TIPS Appunti Kuber

- Etcd db di stato (esterno interface db stato) raft

- c-m controller manager

- sched - scheduler

- c-c-m - Cloud controller manager (external interface)

- kubelet - agent

- k-proxy - Network manager del nodo

-

KUBCTL - YAML

1.22.0

In tutte le macchine base il containderid, kubelet (agent kubernates)

apiVersion: kubeadm.k8s.io/v1beta2 kind: ClusterConfiguration networking:

 serviceSubnet: "10.96.0.0/12"
 podSubnet: "172.16.0.1/23"
 dnsDomain: "cluster.local"

kubernetesVersion: "v1.22.0" controlPlaneEndpoint: "master:6443" clusterName: "desotech"

DSK201 - ParTech

K8S Install

sudo systemctl status containerd

curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -

sudo apt-add-repository "deb http://apt.kubernetes.io/ kubernetes-xenial main"

sudo apt update

sudo apt-get install -y kubeadm=1.22.0-00 kubelet=1.22.0-00 kubectl=1.22.0-00

sudo apt-mark hold kubeadm kubectl kubelet

sudo kubeadm config images pull

sudo systemctl enable --now kubelet.service

vi /home/student/ClusterConfiguration.yaml

https://goonlinetools.com/snapshot/code/#p136au80ajgy1iy6yv8ae

IMPORTANTE !!!!!

sudo modprobe br_netfilter

kubeadm init -- master

kubeadm join -- aggancio worker

Master

kubectl kubeadm - gestione kubelet