k8s-cmd-jp

    1  cd ~
    2  clear
    3  sudo hostnamectl set-hostname k8s-master
    4  hostname
    5  sudo reboot
    6  cd ~
    7  curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
    8  ls
    9  sudo add-apt-repository    "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   10     $(lsb_release -cs) \
   11     stable"
   12  sudo apt-get update
   13  sudo apt-get install -y docker-ce=18.06.1~ce~3-0~ubuntu
   14  sudo apt-mark hold docker-ce
   15  sudo usermod -aG docker ubuntu
   16  exit
   17  docker info
   18  cd ~
   19  clear
   20  curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
   21  cat << EOF | sudo tee /etc/apt/sources.list.d/kubernetes.list
   22  deb https://apt.kubernetes.io/ kubernetes-xenial main
   23  EOF
   24  sudo apt-get update
   25  sudo apt-get install -y kubelet=1.15.7-00 kubeadm=1.15.7-00 kubectl=1.15.7-00
   26  sudo apt-mark hold kubelet kubeadm kubectl
   27  kubeadm version
   28  sudo kubeadm init --pod-network-cidr=10.244.0.0/16
   29  mkdir -p $HOME/.kube
   30  cd ~
   31  kubectl version
   32  clear
   33  kubectl get nodes
   34  echo "net.bridge.bridge-nf-call-iptables=1" | sudo tee -a /etc/sysctl.conf
   35  sudo sysctl -p
   36  kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/bc79dd1505b0c8681ece4de4c0d86c5cd2643275/Documentation/kube-flannel.yml
   37  kubectl get nodes
   38  clear
   39  kubectl get nodes
   40  kubectl get pods -n kube-system
   41  cd ~
   42  cat << EOF | kubectl create -f -
   43  apiVersion: v1
   44  kind: Pod
   45  metadata:
   46    name: nginx
   47  spec:
   48    containers:
   49    - name: nginx
   50      image: nginx
   51  EOF
   52  ls
   53  kubectl get pods
   54  kubectl describe pod nginx
   55  kubectl get pods -n kube-system
   56  kubectl describe pod nginx
   57  kubectl delete pod nginx
   58  kubectl get pods
   59  kubectl get nodes
   60  kubectl describe node k8s-master
   61  cat << EOF | kubectl create -f -
   62  apiVersion: apps/v1
   63  kind: Deployment
   64  metadata:
   65    name: nginx
   66    labels:
   67      app: nginx
   68  spec:
   69    replicas: 2
   70    selector:
   71      matchLabels:
   72        app: nginx
   73    template:
   74      metadata:
   75        labels:
   76          app: nginx
   77      spec:
   78        containers:
   79        - name: nginx
   80          image: nginx:1.15.4
   81          ports:
   82          - containerPort: 80
   83  EOF
   84  kubectl get pods
   85  cat << EOF | kubectl create -f -
   86  apiVersion: v1
   87  kind: Pod
   88  metadata:
   89    name: busybox
   90  spec:
   91    containers:
   92    - name: busybox
   93      image: radial/busyboxplus:curl
   94      args:
   95      - sleep
   96      - "1000"
   97  EOF
   98  kubectl get pods
   99  kubectl get pods -o wide
  100  kubectl exec busybox -- curl 10.244.1.4
  101  kubectl exec busybox -- curl 10.244.2.3
  102  kubectl get pods -n kube-system
  103  sudo systemctl status kubelet
  104  cat <<EOF | kubectl create -f -
  105  apiVersion: apps/v1
  106  kind: Deployment
  107  metadata:
  108    name: nginx-deployment
  109    labels:
  110      app: nginx
  111  spec:
  112    replicas: 2
  113    selector:
  114      matchLabels:
  115        app: nginx
  116    template:
  117      metadata:
  118        labels:
  119          app: nginx
  120      spec:
  121        containers:
  122        - name: nginx
  123          image: nginx:1.15.4
  124          ports:
  125          - containerPort: 80
  126  EOF
  127  kubectl get deployments
  128  kubectl describe deployment nginx-deployment
  129  kubectl get pods
  130  cat << EOF | kubectl create -f -
  131  kind: Service
  132  apiVersion: v1
  133  metadata:
  134    name: nginx-service
  135  spec:
  136    selector:
  137      app: nginx
  138    ports:
  139    - protocol: TCP
  140      port: 80
  141      targetPort: 80
  142      nodePort: 30080
  143    type: NodePort
  144  EOF
  145  kubectl get svc
  146  curl localhost:30080
  147  kubectl get services
  148  kubectl get service
  149  kubectl get node
  150  kubectl get nodes
  151  kubectl get pod
  152  kubectl get pods
  153  pwd
  154  git clone https://github.com/linuxacademy/robot-shop.git
  155  ls
  156  cd robot-shop/K8s/descriptors/
  157  ls
  158  cat cart-deployment.yaml
  159  cd ~
  160  kubectl create namespace robot-shop
  161  kubectl get namespaces
  162  kubectl -n robot-shop create -f ~/robot-shop/K8s/descriptors/
  163  kubectl get services
  164  kubectl delete svc nginx-service
  165  kubectl get services
  166  kubectl get namespaces
  167  kubectl get pod
  168  kubectl delete pods busybox nginx-9b644dcd5-s5drv
  169  kubectl get pod
  170  kubectl delete pods busybox nginx-9b644dcd5-xzl22 nginx-9b644dcd5-zrdcv nginx-deployment-9b644dcd5-ft7w8 nginx-deployment-9b644dcd5-kcc2t
  171  kubectl get pod
  172  kubectl get deployment
  173  kubectl delete deployment nginx nginx-deployment
  174  kubectl get deployment
  175  kubectl get pod
  176  kubectl -n robot-shop create -f ~/robot-shop/K8s/descriptors/
  177  kubectl get deployments
  178  kubectl get pods -n robot-shop -w
  179  kubectl get pods
  180  kubectl get pods -n robot-shop
  181  kubectl inspect pod web-75954897c-zbzvd
  182  kubectl describe pod web-75954897c-zbzvd
  183  kubectl describe namespace robot-shop
  184  kubectl inspect namespace robot-shop
  185  kubectl describe pod web-75954897c-zbzvd -n robot-shop
  186  kubectl get deployments
  187  kubectl get svc
  188  kubectl get deployments
  189  kubectl get pods -n robo-shop
  190  cd ~
  191  ls
  192  kubectl create namespace robot-shop
  193  kubectl get namespace
  194  kubectl delete namespace robot-shop
  195  kubectl get namespace
  196  kubectl get pods -n robot-shop
  197  kubectl get pods
  198  kubectl version
  199  kubectl get nodes
  200  kubectl get pods --all-namespaces
  201  kubectl get pods --all-namespaces -o wide
  202  kubectl get namespaces
  203  cat << EOF | kubectl create -f -
  204  apiVersion: v1
  205  kind: Pod
  206  metadata:
  207    name: nginx
  208  spec:
  209    containers:
  210    - name: nginx
  211      image: nginx
  212  EOF
  213  kubectl get pod
  214  kubect describe pod nginx
  215  kubectl describe pod nginx
  216  kubectl delete pod nginx
  217  kubectl get pods
  218  cd ~
  219  clear
  220  kubectl get componentstatus
  221  vim nginx.yml
  222  cat nginx.yml
  223  kubectl create -f nginx.yml
  224  kubectl get pod
  225  kubectl get deployment nginx-deployment -o yaml
  226  kubectl get deployment
  227  kubectl get namespace
  228  kubectl get pods --show-labels
  229  kubectl label pods nginx-deployment-5754944d6c-6vqqb env=prod
  230  kubect get pod --show-labels
  231  kubect get pods --show-labels
  232  kubectl get pod --show-labels
  233  kubeclt get pode -L
  234  kubeclt get pode -L env
  235  kubeclt get pod -L env
  236  kubeclt get pods -L env
  237  kubectl get pod -L env
  238  kubectl get pod -L
  239  kubectl get pod -L prod
  240  kubectl get pod -L env
  241  kubectl label pod nginx-deployment-5754944d6c-8ncpd env=dev
  242  kubectl get pod -L env
  243  cd ~
  244  kubectl annotate deployment nginx-deployment ninja="JP"
  245  kubectl get deployment
  246  kubectl get deployment nginx-deployment -o yaml
  247  kubectl get pods --field-selector status.phase=Running
  248  kubectl get pods
  249  kubectl get pods -o wide
  250  kubectl delete pod nginx-deployment-5754944d6c-6vqqb
  251  kubectl get pods -o wide
  252  kubectl get svc
  253  vim nginx-nodeport.yml
  254  kubectl create -f nginx-nodeport.yml
  255  kubectl get svc
  256  cd ~
  257  kubectl get pods -o wide
  258  kubectl get service
  259  kubectl describe pod nginx-deployment-5754944d6c-8ncpd
  260  curl localhost:30080
  261  kubectl get pod
  262  cat << EOF | kubectl create -f -
  263  apiVersion: v1
  264  kind: Pod
  265  metadata:
  266    name: busybox
  267  spec:
  268    containers:
  269    - name: busybox
  270      image: radial/busyboxplus:curl
  271      args:
  272      - sleep
  273      - "1000"
  274  EOF
  275  kubectl get pod
  276  kubectl get pods -o wide
  277  kubectl get services
  278  kubectl exec busybox -- curl 10.97.122.237:80
  279  kubectl exec busybox -- curl 10.244.2.15:30080
  280  kubectl exec busybox -- curl 10.244.2.15:80
  281  clear
  282  kubectl get nodes
  283  kubectl get namespaces
  284  kubectl get nodes -o wide
  285  kubectl describe node k8s-master
  286  kubectl get pods --all-namespaces
  287  kubectl get namespaces
  288  kubectl get pods
  289  kubectl get services -o wide
  290  kubectl get pods --all-namespaces -o wide
  291  kubectl get nodes -o wide
  292  kubectl get deployments
  293  kubectl describe pods etcd-k8s-master
  294  kubectl get pods --all-namespaces --show-labels -o wide
  295  kubectl get nodes
  296  clear
  297  kubectl get pods --all-namespaces
  298  kubectl get namespaces
  299  kubectl get pods
  300  kubectl get pods --all-namespaces -o wide
  301  kubectl get deployments
  302  kubectl get pods -all-namespaces --show-labels -o wide
  303  kubectl get pods --all-namespaces --show-labels -o wide
  304  cd ~
  305  clear
  306  kubectl cluster-info
  307  kubectl config view
  308  kubectl describe pods
  309  kubectl describe pod
  310  kubectl describe nodes
  311  kubectl describe pods
  312  kubectl get services
  313  kubectl get services --all-namespaces
  314  kubectl api-resources -o wide
  315  kubectl api-resources
  316  kubectl cluster info
  317  kubectl cluster-info
  318  kubectl version
  319  kubectl get secrets
  320  cat .kube/config | more
  321  exit
  322  cd ~
  323  hostname
  324  clear
  325  kubectl create ns my-ns
  326  kubectl get ns
  327  kubectl run test --image=chadmcrowell/kubectl-proxy -n my-ns
  328  kubectl get pods --namespaces=ns
  329  kubectl get pods --namespaces my-ns
  330  kubectl get pods -namespaces my-ns
  331  kubectl get pods -n my-ns
  332  kubectl exec -it test-54776597d6-lltmf -n my-ns sh
  333  kubectl get serviceaccounts
  334  kubectl create nginx --image=nginx
  335  kubectl run nginx --image=nginx
  336  kubectl get pods
  337  kubectl get deployments
  338  kubect port-forward nginx-7bb7cd8db5-tj8ld 8081:80
  339  kubectl port-forward nginx-7bb7cd8db5-tj8ld 8081:80
  340  clear
  341  kubectl get pods
  342  kubectl logs nginx-7bb7cd8db5-tj8ld
  343  kubectl exec -it nginx-7bb7cd8db5-tj8ld -- nginx -v
  344  clear
  345  kubectl expose deployment nginx --port 80 --type NodePort
  346  kubectl get services
  347  kubectl get services -o wide
  348  kubectl get nodes
  349  kubectl get pods
  350  kubectl describe nodes
  351  cd ~
  352  clear
  353  kubectl version --short
  354  kubectl describe nodes
  355  kubectl get nodes
  356  kubectl version short
  357  kubectl version --short
  358  kubectl get pods -n kube-system
  359  kubectl get pods kube-controller-manager-k8s-master -o yaml -n kube-system
  360  clear
  361  sudo apt-mark unhold kubeadm kubelet
  362  sudo apt install -y kubeadm=1.16.6-00
  363  sudo apt-mark hold kubeadm
  364  kubeadm version
  365  sudo kubeadk upgrade plan
  366  sudo kubeadm upgrade plan
  367  sudo kubeadm upgrade apply v1.16.6
  368  kubectl get nodes
  369  sudo apt install -y kubelet=1.16.6-00
  370  kubectl get nodes
  371  kubectl version --short
  372  sudo apt-mark unhold kubectl
  373  sudo apt install -y kubectl=1.16.6-00
  374  kubectl version --short
  375  kubectl get nodes
  376  sudo apt-mark hold kubectl kubelet
  377  kubectl get nodes
  378  kubectl get pods -o wide
  379  kubectl drain nginx-deployment-5754944d6c-qbsq7 --ignore-daemonsets
  380  kubectl drain k8s-node1 --ignore-daemonsets
  381  kubectl get pods -o wide
  382  kubectl get pods watch
  383  kubectl get pods --watch
  384  kubectl get pods -o wide
  385  kubectl get pods -o wide --watch
  386  kubectl get pods -o wide
  387  kubectl get nodes
  388  kubectl uncordon k8s-node1
  389  kubectl get nodes
  390  sudo systemctl status kubelet
  391  sudo systemctl restart kubelet
  392  kubectl get nodes
  393  echo "net.bridge.bridge-nf-call-iptables=1" | sudo tee -a /etc/sysctl.conf
  394  sudo sysctl -p
  395  kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/bc79dd1505b0c8681ece4de4c0d86c5cd2643275/Documentation/kube-flannel.yml
  396  kubectl get nodes
  397  sudo systemctl restart flannel
  398  etcdctl get /coreos.com/network/config
  399  kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"
  400  kubectl get nodes
  401  journalctl -u kubelet
  402  kubeadm init
  403  sudo kubeadm init
  404  kubectl get nodes
  405  kubectl get pods -o wide
  406  kubectl get nodes
  407  kubectl get no
  408  kubectl get n
  409  kubectl get nod
  410  kubectl get no
  411  sudo kubeadm token generate
  412  sudo kubeadm token create atuzc4.tu1ae5iiyk5zglqa --ttl 1h --print-join-command
  413  kubeadm --print-join-command
  414  kubeadm token --print-join-command
  415  kubeadm list --print-join-command
  416  kubeadm list
  417  sudo kubeadm list
  418  kubectl get node
  419  wget https://github.com/etcd-io/etcd/releases/download/v3.3.12/etcd-v3.3.12-linux-amd64.tar.gz
  420  tar xvf etcd-v3.3.12-linux-amd64.tar.gz
  421  sudo mv etcd-v3.3.12-linux-amd64/etcd* /usr/local/bin
  422  sudo ETCDCTL_API=3 etcdctl snapshot save snapshot.db --cacert /etc/kubernetes/pki/etcd/ca.crt --cert /etc/kubernetes/pki/etcd/server.crt --key /etc/kubernetes/pki/etcd/server.key
  423  ETCDCTL_API=3 etcdctl --help
  424  cd /etc/kubernetes/pki/etcd/
  425  ls
  426  ETCDCTL_API=3 etcdctl --write-out=table snapshot status snapshot.db
  427  cd ~
  428  ETCDCTL_API=3 etcdctl --write-out=table snapshot status snapshot.db
  429  sudo tar -zcvf etcd.tar.gz /etc/kubernetes/pki/etcd
  430  cd ~
  431  clear
  432  kubectl get nodes
  433  kubect get pods -o wide
  434  kubectl get pods -o wide
  435  cd ~
  436  kubectl get services -o yaml
  437  kubectl get services -o wide
  438  kubectl get services -o yaml > services.txt
  439  cat services.txt
  440  rm -rf services.txt
  441  ls
  442  clear
  443  kubectl get services -o wide
  444  ping 10.96.0.1
  445  ping 10.96.141.71
  446  ping 10.97.122.237
  447  curl http://10.97.122.237
  448  kubectl get endpoints
  449  kubectl get pods
  450  kubectl get pods -o wide
  451  sudo iptables-save | grep KUBE
  452  sudo iptables-save | grep KUBE | grep nginx
  453  sudo iptables-save | grep KUBE  nginx
  454  sudo iptables-save | grep KUBE nginx
  455  cd ~
  456  clear
  457  vim nginx-loadbalancer.yml
  458  kubectl run kubeserve2 --image=chadmcrowell/kubeserve2
  459  kubectl get deployments
  460  kubectl scale deployment/kubeserve2 --replicas=2
  461  kubectl get pods -o wide
  462  kubectl get pods -o wide watch
  463  kubectl get pods -o wide --watch
  464  kubectl expose deployment kubeserve2 --port 80 --target-port 8080 --type LoadBalancer
  465  kubectl get services
  466  kubectl get services -w
  467  kubectl get services kubeserve2 -o yaml
  468  curl http://10.111.27.59
  469  kubectl describe services kubeserve
  470  kubectl annotate service kubeserve2 externalTrafficPolicy=Local
  471  kubectl edit ingress
  472  kubectl describe ingress
  473  curl http://kubeserve2.example.com
  474  kubectl get pods -o wide
  475  kubect get services -o wide
  476  kubect get services
  477  kubectl get services -o wide
  478  kubectl remove service nginx
  479  kubectl delete service nginx
  480  kubectl get services -o wide
  481  vim ingress.yaml
  482  kubectl edit ingress
  483  kubectl create -f ingress.yaml
  484  kubectl get service
  485  kubectl get services
  486  kubectl edit ingress
  487  kubectl describe ingress
  488  kubectl get pods -n kube-system
  489  kubectl get deployments -n kube-system
  490  kubectl get services -n kube-system
  491  vim busybox.yaml
  492  kubectl create -f busybox.yaml
  493  kubectl get pods
  494  kubectl delete pod busybox
  495  kubectl get pods
  496  kubectl create -f busybox.yaml
  497  kubectl get pods
  498  kubectl exec -it busybox -- cat /etc/resolv.conf
  499  kubectl exec -it busybox -- nslookup kubernetes
  500  kubectl get pods -o wide
  501  kubectl exec -ti busybox -- nslookup 10.244.2.15.default.pod.cluster.local
  502  kubectl exec -ti busybox -- nslookup 10-32-0-5.default.pod.cluster.local
  503  kubectl exec -it busybox -- nslookup kube-dns.kube-system.svc.cluster.local
  504  kubectl get service
  505  kubectl get pods -n kube-system
  506  kubectl logs coredns-5644d7b6d9-dzjw9
  507  kubectl logs coredns-5644d7b6d9-zc7c7
  508  kubectl logs coredns-5644d7b6d9-zc7c7 -n kube-system
  509  vim headless.yaml
  510  kubectl create -f headless.yaml
  511  kubectl get services
  512  vim custom-dns.yaml
  513  kubectl create -f custom-dns.yaml
  514  kubectl get pods
  515  kubectl get pods -o wide
  516  kubectl exec -ti busybox -- nslookup 10-32-0-6.default.pod.cluster.local
  517  kubectl exec -it dns-example -- cat /etc/resolv.conf
  518  kubectl get namespaces
  519  kubectl get pod -n kube-system
  520  kubectl get all -all-namespaces -o wide
  521  kubectl get all --all-namespaces -o wide
  522  kubectl run pod --image=nginx jp_nginx --dryrun=client -o yaml > jp_nginx.yml
  523  kubectl run pod --image=nginx jp_nginx --dry-run=client -o yaml > jp_nginx.yml
  524  kubectl run --image=nginx jp_nginx --dry-run=client -o yaml > jp_nginx.yml
  525  kubectl run --image=nginx jp_nginx --dry-run=client -o yaml > jp_nginx.yaml
  526  kubectl run --image=nginx jp-ninx --dry-run=client -o yaml > jp-nginx.yml
  527  kubectl run --image=nginx jp-ninx --dry-run -o yaml > jp-nginx.yml
  528  cat jp_nginx.y
  529  cat jp_nginx.yml
  530  cat jp-nginx.yml
  531  rm -rf jp_nginx.yml
  532  ls
  533  rm -rf jp_nginx.yaml
  534  cat jp-nginx.yml
  535  kubectl create -f jp-nginx.yml
  536  kubectl get pod
  537  kubectl create deployment jp-deployment --image=nginx --dry-run -o yaml > jp-deployment.yml
  538  cat jp-deployment.yml
  539  vim jp-deployment.yml
  540  kubectl create -f jp-deployment.yml
  541  kubectl get deployments.apps
  542  kubectl get pod
  543  kubectl delete -f jp-deployment.yml
  544  kubectl get pod
  545  kubectl get deployments.apps
  546  kubectl delete -f jp-nginx.yml
  547  kubectl get deployments.apps
  548  kubectl get pod
  549  kubectl delete pod --all
  550  kubectl get pod
  551  kubectl get deployments.apps
  552  kubectl delete deployments.apps nginx
  553  kubectl delete deployments.apps nginx-deployment
  554  kubectl delete deployments.apps pref
  555  kubectl get deployments.apps
  556  kubectl delete deployments.apps kubeserve2
  557  kubectl get deployments.apps
  558  kubectl get pod
  559  kubectl get pod --watch
  560  kubectl get pod
  561  kubectl get pod -n kube-system
  562  kubectl create -f jp-deployment.yml -n jp-namespace
  563  kubectl create -f jp-deployment.yml -n opa
  564  kubectl create namespace
  565  kubectl get namespaces
  566  kubectl delete namespaces my-ns
  567  kubectl get namespaces
  568  kubectl create -f jp-deployment.yml -n jp
  569  kubectl create namespace jp-namespace
  570  kubectl get namespaces
  571  kubectl create -f jp-deployment.yml -n jp-namespace
  572  kubectl get deployments.apps
  573  kubectl get deployments.apps -n jp-namespace
  574  kubectl get pod
  575  kubectl get pod -n jp-namespace
  576  kubectl explain ReplicSet
  577  kubectl get deployments.apps
  578  kubectl get deployments.apps -n jp-namespace
  579  kubectl delete deployments.apps -f jp-deployment.yml
  580  kubectl delete -f jp-deployment.yml
  581  kubectl delete deployments.apps jp-deployment.yml
  582  kubectl delete deployments.apps jp-deployment
  583  kubectl get deployments.apps
  584  kubectl delete -f jp-deployment.yml -n jp-namespace
  585  kubectl get pod -n jp-namespace
  586  kubectl get pod -n jp-namespace
  587  kubectl get namespaces
  588  kubectl get deployments.apps
  589  kubectl get deployments.apps -n jp-namespace
  590  clear
  591  kubectl run --image=nginx nginx
  592  kubectl get pod
  593  kubectl expose pod nginx-6db489d4b7-dbv5q --port 80
  594  kubectl get pod
  595  kubectl get service
  596  kubectl delete service kube-headless kubeserve2
  597  kubectl get service
  598  kubectl delete service nginx-nodeport
  599  kubectl get service
  600  curl 10.107.204.246
  601  kubectl delete service nginx-6db489d4b7-dbv5q
  602  kubectl get service
  603  kubectl expose pod nginx-6db489d4b7-dbv5q --port 80 --type NodePort
  604  kubectl get service
  605  curl 10.101.92.7
  606  kubectl get pod -o wide
  607  kubectl get pod
  608  kubectl expose pod nginx-6db489d4b7-dbv5q --port 80 --type NodePort
  609  kubectl expose pod nginx --port 80 --type NodePort
  610  kubectl logs -f nginx-6db489d4b7-dbv5q
  611  kubectl get depl
  612  kubectl get deploy
  613  kubectl get sv
  614  kubectl get svc
  615  kubectl get pod,deploy,svc,namespaces,node
  616  kubect get all
  617  kubect get --all
  618  kubectl get all
  619  kubectl delete nginx
  620  kubectl get pod
  621  kubectl delete nginx-6db489d4b7-dbv5q
  622  kubectl delete pod nginx-6db489d4b7-dbv5q
  623  kubectl delete service nginx-6db489d4b7-dbv5q
  624  kubectl delete namespaces jp-namespace