message
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sandervanvugt
parent
5fe7238627
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e481dd85b0
291
april-2024-history.txt
Normal file
291
april-2024-history.txt
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@ -0,0 +1,291 @@
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1 ip a
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2 sudo apt install git vim -y
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3 git clone https://github.com/sandervanvugt/cka
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4 cd cka
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5 ls *sh
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6 ./setup-container.sh
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7 ls
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8 ls *sh
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9 ./setup-kubetools-previousversion.sh
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10 sudo apt install jq -y
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11 history
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12 sudo kubeadm init
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13 history
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14 mkdir ~/.kube
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15 sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
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16 sudo chown $(id -u):$(id -g) $HOME/.kube/config
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17 kubectl get all
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18 #kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
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19 kubectl get pods -n kube-system
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20 kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
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21 kubectl get pods -n kube-system
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22 kubectl get ds -n kube-system
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23 kubectl get nodes
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24 history
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25 kubectl create testapp --image=nginx --replicas=3
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26 kubectl create deploy testapp --image=nginx --replicas=3
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27 kubectl get all -o wide
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28 history
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29 cd ..
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30 ls
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31 tar xvf helm-v3.14.4-linux-amd64.tar.gz
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32 sudo mv linux-amd64/helm /usr/local/bin
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33 helm upgrade --install ingress-nginx ingress-nginx --repo https://kubernetes.github.io/ingress-nginx --namespace ingress-nginx --create-namespace
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34 source <(kubectl completion bash)
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35 kubectl get pods -n ingress-nginx
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36 kubectl create deploy nginxsvc --image=nginx --replicas=3
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37 kubectl get all --selector app=nginxsvc
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38 kubectl expose deploy nginxsvc
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39 kubectl expose deploy nginxsvc --port=80
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40 kubectl get all --selector app=nginxsvc
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41 kubectl describe svc nginxsvc
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42 kubectl create ingress nginxsvc --class=nginx --rule=nginxsvc.info/*=nginxsvc:80
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43 kubectl describe ing nginxsvc
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44 sudo vim /etc/hosts
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45 kubectl port-forward -n ingress-nginx svc/ingress-nginx-controller 8080:80
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46 bg
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47 curl nginxsvc.info
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48 curl nginxsvc.info:8080
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49 history
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50 curl nginxsvc.info:8080
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51 kubectl edit svc nginxsvc
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52 curl nginxsvc.info:8080
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53 kubectl describe ing nginxsvc
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54 kubectl describe svc nginxsvc
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55 kubectl edit svc nginxsvc
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56 curl nginxsvc.info:8080
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57 history
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58 kubectl create ns limited
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59 kubectl create quota -h | less
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60 kubectl create quota qtest --hard pods=3,cpu=100m,memory=500Mi --namespace=limited
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61 kubectl describe quota -n limited
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62 kubectl describe ns limited
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63 kubectl create deploy nginx --image=nginx --replicas=3 -n limited
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64 kubectl get all -n limited
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65 kubectl describe -n limited rs nginx-7854ff8877
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66 kubectl describe ns limited
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67 kubectl set resources -h | less
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68 kubectl set -n limited resources deploy nginx --requests cpu=100m,memory=5Mi --limits cpu=200m,memory=20Mi
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69 kubectl get all -n limited
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70 kubectl describe ns limited
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71 kubectl edit quota -n limited qtest
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72 kubectl describe ns limited
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73 kubectl scale -n limited deployment nginx --replicas=2
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74 kubectl scale -n limited deployment nginx --replicas=3
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75 kubectl describe ns limited
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76 history
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77 kubectl edit node control
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78 kubectl cordon worker1
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79 kubectl edit node worker1
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80 kubectl get nodes
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81 kubectl uncordon worker1
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82 kubectl get pods -n kube-system
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83 kubectl drain node worker1
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84 kubectl drain worker1
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85 kubectl get nodes
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86 kubectl edit node worker1
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87 kubectl get nodes
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88 kubectl get pods -o wide
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89 kubectl drain worker1
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90 kubectl get nodes
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91 kubectl drain worker1 --ignore-daemonsets
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92 kubectl edit node worker1
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93 kubectl get pods -o wide
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94 kubectl get nodes
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95 kubectl create deploy ready --image=nginx --replicas=3
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96 kubectl get pods -o wide --selector app=ready
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97 kubectl get nodes
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98 kubectl scale deploy ready --replicas=0
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99 kubectl scale deploy ready --replicas=3
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100 kubectl get pods -o wide --selector app=ready
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101 cd cka/
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102 vim networkpolicy-example.yaml
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103 git pull
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104 vim nwpolicy-complete-example.yaml
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105 kubectl apply -f nwpolicy-complete-example.yaml
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106 kubectl expose pod nginx --port=80
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107 kubectl exec -it busybox -- wget --spider --timeout=1 nginx
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108 kubectl label pod busybox access=true
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109 kubectl exec -it busybox -- wget --spider --timeout=1 nginx
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110 kubectl create ns nwp-namespace
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111 vim nwp-lab9-1.yaml
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112 kubectl apply -f nwp-lab9-1.yaml
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113 kubectl expose pod nwp-nginx --port=80
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114 kubectl exec -n nwp-namespace nwp-busybox -- wget --spider --timeout=1 nwp-nginx
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115 kubectl exec -n nwp-namespace nwp-busybox -- nslookup nwp-nginx
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116 kubectl exec -n nwp-namespace nwp-busybox -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
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117 vim nwp-lab9-2.yaml
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118 kubectl apply -f nwp-lab9-2.yaml
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119 kubectl exec -n nwp-namespace nwp-busybox -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
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120 kubectl create deploy busybox --image=busybox -- sleep 3600
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121 kubectl exec -it busybox-6fc6c44c5b-x5vrx -- wget --spider --timeput=1 nwp-nginx
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122 kubectl exec -it busybox-6fc6c44c5b-x5vrx -- wget --spider --timeout=1 nwp-nginx
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123 kubectl delete -f nwp-lab9-2.yaml
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124 history
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125 kubectl top
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126 kubectl top pod
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127 cd
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128 git clone https://github.com/kubernetes-sigs/metrics-server.git
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129 cd metrics-server/
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130 ls
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131 kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
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132 kubectl -n kube-system get pods
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133 kubectl logs -n kube-system metrics-server-6d94bc8694-76vzc
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134 kubectl -n kube-system get deploy
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135 kubectl -n kube-system edit deployments.apps metrics-server
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136 kubectl get pods -n kube-system
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137 kubectl top pods
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138 cd /etc/kubernetes/manifests/
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139 ls
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140 cd
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141 cd -
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142 less kube-scheduler.yaml
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143 sudo less kube-scheduler.yaml
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144 cd
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145 kubectl run auto-web --image=nginx --dry-run=client -o yaml > auto-web.yaml
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146 cat auto-web.yaml
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147 kubectl get pods
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148 cd /etc/kubernetes/manifests/
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149 ls -l
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150 sudo apt install etcd-client
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151 sudo etcdctl --help
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152 sudo ETCDCTL_API=3 etcdctl --help
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153 ps aux | grep etcd
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154 cd ../pki/
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155 ls
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156 cd etcd/
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157 ls
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158 cd
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159 sudo ETCDCTL_API=3 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
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160 sudo ETCDCTL_API=3 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
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161 ls -l /tmp/etcdbackup.db
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162 sudo ETCDCTL_API=3 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-$(date +%d-%m-%y).db
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163 cd /etc/kubernetes/manifests/
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164 ls
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165 sudo vim etcd.yaml
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166 cd
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167 history
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168 sudo ETCDCTL_API=3 etcdctl --write-out=table snapshot status /tmp/etcdbackup.db
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169 cp /tmp/etcdbackup.db /tmp/etcdbackup.db.2
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170 kubectl get deploy
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171 kubectl delete deploy --all
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172 cd /etc/kubernetes/manifests/
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173 ls
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174 ls ..
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175 sudo mv * ..
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176 ls
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177 sudo crictl ps
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178 sudo mkdir /var/lib/etcd-backup
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179 sudo ETCDCTL_API=3 etcdctl snapshot restore /tmp/etcdbackup.db --data-dir /var/lib/etcd-backup
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180 sudo rmdir /var/lib/etcd-backup/
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181 sudo ETCDCTL_API=3 etcdctl snapshot restore /tmp/etcdbackup.db --data-dir /var/lib/etcd-backup
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182 sudo ls -l /var/lib/etcd-backup/
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183 sudo ls -l /var/lib/etcd-backup/member
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184 sudo ls -l /var/lib/etcd/member
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185 sudo vim /etc/kubernetes/etcd.yaml
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186 sudo mv ../*.yaml .
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187 ls
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188 sudo crictl ps
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189 kubectl get deploy -A
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190 sudo mv ../*.yaml .
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191 sudo mv *.yaml ..
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192 ls
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193 vim ../etcd.yaml
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194 sudo vim ../etcd.yaml
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195 sudo mv /var/lib/etcd /var/lib/etcd.old
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196 sudo mv /var/lib/etcd-backup /var/lib/etcd
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197 sudo vim ../etcd.yaml
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198 mv ../*.yaml .
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199 sudo mv ../*.yaml .
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200 sudo crictl ps
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201 kubectl get deploty
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202 kubectl get deploy
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203 cd
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204 history
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205 sudo apt update
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206 sudo apt-cache madison kubeadm
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207 kubeadm version
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208 sudo apt update
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209 sudo apt-cache madison kubeadm
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210 sudo apt-mark unhold kubeadm
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211 udo apt-get update && sudo apt-get install -y kubeadm='1.29.3-*'
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212 sudo apt-get update && sudo apt-get install -y kubeadm='1.29.3-*'
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213 pager /etc/apt/sources.list.d/kubernetes.list
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214 vim /etc/apt/sources.list.d/kubernetes.list
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215 sudo vim /etc/apt/sources.list.d/kubernetes.list
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216 history
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217 sudo apt update
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218 sudo apt-cache madison kubeadm
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219 sudo apt-get update && sudo apt-get install -y kubeadm='1.29.3-1'
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220 sudo apt-get update && sudo apt-get install -y kubeadm='1.29.3-1.1'
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221 sudo apt-mark hold kubeadm
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222 kubeadm version
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223 sudo kubeadm upgrade plan
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224 sudo kubeadm upgrade apply v1.29.3
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225 sudo apt-mark unhold kubelet kubectl
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226 sudo apt-get update && sudo apt-get install -y kubelet='1.29.3-1.1' kubectl='1.29.3-1.1'
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227 sudo apt-mark hold kubelet kubectl
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228 sudo systemctl daemon-reload
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229 sudo systemctl restart kubelet
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230 kubectl get nodes
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231 kubectl get pods
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232 history
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233 kubectl edit node control
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234 kubectl get pods -A -o wide
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235 kubectl explain pod.spec.nodeSelector
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236 cd cka/
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237 vim selector-pod.yaml
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238 kubectl apply -f selector-pod.yaml
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239 kubectl delete pods --all
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240 kubectl apply -f selector-pod.yaml
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241 kubectl get pods
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242 kubectl describe pods nginx
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243 kubectl label nodes worker2 disktype=ssd
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244 kubectl get pods
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245 kubectl taint nodes worker1 example-key=value1:NoSchedule
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246 kubectl describe nodes worker1
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247 kubectl cordon worker2
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248 kubectl create deploy nginx-taint --image=nginx
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249 kubectl scale deploy nginx-taint --replicas=3
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250 kubectl get pods -o wide
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251 vim taint-toleration.yaml
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252 kubectl apply -f taint-toleration.yaml
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253 kubectl get pods
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254 kubectl get pods -o wide
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255 kubectl edit node worker1
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256 kubectl edit node worker2
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257 kubectl get nodes
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258 kubectl get pods -o wide
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259 vim pod-with-node-affinity.yaml
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260 vim pod-with-node-anti-affinity.yaml
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261 vim pod-with-node-antiaffinity.yaml
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262 vim pod-with-pod-affinity.yaml
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263 history
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264 kubectl create role -h | less
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265 #kubectl create role pod-reader --verb=get --verb=list --verb=watch --resource=pods
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266 kubectl create ns roles
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267 kubectl create role viewers --verb=get --verb=list --verb=watch --resource=pods -n roles
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268 kubectl run viewpod --image=nginx --dry-run=client -o yaml > viewpod.yaml
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269 kubectl create sa viewers
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270 kubectl explain pod.spec.serviceaccount
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271 kubectl explain pod.spec.serviceAccount
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272 vim viewpod.yaml
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273 kubectl get sa -n roles
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274 kubectl create sa viewers -n roles
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275 kubectl get sa -n roles
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276 vim viewpod.yaml
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277 kubectl explain pod.metadata
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278 vim viewpod.yaml
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279 kubectl get roles -n roles
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280 kubectl create rolebinding -h | less
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281 #kubectl create rolebinding admin-binding --role=admin --serviceaccount=monitoring:sa-dev
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282 kubectl -n roles create rolebinding viewers --role=viewers --serviceaccount=roles:viewers
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283 kubectl get roles,rolebindings,sa -n roles
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284 history
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285 kubectl api-resources | less
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286 kubectl get roles,rolebindings,sa -n roles
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287 kubectl get pods -n kube-system
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288 kubectl get -n kube-system pod metrics-server-67fc4df55-9ddb8 -o yaml | grep -i serviceacc
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289 kubectl config view
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290 history
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Block a user