kube3weeks all days july22

student@control:~$ history
    1  cd cka
    2  vim kubeadm-config.yaml
    3  crictl pull nginx
    4  sudo crictl pull nginx
    5  sudo vim /etc/hosts
    6  lscpu
    7  free -m
    8  df -h
    9  git clone https://github.com/sandervanvugt/cka
   10  cd cka
   11  ls
   12  vim setup-container.sh
   13  ./setup-container.sh
   14  ./setup-kubetools.sh
   15  sudo ./setup-kubetools.sh
   16  history
   17  sudo -i
   18  mkdir -p $HOME/.kube
   19  ls -l ~/.kube/config
   20  kubectl get nodes
   21  kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
   22  kubectl get nodes
   23  ./counter.sh 10
   24  source <(kubectl completion bash)
   25  kubectl create deploy myfirstapp --image=nginx --replicas=3
   26  kubectl get all
   27  kubectl delete pod myfirstapp-674f5f9569-dhqjl
   28  kubectl get all
   29  kubectl run lonelypod --image=nginx
   30  kubectl get all
   31  kubectl delete pod lonelypod
   32  kubectl get all
   33  ./counter.sh 15
   34  history | grep init
   35  sudo -i
   36  history
   37  kubectl api-resources | less
   38  kubectl api-resources | wc
   39  kubectl get pods
   40  kubectl get pods myfirstapp-674f5f9569-lr6l9 -o yaml | less
   41  kubectl get pods -o wide
   42  kubectl explain pod
   43  kubectl explain pod.status | less
   44  kubectl explain pod.spec | less
   45  kubectl run mynginx --image=nginx --dry-run=client -o yaml
   46  kubectl run mynginx --image=nginx --dry-run=client -o yaml > mynginx.yaml
   47  vim mynginx.yaml
   48  kubectl explain pods.spec | less
   49  vim mynginx.yaml
   50  kubectl apply -f mynginx.yaml
   51  kubectl get pods
   52  kubectl delete -f mynginx.yaml
   53  ./counter.sh 12
   54  cd ..
   55  git clone https://github.com/sandervanvugt/kube3weeks
   56  cd kube3weeks/
   57  ls
   58  vim multicontainer.yaml
   59  kubectl create -f multicontainer.yaml
   60  kubectl get pods
   61  vim init-containers.yaml
   62  kubectl create -f init-containers.yaml
   63  kubectl get pods
   64  kubectl create ns myns
   65  kubectl get ns
   66  kubectl get pods -n kube-system
   67  kubectl config view
   68  kubectl config set-context --namespace=myns
   69  kubectl config set-context --current --namespace=myns
   70  kubectl config view
   71  kubectl get all
   72  kubectl config set-context --current --namespace=default
   73  kubectl get pods
   74  kubectl get pods -n kube-system
   75  kubectl create ns secret
   76  kubectl run secretapp --image=nginx -n secret
   77  kubectl get pods -n secret
   78  kubectl get pods -A
   79  kubectl create deploy mydb --image=mariadb
   80  kubectl get all --selector app=mydb
   81  kubectl describe pod mydb-6785d644c6-bfk8m
   82  kubectl logs mydb-6785d644c6-bfk8m
   83  kubectl run busybox --image=busybox
   84  kubectl get pods
   85  kubectl describe pod busybox | less
   86  kubectl logs busybox
   87  kubectl run --help | less
   88  kubectl create deploy finalginx --image=nginx --replicas=3
   89  kubectl get all --selector app=finalginx
   90  kubectl delete pod finalginx-765c79fdc4-
   91  kubectl delete pod finalginx-765c79fdc4-h2r66
   92  kubectl get all --selector app=finalginx
   93  kubectl scale deploy finalginx --replicas=4
   94  kubectl get all --selector app=finalginx
   95  kubectl scale deploy finalginx --replicas=0
   96  kubectl get all --selector app=finalginx
   97  kubectl scale deploy finalginx --replicas=3
   98  kubectl get all --selector app=finalginx
   99  kubectl scale deploy finalginx --replicas=0
  100  history
  101  sudo poweroff
  102  kubectl get all
  103  kubectl delete deploy myfirstapp
  104  kubectl delete deploy mydb
  105  ip a
  106  history
  107  kubectl create deploy finalginx --image=nginx --replicas=3
  108  kubectl create deploy startginx --image=nginx --replicas=3
  109  kubectl get all
  110  kubectl get all --selector app=startginx
  111  kubectl create deploy oldgninx --image=nginx:1.14 --replicas=3
  112  kubectl get all --selector app=oldginx
  113  kubectl get all --selector app=oldgninx
  114  kubectl set -h
  115  kubectl set image -h | less
  116  source <(kubectl completion bash)
  117  kubectl set image deploy oldgninx nginx=nginx:latest
  118  kubectl get all --selector app=oldgninx
  119  kubectl edit deployments.apps oldgninx
  120  kubectl get all --selector app=oldgninx
  121  kubectl rollout history deployment oldgninx
  122  kubectl get deployments.apps oldgninx -o yaml | less
  123  kubectl get deploy
  124  for i in finalginx oldgnix startginx; do kubectl delete deploy $i; done
  125  for i in finalginx oldgninx startginx; do kubectl delete deploy $i; done
  126  kubectl get deploy
  127  kubectl create deploy lnginx --image=nginx --replicas=3
  128  kubectl get all --show-labels
  129  kubectl get all --selector app=lnginx
  130  kubectl label pod lnginx-878f79888-zt2lb status=cold
  131  kubectl get all --show-labels
  132  kubectl create deploy daemondemo --image=nginx --dry-run=client -o yaml > daemondemo.yaml
  133  vim daemondemo.yaml
  134  kubectl apply -f daemondemo.yaml
  135  kubectl get all
  136  kubectl get all -o wide
  137  kubectl get daemonset -A
  138  kubectl create deploy nginxsvc --image=nginx
  139  kubectl scale deploy nginxsvc --replicas=3
  140  kubectl get all --selector app=nginxsvc
  141  kubectl expose deployment nginxsvc --port=80
  142  kubectl describe svc nginxsvc
  143  kubectl get pods -o wide
  144  kubectl get endpoints
  145  kubectl get svc
  146  curl 10.103.78.226
  147  kubectl edit svc nginxsvc
  148  kubectl get svc
  149  ip a
  150  kubectl get svc
  151  kubectl describe svc kubernetes
  152  kubectl get pods -n kube-system -o wide
  153  ps aux | grep 6443
  154  cd kube3weeks/
  155  ./countdown 13
  156  ls
  157  vim morevolumes.yaml
  158  kubectl create -f morevolumes.yaml
  159  kubectl describe pod morevol2
  160  kubectl pods
  161  kubectl get pods
  162  kubectl exec -it morevol2 -c centos1 -- touch /centos1/hellothere
  163  kubectl exec -it morevol2 -c centos2 -- ls /centos2/
  164  kubectl explain pods.spec.volumes | less
  165  vim pv.yaml
  166  kubectl create -f pv.yaml
  167  kubectl describe pv pv-volume
  168  ip a
  169  ls /
  170  vim pvc.yaml
  171  kubectl create -f pvc.yaml
  172  kubectl get pv,pvc
  173  vim pv-pod.yaml
  174  kubectl create -f pv-pod.yaml
  175  kubectl describe pod pv-pod
  176  kubectl exec -it pv-pod -- touch /usr/share/nginx/html/HELLofolks.txt
  177  kubectl exec -it pv-pod -- ls /usr/share/nginx/html/
  178  kubectl describe pv pv-volume
  179  ls /
  180  kubectl get pods -o wide
  181  vim pv-pvc-pod.yaml
  182  ./countdown 1
  183  history | grep git
  184  vim varsfile
  185  kubectl create cm mydbvars --from-env-file=varsfile
  186  kubectl describe cm mydbvars
  187  kubectl create deploy mydb --image=mariadb --replicas=3
  188  kubectl get all --selector app=mydb
  189  kubectl set env deploy mydb --from=configmap/mydbvars
  190  kubectl get all --selector app=mydb
  191  kubectl get deploy mydb -o yaml
  192  ./countdown 13
  193  echo hello world > index.html
  194  kubectl create cm myindex --from-file=index.html
  195  kubectl create cm mypasswd --from-file=/etc/passwd.txt
  196  kubectl create cm mypasswd --from-file=/etc/passwd
  197  kubectl describe cm mypasswd
  198  kubectl create deploy myweb --image=nginx
  199  kubectl edit deploy myweb
  200  kubectl exec -it myweb-7bf4b77454-4gctm -- cat /usr/share/nginx/html/*
  201  kubectl exec -it myweb-7bf4b77454-4gctm -- ls -l /usr/share/nginx/html/
  202  kubectl describe pod myweb-7bf4b77454-4gctm
  203  kubectl create secret -h
  204  kubectl create secret generic -h | less
  205  kubectl create secret generic testsecret --from-literal myvar=secret
  206  kubectl describe secrets testsecret
  207  kubectl get secret testsecret -o yaml
  208  echo c2VjcmV0 |  base64 -d
  209  kubectl secret docker-registry my-docker-credentials --docker-username=unclebob --docker-password=sword=secretpw --docker-email=uncle@bob.org --docker-server=myregistry:5000
  210  kubectl create secret docker-registry my-docker-credentials --docker-username=unclebob --docker-password=sword=secretpw --docker-email=uncle@bob.org --docker-server=myregistry:5000
  211  kubectl get secret my-docker-credentials
  212  kubectl get secret my-docker-credentials -o yaml
  213  echo yJhdXRocyI6eyJteXJlZ2lzdHJ5OjUwMDAiOnsidXNlcm5hbWUiOiJ1bmNsZWJvYiIsInBhc3N3b3JkIjoic3dvcmQ9c2VjcmV0cHciLCJlbWFpbCI6InVuY2xlQGJvYi5vcmciLCJhdXRoIjoiZFc1amJHVmliMkk2YzNkdmNtUTljMlZqY21WMGNIYz0ifX19 | base64 -d
  214  echo eyJhdXRocyI6eyJteXJlZ2lzdHJ5OjUwMDAiOnsidXNlcm5hbWUiOiJ1bmNsZWJvYiIsInBhc3N3b3JkIjoic3dvcmQ9c2VjcmV0cHciLCJlbWFpbCI6InVuY2xlQGJvYi5vcmciLCJhdXRoIjoiZFc1amJHVmliMkk2YzNkdmNtUTljMlZqY21WMGNIYz0ifX19 | base64 -d
  215  ip a
  216  cd ..
  217  ls -l
  218  tar xvf helm-v3.9.2-linux-amd64.tar.gz
  219  sudo cp linux-amd64/helm /usr/local/bin/
  220  helm version
  221  helm repo add kubernetes-dashboard https://kubernetes.github.io/dashboard/
  222  helm repo list
  223  kubectl get ns
  224  helm install kubernetes-dashboard kubernetes-dashboard/kubernetes-dashboard
  225  export POD_NAME=$(kubectl get pods -n default -l "app.kubernetes.io/name=kubernetes-dashboard,app.kubernetes.io/instance=kubernetes-dashboard" -o jsonpath="{.items[0].metadata.name}")
  226  bg
  227  ip a
  228  sudo ss -tulpen
  229  cp /etc/kubernetes/admin.conf /tmp/admin.conf
  230  sudo cp /etc/kubernetes/admin.conf /tmp/admin.conf
  231  sudo chmod 444 /tmp/admin.conf
  232  export POD_NAME=$(kubectl get pods -n default -l "app.kubernetes.io/name=kubernetes-dashboard,app.kubernetes.io/instance=kubernetes-dashboard" -o jsonpath="{.items[0].metadata.name}")
  233  helm repo add bitnami https://charts.bitnami.com/bitnami
  234  helm repo list
  235  helm install bitnami/mysql --generate-name
  236  kubectl get all
  237  kubectl get ns
  238  helm show chart bitnami/mysql
  239  helm show all bitnami/mysql
  240  helm list
  241  helm status mysql-1658503906
  242  helm list
  243  helm repo list
  244  helm show values kubernetes-dashboard/kubernetes-dashboard
  245  helm pull kubernetes-dashboard/kubernetes-dashboard
  246  ls
  247  tar xvf kubernetes-dashboard-5.7.0.tgz
  248  cd kubernetes-dashboard/
  249  ls
  250  vim values.yaml
  251  helm remove kubernetes-dashboard
  252  helm uninstall kubernetes-dashboard
  253  cd ..
  254  helm install -f kubernetes-dashboard/values.yaml kubernetes-dashboard kubernetes-dashboard/
  255  kubectl get pods
  256  kubectl edit svc kubernetes-dashboard
  257  kubectl get svc
  258  echo for dashboard use --enable-skip-login in the deployment spec
  259  history
  260  sudo poweroff
  261  ip a
  262  historuy
  263  history
  264  kubectl get svc
  265  ip a
  266  sudo cp /etc/kubernetes/admin.conf .kube/config
  267  kubectl get svc
  268  rm .kube/config
  269  kubectl get svc
  270  sudo cp /etc/kubernetes/admin.conf .kube/config
  271  ls -l .kube/config
  272  chown student:student .kube/config
  273  sudo chown student:student .kube/config
  274  kubectl get svc
  275  sudo -i
  276  ip a
  277  kubectl get all
  278  sudo poweroff
  279  kubectl get all
  280  ps aux | grepkube-api
  281  ps aux | grep kube-api
  282  sudo -i
  283  ls -l .kube/
  284  sudo ls -l /etc/kubernetes/admin.conf
  285  kubectl config view
  286  helm upgrade --install ingress-nginx ingress-nginx --repo https://kubernetes.github.io/ingress-nginx --namespace ingress-nginx --create-namespace
  287  kubectl get all -n ingress-nginx
  288  kubectl create deploy nginxsvc --image=nginx --port=80
  289  kubectl get svc
  290  kubectl create ingress -h | less
  291  kubectl create ingress nginxsvc --class=nginx --rule=nginxsvc.info/*=nginxsvc:80
  292  kubectlget ingress -o yaml
  293  kubectl get ingress -o yaml
  294  kubectl port-forward -n ingress-nginx svc/ingress-nginx-controller 8080:80
  295  bg
  296  curl nginxsvc.info:8080
  297  ping nginxsvc.info
  298  curl 127.0.0.1:8080
  299  ls
  300  cd kube3weeks/
  301  ls
  302  vim statefulset.yaml
  303  kubectl get pv
  304  ls
  305  git pull
  306  vim nfs-pv.yaml
  307  ip a
  308  cat  nfs-pv.yaml
  309  sudo mkdir /storage
  310  sudo chmod 777 /storage
  311  sudo apt install nfs-utils
  312  sudo apt install nfsserver
  313  sudo apt install nfs-server
  314  sudo vim /etc/exports
  315  sudo systemctl restart nfs-server
  316  showmount -e localhost
  317  vim statefulset.yaml
  318  vim nfs-pv.yaml
  319  vim statefulset.yaml
  320  vim nfs-pv.yaml
  321  kubectl create -f nfs-pv.yaml
  322  kubectl get pv
  323  vim statefulset.yaml
  324  kubectl create -f statefulset.yaml
  325  kubectl get all
  326  vim statefulset.yaml
  327  kubectl get all
  328  kubectl get pv,pvc
  329  kubectl get all
  330  kubectl describe pod web-0
  331  resolvectl nginx.info
  332  resolvectl google.com
  333  resolvectl --help
  334  resolvectl query nginx.info
  335  resolvectl query google.com
  336  kubectl create deploy nginxsander --image=nginx --port=80
  337  kubectl expose deploy nginxsander
  338  kubectl edit svc nginxsander
  339  kubectl create ingress nginxsander --class=nginx --rule=nginx.sander/*=nginxsander:80
  340  kubectl port-forward -n ingress-nginx svc/ingress-nginx-controller 8081:80
  341  bg
  342  curl localhost:8081
  343  curl nginx.sander:8081
  344  curl nginx.sander
  345  sudo vim /etc/hosts
  346  curl nginx.sander
  347  curl nginx.sander:8081
  348  kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
  349  kubectl get pods -n kube-system
  350  kubectl logs -n kube-system metrics-server-678f4bf65b-26rp5
  351  kubectl edit deploy -n kube-system metrics-server
  352  source <(kubectl completion bash)
  353  kubectl get pods -n kube-system
  354  kubectl top pods
  355  kubectl get statefulset
  356  kubectl delete statefulset mysql-1658503906
  357  kubectl delete statefulset web
  358  kubectl get deploy
  359  kubectl delete mydb
  360  kubectl delete deploy mydb
  361  kubectl top pods
  362  kubectl top node
  363  ls
  364  git clone https://github.com/sandervanvugt/ckad
  365  cd ../ckad
  366  cd ckad/
  367  ls
  368  vim hpa.yaml
  369  cd autoscaling/
  370  ls
  371  vim Dockerfile
  372  crictl --help | less
  373  sudo apt install podman
  374  podman build -t php-apache .
  375  podman images
  376  vim hpa.yaml
  377  kubectl apply -f hpa.yaml
  378  vim ../hpa.yaml
  379  kubectl get deploy
  380  kubectl autoscale deploy php-apache --cpu-percent=1 --min=5 --max=10
  381  kubectl get hpa
  382  kubectl get deploy
  383  kubectl get hpa
  384  cd ../..
  385  kubectl api-resources | less
  386  kubectl api-resources | wc
  387  kubectl api-resources | less
  388  kubectl api-versions
  389  vim crd-object.yaml
  390  kubectl create -f crd-object.yaml
  391  kubectl api-version | grep backup
  392  kubectl api-versions | grep backup
  393  kubectl api-resources | grep backup
  394  kubectl api-versions | grep stable
  395  vim crd-backup.yaml
  396  kubectl create -f crd-backup.yaml
  397  kubectl get backups
  398  kubectl get backups -o yaml
  399  ./countdown 13
  400  kubectl create -f https://operatorhub.io/install/jaeger.yaml
  401  kubectl create namespace observability # <1>
  402  kubectl create -f https://github.com/jaegertracing/jaeger-operator/releases/download/v1.36.0/jaeger-operator.yaml -n observability # <2>
  403  kubectl create -f https://github.com/jaegertracing/jaeger-operator/releases/download/v1.36.0/jaeger-operator.yaml -n observability
  404  kubectl get ns
  405  kubectl get all -n observability
  406  cd
  407  echo version1 > index.html
  408  echo version2 >index2.html
  409  echo version1 > index1.html
  410  kubectl create cm index1 --from file=index1.html
  411  kubectl create cm index1 --from-file=index1.html
  412  kubectl get cm index1 -o yaml
  413  kubectl create cm index2 --from-file=index2.html
  414  kubectl create deploy -h | less
  415  kubectl create deploy canary1 --image=nginx --replicas=3 --dry-run=client -o yaml > canary1.yaml
  416  vim canary1.yaml
  417  kubectl run ngintest --image=nginx -- sh
  418  kubectl exec -it ngintest -- sh
  419  kubectl get pods
  420  kubectl run ngintest2 --image=nginx
  421  kubectl exec -it ngintest2 -- sh
  422  kubectl get cm
  423  vim canary1.yaml
  424  kubectl create -f canary1.yaml
  425  kubectl get all --selector type=littlebird
  426  kubectl describe pod canary1-f656b98bf-wgvvj
  427  kubectl delete -f canary1.yaml
  428  vim canary1.yaml
  429  kubectl create -f canary1.yaml
  430  kubectl get all --selector type=littlebird
  431  kubectl exec -it canary1-6c8c555c84-hwbml -- bash
  432  kubectl delete -f canary1.yaml
  433  kubectl edit cm index1
  434  kubectl edit cm index2
  435  kubectl get cm index1 -o yaml
  436  kubectl create -f canary1.yaml
  437  kubectl exec -it canary1-6c8c555c84-tgqpq -- bash
  438  kubectl expose deployment canary1 --type=NodePort --port=80
  439  kubectl get svc
  440  kubectl get svc canary1 -o yaml | less
  441  kubectl edit svc canary1
  442  kubectl get endpoints
  443  curl 10.102.12.135
  444  cp canary1.yaml canary2.yaml
  445  vim canary2.yaml
  446  kubectl get all --selector type=littlebird
  447  kubectl apply -f canary2.yaml
  448  kubectl get all --selector type=littlebird
  449  curl 10.102.12.135
  450  kubectl get all --selector type=littlebird
  451  kubectl scale deploy canary2 --replicas=3
  452  kubectl get all --selector type=littlebird
  453  curl 10.102.12.135
  454  kubectl scale deploy canary1 --replicas=0
  455  kubectl get all --selector type=littlebird
  456  curl 10.102.12.135
  457  history
  458  cd kube3weeks/
  459  ./countdown 12
  460  kubectl port-forward -n ingress-nginx svc/ingress-nginx-controller 8081:80
  461  ss -tunap
  462  ss -tulpn
  463  ss -tulp
  464  ss -tul
  465  ./countdown 4
  466  ip a
  467  lsblk
  468  git clone https://github.com/rook/rook.git
  469  cd rook/deploy/examples/
  470  ls
  471  vim common.yaml
  472  vim operator.yaml
  473  cd ../.././
  474  cd ../kube3weeks/
  475  ls
  476  vim cluster.yaml
  477  ip a
  478  vim cluster.yaml
  479  kubectl create -f crds.yaml
  480  kubectl create -f common.yaml
  481  kubectl create -f operator.yaml
  482  ./countdown 1
  483  kubectl create -f cluster.yaml
  484  vim cluster.yaml
  485  kubectl create -f cluster.yaml
  486  cd ../rook/deploy/examples/
  487  ;s
  488  ls
  489  vim cluster.yaml
  490  cp cluster.yaml ~/kube3weeks/cluster2.yaml
  491  cd ~/kube3weeks
  492  vim cluster.yaml
  493  kubectl create -f cluster.yaml
  494  kubectl -n rook-ceph get pods
  495  kubectl describe pod -n rook-ceph rook-ceph-detect-version-4p2bx
  496  df -h
  497  ssh 192.168.29.143 df -h
  498  ssh 192.168.29.144 df -h
  499  kubectl -n rook-ceph get pods
  500  ls
  501  vim storageclass.yaml
  502  kubectl -n rook-ceph get pods
  503  kubectl create -f storageclass.yaml
  504  kubectl get storageclass
  505  cd ../rook/deploy/examples/
  506  ls
  507  kubectl create -f toolbox.yaml
  508  source <(kubectl completion bash)
  509  kubectl -n rook-ceph exec -it rook-ceph-tools-6db9f859bb-9sfrs -- ceph status
  510  kubectl get pv,pvc
  511  kubectl create -f wordpress.yaml
  512  vim wordpress.yaml
  513  kubectl -n rook-ceph get pods
  514  cd
  515  history