novo-history.txt

    1  ping nu.nl
    2  ip a
    3  git
    4  git clone https://github.com/sandervanvugt/cka
    5  cd cka
    6  ls *sh
    7  vim setup-container-previous-version.sh 
    8  ./setup-container-previous-version.sh 
    9  history
   10  ls *sh
   11  ./setup-kubetools-previousversion.sh 
   12  vim setup-container.sh 
   13  touch /tmp/container.txt
   14  ./setup-kubetools-previousversion.sh 
   15  history
   16  cat /etc/hosts
   17  sudo kubeadm init
   18  which kubeadm 
   19  history
   20  mkdir -p $HOME/.kube
   21  kubectl get all
   22  kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
   23  kubectl get pods -n kube-system
   24  history
   25  kubectl get nodes
   26  kubeadm -h | less
   27  kubeadm token -h | les
   28  kubeadm token -h | less
   29  kubeadm token list -h | less
   30  sudo kubeadm token create --print-join-command
   31  sudo kubeadm token list
   32  history
   33  kubectl -h | less
   34  kubectl completion -h | less
   35  source <(kubectl completion bash)
   36  kubectl create -h | less
   37  kubectl create deploy -h | less
   38  kubectl create deployment novoapp --image=nginx --replicas=3
   39  kubectl get all
   40  kubectl delete pod novoapp-6c544c567c-46wgx 
   41  kubectl get all
   42  history
   43  kubectl get all
   44  kubectl describe pod novoapp-6c544c567c-46wgx 
   45  kubectl run -h | less
   46  kubectl run nginx --image=nginx
   47  kubectl get all
   48  kubectl delete pod nginx 
   49  kubectl create deploy mydb --image=mariadb --replicas=3
   50  kubectl get all
   51  kubectl describe pod mydb-7d6458794-cwx4j 
   52  kubectl get all
   53  kubectl describe pod mydb-7d6458794-cwx4j 
   54  kubectl logs mydb-7d6458794-rrtnf 
   55  kubectl set env -h | less
   56  kubectl set env deploy mydb MARIADB_ROOT_PASSWORD=password
   57  kubectl get ll
   58  kubectl get all
   59  sudo systemctl status containerd
   60  ps aux | grep nginx
   61  sudo journalctl -u containerd
   62  journalctl 
   63  kubectl get pods
   64  kubectl delete pod nginx --force --timeout=0
   65  kubectl get all
   66  kubectl delete pods novoapp-6c544c567c-46wgx --force --timeout=0
   67  kubectl get pods
   68  kubectl get pods -o wide
   69  kubectl create deploy failure --image=nginx --replicas=3
   70  kubectl get all
   71  kubectl get all --show-labels
   72  kubectl get all --selector app=failure
   73  kubectl get all --selector app=failure -o wide
   74  kubectl delete pod failure-7fdf677784-fnd27 
   75  kubectl get all --selector app=failure -o wide
   76  kubectl delete pod failure-7fdf677784-fnd27 --force --timeout=0
   77  kubectl get all --selector app=failure -o wide
   78  sudo ln -s /etc/apparmor.d/runc /etc/apparmor.d/disable/
   79  sudo apparmor_parser -R /etc/apparmor.d/runc
   80  kubectl get all --selector app=failure -o wide
   81  curl 172.16.189.77
   82  kubectl expose deployment failure --port=80
   83  kubectl get all --selector app=failure -o wide
   84  curl 10.107.127.87
   85  kubectl edit svc failure 
   86  kubectl get all --selector app=failure -o wide
   87  kubectl edit svc failure 
   88  kubectl describe svc failure 
   89  kubectl edit svc failure 
   90  kubectl describe svc failure 
   91  vim exo1.txt
   92  history
   93  kubectl create deploy october --image=nginx --replicas=3
   94  kubectl expose deploy october --type=NodePort --port=80
   95  kubectl get all --selector app=october
   96  kubectl describe svc october 
   97  kubectl get pods -n kube-system
   98  kubectl edit svc october 
   99  kubectl get svc
  100  kubectl edit svc october 
  101  kubectl delete svc failure 
  102  history
  103  exit
  104  kubectl run webserver --image=nginx
  105  source <(kubectl completion bash)
  106  kubectl expose pod webserver --port=80
  107  kubectl run testpod --image=busybox -- sleep 3600
  108  kubectl get svc
  109  kubectl exec -it testpod -- wget webserver
  110  kubectl exec -it testpod -- cat /etc/resolv.conf
  111  kubectl get ns
  112  kubectl get pods
  113  kubectl get pods -n kube-system
  114  kubectl get pods -A
  115  kubectl create ns remote
  116  kubectl run interginx --image=nginx
  117  kubectl run remotebox --image=busybox -n remote -- sleep 3600
  118  kubectl expose pod interginx --port=80
  119  kubectl exec -it remotebox -n remote -- cat /etc/resolv.conf
  120  kubectl exec -it remotebox -n remote -- nslookup interginx
  121  kubectl exec -it remotebox -n remote -- nslookup interginx.default.svc.cluster.local
  122  history
  123  echo run busybox in the sleepy namespace, run nginx in the awake namespace and expose it. access the nginx application from busybox by using the dns name
  124  kubectl create ns sleepy
  125  kubectl create ns awake
  126  kubectl run awakeging --image=nginx -n awake
  127  kubectl -n awake expose pod awakeging 
  128  kubectl -n awake expose pod awakeging --port=80
  129  kubectl run -n sleepy busybox -- sleep 3600
  130  kubectl run -n sleepy --image=busybox -- sleep 3600
  131  kubectl get all -n sleepy 
  132  kubectl delete pod sleep -n sleepy
  133  kubectl run sleepy --image=busybox -n sleepy -- sleep 3600
  134  kubectl get all -n sleepy 
  135  kubectl -n sleepy exec -it sleepy -- nslookup awakeging.awake.svc.cluster.local
  136  kubectl -n sleepy exec -it sleepy -- nslookup awakeging.awake
  137  cd cka/
  138  kubectl create ns nwp-namespace
  139  vim nwp-lab9-1.yaml 
  140  kubectl apply -f nwp-lab9-1.yaml 
  141  kubectl expose pod nwp-nginx --port=80
  142  kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx
  143  kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
  144  vim nwp-lab9-2.yaml 
  145  kubectl apply -f nwp-lab9-2.yaml 
  146  kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
  147  kubectl create deploy busybox --image=busybox -- sleep 3600
  148  kubectl exec -it busybox-5b5ddd5fc-nzrz9 -- wget --spider --timeout=1 nwp-nginx
  149  etcdctl
  150  sudo apt install etcd-client
  151  sudo etcdctl --help | less
  152  sudo etcdctl snapshot save -h
  153  sudo 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
  154  sudo 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 /tmp/etcdbackup.db
  155  ls -l /tmp/etcdbackup.db 
  156  etcdctl --write-out=table snapshot status /tmp/etcdbackup.db 
  157  sudo  etcdctl --write-out=table snapshot status /tmp/etcdbackup.db 
  158  history
  159  kubectl get deploy
  160  kubectl delete deploy mydb
  161  cd /etc/kubernetes/manifests/
  162  ls
  163  sudo mv * ..
  164  sudo crictl ps
  165  sudo etcdctl snapshot restore /tmp/etcdbackup.db --data-dir /var/lib/etcd-backup
  166  sudo ls -l /var/lib/etcd-backup
  167  sudo vim /etc/kubernetes/etcd.yaml 
  168  sudo mv ../*.yaml .
  169  sudo crictl ps
  170  kubectl get deploy -A
  171  sudo mv ..
  172  sudo mv * ..
  173  sudo mv /var/lib/etcd /var/lib/etcd-old
  174  sudo mv /var/lib/etcd-backup /var/lib/etcd
  175  sudo vim /etc/kubernetes/etcd.yaml 
  176  sudo mv ../*.yaml .
  177  sudo crictl ps
  178  kubectl get deploy -A
  179  cd
  180  cd cka
  181  ls
  182  ls p*
  183  vim pv.yaml 
  184  kubectl explain persistenvolume.spec | less
  185  kubectl explain persistentvolume.spec | less
  186  kubectl apply -f pv.yaml 
  187  vim pvc.yaml 
  188  kubectl apply -f pvc.yaml 
  189  kubectl get pvc,pv
  190  vim pv-pod.yaml 
  191  kubectl apply -f pv-pod.yaml 
  192  kubectl exec -it pv-pod -- touch /usr/share/nginx/html/helloDK
  193  kubectl get pods
  194  source <(kubectl completion bash)
  195  kubectl describe pv pv-volume 
  196  kubectl get pods -o wide | grep pv
  197  exit
  198  source <(kubectl completion bash)
  199  cd cka/
  200  vim nwpolicy-complete-example.yaml 
  201  kubectl apply -f nwpolicy-complete-example.yaml 
  202  vim nwpolicy-complete-example.yaml 
  203  kubectl expose pod nginx --port=80
  204  kubectl exec -it busybox -- wget --spider --timeout=1 nginx
  205  kubectl get networkpolicy -o yaml
  206  kubectl get pods --show-labels
  207  kubectl label pod access=true
  208  kubectl label pod busybox access=true
  209  kubectl exec -it busybox -- wget --spider --timeout=1 nginx
  210  history
  211  vim nwpexample.yaml
  212  kubectl create ns nondefault
  213  vim nwpexample.yaml
  214  kubectl apply -f nwpexample.yaml 
  215  kubectl describe ns nondefault 
  216  kubectl get networkpolicy -n nondefault
  217  kubectl get networkpolicy
  218  kubectl run nginx1 --image=nginx -n nondefault 
  219  kubectl run nginx2 --image=nginx
  220  kubectl label pod nginx2 role=web
  221  kubectl lable pod nginx1 -n nondefault role=web
  222  kubectl label pod nginx1 -n nondefault role=web
  223  kubectl expose pod nginx1 -n nondefault --port=80
  224  kubectl expose pod nginx2 --port=80
  225  kubectl get pods
  226  history
  227  kubectl exec -it busybox -- wget --spider --timeout=1 nginx1.nondefault.svc.cluster.local
  228  kubectl exec -it busybox -- wget --spider --timeout=1 nginx2.default.svc.cluster.local
  229  vim nwpexample.yaml 
  230  kubectl get ns --show-labels
  231  vim nwpexample.yaml 
  232  history
  233  kubectl exec -it busybox -- wget --spider --timeout=1 nginx1.nondefault.svc.cluster.local
  234  kubectl apply -f nwpexample.yaml 
  235  kubectl exec -it busybox -- wget --spider --timeout=1 nginx1.nondefault.svc.cluster.local
  236  kubectl exec -it busybox -- wget --spider --timeout=1 nginx2.default.svc.cluster.local
  237  vim nwpexample.yaml 
  238  kubectl get pods busybox --show-labels
  239  kubectl apply -f nwpexample.yaml 
  240  kubectl exec -it busybox -- wget --spider --timeout=1 nginx1.nondefault.svc.cluster.local
  241  kubectl apply -f nwpexample.yaml 
  242  kubectl get ns
  243  kubectl get pods remote
  244  kubectl get pods -n remote
  245  kubectl apply -f nwpexample.yaml 
  246  vim nwpexample.yaml 
  247  #kubectl label pod -n remote role=frontend
  248  kubectl exec -n remote -it  remotebox wget --spider --timeout=1 nginx1.nondefault.svc.cluster.local
  249  kubectl exec -n remote -it  remotebox -- wget --spider --timeout=1 nginx1.nondefault.svc.cluster.local
  250  kubectl get networkpolicy -n nondefault
  251  kubectl label pod -n remote role=frontend
  252  kubectl label pod remotepod -n remote role=frontend
  253  kubectl label pod remotebox -n remote role=frontend
  254  kubectl exec -n remote -it  remotebox -- wget --spider --timeout=1 nginx1.nondefault.svc.cluster.local
  255  vim networkpolicy-example.yaml 
  256  vim nwp-lab9-2.yaml 
  257  kubectl get netpol
  258  kubectl delete netpol deny-from-other-namespaces 
  259  kubectl describe netpol access-nginx
  260  kubectl get pods
  261  kubectl get ns
  262  kubectl get pods remote
  263  kubectl get pods -n remote
  264  kubectl -n remote exec -it remotebox -- wget --spider --timeout=1 nginx.default.svc.cluster.local
  265  history | grep app
  266  kubectl get all
  267  kubectl kubectl delete all all
  268  kubectl delete all all
  269  kubectl delete all --all
  270  kubectl api-resources | less
  271  kubectl api-resources | grep -i networkp
  272  kubectl explain networkpolicies.spec | less
  273  kubectl explain networkpolicies.spec.ingress | less
  274  kubectl explain networkpolicies.crd.projectcalico.org.spec.ingress | less
  275  kubectl completion -h | less
  276  kubectl get ds -A
  277  vim initex.yaml
  278  grep init *
  279  vim init-container.yaml 
  280  kubectl apply -f init-container.yaml 
  281  kubectl get pods
  282  kubectl get pods -n kube-system 
  283  kubectl -n kube-system get pods calico-node-5xcrf -o yaml | less
  284  vim init-container.yaml 
  285  kubectl delete -f init-container.yaml 
  286  kubectl get pods
  287  kubectl apply -f init-container.yaml 
  288  kubectl get pods
  289  kubectl get pods -w
  290  kubectl run examplepod --image=busybox --dry-run=client -o yaml -- sleep 10
  291  kubectl run examplepod --image=busybox --dry-run=client -o yaml -- sleep 10 > sleep10.yaml
  292  vim sleep10.yaml 
  293  kubectl apply -f sleep10.yaml 
  294  kubectl get pods
  295  kubectl get pods -o wide
  296  kubectl run examplepod --image=busybox --dry-run=client -o yaml -- sh -c "sleep 10 > /tmp/sleep" 
  297  kubectl create deploy daemon --image=nginx --dry-run=client -o yaml > daemon.yaml
  298  vim daemon.yaml 
  299  kubectl apply -f daemon.yaml 
  300  vim daemon.yaml 
  301  kubectl apply -f daemon.yaml 
  302  kubectl get daemonset
  303  kubectl get pods -o wide
  304  kubectl edit node control
  305  kubectl get ds -A
  306  kubectl -n kube-system get ds calico-node -o yaml | less
  307  kubectl run busybox date
  308  kubectl run testbox --image=busybox date
  309  kubectl run testbox --image=busybox -- date
  310  kubectl run testbox2 --image=busybox -- date
  311  kubectl run testbox3 --image=busybox
  312  kubectl get pods
  313  vim selector-pod.yaml 
  314  kubectl apply -f selector-pod.yaml 
  315  kubectl get pods
  316  kubectl describe pod nginx
  317  kubectl label node worker2 disktype=ssd
  318  kubectl get pods
  319  kubectl get pods -o wide
  320  kubectl edit node worker1
  321  kubectl describe node worker1
  322  kubectl taint node worker1 storage=ssd:NoSchedule
  323  kubectl describe node worker1
  324  kubectl describe node worker1 | less /taint
  325  kubectl describe node worker1 | less 
  326  kubectl create deploy tolerateornot --image=nginx --replicas=6
  327  kubectl get pods -o wide
  328  vim taint-toleration.yaml 
  329  kubectl apply -f taint-toleration.yaml 
  330  kubectl get pods
  331  kubectl get pods -o wide
  332  kubectl apply -f taint-toleration.yaml 
  333  vim taint-toleration.yaml 
  334  vim taint-toleration2.yaml 
  335  kubectl apply -f taint-toleration2.yaml 
  336  kubectl get pods -o wide
  337  kubectl set -h
  338  kubectl set resources -h
  339  kubectl set resources -h | less
  340  kubectl get deploy
  341  kubectl taint node worker1 storage=ssd:NoSchedule-
  342  kubectl delete deploy tolerateornot 
  343  kubectl create deploy whatever --image=nginx --replicas=3
  344  kubectl set resources deployment whatever --limits=cpu=200m,memory=512Mi --requests=cpu=100m,memory=256Mi
  345  kubectl get deploy whatever -o yaml | less
  346  kubectl get pods -o wide
  347  kubectl set resources deployment whatever --limits=cpu=200m,memory=512Gi --requests=cpu=100m,memory=256Gi
  348  kubectl get pods -o wide
  349  kubectl describe pod whatever-694fbf4f4b-hsrfh 
  350  kubectl set resources deployment whatever --limits=cpu=200m,memory=4Mi --requests=cpu=100m,memory=2Mi
  351  kubectl get pods
  352  kubectl describe pod whatever-684c54dfc-wjjg8 
  353  kubectl get pods
  354  kubectl describe pod whatever-684c54dfc-wqmsw 
  355  kubectl delete deployments.apps whatever 
  356  kubectl create ns notmuch
  357  kubectl create quota -h | less
  358  kubectl create quota notmany --hard=cpu=1,memory=1G,pods=2,services=3,resourcequotas=1,secrets=5,persistentvolumeclaims=10 -n notmuch
  359  kubectl create deploy alot --image=nginx --replicas=3 -n notmuch 
  360  kubectl get all -n notmuch
  361  kubectl -n notmuch describe replicaset alot-8465f68dc6 
  362  kubectl set resources deployment alot --limits=cpu=200m,memory=128Mi --requests=cpu=100m,memory=2Mi -n notmuch 
  363  kubectl get all -n notmuch
  364  kubectl describe -n notmuch pod alot-7cd6cbc85-zzm9t 
  365  kubectl -n notmuch delete quota notmany 
  366  kubectl get all -n notmuch
  367  kubectl create deploy mydb --image=mariadb --replicas=3
  368  kubectl get all --selector app=mydb
  369  kubectl create cm  -h | less
  370  kubectl create cm mydbvars --from-literal=MARIADB_ROOT_PASSWORD=password
  371  kubectl get cm mydbvars -o yaml
  372  kubectl set env -h | less
  373  #kubectl set env --from=configmap/myconfigmap --prefix=MYSQL_ deployment/myapp
  374  kubectl set env --from=configmap/mydbvars deployment/mydb
  375  kubec
  376  kubectl get all --selector app=mydb
  377  kubectl get deploy mydb -o yaml | less
  378  kubectl create secret mydbsecretpw --from-literal=ROOT_PASSWORD=password
  379  kubectl create secret -h | less
  380  kubectl create secret generic -h | less
  381  kubectl create secret generic mydbsecretpw --from-literal=ROOT_PASSWORD=password
  382  kubectl describe secrets mydbsecretpw 
  383  kubectl get secrets mydbsecretpw -o yaml
  384  echo cGFzc3dvcmQ= | base64 -d
  385  vim exo2.txt
  386  #kubectl create secret generic mynewdbvars --from-literal=whatever=password 
  387  kubectl create secret generic mynewdbvars --from-literal=whatever=password 
  388  kubectl get secrets mynewdbvars -o yaml
  389  kubectl create deploy whateverdb --image=mariadb
  390  kubectl set env --from secret/mynewdbvars deploy/whateverdb
  391  kubectl edit deploy whateverdb 
  392  kubectl get all --selector app=whateverdb
  393  kubectl explain deploy.spec | less
  394  kubectl get nodes
  395  kubectl drain node worker2
  396  kubectl drain worker2
  397  kubectl drain worker2 --force
  398  kubectl drain worker2 --force --ignore-daemonsets
  399  kubectl get nodes
  400  kubectl get pods -o wide
  401  kubectl edit node worker2
  402  kubectl uncordon worker2
  403  kubectl get nodes
  404  kubectl get pods -o wide
  405  vim morevolumes.yaml 
  406  kubectl apply -f morevolumes.yaml 
  407  kubectl get pods
  408  kubectl delete pods morevol 
  409  kubectl get pods
  410  kubectl apply -f morevolumes.yaml 
  411  kubectl get pods
  412  kubectl exec -it morevol -c centos1 touch /centos1/centfile
  413  kubectl exec -it morevol -c centos2 ls -l /centos2/
  414  kubectl exec -it morevol -c centos2 -- ls -l /centos2/
  415  kubectl top pods
  416  kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components
  417  kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
  418  kubectl get pods -n kube-system
  419  kubectl edit deploy -n kube-system metrics-server 
  420  kubectl get pods -n kube-system
  421  kubectl top pods
  422  kubectl get pods -n kube-system -o wide
  423  sudo -i
  424  cd /etc/kubernetes/manifests/
  425  ls
  426  vim etcd.yaml
  427  sudo vim etcd.yaml
  428  sudo ls -l /var/lib/etcd/
  429  sudo ls -l /var/lib/etcd/member
  430  ls -l /etc/pki
  431  ls -l /etc/ssl
  432  ls -l /etc/ssl/certs
  433  sudo ps aux | grep kube-api
  434  cd /cka
  435  cd /
  436  cd home/student/
  437  ls
  438  cd cka
  439  ls
  440  vim security-context.yaml 
  441  kubectl apply -f security-context.yaml 
  442  kubectl exec -it security-context-demo -- sh
  443  kubectl create role -h
  444  kubectl create role -h | less
  445  kubectl get roles
  446  kubectl create role pod-reader --verb=get --verb=list --verb=watch --resource=pods
  447  kubectl get roles
  448  kubectl describe role pod-reader 
  449  kubectl get roles -n awake
  450  kubectl get pods -o yaml pv-pod | less
  451  kubectl get sa -A
  452  kubectl create sa myown
  453  kubectl get roles
  454  kubectl create rolebinding -h | less
  455  #kubectl create rolebinding admin-binding --role=admin --serviceaccount=monitoring:sa-dev
  456  kubectl create rolebinding pod-reader-binding --role=pod-reader --serviceaccount=default:myown
  457  kubectl get deploy
  458  kubectl set serviceaccount -h | less
  459  kubectl set serviceaccount deploy mydb myown
  460  exit
  461  history
  462  history > /tmp/novo-history.txt