Notes

#!/bin/bash

# Exits on first failed command
set -e

# Errors on undefined variable
set -u

XVA_URL=http://xoa.io/xva

# Welcome message
printf "n👋 33[1mWelcome to the XOA auto-deploy script!33[0mnn"

if ! which xe 2> /dev/null >&2
then
echo
echo '🔴 Sorry, the "xe" command is required for this auto-deploy.'
echo
echo '🚀 Please, make sure you are running this script on a XCP-ng host.'
echo
exit 1
fi

# Basic check: are we on a XS/CH/XCP-ng host?
if grep -Fxq "XenServer|Citrix Hypervisor|XCP-ng" /etc/issue
then
printf "n🔴 Sorry, it seems you are not on a XenServer or XCP-ng host.nn"
printf "n🚀 33[1mThis script is meant to be deployed on XenServer or XCP-ng only.33[0mnn"
exit 1
fi

# Initial choice on network settings: fixed IP or DHCP? (default)

printf "⚙️ STEP 1: XOA configuration nn"
printf "Network settings:n"
read -p "IP address? [dhcp] " ip
ip=${ip:-dhcp}
if [ "$ip" != 'dhcp' ]
then
read -p "Netmask? [255.255.255.0] " netmask
netmask=${netmask:-255.255.255.0}
read -p "Gateway? " gateway
read -p "dns? [8.8.8.8] " dns
dns=${dns:-8.8.8.8}
else
printf "nYour XOA will be started using DHCPn"
fi

printf 'n'

# Default or custom NTP servers
read -p 'Custom NTP servers (separated by spaces)? [] ' ntp
printf 'n'

# SSH account

printf "xoa SSH account:n"
read -srp "Password? (disabled if empty) " xoaPassword
printf 'nn'

if [ -n "$xoaPassword" ]
then
printf "xoa account will be enablednn"
else
printf "xoa account is disabled, to enable it later see https://xen-orchestra.com/docs/troubleshooting.html#set-or-recover-xoa-vm-passwordnn"
fi

# Downloading and importing the VM

printf "📥 STEP 2: XOA Downloadnn"
printf "Importing XOA VM: this might take a while..."
if ! {
if [ $# -ge 1 ]
then
# import from file
uuid=$(xe vm-import filename="$1" 2>&1)
else
# import from URL
if ! uuid=$(xe vm-import url="$XVA_URL" 2>&1)
then
# if it fails (likely due to XS < 7.0 but maybe HTTP proxy)
# use the curl
uuid=$(curl "$XVA_URL" | xe vm-import filename=/dev/stdin 2>&1)
fi
fi
}
then
printf "nnAuto deploy failed. Please contact us on https://vates.tech/contact for assistance.nError:nn %snn" "$uuid"
exit 0
fi

# If static IP selected, fill the xenstore

if [ "$ip" != 'dhcp' ]
then
xe vm-param-set uuid="$uuid" xenstore-data:vm-data/ip="$ip" xenstore-data:vm-data/netmask="$netmask" xenstore-data:vm-data/gateway="$gateway" xenstore-data:vm-data/dns="$dns"
fi

# If custom NTP servers are provided, fill the xenstore
if [ -n "$ntp" ]
then
xe vm-param-set uuid="$uuid" xenstore-data:vm-data/ntp="$ntp"
fi

if [ -n "$xoaPassword" ]
then
xe vm-param-set uuid="$uuid" xenstore-data:vm-data/system-account-xoa-password="$xoaPassword"
fi

# By default, the deploy script will make sure we boot XOA with a VIF on the mgmt network

networkUuid=$(xe pif-list params=network-uuid minimal=true management=true | cut -d , -f 1)
vifUuid=$(xe vm-vif-list uuid="$uuid" params=uuid minimal=true)

# Warning: vif-move only works from XenServer 7.1 and higher
xe vif-move uuid="$vifUuid" network-uuid="$networkUuid"

# Starting the VM
printf "nn🏁 STEP 3: Starting XOAnn"

printf "Booting XOA VM...n"
xe vm-start uuid="$uuid"
sleep 2

# Waiting for the VM IP from Xen tools for 60 secs

printf "Waiting for your XOA to be ready...n"

# list VM IP addresses and returns the first non link local addresses
#
# IPv6 addresses are enclosed in brackets for use in URL
get_hostname() {
local address addresses i n

IFS=';' read -r -a addresses <<<"$(xe vm-param-get uuid="$uuid" param-name=networks)"

# Bash < 4.4 reports unbound variable if array is empty
set +u
n=${#addresses[@]}
set -u
if [ $n -eq 0 ]
then
return 1
fi

# Remove prefixes and dedup
readarray -t addresses <<<"$(printf '%sn' "${addresses[@]#*': '}" | sort -u)"

for i in "${!addresses[@]}"
do
address=${addresses[$i]}
case "$address" in
fe80:*) # ignore link local address
unset "addresses[$i]"
continue
;;
*:*)
address="[$address]"
;;
esac
addresses[$i]=$address
done

set +u
n=${#addresses[@]}
set -u
if [ $n -eq 0 ]
then
return 1
fi

printf 'n33[1m'
if [ "$ip" = dhcp ]
then
printf "🟢 Your XOA is ready at:n"
for address in "${addresses[@]}"
do
printf " https://%s/n" "$address"
done
else
# If we use a fixed IP but on a DHCP enabled network
# We don't want to get the first IP displayed by the tools
# But the fixed one
printf "🟢 Your XOA is ready at https://%s/n" "$ip"

# clean the xenstore data
xe vm-param-remove uuid="$uuid" param-name=xenstore-data param-key=vm-data/dns param-key=vm-data/ip param-key=vm-data/netmask param-key=vm-data/gateway &> /dev/null
fi
printf '33[0m'
}

wait=0
limit=60
while {
! get_hostname &&
[ "$wait" -lt "$limit" ]
}
do
let wait=wait+1
sleep 1
done

if [ $wait -eq $limit ]
then
printf "n🟠 33[1mYour XOA booted but we couldn't fetch its IP address33[0mn"
fi

printf "nDefault UI credentials: [email protected]/adminn"
printf "nVM UUID: %snn" "$uuid"