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Zubair Khan

SOURCE

KUBERNETES 1.26
CONTAINERD 1.6.16
UBUNTU 22.04

### ALL: 

sudo -s

printf "\n192.168.15.93 k8s-control\n192.168.15.94 k8s-2\n\n" >> /etc/hosts

printf "overlay\nbr_netfilter\n" >> /etc/modules-load.d/containerd.conf

modprobe overlay
modprobe br_netfilter

printf "net.bridge.bridge-nf-call-iptables = 1\nnet.ipv4.ip_forward = 1\nnet.bridge.bridge-nf-call-ip6tables = 1\n" >> /etc/sysctl.d/99-kubernetes-cri.conf

sysctl --system

wget https://github.com/containerd/containerd/releases/download/v1.6.16/containerd-1.6.16-linux-amd64.tar.gz -P /tmp/
tar Cxzvf /usr/local /tmp/containerd-1.6.16-linux-amd64.tar.gz
wget https://raw.githubusercontent.com/containerd/containerd/main/containerd.service -P /etc/systemd/system/
systemctl daemon-reload
systemctl enable --now containerd

wget https://github.com/opencontainers/runc/releases/download/v1.1.4/runc.amd64 -P /tmp/
install -m 755 /tmp/runc.amd64 /usr/local/sbin/runc

wget https://github.com/containernetworking/plugins/releases/download/v1.2.0/cni-plugins-linux-amd64-v1.2.0.tgz -P /tmp/
mkdir -p /opt/cni/bin
tar Cxzvf /opt/cni/bin /tmp/cni-plugins-linux-amd64-v1.2.0.tgz

mkdir -p /etc/containerd
containerd config default | tee /etc/containerd/config.toml------manually edit and change systemdCgroup to true
systemctl restart containerd

swapoff -a  ------ just disable it in /etc/fstab instead

apt-get update
apt-get install -y apt-transport-https ca-certificates curl

curl -fsSLo /etc/apt/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg
echo "deb [signed-by=/etc/apt/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | tee /etc/apt/sources.list.d/kubernetes.list

apt-get update

reboot

sudo -s

apt-get install -y kubelet=1.26.1-00 kubeadm=1.26.1-00 kubectl=1.26.1-00
apt-mark hold kubelet kubeadm kubectl

# check swap config, ensure swap is 0
free -m


### ONLY ON CONTROL NODE .. control plane install:
kubeadm init --pod-network-cidr 10.10.0.0/16 --kubernetes-version 1.26.1 --node-name k8s-control


# add Calico 3.25 CNI 
### https://docs.tigera.io/calico/3.25/getting-started/kubernetes/quickstart
kubectl create -f https://raw.githubusercontent.com/projectcalico/calico/v3.25.0/manifests/tigera-operator.yaml
wget https://raw.githubusercontent.com/projectcalico/calico/v3.25.0/manifests/custom-resources.yaml
vi custom-resources.yaml
# get worker node commands to run to join additional nodes into cluster
kubeadm token create --print-join-command


## ONLY ON WORKER nodes
Run the command from the token create output above
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