidecar.yaml
  114  kubectl apply -f sidecar.yaml
  115  kubectl get pods
  116  kubectl exec -it sidecar-pod -c sidecar -- /bin/bash
  117  vim init-example1.yaml
  118  kubectl apply -f init-example1.yaml
  119  kubectl get pods
  120  kubectl describe pod init-demo1
  121  vim init-example2.yaml
  122  kubectl apply -f init-example2.yaml
  123  kubectl get pods
  124  vim init-example2.yaml
  125  history
  126  kubectl get pods
  127  kubectl get pods -A
  128  kubectl get all
  129  kubectl get all -A
  130  kubectl get ns
  131  kubectl create ns secret
  132  kubectl get ns
  133  kubectl run pod busybox -n secret -- sleep infinity
  134  kubectl run pod --image=busybox secretbox -n secret -- sleep infinity
  135  kubectl get all
  136  kubectl get all -n secret
  137  kubectl get pods
  138  kubectl config set-context --current -n secret
  139  kubectl config set-context --current --namespace=secret
  140  kubectl get pods
  141  kubectl config set-context --current -ns default
  142  kubectl config set-context --current --namespace=default
  143  kubectl get pods
  144  kubectl config set-context -h | less
  145  kubectl describe ns secret
  146  kubectl get pods
  147  kubectl exec -it bbox -- sh
  148  kubectl exec -it sleepybox -- sh
  149  kubectl get pods
  150  kubectl exec -it firstningx-5f489b9c69-lbp9z -- sh
  151  kubectl run faildb --image=mariadb
  152  kubectl get pods
  153  kubectl describe pod faildb
  154  kubectl logs faildb
  155  kubectl run -h | less
  156  kubectl run dodb --image=mariadb --env=MARIADB_ROOT_PASSWORD=password
  157  kubectl get pods
  158  kubectl delete pod faildb
  159  history
  160  vim securitycontextdemo2.yaml
  161  kubectl apply -f securitycontextdemo2.yaml
  162  kubectl exec -it security-context-demo -- sh
  163  cat securitycontextdemo2.yaml
  164  kubectl explain pod.spec.securityContext | less
  165  vim securitycontextdemo.yaml
  166  kubectl apply -f securitycontextdemo.yaml
  167  kubectl get pods
  168  kubectl describe pod nginxsecure
  169  history
  170  kubectl create job onejob --image=busybox -- date
  171  kubectl get jobs,pods
  172  kubectl get jobs onejob -o yaml | less
  173  kubectl delete job onejob
  174  kubectl get jobs,pods
  175  kubectl create job mynewjob --image=busybox --dry-run=client -o yaml -- sleep 5 > mynewjob.yaml
  176  vim mynewjob.yaml
  177  kubectl apply -f mynewjob.yaml
  178  kubectl get jobs,pods
  179  history
  180  kubectl get jobs,pods
  181  kubectl create cronjob -h | less
  182  kubectl create cronjob runme --image=busybox --schedule="1/* * * * *" -- echo greetings from the cluster
  183  kubectl create cronjob -h | less
  184  kubectl create cronjob my-job --image=busybox --schedule="*/1 * * * *" -- date
  185  kubectl get cronjobs,jobs,pods
  186  kubectl logs my-job-28373240-4pmqs
  187  kubectl get cronjobs,jobs,pods
  188  kubectl delete cronjobs.batch my-job
  189  kubectl api-resources | less
  190  history
  191  git pull
  192  cd labs/
  193  ls
  194  ./ckad-lab5-grade.sh
  195  kubectl create cronjob
  196  ./ckad-lab5-grade.sh
  197  kubectl create cronjob hellojob --image busybox --schedule "*/5 * * * *" -- echo hello
  198  ./ckad-lab5-grade.sh
  199  cd ..
  200  kubectl get cronjobs
  201  kubectl create job --from=cronjob hellojob
  202  kubectl create job testjob --from=cronjob hellojob
  203  kubectl create job -h | less
  204  kubectl create job testjob --from=hellojob
  205  kubectl create job testjob --from=cronjob
  206  kubectl create job testjob --from=cronjob/hellojob
  207  vim frontend-resources.yaml
  208  kubectl apply -f frontend-resources.yaml
  209  kubectl get pods
  210  kubectl describe pod frontend
  211  ls
  212  docker login
  213  ls ~/.docker/config.json -l
  214  kubectl create secret docker-registry dockercreds --from-file=.dockerconfigjson=/home/student/.docker/config.json
  215  kubectl get secrets
  216  kubectl describe secrets dockercreds
  217  vim frontend-resources.yaml
  218  kubectl apply -f frontend-resources.yaml
  219  kubectl get pods
  220  kubectl delete pod frontend
  221  kubectl apply -f frontend-resources.yaml
  222  kubectl get pods
  223  kubectl describe pod frontend
  224  kubectl get pods
  225  history
  226  kubectl get sa
  227  kubectl get sa default -o yaml
  228  kubectl patch serviceaccount default -p '{"imagePullSecrets":[{"name":"dockercreds"}]}'
  229  kubectl get sa default -o yaml
  230  kubectl run testpod --image=nginx:1.17
  231  kubectl get pods testpod
  232  ls
  233  less RESOURCE.TXT
  234  kubectl delete -f frontend-resources.yaml
  235  vim frontend-resources.yaml
  236  kubectl apply -f frontend-resources.yaml
  237  kubectl get pods frontend
  238  kubectl describe pods frontend
  239  kubectl delete -f frontend-resources.yaml
  240  labs/ckad-lab6-grade.sh
  241  kubectl run lab6pod --image=nginx
  242  labs/ckad-lab6-grade.sh
  243  kubectl delete pod lab6pod
  244  kubectl run lab6pod --image=nginx --dry-run=client -o yaml > lab6pod.yaml
  245  vim lab6pod.yaml
  246  kubectl apply -f lab6pod.yaml
  247  labs/ckad-lab6-grade.sh
  248  kubectl get pods lab6pod -o yaml
  249  labs/ckad-lab6-grade.sh
  250  kubectl apply -f lab6pod.yaml
  251  vim busybox-ready.yaml
  252  kubectl apply -f busybox-ready.yaml
  253  kubectl get pods
  254  kubectl describe pods busybox-ready
  255  kubectl edit pods busybox-ready
  256  kubectl exec -it busybox-ready -- touch /tmp/nothing
  257  kubectl get pods
  258  kubectl create deploy myweb --image=nginx --replicas=3
  259  kubectl describe deployments.apps myweb
  260  kubectl get deploy,rs,pods
  261  kubectl delete pod myweb-9794cbc77-5nqhl
  262  kubectl get deploy,rs,pods
  263  cat redis-deploy.yaml
  264  kubectl apply -f redis-deploy.yaml
  265  cat redis-deploy.yaml
  266  kubectl api-resources | less
  267  vim redis-deploy.yaml
  268  kubectl apply -f redis-deploy.yaml
  269  kubectl api-versions
  270  kubectl get deploy
  271  kubectl edit deployments.apps redis
  272  kubectl get deploy
  273  kubectl get deploy --show-labels
  274  kubectl get all --selector app=redis
  275  kubectl delete rs redis-65fbbd8f94
  276  kubectl get all --selector app=redis
  277  kubectl scale deployment redis --replicas=2
  278  kubectl get all --selector app=redis
  279  kubectl create deploy nginx-lab7 --image=nginx --replicas=3
  280  kubectl explain deploy.spec | less
  281  kubectl explain deploy.spec.strategy | less
  282  kubectl create deploy nginxup --image=nginx:1.14
  283  kubectl get al --selector app=nginx
  284  kubectl get all --selector app=nginx
  285  kubectl get all --selector app=nginxup
  286  kubectl scale deployment nginxup --replicas=5
  287  kubectl set image deploy nginxup nginx=nginx:1.17
  288  kubectl get deploy nginxup -o yaml | le
  289  kubectl set image deploy nginxup nginx=nginx:1.19
  290  kubectl get all --selector app=nginxup
  291  history
  292  kubectl explain deploy.spec.strategy | less
  293  kubectl explain deploy.spec.strategy.rollingUpdate | less
  294  kubectl get deploy myweb -o yaml | less
  295  kubectl get deployments.apps redis -o yaml | less
  296  kubectl create deploy bluelabel --image=nginx
  297  kubectl label deployments.apps bluelabel state=demo
  298  kubectl get deploy --show-labels
  299  kubectl get deploy --selector state=demo
  300  kubectl get all --selector app=bluelabel --show-labels
  301  kubectl describe deployments.apps bluelabel
  302  kubectl describe pod bluelabel-59d6bcf7ff-5th78
  303  kubectl label pods bluelabel-59d6bcf7ff-5th78 app-
  304  kubectl get all | grep blue
  305  kubectl get all --show-labels | grep blue
  306  kubectl scale deployment bluelabel --replicas=4
  307  kubectl set env deploy bluelabel type=blended
  308  kubectl get all --selector app=bluelabel
  309  vim rolling.yaml
  310  kubectl apply -f rolling.yaml
  311  kubectl rollout history deployment
  312  kubectl edit deployments.apps rolling-nginx
  313  kubectl rollout history deployment rolling-nginx
  314  kubectl rollout history deployment rolling-nginx --revision=2
  315  kubectl rollout history deployment rolling-nginx --revision=1
  316  kubectl rollout undo deployment rolling-nginx --to-revision=1
  317  kubectl get all
  318  history
  319  kubectl explain deploy.spec | less
  320  kubectl edit deployments.apps bluelabel
  321  kubectl get all --selector  app=bluelabel
  322  kubectl get pods -n kube-system
  323  kubectl get svc -n kube-system
  324  kubectl exec bluelabel-798bf758fc-n66bb -- cat /etc/resolv.conf
  325  kubectl create deploy nginxsvc --image=nginx
  326  kubectl scale deployment nginxsvc --replicas=3
  327  kubectl expose deployment nginxsvc --port=80
  328  kubectl get all --selector app=nginxsvc
  329  kubectl get pods --selector app=nginxsvc
  330  kubectl get pods --selector=app=nginxsvc -o wide
  331  kubectl describe svc nginxsvc
  332  kubectl get endpoints
  333  kubectl get svc
  334  curl 10.104.25.69
  335  minikube ssh
  336  minikube ip
  337  kubectl edit svc nginxsvc
  338  kubectl get svc
  339  curl 192.168.49.2:32000
  340  kubectl run testpod --image=busybox -- sleep 3600
  341  kubectl describe pods testpod
  342  kubectl delete pod testpod
  343  kubectl run testpod --image=busybox -- sleep 3600
  344  kubectl create ns other
  345  kubectl run newginx -n other
  346  kubectl run newginx --image=nginx -n other
  347  kubectl expose -n other pod newginx --port=80
  348  kubectl get svc -A
  349  kubectl get svc,pods -n kube-system
  350  kubectl exec -it testpod -- cat /etc/resolv.conf
  351  kubectl exec -it testpod -- nslookup nginxsvc
  352  kubectl exec -it testpod -- nslookup newginx
  353  kubectl exec -it testpod -- nslookup newginx.other.svc.cluster.local
  354  minikube addons list
  355  minikube addons enable ingress
  356  kubectl get ns
  357  kubectl get all -n ingress-nginx
  358  kubectl get all --selector app=nginxsvc
  359  curl 192.168.49.2:32000
  360  kubectl create ing -h | less
  361  kubectl create ing nginxsvc-ingress --rule="/=nginxsvc:80" --rule="/hello=newdep:8080"
  362  kubectl describe ing nginxsvc-ingress
  363  sudo vim /etc/hosts
  364  kubectl get ingress
  365  curl nginxsvc.info
  366  curl nginxsvc.info/hello
  367  kubectl create deploy newdep --image=gcr.io/google-samples/hello-app:2.0
  368  kubectl expose deployment newdep --port=8080
  369  kubectl describe ing nginxsvc-ingress
  370  curl nginxsvc.info/hello
  371  history
  372  ls labs
  373  labs/ckad-lab6-grade.sh
  374  kubectl get pods lab6pod -o yaml
  375  kubectl get pods lab6pod -o yaml | grep '512Mi'
  376  kubectl get ing
  377  minikube start
  378  sudo reboot
  379  cd ckad/
  380  ./countdown 3
  381  ./countdown 12
  382  cd ckad
  383  ls
  384  ./minikube-docker-setup.sh
  385  minikube status
  386  minikube start
  387  source <(kubectl completion bash)
  388  kubectl get ing
  389  kubectl describe ing nginxsvc-ingress
  390  kubectl describe svc nginxsvc
  391  source <(kubectl completion bash)
  392  kubectl get deployments.apps nginxsvc -o yaml | less
  393  curl nginxsvc.info
  394  kubectl create quota -h | less
  395  kubectl create quota --hard=memory=768Mi -n secret
  396  kubectl create quota secretquota --hard=memory=768Mi -n secret
  397  kubectl describe ns secret
  398  echo $(( 768 / 4 ))
  399  cd ckad/
  400  vim nwpolicy-complete-example.yaml
  401  kubectl apply -f nwpolicy-complete-example.yaml
  402  kubectl describe networkpolicies access-nginx
  403  kubectl expose pod nginx --port=80
  404  kubectl exec -it busybox -- wget --spider --timeout=1 nginx
  405  kubectl label pod busybox access=true
  406  kubectl exec -it busybox -- wget --spider --timeout=1 nignx
  407  kubectl exec -it busybox -- wget --spider --timeout=1 nginx
  408  kubectl label pod busybox access-
  409  kubectl exec -it busybox -- wget --spider --timeout=1 nginx
  410  kubectl describe networkpolicies access-nginx
  411  kubectl get pods --show-labels
  412  kubectl describe networkpolicies access-nginx
  413  history
  414  kubectl delete deploy mydb
  415  kubectl create deploy mydb --image=mariadb
  416  kubectl get pods | grep mydb
  417  kubectl set env deploy mydb MYSQL_ROOT_PASSWORD=password
  418  kubectl get deploy mydb -o yaml > mydb.yaml
  419  vim mydb.yaml
  420  vim varsfile
  421  kubectl create cm mydbvars --from-env-file=varsfile
  422  rm -f varsfile
  423  kubectl get cm mydbvars -o yaml
  424  kubectl delete mydb
  425  kubectl delete deploy mydb
  426  kubectl create deploy mydb --image=mariadb --replicas=3
  427  kubectl get all --selector app=mydb
  428  kubectl set env deploy/mydb --from=configmap/mydbvars
  429  kubectl get all --selector app=mydb
  430  kubectl get deployments.apps mydb -o yaml | less
  431  history
  432  kubectl create secret -h | less
  433  kubectl create secret generic dbpw --from-literal=ROOT_PASSWORD=password
  434  kubectl describe secret dbpw
  435  kubectl get secrets dbpw -o yaml
  436  echo cGFzc3dvcmQ= | base64 -d
  437  kubectl create deploy mynewdb --image=mariadb
  438  kubectl set env deploy mynewdb --from=secret/dbpwd --prefix=MARIADB_
  439  kubectl set env deploy mynewdb --from=secret/dbpw --prefix=MARIADB_
  440  kubectl get deploy mynewdb -o yaml | less
  441  kubectl api-resources | less
  442  kubectl get deploy mynewdb -o yaml > dbdb.yaml
  443  vim dbdb.yaml
  444  kubectl apply -f dbdb.yaml
  445  kubectl get all --selector app=dbdb
  446  kubectl exec -it dbdb-d9bbb979-925c4 -- echo set
  447  kubectl exec -it dbdb-d9bbb979-925c4 -- set
  448  vim dbdb.yaml
  449  kubectl exec -it dbdb-d9bbb979-925c4 -- echo $ANSWER_TO_DB_QUESTION
  450  kubectl exec -it dbdb-d9bbb979-925c4 -- bash
  451  history
  452  kubectl api-resources | less
  453  kubectl get pods -n kube-system
  454  kubectl proxy --port=8001 &
  455  kubectl create deploy curlginx --image=nginx --replicas=3
  456  curl http://localhost:8001/version
  457  curl http://localhost:8001/api/v1/namespaces/default/pods
  458  curl http://localhost:8001/api/v1/namespaces/default/pods/testpod/
  459  curl --XDELETE http://localhost:8001/api/v1/namespaces/default/pods/testpod/
  460  curl -X DELETE http://localhost:8001/api/v1/namespaces/default/pods/testpod/
  461  kubectl get pods | grep test
  462  kubectl config view
  463  kubectl get pods sleepybox -o yaml | less
  464  kubectl get sa
  465  kubectl get sa default -o yaml
  466  history
  467  kubectl get clusterroles
  468  kubectl describe clusterroles view
  469  kubectl get sa -n kube-system
  470  kubectl get sa -n kube-system |grep calic
  471  kubectl get clusterrole -n kube-system |grep calic
  472  kubectl describe -n kube-system clusterrole calico-node
  473  kubectl get clusterrolebinding -n kube-system |grep calic
  474  kubectl describe clusterrolebinding -n kube-system calico-node
  475  vim mypod.yaml
  476  kubectl apply -f mypod.yaml
  477  kubectl get pods mypod -o yaml
  478  kubectl exec -it mypod -- sh
  479  cat mysa.yaml
  480  kubectl create sa mysa
  481  kubectl get pods -o yaml mypod | grep -i service
  482  vim list-pods.yaml
  483  kubectl apply -f list-pods.yaml
  484  kubectl get roles
  485  vim list-pods-mysa-binding.yaml
  486  kubectl create -f list-pods-mysa-binding.yaml
  487  vim mysapod.yaml
  488  kubectl apply -f mysapod.yaml
  489  kubectl exec -it mysapod -- bash
  490  kubectl exec -it mysapod -- sh
  491  history
  492  kubectl get clusterroles | grep view
  493  kubectl get clusterrolebindings | grep view
  494  kubectl describe clusterrolebinding system:public-info-viewer
  495  kubectl create -h | less
  496  kubectl create clusterrole -h
  497  kubectl create clusterrole -h | less
  498  kubectl create clusterrolebinding -h | less
  499  #kubectl create clusterrolebinding cluster-view --clusterrole=view --serviceaccount=viewer
  500  kubectl create sa viewer
  501  kubectl create clusterrolebinding cluster-view --clusterrole=view --serviceaccount=viewer
  502  kubectl create clusterrolebinding cluster-view --clusterrole=view --serviceaccount=default:viewer
  503  kubectl set serviceaccount -h | less
  504  kubectl set serviceaccount deployment nginxsvc viewer
  505  kubectl get deploy -o yaml | less
  506  ls
  507  vim securitycontextdemo.yaml
  508  vim securitycontextdemo2.yaml
  509  cd ../Downloads/
  510  ls
  511  tar xvf helm-v3.13.2-linux-amd64.tar.gz
  512  sudo mv linux-amd64/helm /usr/local/bin/
  513  helm version
  514  helm repo add bitnami https://charts.bitnami.com/bitnami
  515  helm repo list
  516  helm search repo bitnami
  517  helm search repo file
  518  helm search repo nginx --versions
  519  helm install bitnami/mysql --generate-name
  520  kubectl get all
  521  helm show chart bitnami/mysql
  522  helm show all bitnami/mysql
  523  helm list
  524  helm status mysql-1702490239
  525  helm repo list
  526  helm show values bitnami/nginx
  527  helm show values bitnami/nginx | wc -l
  528  helm show values bitnami/nginx | grep commonLabels
  529  helm show values bitnami/nginx | grep replicaCount
  530  cd
  531  cd ckad
  532  vim values.yaml
  533  helm install bitnami/nginx --generate-name --values values.yaml
  534  helm list
  535  helm get values nginx-1702490648
  536  kubectl get deploy | grep 1702
  537  kubectl get deploy --show-labels | grep 1702
  538  history
  539  kubectl create deploy blue-nginx --image=nginx:1.14 --replicas=3
  540  kubectl expose deploy blue-nginx --port=80 --name=bgnginx
  541  kubectl get all --selector app=bgnginx
  542  kubectl get all --selector app=blue-nginx
  543  kubectl get deploy blue-nginx -o yaml > green-nginx.yaml
  544  vim green-nginx.yaml
  545  kubectl apply -f green-nginx.yaml
  546  kubectl get pods | grep -e blue -e green
  547  kubectl delete svc bgnginx; kubectl expose deploy green-nginx --port=80 --name=bgnginx
  548  kubectl get pods -o wide | grep -e blue -e green
  549  kubectl describe svc bgnginx
  550  kubectl delete deployments.apps blue*
  551  kubectl delete deployments.apps blue-nginx
  552  kubectl create deployment old-nginx --image=nginx:1.14 --replicas=3 --labels type=canary --dry-run=client -o yaml > ~/oldnginx.yaml
  553  kubectl create deployment old-nginx --image=nginx:1.14 --replicas=3 --label type=canary --dry-run=client -o yaml > ~/oldnginx.yaml
  554  kubectl create deployment old-nginx --image=nginx:1.14 --replicas=3 --dry-run=client -o yaml > ~/oldnginx.yaml
  555  vim old-nginx.yaml
  556  kubectl apply -f old-nginx.yaml
  557  kubectl expose deployment old-nginx --name=oldnxin --port=80 --selector type=canary
  558  kubectl get svc
  559  kubectl describe svc oldnxin
  560  kubectl edit svc oldnxin
  561  kubectl get svc
  562  curl 192.168.49.2:30490
  563  kubectl cp old-nginx-5d6fc48749-wmt6w:/usr/share/nginx/html/index.html .
  564  kubectl cp old-nginx-5d6fc48749-wmt6w:/usr/share/nginx/html/index.html index.html
  565  vim index.html
  566  kubectl create cm canary --from-file=index.html
  567  kubectl describe cm canary
  568  vim canary.yaml
  569  kubectl apply -f canary.yaml
  570  kubectl get endpoints
  571  curl 192.168.49.2:30490
  572  kubectl get deploy
  573  kubectl scale deployment new-nginx --replicas=3
  574  kubectl scale deployment old-nginx --replicas=0
  575  kubectl explain pod.spec.volumes | less
  576  cat morevolumes.yaml
  577  kubectl apply -f morevolumes.yaml
  578  cat morevolumes.yaml
  579  kubectl get pods morevol2
  580  kubectl exec -it morevol2 -c centos1 -- touch /centos1/test
  581  kubectl exec -it morevol2 -c centos2 -- ls /centos2
  582  kubectl delete pod morevol2
  583  cat pv.yaml
  584  kubectl apply -f pv.yaml
  585  kubectl get pv
  586  vim pvc.yaml
  587  kubectl apply -f pvc.yaml
  588  kubectl get pv,pvc
  589  kubectl get storageclass
  590  vim pvc-pod.yaml
  591  kubectl apply -f pvc-pod.yaml
  592  kubectl exec nginx-pvc-pod -- touch /usr/share/nginx/html/testfile
  593  minikube ssh
  594  history