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sandervanvugt
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192
feb25.txt
192
feb25.txt
@ -94,3 +94,195 @@
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94 kubectl autoscale deploy webstress --min=2 --max=5 --cpu-percent=80
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95 kubectl get deploy webstress
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96 history > /tmp/feb25.txt
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97 kubectl edit deploy -n kube-system metrics-server
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98 helm
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99 helm repo add argo https://argoproj.github.io/argo-helm
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100 helm repo update
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101 helm search repo argo/argo-cd
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102 helm template my-argo-cd argo/argo-cd --version 7.8.3 > argo-cd-template.yaml
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103 vim argo-cd-template.yaml
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104 helm show values argo/argo-cd > values.yaml
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105 vim values.yaml
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106 helm template my-argocd argo/argo-cd -f values.yaml > argo-cd-template.yaml
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107 kubectl apply -f argo-cd-template.yaml
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108 kubectl get svc
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109 vim nwpolicy-complete-example.yaml
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110 kubectl apply -f nwpolicy-complete-example.yaml
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111 kubectl expose pod nginx --port=80
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112 kubectl exec -it busybox -- wget --spider --timeout=1
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113 kubectl exec -it busybox -- wget --spider --timeout=1 nginx
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114 kubectl get svc
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115 kubectl get nwp
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116 kubectl get netpol
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117 kubectl describe netpol access-nginx
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118 kubectl label pod busybox access=true
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119 kubectl exec -it busybox -- wget --spider --timeout=1 nginx
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120 history
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121 kubectl create ns nwp-namespace
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122 vim nwp-lab10-1.yaml
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123 kubectl create -f nwp-lab10-1.yaml
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124 kubectl expose pod nwp-nginx --port=80
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125 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx
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126 kubectl exec -it nwp-busybox -n nwp-namespace -- nslookup nwp-nginx
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127 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
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128 vim nwp-lab10-2.yaml
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129 kubectl apply -f nwp-lab10-2.yaml
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130 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
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131 kubectl create deploy busybox --image=busybox -- sleep 3600
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132 kubectl exec -it busybox-5c684d4858-9ckll -- wget --spider --timeout=1 nwp-nginx
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133 kubectl exec -it busybox-5c684d4858-9ckll -- cat /etc/resolv.conf
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134 kubectl cluster-info
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135 kubectl cluster-info dump | less
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136 history
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137 kubectl delete netpol access-nginx
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138 kubectl delete netpol deny-from-other-namespaces
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139 kubectl create ns restricted
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140 kubectl run -h | less
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141 kubectl run nginx --image=nginx -n restricted
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142 kubectl -n restricted expose pod nginx
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143 kubectl -n restricted expose pod nginx --port=80
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144 kubectl get pods
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145 kubectl get pods --show-labels
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146 history
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147 kubectl delete -f argo-cd-template.yaml
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148 vim apiVersion: networking.k8s.io/v1
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149 kind: NetworkPolicy
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150 metadata:
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151 spec:
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152 vim netpol.yaml
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153 kubectl get pods -n restricted --show-labels
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154 vim netpol.yaml
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155 kubectl get ns --show-labels
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156 vim netpol.yaml
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157 kubectl expose -n restricted nginx --port=80
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158 kubectl expose -n restricted pod nginx --port=80
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159 kubectl get pods
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160 history | grep wget
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161 kubectl exec -it busybox -- wget --spider --timeout=1 nginx.restricted.svc.cluster.local
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162 kubectl get netpol -n restricted
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163 kubectl apply -f netpol.yaml
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164 vim netpol.yaml
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165 kubectl apply -f netpol.yaml
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166 kubectl exec -it busybox -- wget --spider --timeout=1 nginx.restricted.svc.cluster.local
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167 kubectl label pod busybox access-
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168 kubectl label pod busybox access="yes"
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169 kubectl get pods --show-labels
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170 kubectl exec -it busybox -- wget --spider --timeout=1 nginx.restricted.svc.cluster.local
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171 history
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172 cat netpol.yaml
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173 kubectl describe node worker1
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174 kubectl top node
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175 kubectl top pods
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176 kubectl get pods -n kube-system
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177 cd /etc/kubernetes/manifests/
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178 ls
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179 vim kube-apiserver.yaml
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180 sudo vim kube-apiserver.yaml
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181 cd
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182 kubectl run staticpod --image=nginx --dry-run=client -o yaml
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183 kubectl get pods
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184 ps aux | grep kubelet
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185 sudo vim /var/lib/kubelet/config.yaml
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186 kubectl top pods
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187 sudo apt install etcd-client
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188 sudo etcdctl --help
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189 ls /etc/pki/
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190 ls /etc/kubernetes/pki/etcd/
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191 ps aux | grep etcd
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192 sudo etcdctl --endpoint=localhost:2379 --cacert /etc/kubernetes/pki/etc/ca.crt --cert /etc/kubernetes/pki/etcd/server.crt --key /etc/kubernetes/pki/etc/server.key get / --prefix --keys-only
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193 sudo etcdctl --endpoints=localhost:2379 --cacert /etc/kubernetes/pki/etc/ca.crt --cert /etc/kubernetes/pki/etcd/server.crt --key /etc/kubernetes/pki/etc/server.key get / --prefix --keys-only
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194 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
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195 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
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196 ls -l /tmp/etcdbackup.db
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197 sudo etcdctl --write-out=table snapshot status /tmp/etcdbackup.db
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198 cp /tmp/etcdbackup.db /tmp/etcdbackup.db.bak
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199 sudo cp /tmp/etcdbackup.db /tmp/etcdbackup.db.bak
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200 kubectl get deploy
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201 kubectl delete deploy busybox nginxgw webstress
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202 cd /etc/kubernetes/manifests/
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203 ls
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204 sudo mv * ..
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205 ls
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206 sudo crictl ps
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207 sudo mv /var/lib/etcd /var/lib/etcd-backup
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208 sudo etcdctl snapshot restore /tmp/etcdbackup.db --data-dir /var/lib/etcd
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209 sudo ls -l /var/lib/etcd
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210 sudo ls -l /var/lib/etcd/member
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211 cd ..
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212 cd manifests/
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213 ls
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214 sudo mv ../*.yaml .
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215 sudo crictl ps
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216 kubectl get deploy
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217 sudo apt update
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218 sudo apt-cache madison kubeadm
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219 kubectl get nodes
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220 cd
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221 cd cka/
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222 vim selector-pod.yaml
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223 kubectl apply -f selector-pod.yaml
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224 vim selector-pod.yaml
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225 kubectl apply -f selector-pod.yaml
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226 kubectl get pods
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227 kubectl describe pod nginxabc
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228 kubectl label nodes worker2 disktype=ssd
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229 kubectl get pods
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230 history
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231 kubectl get nodes
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232 kubectl get pods -o wide
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233 kubectl describe node worker1
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234 kubectl create deploy taintet --image=nginx --replicas=10
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235 kubectl get pods -o wide
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236 kubectl get nodes
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237 kubectl describe node worker1 | less
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238 kubectl edit node worker1
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239 kubectl describe node worker1 | less
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240 kubectl taint nodes worker1 storage=ssd:NoSchedule
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241 kubectl describe nodes worker1 | less
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242 kubectl create deploy nginx-taint --image=nginx --replicas=3
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243 kubectl get pods -o wide
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244 kubectl delete deploy taintet
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245 kubectl delete deploy nginx-taint
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246 vim taint-toleration.yaml
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247 kubectl get pods -o wide
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248 kubectl create -f taint-toleration.yaml
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249 kubectl get pods -o wide
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250 kubectl delete -f taint-toleration.yaml
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251 kubectl create deploy taintet --image=nginx --replicas=10
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252 kubectl get pods -o wide
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253* kubectl create -f taint-toleration.yaml
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254 kubectl get pods -o wide | grep toler
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255 vim taint-toleration2.yaml
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256 kubectl apply -f taint-toleration2.yaml
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257 kubectl get pods -o wide | grep toler
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258 kubectl get pods -o wide | grep hdd
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259 kubectl edit node worker1
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260 kubectl get pod -o wide
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261 kubectl create role --help | less
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262 kubectl create ns roles
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263 kubectl create role --help | less
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264 kubectl create role viewer --verb=get --verb=list --verb=watch --resource=pods -n roles
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265 kubectl get pods nginx -o yaml | less
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266 kubectl create sa viewers -n roles
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267 kubectl create rolebinding --help | less
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268 # kubectl create rolebinding admin-binding --role=admin --serviceaccount=monitoring:sa-dev
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269 kubectl create rolebinding viewers --role-viewer --serviceaccount=roles:viewers -n roles
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270 kubectl create rolebinding viewers --role=viewer --serviceaccount=roles:viewers -n roles
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271 kubectl run viewpod --image=nginx --dry-run=client -o yaml
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272 vim viewoid.yaml
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273 kubectl apply -f viewoid.yaml
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274 vim viewoid.yaml
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275 kubectl apply -f viewoid.yaml
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276 kubectl get pods viewpod -n roles -o yaml | less
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277 kubectl describe -n roles rolebindings.rbac.authorization.k8s.io
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278 kubectl run mypod --image=alpine -- sleep 3600
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279 kubectl get pods mypod -o yaml
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280 kubectl exec -it mypod -- sh
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281 kubectl create sa mysa
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282 kubectl create role list-pods --resource=pods --verb=list
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283 kubectl create rolebinding list-pods --role=list-pods --serviceaccount=default:mysa
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284 cat mysapod.yaml
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285 kubectl apply -f mysapod.yaml
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286 kubectl exec -it mysapod -- sh
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287 history
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288 history > /tmp/feb25.txt
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