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XenOrchestraInstallerUpdater/xo-vm-import.sh

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#!/bin/bash
#########################################################################
# Title: XenOrchestraInstallerUpdater #
# Author: Roni Väyrynen #
# Repository: https://github.com/ronivay/XenOrchestraInstallerUpdater #
#########################################################################
# image url is static and not configurable by user
IMAGE_URL="https://xo-image.yawn.fi/downloads/image.xva.gz"
function OSCheck {
set -e
if [[ -z $(command -v xe 2>/dev/null) ]]; then
echo "this scripts needs xe command. make sure you're on xenserver/xcp-ng host"
exit 1
fi
echo
echo "Welcome. This script will import a preinstalled Debian 10 VM image which has Xen Orchestra installed using https://github.com/ronivay/XenOrchestraInstallerUpdater"
echo "You need at least 2vCPU/4GB/10GB disk free resources to import VM"
echo
echo "Please report any issues to this github project"
echo
}
function NetworkChoose {
set +e
# get network name/uuid of all available networks configured in the pool
# shellcheck disable=SC1117
IFS=$'\n' read -r -d '' -a networks <<<"$(xe network-list | grep "uuid\|name-label" | cut -d':' -f2 | sed 's/^ //' | paste - -)"
echo
echo "Which network should the VM use?"
echo
local PS3="Pick a number. CTRL+C to exit: "
select network in "${networks[@]}"; do
# get only the network uuid from array which we need later on when adding vif
read -r -a network_split <<<"$network"
networkuuid=${network_split[0]}
# print a menu where to choose network from
case $network in
*)
# save network uuid for later
vifuuid="$networkuuid"
break
;;
esac
done
}
function StorageChoose {
set +e
# get storage name/uuid of all available storages with content-type=user which should match all usable storage repositories
# shellcheck disable=SC1117
IFS=$'\n' read -r -d '' -a storages <<<"$(xe sr-list content-type=user | grep "uuid\|name-description" | cut -d':' -f2 | sed 's/^ //' | paste - -)"
# bail out if no storage repositories are found
if [[ ${#storages[@]} -eq 0 ]]; then
echo "No storage repositories found, can't import VM"
echo "Create SR and try again. More information: https://xcp-ng.org/docs/storage.html"
exit 1
fi
echo "Which storage repository should the VM use?"
echo "default will attempt to use pool default SR"
echo
local PS3="Pick a number. CTRL+C to exit: "
select storage in "${storages[@]}" "default"; do
# get only the storage repository uuid which we need later on when importing image
read -r -a storage_split <<<"$storage"
storageuuid=${storage_split[0]}
# print a menu where to choose storage from
case $storage in
default)
# this value is handled during import if set to default
sruuid=default
break
;;
*)
# save storage uuid for later
sruuid=$storageuuid
break
;;
esac
done
}
function NetworkSettings {
set -e
ipregex="^[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}$"
echo
echo "Set network settings for VM. Leave IP-address as blank to use DHCP"
echo
# read ip address from user input. dhcp is default if left empty
read -r -p "IP address: " ipaddress
ipaddress=${ipaddress:-dhcp}
# if not using dhcp, we need more information
if [[ "$ipaddress" != "dhcp" ]]; then
# get network details from user and prompt again if input doesn't match ip address regex
while ! [[ $ipaddress =~ $ipregex ]]; do
echo "Check IP address format"
read -r -p "IP address: " ipaddress
done
read -r -p "Netmask [255.255.255.0]: " netmask
netmask=${netmask:-255.255.255.0}
while ! [[ $netmask =~ $ipregex ]]; do
echo "Check gateway format"
read -r -p "Netmask [255.255.255.0]: " netmask
netmask=${netmask:-255.255.255.0}
done
read -r -p "Gateway: " gateway
while ! [[ $gateway =~ $ipregex ]] && [[ $gateway != "" ]]; do
echo "Check gateway format"
read -r -p "Gateway: " gateway
done
read -r -p "DNS [8.8.8.8]: " dns
dns=${dns:-8.8.8.8}
while ! [[ $dns =~ $ipregex ]]; do
echo "Check dns format"
read -r -p "DNS [8.8.8.8]: " dns
dns=${dns:-8.8.8.8}
done
fi
}
function VMImport {
set -e
echo
echo "Downloading and importing XVA image..."
echo
# Import image. We pipe through zcat because xe vm-import should transparently decompress gzipped image, but doesn't seem to understand when stream ends when piped through curl/wget whatnot.
# if SR was not defined, we leave that parameter out
if [[ $sruuid == "default" ]]; then
uuid=$(curl "$IMAGE_URL" | zcat | xe vm-import filename=/dev/stdin)
else
uuid=$(curl "$IMAGE_URL" | zcat | xe vm-import filename=/dev/stdin sr-uuid="$sruuid")
fi
# exit if import failed for any reason
# shellcheck disable=SC2181
if [[ $? != "0" ]]; then
echo "Import failed"
exit 1
fi
echo
echo "Import complete"
# no network interface included in the image, we need to create one based on network uuid set by user earlier
xe vif-create network-uuid="$vifuuid" vm-uuid="$uuid" device=0 >/dev/null
# VM startup script reads network details from xenstore and configures interface based on that so set values based on user input earlier
if [[ "$ipaddress" != "dhcp" ]]; then
xe vm-param-set uuid="$uuid" xenstore-data:vm-data/ip="$ipaddress" xenstore-data:vm-data/netmask="$netmask" xenstore-data:vm-data/gateway="$gateway" xenstore-data:vm-data/dns="$dns"
fi
# remove all other boot options except disk to speed startup
xe vm-param-remove uuid="$uuid" param-name=HVM-boot-params param-key=order
xe vm-param-set uuid="$uuid" HVM-boot-params:"order=c"
echo
echo "Starting VM..."
xe vm-start uuid="$uuid"
set +e
# loop max 300 seconds for VM to startup and xen tools to announce ip-address value
count=0
limit=10
ip=$(xe vm-param-get uuid="$uuid" param-name=networks param-key=0/ip 2>/dev/null)
while [[ -z "$ip" ]] && [[ "$count" -lt "$limit" ]]; do
echo "Waiting for VM to start and announce it got IP-address"
sleep 30
ip=$(xe vm-param-get uuid="$uuid" param-name=networks param-key=0/ip 2>/dev/null)
((count++))
done
# network details are needed in xenstore only during first startup so remove them at this point since VM should be running
if [[ "$ipaddress" != "dhcp" ]]; then
xe vm-param-remove param-name=xenstore-data param-key=vm-data/ip uuid="$uuid" 2>/dev/null
xe vm-param-remove param-name=xenstore-data param-key=vm-data/netmask uuid="$uuid" 2>/dev/null
xe vm-param-remove param-name=xenstore-data param-key=vm-data/gateway uuid="$uuid" 2>/dev/null
xe vm-param-remove param-name=xenstore-data param-key=vm-data/dns uuid="$uuid" 2>/dev/null
fi
# if we got ip-address value from VM, we print how to access it...
if [[ "$ip" != "" ]]; then
echo
echo "VM Started successfully"
echo
echo "You can access Xen Orchestra at https://$ip and via SSH at $ip"
echo "Default credentials for UI: admin@admin.net/admin"
echo "Default credentials for SSH: xo/xopass"
echo
echo "Remember to change both passwords before putting VM to use!"
# ... and print the same without ip-address information if ip-address value was missing
else
echo
echo "VM started but we couldn't fetch it's ip-address from xentools"
echo
echo "Check VM status/ip-address manually. If VM started correctly, it should have Web UI and SSH accessible at it's ip-address"
echo "Default credentials for UI: admin@admin.net/admin"
echo "Default credentials for SSH: xo/xopass"
echo
echo "Remember to change both passwords before putting VM to use!"
fi
}
# run all functions in a specific order
OSCheck
StorageChoose
NetworkChoose
NetworkSettings
VMImport