kbmaster
apt update
apt -y install curl apt-add-repository
apt -y install docker.io
systemctl enable docker
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add
apt-add-repository "deb http://apt.kubernetes.io/ kubernetes-xenial main"
apt -y install kubeadm
kubeadm init --pod-network-cidr=10.244.0.0/16
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
kubectl get pods --all-namespaces
echo “[WARNING] get join command”
echo “Command after join new node: kubectl get nodes”
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/master/aio/deploy/recommended/kubernetes-dashboard.yaml
kubectl proxy --address 0.0.0.0 -p 80 --accept-hosts='^143.106.16.*$,^xaveco.lab.ic.unicamp.br$' --disable-filter=true
kubectl apply -f https://www.ic.unicamp.br/~william/howto/dashboard-adminuser.yaml
kubectl apply -f https://www.ic.unicamp.br/~william/howto/role-adminuser.yaml
kubectl -n kube-system describe secret $(kubectl -n kube-system get secret | grep admin-user | awk '{print $1}')
kbnode
apt update apt -y install curl apt-add-repository apt -y install docker.io systemctl enable docker curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add apt-add-repository "deb http://apt.kubernetes.io/ kubernetes-xenial main" echo “execute join command”
Get Token
kubectl get secrets -o jsonpath="{.items[?(@.metadata.annotations['kubernetes\.io/service-account\.name']=='default')].data.token}"|base64 --decode
kubectl config set newconfig
kubectl proxy
# URL:
http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/#/node?namespace=default
Create kubeconfig file with kubectl http://docs.shippable.com/deploy/tutorial/create-kubeconfig-for-self-hosted-kubernetes-cluster/
apiVersion: v1
clusters:
- cluster: insecure-skip-tls-verify: true
server: https://server.x.x:8443
name: minikube contexts:
- context: cluster: minikube
user: minikube
name: minikube
current-context: minikube
kind: Config
preferences: {}
users:
- name: minikube
user: client-certificate: /home/william/.minikube/profiles/minikube/client.crt client-key: /home/william/.minikube/profiles/minikube/client.key
Dashboard: https://kubernetes.io/docs/tasks/access-application-cluster/web-ui-dashboard/
http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/
Como eh link http://localhost:8001/api/v1/namespaces/istio-system/services/http:kiali:9090/proxy/
Minikube kvm2
curl -LO https://storage.googleapis.com/minikube/releases/latest/docker-machine-driver-kvm2 chmod +x docker-machine-driver-kvm2 sudo mv docker-machine-driver-kvm2 /usr/local/bin/ docker-machine-driver-kvm2 version minikube config set vm-driver kvm2 cat .minikube/config/ minikube start --nodes 2 # or # minikube start --nodes 2 --vm-driver kvm2
nginx ingress baremetal
kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v0.47.0/deploy/static/provider/baremetal/deploy.yaml kubectl get all -n ingress-nginx kubectl edit deployment.apps/ingress-nginx-controller -n ingress-nginx and redeploy or kubectl edit replicaset.apps/ingress-nginx-controller-XXXXXXXXXX -n ingress-nginx
Others options: https://kubernetes.github.io/ingress-nginx/deploy/baremetal/
UI K8S
https://medium.com/geekculture/yakd-yet-another-kubernetes-dashboard-7766bd071f30
https://engineering.indeedblog.com/blog/2020/11/k8dash-indeeds-open-source-kubernetes-dashboard/