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sandervanvugt
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8f56553678
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135
july25.txt
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135
july25.txt
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1 sudo apt install -y git vim
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2 git clone https://github.com/sandervanvugt/cka
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3 cd cka
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4 ls *sh
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5 vim setup-container-previous-version
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6 vim setup-container-previous-version.sh
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7 sudo ./setup-container-previous-version.sh
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8 history
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9 ls *sh
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10 sudo ./setup-kubetools-previousversion.sh
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11 history
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12 sudo kubeadm init
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13 mkdir -p $HOME/.kube
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14 kubectl get all
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15 kubectl get pods -n kube-system
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16 kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
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17 kubectl get pods -n kube-system
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18 kubectl get nodes
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19 history
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20 kubectl create deploy test --image=nginx --replicas=3
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21 kubectl get all
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22 kubectl completion -h
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23 source <(kubectl completion bash)
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24 kubectl api-resources | less
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25 kubectl create ns limited
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26 kubectl create quota --help | less
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27 kubectl create quota qtest --hard pods=3,cpu=100m,memory=500Mi -n limited
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28 kubectl describe quota -n limited
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29 kubectl create deploy nginx --image=nginx --replicas=3 -n limited
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30 kubectl get all -n limited
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31 kubectl describe -n limited rs nginx-5869d7778c
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32 kubectl set -h | less
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33 kubectl set resources -n limited deploy nginx --requests cpu=100m,memory=5Mi --limits cpu=200m,memory=20Mi
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34 kubectl get pods -n limited
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35 kubectl describe -n limited quota
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36 kubectl edit -n limited quota qtest
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37 kubectl get all -n limited
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38 kubectl scale -n limited deployment nginx --replicas=2
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39 kubectl scale -n limited deployment nginx --replicas=3
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40 kubectl get all -n limited
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41 history
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42 kubectl explain limitrange.spec
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43 kubectl explain limitrange.spec.limits
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44 kubectl create ns limited
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45 vim limitrange.yaml
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46 kubectl delete quota qtest -n limited
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47 kubectl apply -f limitrange.yaml -n limited
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48 kubectl describe ns limited
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49 kubectl run limitpod --image=nginx -n limited
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50 kubectl get pods
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51 kubectl get pods -n limited
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52 kubectl describe pod limitpod -n limited
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53 history
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54 kubectl create ns restricted
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55 kubectl create quota -h | less
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56 #kubectl create quota my-quota --hard=cpu=1,memory=1G,pods=2,services=3,replicationcontrollers=2,resourcequotas=1,secrets=5,persistentvolumeclaims=10
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57 kubectl create -n restricted rquota --hard=memory=1G,pods=3
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58 kubectl create -n restricted quota rquota --hard=memory=1G,pods=3
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59 kubectl create -n restricted deploy task7deploy --image=nginx --replicas=3
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60 kubectl set resources -h | less
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61 #kubectl set resources deployment nginx -c=nginx --limits=cpu=200m,memory=512Mi
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62 kubectl -n restricted set resources deploy task7deploy --limits=memory=128Mi
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63 kubectl get all -n restricted
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64 kubectl run busy --image=busybox -n restricted
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65 kubectl run busy --image=busybox -n restricted --dry-run=client -o yaml > busy.yaml
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66 kubectl edit deploy task7deploy -n restricted
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67 vim busy.yaml
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68 kubectl apply -f busy.yaml
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69 history
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70 kubectl get pods -n kube-system -o wide
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71 ps aux | grep kubelet
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72 systemctl status kubelet
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73 ps aux | grep containerd
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74 systemctl status containerd
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75 sudo crictl ps
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76 sudo vim /etc/crictl.yaml
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77 sudo crictl ps -a
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78 sudo crictl logs 89c71b33d194e
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79 history
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80 kubectl get nodes
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81 kubectl cordon worker1
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82 kubectl create deploy --image=nginx --replicas=7
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83 kubectl create deploy myweb --image=nginx --replicas=7
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84 kubectl get pods -o wide
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85 kubectl get nodes
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86 kubectl uncordon worker1
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87 kubectl get pods -o wide
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88 kubectl scale deployment myweb --replicas=1
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89 kubectl scale deployment myweb --replicas=7
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90 kubectl get pods -o wide
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91 kubectl drain worker1
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92 kubectl drain worker1 --ignore-daemonsets
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93 kubectl get nodes
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94 kubectl describe node worker1
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95 kubectl uncordon worker1
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96 kubectl delete deploy myweb
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97 helm
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98 sudo snap install helm
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99 sudo snap install helm --classic
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100 helm repo add argo https://argoproj.github.io/argo-helm
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101 helm repo update
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102 helm search repo argo/argo-cd
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103 helm template my-argo-cd argo/argo-cd --version 8.1.3 > argo-cd-template.yaml
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104 vin argo-cd-template.yaml
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105 vim argo-cd-template.yaml
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106 helm show values argo/argo-cd > values.yaml
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107 vim values.yaml
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108 helm template my-argocd argo/argo-cd -f values.yaml > argo-cd-template.yaml
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109 kubectl get all
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110 kubectl apply -f argo-cd-template.yaml
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111 helm --help | less
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112 vim nwpolicy-complete-example.yaml
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113 kubectl apply -f nwpolicy-complete-example.yaml
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114 kubectl expose pod nginx --port=80
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115 kubectl get pods,svc
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116 kubectl delete -f argo-cd-template.yaml
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117 kubectl exec -it busybox -- wget --spider --timeout=1 nginx
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118 kubectl describe netpol
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119 kubectl get pods --show-labels
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120 kubectl label pod busybox access=true
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121 kubectl describe netpol
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122 kubectl exec -it busybox -- wget --spider --timeout=1 nginx
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123 kubectl create ns nwp-namespace
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124 vim nwp-lab10-1.yaml
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125 kubectl create -f nwp-lab10-1.yaml
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126 kubectl expose pod nwp-nginx --port=80
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127 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx
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128 kubectl exec -it nwp-busybox -n nwp-namespace -- nslookup nwp-nginx
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129 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
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130 vim nwp-lab10-2.yaml
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131 kubectl create -f nwp-lab10-2.yaml
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132 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
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133 kubectl create deploy busybox --image=busybox -- sleep 3600
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134 kubectl exec -it busybox-5c684d4858-rkcx9 -- wget --spider --timeout=1 nwp-nginx
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135 history > /tmp/july25.txt
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