use setup-container.sh and setup-kubetools.sh and nothing else
This commit is contained in:
sandervanvugt
parent
36c4472664
commit
9ab48fd2b7
@ -1,10 +0,0 @@
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kind: Role
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apiVersion: rbac.authorization.k8s.io/v1beta1
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metadata:
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namespace: staff
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name: staff
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rules:
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- apiGroups: ["", "extensions", "apps"]
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resources: ["deployments", "replicasets", "pods"]
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verbs: ["list", "get", "watch", "create", "update", "patch", "delete"]
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@ -1,36 +0,0 @@
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kind: ClusterRole
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apiVersion: rbac.authorization.k8s.io/v1
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metadata:
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name: traefik-ingress-controller
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rules:
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- apiGroups:
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- ""
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resources:
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- services
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- endpoints
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- secrets
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verbs:
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- get
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- list
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- watch
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- apiGroups:
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- extensions
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resources:
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- ingresses
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verbs:
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- get
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- list
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- watch
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---
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kind: ClusterRoleBinding
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apiVersion: rbac.authorization.k8s.io/v1
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metadata:
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name: traefik-ingress-controller
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: traefik-ingress-controller
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subjects:
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- kind: ServiceAccount
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name: traefik-ingress-controller
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namespace: kube-system
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10
init2.yaml
10
init2.yaml
@ -1,10 +0,0 @@
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: myservice
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spec:
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ports:
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- protocol: TCP
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port: 80
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targetPort: 9376
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@ -1,69 +0,0 @@
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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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@ -1,254 +0,0 @@
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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
|
||||
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
|
||||
kubectl exec -it busybox22 -- nslookup default-subdomain
|
||||
kubectl exec -it busybox22 -- nslookup busybox-1
|
||||
kubectl get pods -n kube-system
|
||||
kubectl get service -n kube-system
|
||||
kubectl exec -it busybox22 -- cat /etc/resolv.conf
|
||||
kubectl -n kube-system describe pods coredns-6955765f44-4mg22
|
||||
for p in $(kubectl get pods -n kube-system -l k8s-app=kube-dns -o name); do kubectl logs -n kube-system $p; done
|
||||
kubectl get svc -n kube-system
|
||||
kubectl get ep kube-dns -n kube-system
|
||||
kubectl get pods --show-labels --all-namespaces
|
||||
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"
|
||||
kubectl exec busy22 -- sh -c "mkdir -p /var/exam && nslookup busy22 > /var/exam/dnsnames.txt"
|
||||
kubectl -it exec busy22 -- sh -c "mkdir -p /var/exam && nslookup busy22 > /var/exam/dnsnames.txt"
|
||||
kubectl get svc
|
||||
kubectl get pods
|
||||
kubectl -it exec busybox22 -- sh -c "mkdir -p /var/exam && nslookup busy22 > /var/exam/dnsnames.txt"
|
||||
kubectl -it exec busybox22 -- sh -c "mkdir -p /var/exam && nslookup busybox22 > /var/exam/dnsnames.txt"
|
||||
kubectl -it exec busybox22 -- nslookup busybox22
|
||||
kubectl get
|
||||
kubectl -it exec busybox22 -- nslookup myapp-pod
|
||||
kubectl get sv
|
||||
kubectl -it exec busybox22 -- nslookup mysvc
|
||||
iptables -L
|
||||
sudo iptables -L
|
||||
ssh root@worker1
|
||||
kubectl get pods -n kube-system
|
||||
ssh root@worker3
|
||||
kubectl get pods -o wide
|
||||
./counter.sh 10
|
||||
git clone https://github.com/kubernetes-incubator/metrics-server.git
|
||||
kubectl create -f metrics-server/deploy/1.8+/
|
||||
kubectl get all -n kube-system
|
||||
kubectl top pods
|
||||
kubectl top pods --all-namespaces
|
||||
kubectl -n kube-system edit deployment metrics-server
|
||||
kubectl -n kube-system logs metric-server
|
||||
kubectl -n kube-system logs metrics-server-d98f494df-jhdht
|
||||
kubectl top pods --all-namespaces
|
||||
ssh worker3
|
||||
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
|
||||
@ -1,78 +0,0 @@
|
||||
#!/bin/bash
|
||||
#
|
||||
# verified on Fedora 31, 33 and Ubuntu LTS 20.04
|
||||
|
||||
echo this script works on Fedora 31, 33 and Ubuntu 20.04
|
||||
echo it does NOT currently work on Fedora 32
|
||||
echo it requires the machine where you run it to have 6GB of RAM or more
|
||||
echo press Enter to continue
|
||||
read
|
||||
|
||||
##########
|
||||
echo ########################################
|
||||
echo WARNING
|
||||
echo ########################################
|
||||
echo Nov 2020 - currently this script is NOT supported on Mac OS Big Sur
|
||||
echo I will communicate here one Apple/VMware have provided updates that make it work again
|
||||
echo
|
||||
echo Check the Setup Guide provided in this repository for alternative installations
|
||||
echo
|
||||
echo press Enter to continue
|
||||
read
|
||||
|
||||
# setting MYOS variable
|
||||
MYOS=$(hostnamectl | awk '/Operating/ { print $3 }')
|
||||
OSVERSION=$(hostnamectl | awk '/Operating/ { print $4 }')
|
||||
|
||||
egrep '^flags.*(vmx|svm)' /proc/cpuinfo || (echo enable CPU virtualization support and try again && exit 9)
|
||||
|
||||
# debug MYOS variable
|
||||
echo MYOS is set to $MYOS
|
||||
|
||||
#### Fedora config
|
||||
if [ $MYOS = "Fedora" ]
|
||||
then
|
||||
if [ $OSVERSION = 32 ]
|
||||
then
|
||||
echo Fedora 32 is not currently supported
|
||||
exit 9
|
||||
fi
|
||||
|
||||
sudo dnf clean all
|
||||
sudo dnf -y upgrade
|
||||
|
||||
# install KVM software
|
||||
sudo dnf install @virtualization -y
|
||||
sudo systemctl enable --now libvirtd
|
||||
sudo usermod -aG libvirt `id -un`
|
||||
fi
|
||||
|
||||
### Ubuntu config
|
||||
if [ $MYOS = "Ubuntu" ]
|
||||
then
|
||||
sudo apt-get update -y
|
||||
sudo apt-get install -y apt-transport-https curl
|
||||
sudo apt-get upgrade -y
|
||||
sudo apt-get install -y qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils
|
||||
|
||||
sudo adduser `id -un` libvirt
|
||||
sudo adduser `id -un` kvm
|
||||
fi
|
||||
|
||||
# install kubectl
|
||||
curl -LO https://storage.googleapis.com/kubernetes-release/release/`curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt`/bin/linux/amd64/kubectl
|
||||
chmod +x ./kubectl
|
||||
sudo mv ./kubectl /usr/local/bin/kubectl
|
||||
|
||||
# install minikube
|
||||
echo downloading minikube, check version
|
||||
curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
|
||||
|
||||
sudo chmod +x minikube
|
||||
sudo mv minikube /usr/local/bin
|
||||
|
||||
# start minikube
|
||||
minikube start --memory 4096 --vm-driver=kvm2
|
||||
|
||||
echo if this script ends with an error, restart the virtual machine
|
||||
echo and manually run minikube start --memory 4096 --vm-driver=kvm2
|
||||
@ -1,10 +0,0 @@
|
||||
kind: Role
|
||||
apiVersion: rbac.authorization.k8s.io/v1beta1
|
||||
metadata:
|
||||
namespace: production
|
||||
name: dev-prod
|
||||
rules:
|
||||
- apiGroups: ["", "extensions", "apps"]
|
||||
resources: ["deployments", "replicasets", "pods"]
|
||||
verbs: ["list", "get", "watch"]
|
||||
|
||||
@ -1,13 +0,0 @@
|
||||
kind: RoleBinding
|
||||
apiVersion: rbac.authorization.k8s.io/v1beta1
|
||||
metadata:
|
||||
name: production-role-binding
|
||||
namespace: production
|
||||
subjects:
|
||||
- kind: User
|
||||
name: anna
|
||||
apiGroup: ""
|
||||
roleRef:
|
||||
kind: Role
|
||||
name: dev-prod
|
||||
apiGroup: ""
|
||||
@ -2,27 +2,66 @@
|
||||
# kubeadm installation instructions as on
|
||||
# https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/
|
||||
|
||||
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
|
||||
# this script supports centos 7 and Ubuntu 20.04 only
|
||||
# run this script with sudo
|
||||
|
||||
if ! [ $USER = root ]
|
||||
then
|
||||
echo run this script with sudo
|
||||
exit 3
|
||||
fi
|
||||
|
||||
# setting MYOS variable
|
||||
MYOS=$(hostnamectl | awk '/Operating/ { print $3 }')
|
||||
OSVERSION=$(hostnamectl | awk '/Operating/ { print $4 }')
|
||||
|
||||
##### CentOS 7 config
|
||||
if [ $MYOS = "centos" ]
|
||||
then
|
||||
echo RUNNING CENTOS CONFIG
|
||||
cat <<EOF > /etc/yum.repos.d/kubernetes.repo
|
||||
[kubernetes]
|
||||
name=Kubernetes
|
||||
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
|
||||
enabled=1
|
||||
gpgcheck=1
|
||||
repo_gpgcheck=1
|
||||
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
|
||||
EOF
|
||||
|
||||
# Set SELinux in permissive mode (effectively disabling it)
|
||||
setenforce 0
|
||||
sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config
|
||||
# Set SELinux in permissive mode (effectively disabling it)
|
||||
setenforce 0
|
||||
sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config
|
||||
|
||||
# disable swap (assuming that the name is /dev/centos/swap
|
||||
sed -i 's/^\/dev\/mapper\/centos-swap/#\/dev\/mapper\/centos-swap/' /etc/fstab
|
||||
swapoff /dev/mapper/centos-swap
|
||||
# disable swap (assuming that the name is /dev/centos/swap
|
||||
sed -i 's/^\/dev\/mapper\/centos-swap/#\/dev\/mapper\/centos-swap/' /etc/fstab
|
||||
swapoff /dev/mapper/centos-swap
|
||||
|
||||
yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes
|
||||
yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes
|
||||
|
||||
systemctl enable --now kubelet
|
||||
systemctl enable --now kubelet
|
||||
fi
|
||||
|
||||
if [ $MYOS = "Ubuntu" ]
|
||||
then
|
||||
echo RUNNING UBUNTU CONFIG
|
||||
cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
|
||||
br_netfilter
|
||||
EOF
|
||||
|
||||
sudo apt-get update && sudo apt-get install -y apt-transport-https curl
|
||||
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
|
||||
cat <<EOF | sudo tee /etc/apt/sources.list.d/kubernetes.list
|
||||
deb https://apt.kubernetes.io/ kubernetes-xenial main
|
||||
EOF
|
||||
|
||||
sudo apt-get update
|
||||
sudo apt-get install -y kubelet kubeadm kubectl
|
||||
sudo apt-mark hold kubelet kubeadm kubectl
|
||||
swapoff /swapfile
|
||||
|
||||
sed -i 's/swapfile/#swapfile/' /etc/fstab
|
||||
fi
|
||||
|
||||
# Set iptables bridging
|
||||
cat <<EOF > /etc/sysctl.d/k8s.conf
|
||||
|
||||
Loading…
Reference in New Issue
Block a user