Edit Vagrantfile
VBoxManage list bridgedifs
Edit vagrantfile add public interface
# -*- mode: ruby -*-
# vi: set ft=ruby :
# All Vagrant configuration is done below. The "2" in Vagrant.configure
# configures the configuration version (we support older styles for
# backwards compatibility). Please don't change it unless you know what
# you're doing.
$base=<<-SCRIPT
echo ">>> Run Kubernetes Base script"
echo "-----------------------------------------------"
echo "\nStep-1 Enable ssh password authentication"
echo $(whoami)
sed -i 's/PasswordAuthentication no/PasswordAuthentication yes/g' /etc/ssh/sshd_config
systemctl restart sshd.service
echo "\nStep-2 Enable firewall"
sudo dnf update -y
sudo dnf install -y firewalld socat
sudo systemctl enable --now firewalld
# Step-3 Disable SELinux
echo "\nStep-3 Disable SELinux"
sudo setenforce 0
sudo sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config
# Step-4 manage kernel module
echo "\nStep-4 manage kernel module"
cat <<EOF | sudo tee /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF
sudo "show sysctl -p"
sudo sysctl -p
sudo sysctl --system
# Load kernel module
cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
overlay
br_netfilter
ip_vs
ip_vs_rr
ip_vs_wrr
ip_vs_sh
EOF
sudo modprobe br_netfilter
sudo modprobe ip_vs
sudo modprobe ip_vs_rr
sudo modprobe ip_vs_wrr
sudo modprobe ip_vs_sh
sudo modprobe overlay
# Step-5: Disable swap permanently
echo "\nStep-5: Disable swap permanently"
sudo swapoff -a
sudo sed -e '/swap/s/^/#/g' -i /etc/fstab
# Step-6: Enable Enable firewall port
echo "\nStep-6: Enable Enable firewall port"
sudo firewall-cmd --zone=public --permanent --add-port=8001/tcp
sudo firewall-cmd --zone=public --permanent --add-port=443/tcp
sudo firewall-cmd --zone=public --permanent --add-port=6443/tcp
sudo firewall-cmd --zone=public --permanent --add-port=2379-2380/tcp
sudo firewall-cmd --zone=public --permanent --add-port=10250/tcp
sudo firewall-cmd --zone=public --permanent --add-port=10251/tcp
sudo firewall-cmd --zone=public --permanent --add-port=10252/tcp
sudo firewall-cmd --zone=public --permanent --add-port=10255/tcp
sudo firewall-cmd --zone=public --permanent --add-port=5473/tcp
sudo firewall-cmd --permanent --add-port 10250/tcp --add-port 30000-32767/tcp
# Flannel port
sudo firewall-cmd --permanent --add-port=8472/udp
# Etcd port
sudo firewall-cmd --permanent --add-port=2379-2380/tcp
sudo firewall-cmd --reload
# Step-7: Enable Hostname
echo "Step7 Enable Hostname"
cat <<EOF | sudo tee /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
127.0.0.1 centos9s.localdomain
192.168.35.10 k8s-master-01 k8s-master-01
192.168.35.21 k8s-node-01 k8s-node-01
192.168.35.22 k8s-node-02 k8s-node-02
192.168.35.23 k8s-node-03 k8s-node-03
EOF
SCRIPT
$node_crio=<<-SCRIPT
echo ">>> Run Kubernetes node script"
echo "-----------------------------------------------"
echo "\nStep1 Install crio engine"
# Install crio engine
cat <<EOF | sudo tee /etc/yum.repos.d/crio.repo
[cri-o]
name=CRI-O
baseurl=https://pkgs.k8s.io/addons:/cri-o:/prerelease:/main/rpm/
enabled=1
gpgcheck=1
gpgkey=https://pkgs.k8s.io/addons:/cri-o:/prerelease:/main/rpm/repodata/repomd.xml.key
EOF
sudo dnf install -y cri-o
sudo systemctl enable crio --now
sudo systemctl status crio
sudo journalctl -u crio
# Install kubenetest
echo "\nStep2 Install kubenetest"
cat <<EOF | sudo tee /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://pkgs.k8s.io/core:/stable:/v1.28/rpm/
enabled=1
gpgcheck=1
gpgkey=https://pkgs.k8s.io/core:/stable:/v1.28/rpm/repodata/repomd.xml.key
exclude=kubelet kubeadm kubectl cri-tools kubernetes-cni
EOF
sudo dnf install -y kubelet kubeadm kubectl --disableexcludes=kubernetes
sudo systemctl enable --now kubelet
echo "\nRun command: sudo systemctl status kubelet"
sudo systemctl status kubelet
# Enable Bash completion for kubernetes command
source <(kubectl completion bash)
sudo kubectl completion bash | sudo tee /etc/bash_completion.d/kubectl
SCRIPT
$node_containerd=<<-SCRIPT
echo ">>> Run Kubernetes node script"
echo "-----------------------------------------------"
echo "\nStep1 Install containerd engine"
# Install docker engine
sudo dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
sudo dnf install -y docker-ce docker-ce-cli containerd.io
sudo systemctl enable --now docker
sudo usermod -aG docker vagrant
# install containerd daemon
sudo dnf install -y containerd.io
sudo systemctl enable --now containerd
# Install kubenetest
echo "\nStep2 Install kubenetest"
cat <<EOF | sudo tee /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://pkgs.k8s.io/core:/stable:/v1.28/rpm/
enabled=1
gpgcheck=1
gpgkey=https://pkgs.k8s.io/core:/stable:/v1.28/rpm/repodata/repomd.xml.key
exclude=kubelet kubeadm kubectl cri-tools kubernetes-cni
EOF
sudo dnf install -y kubelet kubeadm kubectl --disableexcludes=kubernetes
sudo systemctl enable --now kubelet
echo "\nRun command: sudo systemctl status kubelet"
sudo systemctl status kubelet
source <(kubectl completion bash)
sudo kubectl completion bash | sudo tee /etc/bash_completion.d/kubectl
echo "\nStep3 Config containerd with systemdCroup"
sudo mv /etc/containerd/config.toml /etc/containerd/config.toml.orgi
sudo containerd config default | sudo tee /etc/containerd/config.toml
sudo sed -i 's/SystemdCgroup = false/SystemdCgroup = true/g' /etc/containerd/config.toml
sudo systemctl restart containerd
sudo systemctl status containerd.service
echo "\mStep4 Test pull and run image"
sudo ctr image pull docker.io/library/hello-world:latest
sudo ctr run --rm docker.io/library/hello-world:latest test
SCRIPT
Vagrant.configure("2") do |config|
# The most common configuration options are documented and commented below.
# For a complete reference, please see the online documentation at
# https://docs.vagrantup.com.
config.vm.box = "generic/centos9s"
config.vm.define "k8s-master-01" do |control|
control.vm.hostname = "k8s-master-01"
control.vm.network "public_network", bridge: "Intel(R) Wi-Fi 6 AX201 160MHz"
control.vm.network "private_network", ip: "192.168.35.10"
control.vm.provider "virtualbox" do |vb|
vb.memory = "4096"
vb.cpus = 4
end
control.vm.provision "shell", inline: $base
control.vm.provision "shell", inline: $node_containerd
end
config.vm.define "k8s-node-01" do |node1|
node1.vm.hostname = "k8s-node-01"
node1.vm.network "public_network", bridge: "Intel(R) Wi-Fi 6 AX201 160MHz"
node1.vm.network "private_network", ip: "192.168.35.21"
node1.vm.provider "virtualbox" do |vb|
vb.memory = "2048"
vb.cpus = 2
end
node1.vm.provision "shell", inline: $base
node1.vm.provision "shell", inline: $node_containerd
end
config.vm.define "k8s-node-02" do |node2|
node2.vm.hostname = "k8s-node-02"
node2.vm.network "public_network", bridge: "Intel(R) Wi-Fi 6 AX201 160MHz"
node2.vm.network "private_network", ip: "192.168.35.22"
node2.vm.provider "virtualbox" do |vb|
vb.memory = "2048"
vb.cpus = 2
end
node2.vm.provision "shell", inline: $base
node2.vm.provision "shell", inline: $node_containerd
end
config.vm.define "k8s-node-03" do |node3|
node3.vm.hostname = "k8s-node-03"
node3.vm.network "public_network", bridge: "Intel(R) Wi-Fi 6 AX201 160MHz"
node3.vm.network "private_network", ip: "192.168.35.23"
node3.vm.provider "virtualbox" do |vb|
vb.memory = "2048"
vb.cpus = 2
end
node3.vm.provision "shell", inline: $base
node3.vm.provision "shell", inline: $node_containerd
end
#config.vm.synced_folder ".", "/vagrant"
end
Run Vagrant reload:
> vagrant reload
Vagant ssh to node
> vagrant ssh k8s_master_01
Check ip
$ ip a
