Installation of NEVIS

Introduction

I decided to install NEVIS inside a kubernetes cluster.

Installation of kubernetes

Add the Kubernetes yum repository. If you want to use Kubernetes version different than v1.31, replace v1.31 with the desired minor version in the command below.

# This overwrites any existing configuration in /etc/yum.repos.d/kubernetes.repo
cat <<EOF | sudo tee /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://pkgs.k8s.io/core:/stable:/v1.31/rpm/
enabled=1
gpgcheck=1
gpgkey=https://pkgs.k8s.io/core:/stable:/v1.31/rpm/repodata/repomd.xml.key
EOF

Fedora installation of kubernetes

sudo dnf install kubernetes-kubeadm kubernetes-node kubernetes-client

Open firewall ports 6443, 10250

sudo systemctl enable kubelet.service
sudo systemctl enable containerd
sudo systemctl start containerd
sudo swapoff -a
sudo dnf install iptables iproute-tc

sudo cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
overlay
br_netfilter
EOF


sudo modprobe overlay
sudo modprobe br_netfilter

# sysctl params required by setup, params persist across reboots
sudo cat <<EOF | sudo tee /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-iptables  = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.ipv4.ip_forward                 = 1
EOF


sudo sysctl --system

sudo systemctl enable --now kubelet

sudo kubeadm init

Accessing the cluster as normal user