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sandervanvugt 2025-07-15 18:57:27 +02:00
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1 sudo apt install -y git vim
2 git clone https://github.com/sandervanvugt/cka
3 cd cka
4 ls *sh
5 vim setup-container-previous-version
6 vim setup-container-previous-version.sh
7 sudo ./setup-container-previous-version.sh
8 history
9 ls *sh
10 sudo ./setup-kubetools-previousversion.sh
11 history
12 sudo kubeadm init
13 mkdir -p $HOME/.kube
14 kubectl get all
15 kubectl get pods -n kube-system
16 kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
17 kubectl get pods -n kube-system
18 kubectl get nodes
19 history
20 kubectl create deploy test --image=nginx --replicas=3
21 kubectl get all
22 kubectl completion -h
23 source <(kubectl completion bash)
24 kubectl api-resources | less
25 kubectl create ns limited
26 kubectl create quota --help | less
27 kubectl create quota qtest --hard pods=3,cpu=100m,memory=500Mi -n limited
28 kubectl describe quota -n limited
29 kubectl create deploy nginx --image=nginx --replicas=3 -n limited
30 kubectl get all -n limited
31 kubectl describe -n limited rs nginx-5869d7778c
32 kubectl set -h | less
33 kubectl set resources -n limited deploy nginx --requests cpu=100m,memory=5Mi --limits cpu=200m,memory=20Mi
34 kubectl get pods -n limited
35 kubectl describe -n limited quota
36 kubectl edit -n limited quota qtest
37 kubectl get all -n limited
38 kubectl scale -n limited deployment nginx --replicas=2
39 kubectl scale -n limited deployment nginx --replicas=3
40 kubectl get all -n limited
41 history
42 kubectl explain limitrange.spec
43 kubectl explain limitrange.spec.limits
44 kubectl create ns limited
45 vim limitrange.yaml
46 kubectl delete quota qtest -n limited
47 kubectl apply -f limitrange.yaml -n limited
48 kubectl describe ns limited
49 kubectl run limitpod --image=nginx -n limited
50 kubectl get pods
51 kubectl get pods -n limited
52 kubectl describe pod limitpod -n limited
53 history
54 kubectl create ns restricted
55 kubectl create quota -h | less
56 #kubectl create quota my-quota --hard=cpu=1,memory=1G,pods=2,services=3,replicationcontrollers=2,resourcequotas=1,secrets=5,persistentvolumeclaims=10
57 kubectl create -n restricted rquota --hard=memory=1G,pods=3
58 kubectl create -n restricted quota rquota --hard=memory=1G,pods=3
59 kubectl create -n restricted deploy task7deploy --image=nginx --replicas=3
60 kubectl set resources -h | less
61 #kubectl set resources deployment nginx -c=nginx --limits=cpu=200m,memory=512Mi
62 kubectl -n restricted set resources deploy task7deploy --limits=memory=128Mi
63 kubectl get all -n restricted
64 kubectl run busy --image=busybox -n restricted
65 kubectl run busy --image=busybox -n restricted --dry-run=client -o yaml > busy.yaml
66 kubectl edit deploy task7deploy -n restricted
67 vim busy.yaml
68 kubectl apply -f busy.yaml
69 history
70 kubectl get pods -n kube-system -o wide
71 ps aux | grep kubelet
72 systemctl status kubelet
73 ps aux | grep containerd
74 systemctl status containerd
75 sudo crictl ps
76 sudo vim /etc/crictl.yaml
77 sudo crictl ps -a
78 sudo crictl logs 89c71b33d194e
79 history
80 kubectl get nodes
81 kubectl cordon worker1
82 kubectl create deploy --image=nginx --replicas=7
83 kubectl create deploy myweb --image=nginx --replicas=7
84 kubectl get pods -o wide
85 kubectl get nodes
86 kubectl uncordon worker1
87 kubectl get pods -o wide
88 kubectl scale deployment myweb --replicas=1
89 kubectl scale deployment myweb --replicas=7
90 kubectl get pods -o wide
91 kubectl drain worker1
92 kubectl drain worker1 --ignore-daemonsets
93 kubectl get nodes
94 kubectl describe node worker1
95 kubectl uncordon worker1
96 kubectl delete deploy myweb
97 helm
98 sudo snap install helm
99 sudo snap install helm --classic
100 helm repo add argo https://argoproj.github.io/argo-helm
101 helm repo update
102 helm search repo argo/argo-cd
103 helm template my-argo-cd argo/argo-cd --version 8.1.3 > argo-cd-template.yaml
104 vin argo-cd-template.yaml
105 vim argo-cd-template.yaml
106 helm show values argo/argo-cd > values.yaml
107 vim values.yaml
108 helm template my-argocd argo/argo-cd -f values.yaml > argo-cd-template.yaml
109 kubectl get all
110 kubectl apply -f argo-cd-template.yaml
111 helm --help | less
112 vim nwpolicy-complete-example.yaml
113 kubectl apply -f nwpolicy-complete-example.yaml
114 kubectl expose pod nginx --port=80
115 kubectl get pods,svc
116 kubectl delete -f argo-cd-template.yaml
117 kubectl exec -it busybox -- wget --spider --timeout=1 nginx
118 kubectl describe netpol
119 kubectl get pods --show-labels
120 kubectl label pod busybox access=true
121 kubectl describe netpol
122 kubectl exec -it busybox -- wget --spider --timeout=1 nginx
123 kubectl create ns nwp-namespace
124 vim nwp-lab10-1.yaml
125 kubectl create -f nwp-lab10-1.yaml
126 kubectl expose pod nwp-nginx --port=80
127 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx
128 kubectl exec -it nwp-busybox -n nwp-namespace -- nslookup nwp-nginx
129 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
130 vim nwp-lab10-2.yaml
131 kubectl create -f nwp-lab10-2.yaml
132 kubectl exec -it nwp-busybox -n nwp-namespace -- wget --spider --timeout=1 nwp-nginx.default.svc.cluster.local
133 kubectl create deploy busybox --image=busybox -- sleep 3600
134 kubectl exec -it busybox-5c684d4858-rkcx9 -- wget --spider --timeout=1 nwp-nginx
135 history > /tmp/july25.txt