193 lines
8.4 KiB
Bash
193 lines
8.4 KiB
Bash
#!/bin/bash
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# Description: This simple Scripts creates an Virtualmachine on Proxmox, with the Qemu-Cli.
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# Usage: Just Execute the script, it's a guided Script (chmod +x CreateCloudInitVM.sh && ./ CreateCloudInitVM.sh)
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#
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# Creator: Janic Joël Voser, Mettmenstetten - CH
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# Date of Creation: 03.12.2021
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#
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# Active Maintainer: Janic Joël Voser
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# Date of Last Maintenance: 03.12.2021
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#
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# Current State: Development
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# Version: 0.5.0
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# Version History:
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# v0.0.1 - Basic Script Structure
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# v0.1.0 - Get the User input
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# v0.2.0 - Gather Virtual Machine ID
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# v0.3.0 - Get & Select the Image of the Virtualmachine
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# v0.4.0 - Create the VM & Gather additional Information
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# v0.5.0 - Add proper Comments
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# Planned Features:
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# - [X] Guided VM Creation
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# - [X] Image Download URL
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# - [X] Image Selection
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# - [X] VM-ID check
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# - [X] Choose Memorysize
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# - [X] Choose CPU cores
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# - [X] Choose Network
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# - [X] IMG & ISO & qcow2 support
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# Global Constants
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IMAGE_STORAGE_LOCATION="/var/lib/vz/template/iso/" # Enter here the location of your iso-Templates - This is not adjustable while running the script
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DEFAULT_VM_STORAGE="tank-vms" # Enter here the default Storage Location, so you can Skip it by pressing enter
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DEFAULT_DOWNLOAD_IMG_yn="n" # Set the default value for the "Download new Image"-Questing
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DEFAULT_VM_NAME="cloudinit-vm" # Set the default value for the Virtual Machine Name
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DEFAULT_VM_RAM="2048" # Set the default value of Memory for the Virtual Machine
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DEFAULT_VM_CORES="2" # Set the default amount of cpu-cores for the Virtual Machine
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DEFAULT_VM_NET="vmbr0" # Set the default network interface for the Virtual Machine
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# Functions
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## Gather the ID of the Virtual machine
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function gather_vmid {
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echo "Already used IDs"
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qm list | tr -s ' ' | cut -d ' ' -f 2,3 # Get the already used VMIDs & VM-Name
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echo "Enter the new ID of your Virtual Machine (It must be unused)"
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read VM_ID # Get the User Input(This VMID will be used for the new created VM)
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readarray -t VMID_ARRAY < <(qm list | tail -n +2 | tr -s ' ' | cut -d ' ' -f 2)
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if [[ "${VMID_ARRAY[*]}" =~ "$VM_ID" ]]; then # Check if Virtual Machine ID is alredy in use
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echo "Your selected Virtual Machine ID is already in use, choose an other ID"
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gather_vmid
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fi
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}
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## Download a new Image in to the Image Storage
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function get_img {
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echo "Do you wish to download an Image? (yes/no)"
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read DOWNLOAD_IMG_yn
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case "${DOWNLOAD_IMG_yn:=DEFAULT_DOWNLOAD_IMG_yn}" in # Case Statement to switch based on the User Input
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yes|YES|Yes|y|Y) # The Yes case enables the possibility to download an Image
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echo "Please enter the URL of your Image"
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read DOWNLOAD_IMG_URL
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wget "$DOWNLOAD_IMG_URL" --directory-prefix="$IMAGE_STORAGE_LOCATION" # Download the Image in to the default Image-Storage
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if [ $? -eq 0 ]; then # Check if last command (Download) was successful
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echo "Download was Successful"
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else
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echo "Download failed"
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echo "Retry or Downloadfile manually"
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get_img
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fi
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;;
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no|NO|No|n|N) # The No Case skips the Image Download step
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echo "Carrying on without a new Image"
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;;
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*)
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echo "Invalid Argument: Please type \"yes\" or \"no\""
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get_img # Question again if the Answer was not an possible Option
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;;
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esac
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}
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## Select an Image
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function sel_img {
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echo "The following list represents all Images which exist on the Hoststorage"
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ls $IMAGE_STORAGE_LOCATION -l | tr -s ' ' | cut -d' ' -f 6-9 # List all files in the Image Location and their Age of Creation
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readarray -t OS_IMG_ARRAY < <(ls $IMAGE_STORAGE_LOCATION -l | tr -s ' ' | cut -d' ' -f 9) # Create an Array of all Images
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echo "Please enter the correct Image Name(shown above)"
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read OS_IMG_NAME
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if ! [[ "${OS_IMG_ARRAY[*]}" =~ "$OS_IMG_NAME" ]]; then # Check if Selected Image is in the Array, else go back to the selection
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echo "Your selected Image does not exist"
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echo "Maybe it was a Typo, Please check:"
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echo " - Upper/Lowercase writing"
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echo " - Fileextension(needs to be appended)"
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echo "ProTip: Copy & Paste"
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sleep 3
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sel_img
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fi
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}
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## Get the prepared Cloud-Init Image
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function gather_img {
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get_img
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sel_img
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}
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## Gather Virtualmachine Network
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function gather_vm_net {
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ip -o link show | awk -F': ' '{print $2}' | grep vmbr # Get all the Virtual Bridge Interfaces of the Hostsystem
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echo "Enter one of the above shown Network-Interfaces to add to your VM"
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read VM_NET
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readarray -t VM_NET_ARRAY < <(ip -o link show | awk -F': ' '{print $2}' | grep vmbr) # Create an array of all Virtual Bridge Interfaces of the Hostsystem
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if ! [[ "${VM_NET_ARRAY[*]}" =~ "$VM_NET" ]]; then # Check if Selected Network is an existing network else go back to the Selection
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echo "Your selected Network does not exist"
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echo "Maybe it was a Typo, Please check:"
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echo " - Upper/Lowercase writing"
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echo "ProTip: Copy & Paste"
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sleep 3
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gather_vm_net
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fi
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}
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## Gather hardware
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function gather_hardware {
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echo "Enter the amount of memory in MegaBytes"
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echo "Example for 2GB = \"2048\""
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read VM_RAM
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echo "Enter the amount of Cpu-Cores you want to give to the Virtual machine"
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read VM_CORES
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gather_vm_net
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}
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## Gather all aditional Data
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function gather_additional {
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gather_vmid
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echo "Enter the name of the new Virtualmachine"
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read VM_NAME
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}
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## Gather VM_Storage
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function gather_vm_storage {
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echo "Please enter the Virtual Machine Storage Pool:[$DEFAULT_VM_STORAGE]"
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read VM_STORAGE
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VM_STORAGE=${VM_STORAGE:=$DEFAULT_VM_STORAGE} # Get the Storage of the VM, if nothing is set just use the Default
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}
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## Get all the Variables from the User
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function get_user_input {
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gather_img
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gather_hardware
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gather_vm_storage
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gather_additional
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}
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# Import the Cloudinit image and append it to the Virtual Machine
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function vm_import_cloudinit_img {
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IMG_TYPE=$(echo "$OS_IMG_NAME" | rev | cut -d "." -f 1 | rev) # Get the Image Fileending for further operations
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if [ $IMG_TYPE == "iso" ] || [ $IMG_TYPE == "img" ];then # If the Image Fileending is "iso" or img" do the following
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qm importdisk "$VM_ID" "$IMAGE_STORAGE_LOCATION$OS_IMG_NAME" "$VM_STORAGE" -format qcow2 # Convert the Image to qcow2 format and write it to the VM-Storage
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if ! [ $? -eq 0 ];then
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echo "It was not possible to convert a new Image with your values"
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echo "Read the error message above"
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exit
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fi
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elif [ $IMG_TYPE == "qcow2" ];then # If the Image Fileending is "qcow2" do the following
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qm importdisk "$VM_ID" "$IMAGE_STORAGE_LOCATION$OS_IMG_NAME" "$VM_STORAGE" #import a copy of the Image to the VM, safe the copy in the set Storagepath
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if ! [ $? -eq 0 ];then
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echo "It was not possible to convert a new Image with your values"
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echo "Read the error message above"
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exit
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fi
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else
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echo "Your OS-Image does not have a fileending which is supported by this scirpt"
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echo "only iso & img are Supported"
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exit
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fi
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}
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# Create the Virtual Machine with Set-Values
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function create_qm_vm {
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qm create "$VM_ID" --name "${VM_NAME:=$DEFAULT_VM_NAME}" --memory "${VM_RAM:=$DEFAULT_VM_RAM}" --cores "${VM_CORES:=$DEFAULT_VM_CORES}" --net0 virtio,bridge="${VM_NET:=$DEFAULT_VM_NET}" # Create the Virtualmachine with the set hardware specification
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if ! [ $? -eq 0 ];then
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echo "It was not possible to create a Virtual machine with your values"
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echo "Read the error message above"
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exit
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fi
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vm_import_cloudinit_img # Import the Image to the Virtual Machine
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qm set $VM_ID --scsihw virtio-scsi-pci --scsi0 $VM_STORAGE:vm-$VM_ID-disk-0 #Add the Image to the Virtual Machine
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if ! [ $? -eq 0 ];then
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echo "It was not possible to add the custom Image to your Virtual machine"
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echo "Read the error message above"
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exit
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fi
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qm set $VM_ID --ide2 $VM_STORAGE:cloudinit --boot c --bootdisk scsi0 --serial0 socket --vga serial0 #Add the Cloud-Initdrive & set the Bootdrive & Add a serial console(is needed for cloud-init)
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if ! [ $? -eq 0 ];then
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echo "It was not possible to add an cloudinit drive to your Virtual machine"
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echo "Read the error message above"
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exit
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fi
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}
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# Main Script
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get_user_input
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create_qm_vm |