message
This commit is contained in:
sandervanvugt
parent
e4078cf881
commit
0630eb32e6
282
history-15Oct24.txt
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282
history-15Oct24.txt
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1 git clone https://github.com/sandervanvugt/cka
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2 cd cka
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3 ls
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4 ./setup-container.sh
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5 ls
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6 ./setup-kubetools.sh
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7 history
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8 sudo kubeadm init
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9 cd
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10 mkdir -p $HOME/.kube
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11 kubectl get all
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12 kubectl get pods -n kube-system
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13 source <(kubectl completion bash)
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14 kubectl describe -n kube-system pod coredns-7c65d6cfc9-z5rsc
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15 kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
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16 kubectl get pods -n kube-system
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17 history
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18 kubectl get nodes
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19 kubectl describe node control
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20 history
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21 cd cka/
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22 ./counter.sh 12
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23 kubectl get nodes
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24 sudo apt install helm
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25 helm
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26 cd ..
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27 ls
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28 tar xvf helm-v3.16.2-linux-arm64.tar.gz
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29 sudo cp linux-arm64/helm /usr/local/bin
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30 helm upgrade --install ingress-nginx ingress-nginx --repo https://kubernetes.github.io/ingress-nginx --namespace ingress-nginx --create-namespace
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31 kubectl get all -n ingress-nginx
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32 history
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33 kubectl create deploy nginxsvc --image=nginx --port=80
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34 kubectl expose deploy nginxsvc
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35 kubectl get all --selector app=nginxsvc
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36 kubectl create ingress nginxsvc --class=nginx --rule=nginxsvc.info/*=nginxsvc:80
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37 kubectl port-forward -n ingress-nginx svc/ingress-nginx-controller 8080:80
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38 bg
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39 sudo sh -c 'echo "127.0.0.1 nginxsvc.info" >> /etc/hosts'
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40 cat /etc/hosts
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41 curl nginxsvc.info:8080
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42 kubectl create ing -h | less
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43 history
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44 kubectl get all -n ingress-nginx
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45 kubectl edit -n ingress-nginx svc ingress-nginx-controller
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46 kubectl get all -n ingress-nginx
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47 cd cka
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48 ./counter.sh 1
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49 history
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50 kubectl edit svc nginxsvc
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51 kubectl describe ingress nginxsvc
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52 kubectl describe svc nginxsvc
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53 kubectl edit svc nginxsvc
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54 kubectl describe svc nginxsvc
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55 kubectl describe node control | less
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56 df -h
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57 kubectl create ns limited
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58 kubectl create quota qtest --hard pods=3,cpu=100m,memory=500Mi
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59 kubectl get pods
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60 kubectl scale deploy nginxsvc --replicas=5
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61 kubectl get all
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62 kubectl delete quota qtest
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63 kubectl scale deploy nginxsvc --replicas=5 -n limited
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64 kubectl create quota qtest --hard pods=3,cpu=100m,memory=500Mi -n limited
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65 kubectl describe quota -n limited
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66 kubectl create deploy nginx --image=nginx --replicas=3 -n limited
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67 kubectl get all -n limited
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68 kubectl describe rs nginxsvc-7f8cdcb4db
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69 kubectl get all -n limited
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70 kubectl -n limited describe rs nginx-676b6c5bbc
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71 history
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72 kubectl -n limited set resources deploy nginx --requests cpu=100m,memory=5Mi --limits cpu=200m,memory=20m
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73 kubectl -n limited set resources deploy nginx --requests cpu=100m,memory=20Mi --limits cpu=200m,memory=40m
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74 kubectl -n limited set resources deploy nginx --requests cpu=100m,memory=20Mi --limits cpu=200m,memory=40Mi
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75 kubectl get pods -n limited
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76 kubectl get all -n limited
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77 kubectl scale -n limited deploy nginx --replicas=4
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78 kubectl scale -n limited deploy nginx --replicas=3
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79 kubectl get all -n limited
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80 kubectl describe -n limited quota qtest
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81 kubectl edit quota -n limited qtest
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82 kubectl get all -n limited
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83 kubectl scale -n limited deploy nginx --replicas=3
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84 kubectl get all -n limited
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85 kubectl describe -n limited quota qtest
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86 kubectl scale -n limited deploy nginx --replicas=2
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87 kubectl get all -n limited
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88 kubectl scale -n limited deploy nginx --replicas=3
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89 kubectl get all -n limited
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90 history
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91 kubectl create ns limited
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92 vim limitrange.yaml
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93 kubectl apply -f limitrange.yaml -n limited
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94 kubectl describe ns limited
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95 kubectl run limitpod --image=nginx -n limited
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96 kubectl -n limited delete quota
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97 kubectl -n limited delete quota qtest
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98 kubectl run limitpod --image=nginx -n limited
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99 kubectl describe -n limited pod limitpod
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100 history
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101 kubectl get pods -A -o wide
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102 kubectl get pods -o wide
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103 kubectl create deploy testdeploy --image=nginx --replicas=6
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104 kubectl get pods -o wide
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105 kubectl drain worker2
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106 kubectl drain worker2 --ignore-daemonsets --force
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107 kubectl get pods
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108 kubectl get pods -o wide
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109 kubectl get nodes
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110 kubectl describe node worker2
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111 kubectl edit node worker2
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112 kubectl uncordon worker2
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113 kubectl get pods -o wide
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114 kubectl create newweb --image=nginx --replicas=20
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115 kubectl create deploy newweb --image=nginx --replicas=20
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116 kubectl get pods -o wide
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117 kubectl delete deploy newweb
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118 history
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119 sudo ls -l /etc/kubernetes/manifests
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120 kubectl run staticpod --image=nginx --dry-run=client -o yaml
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121 kubectl get pods
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122 sudo -i
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123 history >> /tmp/history-14Oct24.txt
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124 vim /tmp/history-14Oct24.txt
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125 kubectl config view
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126 kubectl api-resources | grep -i networkp
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127 vim nwpolicy-complete-example.yaml
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128 kubectl apply -f nwpolicy-complete-example.yaml
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129 kubectl expose pod nginx --port=80
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130 kubectl get svc
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131 kubectl exec -it busybox -- wget --spider --timeout=1 nginx
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132 vim nwpolicy-complete-example.yaml
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133 kubectl lab pod busybox access=true
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134 kubectl label pod busybox access=true
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135 kubectl exec -it busybox -- wget --spider --timeout=1 nginx
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136 history
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137 kubectl create ns new-namespace
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138 kubectl create ns nwp-namespace
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139 vim nwp-lab9-1.yaml
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140 kubectl create -f nwp-lab9-1.yaml
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141 kubectl expose pod nwp-nginx --port=80
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142 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx
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143 kubectl exec -it nwp-busybox -n nwp-namespace -- nslookup nwp-nginx
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144 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
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145 vim nwp-lab9-2.yaml
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146 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
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147 kubectl apply -f nwp-lab9-2.yaml
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148 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
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149 kubectl create deploy busybox --image=busybox --sleep 3600
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150 kubectl create deploy busybox --image=busybox -- sleep 3600
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151 kubectl exec -it busybox-75cd85d546-wd6wq -- wget --spider --timeout=1 nwp-nginx
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152 kubectl get netpol
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153 kubectl delete netpol access-nginx
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154 kubectl delete netpol deny-from-other-namespaces
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155 history
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156 kubectl top pods
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157 kubectl top node
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158 kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
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159 kubectl -n kube-system get pods
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160 kubectl edit -n kube-system deployments.apps metrics-server
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161 kubectl -n kube-system get pods
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162 kubectl top pods
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163 history
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164 kubectl get quota
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165 kubectl create quota -h | less
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166 #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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167 kubectl create quota one --hard=cpu=1
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168 kubectl create quota two --hard=memory=4G
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169 kubectl create quota three --hard=cpu=2
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170 kubectl describe ns default
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171 kubectl delete quota one two three
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172 kubectl top -h | less
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173 kubectl top pod -h | less
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174 kubectl top pod -A --sort-by="memory"
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175 history
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176 kubectl run testpox --image=nginx --dry-run=client -o yaml
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177 kubectl get pods
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178 history
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179 kubectl get pods
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180 sudo apt install etcd-client
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181 sudo etcdctl --help
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182 sudo ETCDCTL_API=2 etcdctl --help
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183 sudo ETCDCTL_API=3 etcdctl --help
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184 ps aux | grep 2379
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185 sudo etcdctl --endpoints=localhost:2379 --cacert /etc/kubernetes/pki/etcd/ca.rt --cert /etc/kubernetes/pki/etcd/server.crt --key /etc/kubernetes/pki/etcd/server.key get / --prefix --keys-only
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186 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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187 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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188 ls -l /tmp/etcdbackup.db
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189 sudo etcdctl --write-out=table snapshot status /tmp/etcdbackup.db
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190 cp /tmp/etcdbackup.db /tmp/etcdbackup.db.2
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191 sudo cp /tmp/etcdbackup.db /tmp/etcdbackup.db.2
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192 history
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193 kubectl get deploy
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194 kubectl delete deploy --all
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195 kubectl get deploy
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196 cd /etc/kubernetes/manifests/
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197 ls
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198 sudo mv * ..
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199 sudo dnf install tree
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200 sudo apt install tree
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201 sudo tree /var/lib/etcd
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202 sudo mv /var/lib/etcd /var/lib/etcd-backup
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203 sudo tree /var/lib/etcd
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204 sudo etcdctl snapshot restore /tmp/etcdbackup.db --data-dir /var/lib/etcd
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205 sudo tree /var/lib/etcd
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206 sudo mv ../*.yaml .
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207 sudo crictl ps
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208 kubectl get deploy
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209 kubectl get pods
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210 kubectl delete deploy testdeploy
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211 history
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212 kubectl get nodes
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213*
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214 cd
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215 vim nodesel.yam;l
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216 vim nodesel.yaml
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217 kubectl apply -f nodesel.yaml
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218 kubectl get pods -o yaml
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219 kubectl get pods -o wide
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220 vim nodesel.yaml
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221 kubectl apply -f nodesel.yaml
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222 kubectl get pods
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223 kubectl describe pod islectnginxxxxxx
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224 kubectl get deploy
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225 kubectl get pods
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226 kubectl delete pods --force --timeout=0 testdeploy-7cd7d7ddc8-28mcq testdeploy-7cd7d7ddc8-fqh6v testdeploy-7cd7d7ddc8-ftk48 testdeploy-7cd7d7ddc8-pd7sd testdeploy-7cd7d7ddc8-stj67 testdeploy-7cd7d7ddc8-stxsx
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227 kubectl get pods
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228 history
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229 kubectl get node control -o yaml | less
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230 kubectl get ds -A
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231 kubectl get ds -n kube-system kube-proxy -o yaml | less
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232 kubectl get ds -n kube-system calico-node -o yaml | less
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233 history
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234 kubectl taint nodes worker1 storage=ssd:NoSchedule
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235 kubectl describe node worker1
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236 kubectl create deploy nginx-taint --image=nginx --replicas=3
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237 kubectl get pods -o wide
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238 cd cka/
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239 vim taint-toleration.yaml
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240 kubectl apply -f taint-toleration.yaml
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241 kubectl get pods -o wide | grep tole
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242 vim taint-toleration2.yaml
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243 kubectl apply -f taint-toleration2.yaml
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244 kubectl get pods -o wide | grep hdd
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245 vim taint-toleration2.yaml
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246 kubectl apply -f taint-toleration2.yaml
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247 vim taint-toleration2.yaml
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248 kubectl apply -f taint-toleration2.yaml
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249 kubectl get pods -o wide | grep exists
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250 history
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251 vim ~/.kube/config
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252 kubectl get sa
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253 kubectl get sa -n kube-system
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254 kubectl create role -h | less
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255 kubectl create rolebinding -h | less
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256 kubectl run mypod --image=alpine -- sleep 3600
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257 kubectl get pods mypod -o yaml | less
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258 kubectl exec -it mypod -- sh
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259 historyt
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260 history
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261 kubectl create sa mysa
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262 kubectl create role list-pods --resource=pods --verbs=list
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263 kubectl create role list-pods --resource=pods --verb=list
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264 kubectl describe role list-pods
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265 kubectl create rolebinding list-pods --role=list-pods --serviceaccount=default:default
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266 vim mysapod.yaml
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267 kubectl apply -f mysapod.yaml
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268 kubectl exec -it mysapod -- sh
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269 ls *role*
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270 grep -li 'type=role' *
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271 kubectl get rolebindings
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272 kubectl create rolebinding list-pods --role=list-pods --serviceaccount=default:mysa
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273 kubectl delete rolebindings.rbac.authorization.k8s.io list-pods
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274 kubectl create rolebinding list-pods --role=list-pods --serviceaccount=default:mysa
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275 kubectl exec -it mysapod -- sh
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276 kubectl get pods
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277 kubectl delete pod mysapod
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278 kubectl delete pod mysapod --force --timeout=1
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279 kubectl delete pod mysapod --force --timeout=0
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280 kubectl apply -f mysapod.yaml
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281 kubectl exec -it mysapod -- sh
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282 history > /tmp/history-15Oct24.txt
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69
setup-container-previous-version 2.sh
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69
setup-container-previous-version 2.sh
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#!/bin/bash
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# script that runs
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# https://kubernetes.io/docs/setup/production-environment/container-runtime
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# changes March 14 2023: introduced $PLATFORM to have this work on amd64 as well as arm64
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# setting MYOS variable
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MYOS=$(hostnamectl | awk '/Operating/ { print $3 }')
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OSVERSION=$(hostnamectl | awk '/Operating/ { print $4 }')
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# beta: building in ARM support
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[ $(arch) = aarch64 ] && PLATFORM=arm64
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[ $(arch) = x86_64 ] && PLATFORM=amd64
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if [ $MYOS = "Ubuntu" ]
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then
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### setting up container runtime prereq
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cat <<- EOF | sudo tee /etc/modules-load.d/containerd.conf
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overlay
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br_netfilter
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EOF
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sudo modprobe overlay
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sudo modprobe br_netfilter
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# Setup required sysctl params, these persist across reboots.
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cat <<- EOF | sudo tee /etc/sysctl.d/99-kubernetes-cri.conf
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net.bridge.bridge-nf-call-iptables = 1
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net.ipv4.ip_forward = 1
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net.bridge.bridge-nf-call-ip6tables = 1
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EOF
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# Apply sysctl params without reboot
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sudo sysctl --system
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# (Install containerd)
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sudo apt-get update && sudo apt-get install -y containerd
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# hopefully temporary bugfix as the containerd version provided in Ubu repo is tool old
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# added Jan 26th 2023
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# this needs to be updated when a recent enough containerd version will be in Ubuntu repos
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sudo systemctl stop containerd
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# cleanup old files from previous attempt if existing
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[ -d bin ] && rm -rf bin
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wget https://github.com/containerd/containerd/releases/download/v1.6.15/containerd-1.6.15-linux-${PLATFORM}.tar.gz
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tar xvf containerd-1.6.15-linux-${PLATFORM}.tar.gz
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sudo mv bin/* /usr/bin/
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# Configure containerd
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sudo mkdir -p /etc/containerd
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cat <<- TOML | sudo tee /etc/containerd/config.toml
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version = 2
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[plugins]
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[plugins."io.containerd.grpc.v1.cri"]
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[plugins."io.containerd.grpc.v1.cri".containerd]
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discard_unpacked_layers = true
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[plugins."io.containerd.grpc.v1.cri".containerd.runtimes]
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[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
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runtime_type = "io.containerd.runc.v2"
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[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
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SystemdCgroup = true
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TOML
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# Restart containerd
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sudo systemctl restart containerd
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fi
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sudo ln -s /etc/apparmor.d/runc /etc/apparmor.d/disable/
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sudo apparmor_parser -R /etc/apparmor.d/runc
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touch /tmp/container.txt
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Loading…
Reference in New Issue
Block a user