update after live class Jan. 2020
This commit is contained in:
Alexander van Vugt
parent
cf30c5aeff
commit
06e87ee507
69
jan20-live-class-root-history.txt
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69
jan20-live-class-root-history.txt
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@ -0,0 +1,69 @@
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nmtui
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exit
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systemctl disable --now firewalld
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ssh worker1
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ssh worker2
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ssh worker3
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vim /etc/fstab
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yum install -y git
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git clone https://github.com/sandervanvugt/cka
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cd cka
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ls
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vim setup-docker.sh
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./setup-docker.sh
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vim setup-kubetools.sh
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./setup-kubetools.sh
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./counter.sh 10
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kubeadm init
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ls
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vim join-net.sh
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su - student
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usermod -aG wheel student
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su - student
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ls
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scp join-net worker1:/root
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scp join-net.sh worker1:/root
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scp join-net.sh worker2:/root
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scp join-net.sh worker3:/root
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ssh worker1
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kubectl get nodes
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history
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su - student
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./counter.sh 20
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vim ex1.yaml
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kubectl api-resources
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exit
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vim /etc/hosts
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vi /etc/hosts
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yum install -y vim; yum update -y
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systemctl status firewalld
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systemctl disable --now firewalld
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ppppppoweroff
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poweroff
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cd /etc/yum.repos.d/
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ls
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vim kubernetes.repo
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yum repolist
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yum provides */etcdctl
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rpm -qa | grep etcd
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yum install -y etcd
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etcdctl -h
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etcdctl backup -h
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etcdctl snapshot -h
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etcdctl snapshot save -h
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etcdctl snapshot save --help
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ETCDCTL_API=3 etcdctl snapshot save --help
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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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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/snapshot.db
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history
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ps aux | grep etcd
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history
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ETCDCTL_API=3 etcdctl -h
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cd
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history
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exit
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systemctl status kubelet
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exit
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cd /etc/kubernetes/manifests/
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ls
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exit
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254
jan20-live-class-student-history.txt
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254
jan20-live-class-student-history.txt
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@ -0,0 +1,254 @@
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# this is an unedited copy of the student history file used in the
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# live class I've done on Jan. 16/17 2020. Use at your own risk
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mkdir -p .kube
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sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
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exit
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sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
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sudo chown $(id -u):$(id -g) $HOME/.kube/config
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cd .kube/
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ls -l
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cat config
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kubectl get all
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kubectl get nodes
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cd
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kubectl get pods -n kube-system
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kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"
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kubectl get pods -n kube-system
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sysctl -a | grep bridge-nf-call-iptables
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exit
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kubectl get nodes
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ssh root@worker2
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ssh root@worker3
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kubectl get nodes
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exit
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cat /etc/hosts
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su -
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kubectl api-resources
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kubectl api-resources | less
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kubectl get ns
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kubectl create namespace mynamespace
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kubectl create -h | less
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kubectl create namespace -h
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kubect get ns
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kubectl get ns
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kubectl explain pod
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kubectl explain pod.metadata
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git clone https://github.com/sandervanvugt/cka
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cd cka
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ls
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vim ex1.yaml
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kubectl create -f ex1.yaml
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kubectl get pods
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kubectl get pods -n mynamespace
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kubectl get pods --all-namespaces
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kubectl completion bash > ~/.kube/completion.bash.inc
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history
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cat ex1.yaml
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kubectl create deployment --image=busybox
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kubectl create deployment failin --image=busybox
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kubectl get pods
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vim exam.txt
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./counter.sh 10
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vim ex4.yaml
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kubectl create -f ex4.yaml
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vim ex4.yaml
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kubectl create -f ex4.yaml
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vim ex4.yaml
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kubectl create -f ex4.yaml
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cat ex4.yaml
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vim ex4.yaml
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kubectl get pods
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kubectl describe pods myapp-pod
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cp ex4.yaml ex4b.yaml
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vim ex4b.yaml
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kubectl create -f ex4b.yaml; kubectl get pods
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kubectl get pods
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ls
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cat ex1.yaml
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kubectl create deploy nginx-ex5 --image=nginx --replicas=5
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kubectl run deploy nginx-ex5 --image=nginx --replicas=5
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kubectl create deploy nginx-ex5b --image=nginx
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kubectl edit deploy nginx-ex5b
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kubectl get pods
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kubectl scale deployment nginx-ex5b --replicas=5
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kubectl run mydeploy --image busybox --command sleep 10000 --replicas 3 --dry-run -o yaml > mydep.yaml
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vim mydep.yaml
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kubectl create -f mydep.yaml
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vim mydep.yaml
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kubectl get all --selector run=mydeploy
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kubectl delete deployment mydeploy
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history
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kubectl get nodes
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kubectl explain pod.spec | less
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kubectl explain pod.spec.volumes | less
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cd cka/
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ls
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cd ..
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git clone https://github.com/sandervanvugt/ckad
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cd ckad/
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ls
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vim pv.yaml
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kubectl create -f pv.yaml
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kubectl get pv
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vim pvc.yaml
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kubectl create -f pvc.yaml
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kubectl get pvc
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kubectl get pv
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vim pv-pod.yaml
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kubectl explain pv.spec
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kubectl explain pv.spec.emptydir
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kubectl explain pod.spec.volumes.emptydir
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kubectl explain pod.spec.volumes.emptyDir
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kubectl explain pv.spec.emptyDir
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vim pv.yaml
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kubectl create -f pv.yaml
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vim pv.yaml
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kubectl get pv
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kubectl get pv pv-volume -o yaml > ex7.yaml
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vim ex7.yaml
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kubectl create -f ex7.yaml
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kubectl get pv emtpy-volume -o yaml
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kubectl explain persistentvolume.spec.persistentvolumereclaimpolicy
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kubectl explain persistentvolume.spec.persistentVolumeReclaimPolicy
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vim pv-pod.yaml
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kubectl create secret generic ex8-secret --from-literal=userpw=s3crt3tPW
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kubectl get secret ex8-secret -o yaml
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cd ../cka
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ls
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cd ../ckad/
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ls
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cd ../cka
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vim ex8-pod.yaml
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kubectl get pv
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kubectl get secret
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vim ex8-pod.yaml
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kubectl create -f ex8-pod.yaml
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vim ex8-pod.yaml
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kubectl create -f ex8-pod.yaml
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kubectl get pods
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kubectl exec -it secret-test-pod -- /bin/bash
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kubectl get secret
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kubectl get secret ex8-secret -o yaml
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./counter.sh 10
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kubectl get pods -n kube-system
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sudo docker ps
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sudo ps aux | grep etcd
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sudo find / -name "etcdctl"
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sudo etcdctl
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sudo yum provides etcdctl
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ping 8.8.8.8
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sudo -i
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source <(kubectl completion bash)
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kubectl -h | less
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kubectl cordon -h | less
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kubectl drain -h | less
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sudo yum install -y bash-completion
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source <(kubectl completion bash)
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kubectl get nodes
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kubectl cordon worker2.example.com
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kubectl get nodes
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kubectl uncordon worker2.example.com
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kubectl get nodes
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kubectl drain worker2.example.com
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exit
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source <(kubectl completion bash)
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echo "source <(kubectl completion bash)" >> > ~/.bashrc
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echo "source <(kubectl completion bash)" >> ~/.bashrc
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exit
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cd ckad/
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./countdown 20
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grep busybox2 *
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vim busybox.yaml
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kubectl create -f busybox.yaml
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exit
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kubectl get pods
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kubectl get svc
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kubectl exec -it busybox2 -- nslookup kubernetes
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cd cka
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ls
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vim pod-and-service-dns.yaml
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kubectl create -f pod-and-service-dns.yaml
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kubectl exec -it busybox22 -- nslookup default-subdomain
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kubectl exec -it busybox22 -- nslookup busybox-1
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kubectl get pods -n kube-system
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kubectl get service -n kube-system
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kubectl exec -it busybox22 -- cat /etc/resolv.conf
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kubectl -n kube-system describe pods coredns-6955765f44-4mg22
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for p in $(kubectl get pods -n kube-system -l k8s-app=kube-dns -o name); do kubectl logs -n kube-system $p; done
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kubectl get svc -n kube-system
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kubectl get ep kube-dns -n kube-system
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kubectl get pods --show-labels --all-namespaces
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kubectl run busy22 --image busybox --restart Never; kubectl expose pod busy22 --name mysvc --port 80 --type ClusterIP; kubectl exec busy22 -- sh -c "mkdir -p /var/exam && nslookup busy22 > /var/exam/dnsnames.txt"
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kubectl exec busy22 -- sh -c "mkdir -p /var/exam && nslookup busy22 > /var/exam/dnsnames.txt"
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kubectl -it exec busy22 -- sh -c "mkdir -p /var/exam && nslookup busy22 > /var/exam/dnsnames.txt"
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kubectl get svc
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kubectl get pods
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kubectl -it exec busybox22 -- sh -c "mkdir -p /var/exam && nslookup busy22 > /var/exam/dnsnames.txt"
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kubectl -it exec busybox22 -- sh -c "mkdir -p /var/exam && nslookup busybox22 > /var/exam/dnsnames.txt"
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kubectl -it exec busybox22 -- nslookup busybox22
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kubectl get
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kubectl -it exec busybox22 -- nslookup myapp-pod
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kubectl get sv
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kubectl -it exec busybox22 -- nslookup mysvc
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iptables -L
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sudo iptables -L
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ssh root@worker1
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kubectl get pods -n kube-system
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||||||
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ssh root@worker3
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kubectl get pods -o wide
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||||||
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./counter.sh 10
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git clone https://github.com/kubernetes-incubator/metrics-server.git
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kubectl create -f metrics-server/deploy/1.8+/
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kubectl get all -n kube-system
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kubectl top pods
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kubectl top pods --all-namespaces
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kubectl -n kube-system edit deployment metrics-server
|
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kubectl -n kube-system logs metric-server
|
||||||
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kubectl -n kube-system logs metrics-server-d98f494df-jhdht
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||||||
|
kubectl top pods --all-namespaces
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ssh worker3
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kubectl get pods --all-namespaces
|
||||||
|
kubectl top pods --all-namespaces
|
||||||
|
kubectl delete pod/busy22
|
||||||
|
kubectl top pods --all-namespaces
|
||||||
|
cd
|
||||||
|
vim .kube/config
|
||||||
|
sudo vim /etc/kubernetes/admin.conf
|
||||||
|
kubectl get pods -n kube-system
|
||||||
|
su -i
|
||||||
|
su -
|
||||||
|
kubectl get pods -n kube-system
|
||||||
|
kubectl -n kube-system delete pod metrics-server-d98f494df-jhdht
|
||||||
|
kubectl top pods --all-namespaces
|
||||||
|
kubectl create deployment mydaemonset --image nginx -o yaml --dry-run > ds.yaml
|
||||||
|
vim ds.yaml
|
||||||
|
kubectl api-resources | grep -i daemon
|
||||||
|
vim ds.yaml
|
||||||
|
kubectl create -f ds.yaml
|
||||||
|
cd cka
|
||||||
|
ls
|
||||||
|
vim daemonset-fluentd.yaml
|
||||||
|
kubectl explain DaemonSet
|
||||||
|
kubectl explain DaemonSet | less
|
||||||
|
vim daemonset-fluentd.yaml
|
||||||
|
kubectl create -f daemonset-fluentd.yaml
|
||||||
|
kubectl get daemonset.apps/fluentd-elasticsearch
|
||||||
|
kubectl get daemonset
|
||||||
|
vim daemonset-fluentd.yaml
|
||||||
|
kubectl -n kube-system get daemonset fluentd-elasticsearch -o yaml | less
|
||||||
|
history | grep edit
|
||||||
|
kubectl -n kube-system edit deployment metrics-server
|
||||||
|
history | grep delete
|
||||||
|
kubectl -n kube-system delete pod metrics-server-5d7898476-nhlq7
|
||||||
|
kubectl top pods --all-namespaces
|
||||||
|
kubectl -n kube-system edit deployment metrics-server
|
||||||
|
kubectl top pods --all-namespaces
|
||||||
|
kubectl top pods
|
||||||
|
kubectl -n kube-system edit deployment metrics-server
|
||||||
|
kubectl get pods -n kube-system
|
||||||
|
kubectl -n kube-system exec -it metrics-server-5d7898476-465j7 -- /bin/sh
|
||||||
|
kubectl -n kube-system exec -it metrics-server-5d7898476-465j7 -- /bin/bash
|
||||||
|
kubectl -n kube-system exec -it metrics-server-5d7898476-465j7 -- bash
|
||||||
|
history
|
||||||
|
exit
|
||||||
@ -1,36 +1,35 @@
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#!/bin/bash
|
#!/bin/bash
|
||||||
#
|
#
|
||||||
# verified on Fedora 29 Server
|
# verified on Fedora 31 WS
|
||||||
|
egrep '^flags.*(vmx|svm)' /proc/cpuinfo || (echo enable CPU virtualization support and try again && exit 9)
|
||||||
|
|
||||||
# add vbox repo
|
|
||||||
rm -f /etc/yum.repos.d/vbox.repo
|
|
||||||
|
|
||||||
cat << REPO >> /etc/yum.repos.d/vbox.repo
|
|
||||||
[virtualbox]
|
|
||||||
name=Fedora $releasever - $basearch - VirtualBox
|
|
||||||
baseurl=http://download.virtualbox.org/virtualbox/rpm/fedora/\$releasever/\$basearch
|
|
||||||
enabled=1
|
|
||||||
gpgcheck=0
|
|
||||||
repo_gpgcheck=0
|
|
||||||
gpgkey=https://www.virtualbox.org/download/oracle_vbox.asc
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|
||||||
REPO
|
|
||||||
|
|
||||||
dnf clean all
|
dnf clean all
|
||||||
dnf upgrade
|
dnf -y upgrade
|
||||||
|
|
||||||
# install vbox
|
# install KVM software
|
||||||
echo installing virtualbox
|
dnf install @virtualization -y
|
||||||
dnf install make perl kernel-devel gcc elfutils-libelf-devel -y
|
systemctl enable --now libvirtd
|
||||||
dnf install VirtualBox-5.2 -y
|
|
||||||
|
# install kubectl
|
||||||
echo installing kubectl
|
echo installing kubectl
|
||||||
dnf install kubernetes-client -y
|
cat <<EOF > /etc/yum.repos.d/kubernetes.repo
|
||||||
|
[kubernetes]
|
||||||
|
name=Kubernetes
|
||||||
|
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
|
||||||
|
enabled=1
|
||||||
|
gpgcheck=1
|
||||||
|
repo_gpgcheck=1
|
||||||
|
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
|
||||||
|
EOF
|
||||||
|
|
||||||
|
dnf install -y kubectl
|
||||||
|
|
||||||
|
# install minikube
|
||||||
echo downloading minikube, check version
|
echo downloading minikube, check version
|
||||||
curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
|
curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
|
||||||
|
|
||||||
chmod +x minikube
|
chmod +x minikube
|
||||||
cp minikube /usr/local/bin
|
mv minikube /usr/local/bin
|
||||||
|
|
||||||
echo at this point, reboot your Fedora Server. After reboot, manually run:
|
echo at this point, reboot your Fedora Workstation. After reboot, manually run as non-root
|
||||||
echo vboxconfig
|
echo minikube start --memory 4096 --vm-driver=kvm2
|
||||||
echo minikube start
|
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user