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v0.5.0 - Add proper Comments

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Janic Voser 2021-12-03 18:05:12 +01:00
parent 67117a23b0
commit d41475bb7e
1 changed files with 35 additions and 30 deletions
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65
Scripts/CreateCloudInitVM.sh
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@ -9,13 +9,14 @@
# Date of Last Maintenance: 03.12.2021 # Date of Last Maintenance: 03.12.2021
# #
# Current State: Development # Current State: Development
# Version: 0.4.0 # Version: 0.5.0
# Version History: # Version History:
# v0.0.1 - Basic Script Structure # v0.0.1 - Basic Script Structure
# v0.1.0 - Get the User input # v0.1.0 - Get the User input
# v0.2.0 - Gather Virtual Machine ID # v0.2.0 - Gather Virtual Machine ID
# v0.3.0 - Get & Select the Image of the Virtualmachine # v0.3.0 - Get & Select the Image of the Virtualmachine
# v0.4.0 - Create the VM & Gather additional Information # v0.4.0 - Create the VM & Gather additional Information
# v0.5.0 - Add proper Comments
# Planned Features: # Planned Features:
@ -28,11 +29,14 @@
# - [X] Choose Network # - [X] Choose Network
# - [X] IMG & ISO & qcow2 support # - [X] IMG & ISO & qcow2 support
# Global Conigurable Variables
# Global Constants # Global Constants
IMAGE_STORAGE_LOCATION="/var/lib/vz/template/iso/" IMAGE_STORAGE_LOCATION="/var/lib/vz/template/iso/" # Enter here the location of your iso-Templates - This is not adjustable while running the script
DEFAULT_VM_STORAGE="tank-vms" DEFAULT_VM_STORAGE="tank-vms" # Enter here the default Storage Location, so you can Skip it by pressing enter
DEFAULT_DOWNLOAD_IMG_yn="n" # Set the default value for the "Download new Image"-Questing
DEFAULT_VM_NAME="cloudinit-vm" # Set the default value for the Virtual Machine Name
DEFAULT_VM_RAM="2048" # Set the default value of Memory for the Virtual Machine
DEFAULT_VM_CORES="2" # Set the default amount of cpu-cores for the Virtual Machine
DEFAULT_VM_NET="vmbr0" # Set the default network interface for the Virtual Machine
# Functions # Functions
## Gather the ID of the Virtual machine ## Gather the ID of the Virtual machine
@ -41,9 +45,8 @@ function gather_vmid {
qm list | tr -s ' ' | cut -d ' ' -f 2,3 # Get the already used VMIDs & VM-Name qm list | tr -s ' ' | cut -d ' ' -f 2,3 # Get the already used VMIDs & VM-Name
echo "Enter the new ID of your Virtual Machine (It must be unused)" echo "Enter the new ID of your Virtual Machine (It must be unused)"
read VM_ID # Get the User Input(This VMID will be used for the new created VM) read VM_ID # Get the User Input(This VMID will be used for the new created VM)
i=0
readarray -t VMID_ARRAY < <(qm list | tail -n +2 | tr -s ' ' | cut -d ' ' -f 2) readarray -t VMID_ARRAY < <(qm list | tail -n +2 | tr -s ' ' | cut -d ' ' -f 2)
if [[ "${VMID_ARRAY[*]}" =~ "$VM_ID" ]]; then if [[ "${VMID_ARRAY[*]}" =~ "$VM_ID" ]]; then # Check if Virtual Machine ID is alredy in use
echo "Your selected Virtual Machine ID is already in use, choose an other ID" echo "Your selected Virtual Machine ID is already in use, choose an other ID"
gather_vmid gather_vmid
fi fi
@ -52,12 +55,12 @@ function gather_vmid {
function get_img { function get_img {
echo "Do you wish to download an Image? (yes/no)" echo "Do you wish to download an Image? (yes/no)"
read DOWNLOAD_IMG_yn read DOWNLOAD_IMG_yn
case "$DOWNLOAD_IMG_yn" in case "${DOWNLOAD_IMG_yn:=DEFAULT_DOWNLOAD_IMG_yn}" in # Case Statement to switch based on the User Input
yes|YES|Yes|y|Y) yes|YES|Yes|y|Y) # The Yes case enables the possibility to download an Image
echo "Please enter the URL of your Image" echo "Please enter the URL of your Image"
read DOWNLOAD_IMG_URL read DOWNLOAD_IMG_URL
wget "$DOWNLOAD_IMG_URL" --directory-prefix="$IMAGE_STORAGE_LOCATION" wget "$DOWNLOAD_IMG_URL" --directory-prefix="$IMAGE_STORAGE_LOCATION" # Download the Image in to the default Image-Storage
if [ $? -eq 0 ]; then if [ $? -eq 0 ]; then # Check if last command (Download) was successful
echo "Download was Successful" echo "Download was Successful"
else else
echo "Download failed" echo "Download failed"
@ -65,22 +68,23 @@ function get_img {
get_img get_img
fi fi
;; ;;
no|NO|No|n|N) no|NO|No|n|N) # The No Case skips the Image Download step
echo "Carrying on without a new Image" echo "Carrying on without a new Image"
;; ;;
*) *)
echo "Invalid Argument: Please type \"yes\" or \"no\"" echo "Invalid Argument: Please type \"yes\" or \"no\""
get_img # Question again if the Answer was not an possible Option
;; ;;
esac esac
} }
## Select an Image ## Select an Image
function sel_img { function sel_img {
echo "The following list represents all Images which exist on the Hoststorage" echo "The following list represents all Images which exist on the Hoststorage"
ls $IMAGE_STORAGE_LOCATION -l | tr -s ' ' | cut -d' ' -f 6-9 ls $IMAGE_STORAGE_LOCATION -l | tr -s ' ' | cut -d' ' -f 6-9 # List all files in the Image Location and their Age of Creation
readarray -t OS_IMG_ARRAY < <(ls $IMAGE_STORAGE_LOCATION -l | tr -s ' ' | cut -d' ' -f 9) readarray -t OS_IMG_ARRAY < <(ls $IMAGE_STORAGE_LOCATION -l | tr -s ' ' | cut -d' ' -f 9) # Create an Array of all Images
echo "Please enter the correct Image Name(shown above)" echo "Please enter the correct Image Name(shown above)"
read OS_IMG_NAME read OS_IMG_NAME
if ! [[ "${OS_IMG_ARRAY[*]}" =~ "$OS_IMG_NAME" ]]; then if ! [[ "${OS_IMG_ARRAY[*]}" =~ "$OS_IMG_NAME" ]]; then # Check if Selected Image is in the Array, else go back to the selection
echo "Your selected Image does not exist" echo "Your selected Image does not exist"
echo "Maybe it was a Typo, Please check:" echo "Maybe it was a Typo, Please check:"
echo " - Upper/Lowercase writing" echo " - Upper/Lowercase writing"
@ -97,11 +101,11 @@ function gather_img {
} }
## Gather Virtualmachine Network ## Gather Virtualmachine Network
function gather_vm_net { function gather_vm_net {
ip -o link show | awk -F': ' '{print $2}' | grep vmbr ip -o link show | awk -F': ' '{print $2}' | grep vmbr # Get all the Virtual Bridge Interfaces of the Hostsystem
echo "Enter one of the above shown Network-Interfaces to add to your VM" echo "Enter one of the above shown Network-Interfaces to add to your VM"
read VM_NET read VM_NET
readarray -t VM_NET_ARRAY < <(ip -o link show | awk -F': ' '{print $2}' | grep vmbr) readarray -t VM_NET_ARRAY < <(ip -o link show | awk -F': ' '{print $2}' | grep vmbr) # Create an array of all Virtual Bridge Interfaces of the Hostsystem
if ! [[ "${VM_NET_ARRAY[*]}" =~ "$VM_NET" ]]; then if ! [[ "${VM_NET_ARRAY[*]}" =~ "$VM_NET" ]]; then # Check if Selected Network is an existing network else go back to the Selection
echo "Your selected Network does not exist" echo "Your selected Network does not exist"
echo "Maybe it was a Typo, Please check:" echo "Maybe it was a Typo, Please check:"
echo " - Upper/Lowercase writing" echo " - Upper/Lowercase writing"
@ -110,7 +114,6 @@ function gather_vm_net {
gather_vm_net gather_vm_net
fi fi
} }
## Gather hardware ## Gather hardware
function gather_hardware { function gather_hardware {
echo "Enter the amount of memory in MegaBytes" echo "Enter the amount of memory in MegaBytes"
@ -131,7 +134,7 @@ function gather_additional {
function gather_vm_storage { function gather_vm_storage {
echo "Please enter the Virtual Machine Storage Pool:[$DEFAULT_VM_STORAGE]" echo "Please enter the Virtual Machine Storage Pool:[$DEFAULT_VM_STORAGE]"
read VM_STORAGE read VM_STORAGE
VM_STORAGE=${VM_STORAGE:=$DEFAULT_VM_STORAGE} VM_STORAGE=${VM_STORAGE:=$DEFAULT_VM_STORAGE} # Get the Storage of the VM, if nothing is set just use the Default
} }
## Get all the Variables from the User ## Get all the Variables from the User
function get_user_input { function get_user_input {
@ -140,18 +143,19 @@ function get_user_input {
gather_vm_storage gather_vm_storage
gather_additional gather_additional
} }
# Import the Cloudinit image and append it to the Virtual Machine
function vm_import_cloudinit_img { function vm_import_cloudinit_img {
IMG_TYPE=$(echo "$OS_IMG_NAME" | rev | cut -d "." -f 1 | rev) IMG_TYPE=$(echo "$OS_IMG_NAME" | rev | cut -d "." -f 1 | rev) # Get the Image Fileending for further operations
if [ $IMG_TYPE == "iso" ] || [ $IMG_TYPE == "img" ];then if [ $IMG_TYPE == "iso" ] || [ $IMG_TYPE == "img" ];then # If the Image Fileending is "iso" or img" do the following
qm importdisk "$VM_ID" "$IMAGE_STORAGE_LOCATION$OS_IMG_NAME" "$VM_STORAGE" -format qcow2 qm importdisk "$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
if ! [ $? -eq 0 ];then if ! [ $? -eq 0 ];then
echo "It was not possible to convert a new Image with your values" echo "It was not possible to convert a new Image with your values"
echo "Read the error message above" echo "Read the error message above"
exit exit
fi fi
elif [ $IMG_TYPE == "qcow2" ];then elif [ $IMG_TYPE == "qcow2" ];then # If the Image Fileending is "qcow2" do the following
qm importdisk "$VM_ID" "$IMAGE_STORAGE_LOCATION$OS_IMG_NAME" "$VM_STORAGE" qm importdisk "$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
if ! [ $? -eq 0 ];then if ! [ $? -eq 0 ];then
echo "It was not possible to convert a new Image with your values" echo "It was not possible to convert a new Image with your values"
echo "Read the error message above" echo "Read the error message above"
exit exit
@ -162,21 +166,22 @@ function vm_import_cloudinit_img {
exit exit
fi fi
} }
# Create the Virtual Machine with Set-Values
function create_qm_vm { function create_qm_vm {
qm create "$VM_ID" --name "$VM_NAME" --memory "$VM_RAM" --cores "$VM_CORES" --net0 virtio,bridge="$VM_NET" 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
if ! [ $? -eq 0 ];then if ! [ $? -eq 0 ];then
echo "It was not possible to create a Virtual machine with your values" echo "It was not possible to create a Virtual machine with your values"
echo "Read the error message above" echo "Read the error message above"
exit exit
fi fi
vm_import_cloudinit_img vm_import_cloudinit_img # Import the Image to the Virtual Machine
qm set $VM_ID --scsihw virtio-scsi-pci --scsi0 $VM_STORAGE:vm-$VM_ID-disk-0 qm set $VM_ID --scsihw virtio-scsi-pci --scsi0 $VM_STORAGE:vm-$VM_ID-disk-0 #Add the Image to the Virtual Machine
if ! [ $? -eq 0 ];then if ! [ $? -eq 0 ];then
echo "It was not possible to add the custom Image to your Virtual machine" echo "It was not possible to add the custom Image to your Virtual machine"
echo "Read the error message above" echo "Read the error message above"
exit exit
fi fi
qm set $VM_ID --ide2 $VM_STORAGE:cloudinit --boot c --bootdisk scsi0 --serial0 socket --vga serial0 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)
if ! [ $? -eq 0 ];then if ! [ $? -eq 0 ];then
echo "It was not possible to add an cloudinit drive to your Virtual machine" echo "It was not possible to add an cloudinit drive to your Virtual machine"
echo "Read the error message above" echo "Read the error message above"