JG-mirror/Kubernetes/Create-VMS/create-vms.sh
2023-11-05 18:39:30 +00:00

301 lines
9 KiB
Bash

#!/bin/bash
# for Debian this must be installed for Longhorn to work
# sudo apt-get install -y open-iscsi
###########################
# DEFAULT VALUES #
###########################
os_options=("Debian" "Ubuntu")
os="Debian"
# Proxmox path to the template folder
template_path="/var/lib/vz/template"
# Proxmox certificate path
cert_path="/root/.ssh"
# Number of VMs to be created
vm_number=3
# The first VM id, smallest id is 100
id=121
# Name prefix of the first VM
name=k3s
drive_name=local-zfs
agent=0 # TODO: Implement User Option for it
disk_size=20G
memory=2048
core=2
# IP for the first VM
ip=192.168.0.21
gateway=192.168.0.1
# ssh certificate name variable
cert_name=id_rsa
# User settings
user=$USER
password=password
ubuntu_url=https://cloud-images.ubuntu.com/lunar/current/lunar-server-cloudimg-amd64.img
ubuntu_filename=lunar-server-cloudimg-amd64.img
debian_url=https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-genericcloud-amd64.qcow2
debian_filename=debian-12-genericcloud-amd64.qcow2
os_url=https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-genericcloud-amd64.qcow2
os_filename=debian-12-genericcloud-amd64.qcow2
##################
# Functions #
##################
function run() {
get_user_variables
print_info # Prints information about what will be created based on defaults/user inputs
setup # Do not worry it asks for confirmation before the setup/installation starts
start_vms # You can choose to start all VMs if you want
#qemu_agent # Not implemented yet, you can choose to add qemu-agent to the installation image
}
function get_user_variables() {
echo -e -n "\e[36mWhich OS cloud image would you like to use?\n\e[0m"
PS3=""
select option in "${os_options[@]}"; do
# Check if the user selected an option
if [[ -n "$option" ]]; then
# Do something with the selected option
case $option in
"Debian") ;;
"Ubuntu") ;;
*)
echo -e "\e[31mInvalid option selected. Exiting...\e[0m"
exit
;;
esac
else
# No option was selected
echo -e "\e[31mNo option was selected. Exiting...\e[0m"
exit
fi
# Set the selected Operating system
os=$option
# Exit the select loop
break
done
echo -e "\e[36mHow many VM do you want to create? \e[0m"
read -e -p "" -i "$vm_number" vm_number
echo -e "\e[36mFirst VM ID? (minimum 100)\e[0m"
read -e -p "" -i $id id
echo -e "\e[36mVM name prefix? \e[0m"
read -e -p "" -i $name name
echo -e "\e[36mIP address? \e[0m"
read -e -p "" -i $ip ip
# Split the IP address into its parts using the '.' character as the delimiter.
ip_address_parts=(${ip//./ })
octet1=${ip_address_parts[0]}
octet2=${ip_address_parts[1]}
octet3=${ip_address_parts[2]}
octet4=${ip_address_parts[3]}
echo -e "\e[36mGateway? \e[0m"
read -e -p "" -i $gateway gateway
echo -e "\e[36mDisk Size? \e[0m"
read -e -p "" -i $disk_size disk_size
echo -e "\e[36mMemory Size? \e[0m"
read -e -p "" -i $memory memory
echo -e "\e[36mNumber of processor cores? \e[0m"
read -e -p "" -i $core core
echo -e "\e[36mUser name? \e[0m"
read -e -p "" -i $user user
echo -e "\e[36mUser password? \e[0m"
read -e -p "" -i $password password
echo -e "\e[36mCertification name? \e[0m"
read -e -p "" -i $cert_name cert_name
echo -e "\e[36mDrive name to store images? \e[0m"
read -e -p "" -i $drive_name drive_name
}
#
function qemu_agent() {
yesno=n
echo -e "\e[36mDo you want to add qemu agent to the VM images? (y/n) \e[0m"
read -e -p "" -i $yesno yesno
case $yesno in
[Yy]*)
# Install qemu agent packages for each VM
echo -e "\e[32mInstalling qemu agent packages.\e[0m"
for ((i = 1; i <= $vm_number; i++)); do
if [[ $i -le 9 ]]; then
idx="0$i"
else
idx=$i
fi
# TODO: ssh into all VMs one by one and intalll the necessary qemu agent packages
done
;;
[Nn]*)
echo -e "\e[33mSkipping qemu agent installation.\e[0m"
;;
*) ;;
esac
}
function print_info() {
echo -e "\e[36m\nThe following Virtual Machines will be created:\e[0m"
for ((i = 1; i <= $vm_number; i++)); do
if [[ $i -le 9 ]]; then
idx="0$i"
else
idx=$i
fi
echo -e "\e[32mVM ID: $(($id + $i - 1)), Name: $name-$idx, IP address: $octet1.$octet2.$octet3.$(($octet4 + $i - 1))\e[0m"
done
echo -e "\e[36m\nCommon VM parameters:\e[0m"
echo -e "\e[32mOS cloud image:\e[0m" "$os"
echo -e "\e[32mPublic Proxmox Certificate:\e[0m" "$cert_path/$cert_name.pub\n"
echo -e "\e[32mGateway:\e[0m" "$gateway"
echo -e "\e[32mDisk size:\e[0m" "$disk_size""B"
echo -e "\e[32mMemory size:\e[0m" "$memory""GB"
echo -e "\e[32mCPU cores:\e[0m" "$core"
echo -e "\e[32mDrive name:\e[0m" "$drive_name"
}
function setup() {
yesno=n
echo -e "\e[36mDo you want to proceed with the setup? (y/n) \e[0m"
read -e -p "" -i $yesno yesno
case $yesno in
[Yy]*)
get_os_image
create_vms
;;
[Nn]*)
echo -e "\e[31mInstallation aborted by user. No changes were made.\e[0m"
exit
;;
*) ;;
esac
}
function start_vms() {
yesno=n
echo -e "\e[36mDo you want to start up the Virtual Machines now? (y/n) \e[0m"
read -e -p "" -i $yesno yesno
case $yesno in
[Yy]*)
# Start VMs
for ((i = 1; i <= $vm_number; i++)); do
if [[ $i -le 9 ]]; then
idx="0$i"
else
idx=$i
fi
echo -e "\e[33mStarting Virtual Machine $idx\e[0m"
qm start $(($id + $i - 1))
done
# Print VMs statuses
for ((i = 1; i <= $vm_number; i++)); do
if [[ $i -le 9 ]]; then
idx="0$i"
else
idx=$i
fi
echo -e "\e[33mVirtual Machine $idx status: \e[0m"
qm status $(($id + $i - 1))
done
;;
[Nn]*)
exit
;;
*) ;;
esac
}
function get_os_image() {
case $os in
"Debian")
os_url=$debian_url
os_filename=$debian_filename
# Check if the directory exists.
if [ ! -d "$template_path/qcow" ]; then
mkdir $template_path/qcow
fi
cd $template_path/qcow
;;
"Ubuntu")
os_url=$ubuntu_url
os_filename=$ubuntu_filename
# Check if the directory exists.
if [ ! -d "$template_path/iso" ]; then
mkdir $template_path/iso
fi
cd $template_path/iso
;;
*)
echo -e "\e[31Invalid option.\e[0m"
;;
esac
# Check if the os image file already exists.
# If not then download it.
if [ ! -f "$os_filename" ]; then
# Download the selected os cloud image
echo -e "\e[33mDownloading $os cloud image ...\e[0m"
wget $os_url
fi
}
# Only runs if you uncomment the function in `create_vms`. Please be careful
function destroy_existing_vms() {
# Stop and destroy Virtual Machine if it already exists
# TODO: Put loop and confirmation before doing anything
qm stop $(($id + $i - 1))
qm destroy $(($id + $i - 1)) --destroy-unreferenced-disks --purge
}
function create_vms() {
for ((i = 1; i <= $vm_number; i++)); do
# Stop and destroy Virtual Machine if it already exists.
# Be really careful with this only uncomment if you know what are you doing. !!!
#
# destroy_existing_vms
#
# #############################
# Create VM from the cloud image
if [[ $i -le 9 ]]; then
idx="0$i"
else
idx=$i
fi
echo -e "\e[33mCreating Virtual Machine: $idx\e[0m"
echo "VM ID: $(($id + $i - 1)), Name: $name-$idx, IP address: $octet1.$octet2.$octet3.$(($octet4 + $i - 1))"
qm create $(($id + $i - 1)) \
--memory $memory \
--core $core \
--numa 1 \
--name $name-$idx \
--net0 virtio,bridge=vmbr0 \
--balloon 0 \
--ipconfig0 gw=$gateway,ip=$octet1.$octet2.$octet3.$(($octet4 + $i - 1))/24 \
--cipassword $password \
--ciuser $user \
--ciupgrade 1 \
--sshkeys $cert_path/$cert_name.pub \
--agent=$agent
qm importdisk $(($id + $i - 1)) $os_filename $drive_name
qm set $(($id + $i - 1)) --scsihw virtio-scsi-pci --scsi0 $drive_name:vm-$(($id + $i - 1))-disk-0
qm disk resize $(($id + $i - 1)) scsi0 $disk_size
qm set $(($id + $i - 1)) --ide2 $drive_name:cloudinit
qm set $(($id + $i - 1)) --boot c --bootdisk scsi0
qm set $(($id + $i - 1)) --serial0 socket --vga serial0
done
}
#########################
# Run the script #
#########################
run