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Initial version for k8s from scratch with packer and vagrant.

master
End of Line 2024-07-01 18:28:50 +02:00
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output-vagrant
*~
.git
.vagrant

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{
"provisioners": [
{
"type": "shell",
"execute_command": "echo 'vagrant' | {{.Vars}} sudo -S -E bash '{{.Path}}'",
"script": "scripts/setup.sh"
}
],
"builders": [
{
"communicator": "ssh",
"source_path": "debian/bullseye64",
"provider": "virtualbox",
"add_force": true,
"type": "vagrant"
}
]
}

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#!/bin/sh
apt-get update
apt-get install -y vim
cat << EOF | tee /etc/modules-load.d/k8s.conf
overlay
br_netfilter
EOF
modprobe overlay
modprobe br_netfilter
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
sysctl --system
cd /tmp
test -f containerd-1.7.11-linux-amd64.tar.gz || wget https://github.com/containerd/containerd/releases/download/v1.7.11/containerd-1.7.11-linux-amd64.tar.gz
tar Cxzvf /usr/local containerd-1.7.11-linux-amd64.tar.gz
mkdir -p /etc/containerd
containerd config default > config.toml
cp config.toml /etc/containerd
test -f containerd.service || wget https://raw.githubusercontent.com/containerd/containerd/main/containerd.service
cp containerd.service /etc/systemd/system/
systemctl daemon-reload
systemctl enable --now containerd
test -f runc.amd64 || wget https://github.com/opencontainers/runc/releases/download/v1.1.10/runc.amd64
install -m 755 runc.amd64 /usr/local/sbin/runc
test -f cni-plugins-linux-amd64-v1.4.0.tgz || wget https://github.com/containernetworking/plugins/releases/download/v1.4.0/cni-plugins-linux-amd64-v1.4.0.tgz
mkdir -p /opt/cni/bin
tar Cxzvf /opt/cni/bin cni-plugins-linux-amd64-v1.4.0.tgz
sed -i.bak "s/SystemdCgroup.*$/SystemdCgroup = true/g" /etc/containerd/config.toml
systemctl restart containerd
apt-get update
apt-get install -y apt-transport-https ca-certificates curl gpg
mkdir -p /etc/apt/keyrings
test -f /etc/apt/keyrings/kubernetes-apt-keyring.gpg || ( curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.28/deb/Release.key | gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg )
echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.28/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
apt-get update
apt-get install -y kubelet=1.28.4-1.1 kubeadm=1.28.4-1.1 kubectl=1.28.4-1.1
swapoff -a
sed -i.bak -E "s/^.*swap.*//g" /etc/fstab

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# -*- 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.
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.
# Every Vagrant development environment requires a box. You can search for
# boxes at https://vagrantcloud.com/search.
config.vm.box = "k8s-playground"
config.vm.hostname = "master.local"
config.vm.network :private_network, ip: "10.1.0.2"
# Disable automatic box update checking. If you disable this, then
# boxes will only be checked for updates when the user runs
# `vagrant box outdated`. This is not recommended.
# config.vm.box_check_update = false
# Create a forwarded port mapping which allows access to a specific port
# within the machine from a port on the host machine. In the example below,
# accessing "localhost:8080" will access port 80 on the guest machine.
# NOTE: This will enable public access to the opened port
# config.vm.network "forwarded_port", guest: 80, host: 8080
# Create a forwarded port mapping which allows access to a specific port
# within the machine from a port on the host machine and only allow access
# via 127.0.0.1 to disable public access
# config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"
# Create a private network, which allows host-only access to the machine
# using a specific IP.
# config.vm.network "private_network", ip: "192.168.33.10"
# Create a public network, which generally matched to bridged network.
# Bridged networks make the machine appear as another physical device on
# your network.
# config.vm.network "public_network"
# Share an additional folder to the guest VM. The first argument is
# the path on the host to the actual folder. The second argument is
# the path on the guest to mount the folder. And the optional third
# argument is a set of non-required options.
# config.vm.synced_folder "../data", "/vagrant_data"
# Disable the default share of the current code directory. Doing this
# provides improved isolation between the vagrant box and your host
# by making sure your Vagrantfile isn't accessible to the vagrant box.
# If you use this you may want to enable additional shared subfolders as
# shown above.
# config.vm.synced_folder ".", "/vagrant", disabled: true
# Provider-specific configuration so you can fine-tune various
# backing providers for Vagrant. These expose provider-specific options.
# Example for VirtualBox:
#
config.vm.provider "virtualbox" do |vb|
# Display the VirtualBox GUI when booting the machine
vb.gui = false
# Customize the amount of memory on the VM:
vb.memory = "2048"
end
#
# View the documentation for the provider you are using for more
# information on available options.
# Enable provisioning with a shell script. Additional provisioners such as
# Ansible, Chef, Docker, Puppet and Salt are also available. Please see the
# documentation for more information about their specific syntax and use.
config.vm.provision "shell", inline: <<-SHELL
apt-get update
grep "master.local" /etc/hosts || cat /vagrant/hosts.txt >> /etc/hosts
test -f /etc/kubernetes/manifests/kube-scheduler.yaml || \\
( kubeadm init --control-plane-endpoint master.local:6443 --pod-network-cidr 10.2.0.0/22 | tee init.log )
export KUBECONFIG=/etc/kubernetes/admin.conf
test -f tigera-operator.yaml || ( wget https://raw.githubusercontent.com/projectcalico/calico/v3.27.0/manifests/tigera-operator.yaml \\
&& kubectl create -f tigera-operator.yaml )
test -f custom-resources.yaml || wget https://raw.githubusercontent.com/projectcalico/calico/v3.27.0/manifests/custom-resources.yaml
sed -i.bak -E "s#cidr.*#cidr: 10\.2\.0\.0/22#g" custom-resources.yaml
kubectl apply -f custom-resources.yaml
cat init.log
SHELL
end

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10.1.0.2 master.local
10.1.0.3 worker1.local
10.1.0.4 worker2.local
10.1.0.5 worker3.local

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# -*- 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.
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.
# Every Vagrant development environment requires a box. You can search for
# boxes at https://vagrantcloud.com/search.
config.vm.box = "k8s-playground"
config.vm.hostname = "worker.local"
config.vm.network :private_network, ip: "10.1.0.3"
# Disable automatic box update checking. If you disable this, then
# boxes will only be checked for updates when the user runs
# `vagrant box outdated`. This is not recommended.
# config.vm.box_check_update = false
# Create a forwarded port mapping which allows access to a specific port
# within the machine from a port on the host machine. In the example below,
# accessing "localhost:8080" will access port 80 on the guest machine.
# NOTE: This will enable public access to the opened port
# config.vm.network "forwarded_port", guest: 80, host: 8080
# Create a forwarded port mapping which allows access to a specific port
# within the machine from a port on the host machine and only allow access
# via 127.0.0.1 to disable public access
# config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"
# Create a private network, which allows host-only access to the machine
# using a specific IP.
# config.vm.network "private_network", ip: "192.168.33.10"
# Create a public network, which generally matched to bridged network.
# Bridged networks make the machine appear as another physical device on
# your network.
# config.vm.network "public_network"
# Share an additional folder to the guest VM. The first argument is
# the path on the host to the actual folder. The second argument is
# the path on the guest to mount the folder. And the optional third
# argument is a set of non-required options.
# config.vm.synced_folder "../data", "/vagrant_data"
# Disable the default share of the current code directory. Doing this
# provides improved isolation between the vagrant box and your host
# by making sure your Vagrantfile isn't accessible to the vagrant box.
# If you use this you may want to enable additional shared subfolders as
# shown above.
# config.vm.synced_folder ".", "/vagrant", disabled: true
# Provider-specific configuration so you can fine-tune various
# backing providers for Vagrant. These expose provider-specific options.
# Example for VirtualBox:
#
config.vm.provider "virtualbox" do |vb|
# Display the VirtualBox GUI when booting the machine
vb.gui = false
# Customize the amount of memory on the VM:
vb.memory = "2048"
end
#
# View the documentation for the provider you are using for more
# information on available options.
# Enable provisioning with a shell script. Additional provisioners such as
# Ansible, Chef, Docker, Puppet and Salt are also available. Please see the
# documentation for more information about their specific syntax and use.
config.vm.provision "shell", inline: <<-SHELL
apt-get update
grep "master.local" /etc/hosts || cat /vagrant/hosts.txt >> /etc/hosts
kubeadm join master.local:6443 --token TBD --discovery-token-ca-cert-hash TBD
SHELL
end

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10.1.0.2 master.local
10.1.0.3 worker1.local
10.1.0.4 worker2.local
10.1.0.5 worker3.local