kubeadm

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「キューブエーディーエム」

「キューブアドミン」がしっくりくる気がする

Requirements

OS

CPU

...

Install

code: (bash)

sudo apt-get update && sudo apt-get install -y apt-transport-https curl

cat <<EOF | sudo tee /etc/apt/sources.list.d/kubernetes.list

EOF

sudo apt-get update

sudo apt-get install -y kubelet kubeadm kubectl

# sudo apt-get install -y kubelet=1.23.0-00 kubeadm=1.23.0-00 kubectl=1.23.0-00

sudo apt-mark hold kubelet kubeadm kubectl

Init

code: (bash)

kubeadm init --apiserver-advertise-address $(hostname -i) --apiserver-cert-extra-sans $(hostname) --pod-network-cidr 10.244.0.0/16

# 出力

Your Kubernetes control-plane has initialized successfully!

To start using your cluster, you need to run the following as a regular user:

mkdir -p $HOME/.kube

sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config

sudo chown $(id -u):$(id -g) $HOME/.kube/config

Alternatively, if you are the root user, you can run:

export KUBECONFIG=/etc/kubernetes/admin.conf

You should now deploy a pod network to the cluster.

Then you can join any number of worker nodes by running the following on each as root:

kubeadm join 192.168.0.23:6443 --token ov68qv.2kgl0pfrvgavg38t \

--discovery-token-ca-cert-hash sha256:ad1e938c774fff6952160da32d09f13041fe55a0e0531ef8f0f7d32e4727ef27

# token 確認

kubeadm token list

Upgrade

control plane

kubeadm

drain

kubelet

data plane