vmlab/create-vm.sh
2024-07-13 18:14:41 +02:00

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1.6 KiB
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#!/usr/bin/env bash
set -eu
NAME="${1:?Must pass the name}"
if [ "$(whoami)" != "root" ]; then
echo "script must be run as root!"
fi
mkdir -p tmp
mkdir -p vm-state
# https://mop.koeln/blog/creating-a-local-debian-vm-using-cloud-init-and-libvirt/
# > DO NOT DOWNLOAD THE GENERICCLOUD IMAGE
IMG_DOWNLOADED=debian-12-generic-amd64.qcow2
IMG=debian-12-generic-amd64-bigger.qcow2
if ! [ -f "tmp/$IMG_DOWNLOADED" ]; then
curl -L -o "tmp/$IMG_DOWNLOADED" https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-generic-amd64.qcow2
fi
if ! [ -f "tmp/$IMG" ]; then
cp "tmp/$IMG_DOWNLOADED" "tmp/$IMG"
echo "INCREASE THE SIZE OF THE IMAGE!!!"
echo "sudo qemu-img resize tmp/$IMG 30G"
echo "sudo modprobe nbd max_part=10"
echo "sudo qemu-nbd -c /dev/nbd0 tmp/$IMG_DOWNLOADED"
echo "sudo gparted /dev/nbd0"
echo "sudo qemu-nbd -d /dev/nbd0"
exit 1
fi
DISK="vm-state/$NAME.qcow2"
cp "tmp/$IMG" "$DISK"
meta_data=$(mktemp)
cat >"$meta_data" <<EOF
instance-id: $NAME
local-hostname: $NAME
EOF
virt-install -n "$NAME" \
--os-variant=debian12 \
--ram=2048 --vcpus=2 \
--import --disk "path=$DISK,bus=virtio" \
--network network=default,model=virtio \
--graphics=none --rng /dev/urandom \
"--cloud-init=user-data=user-data,meta-data=$meta_data" \
--noautoconsole
rm "$meta_data"
echo "Successfully created $NAME"
until virsh domifaddr "$NAME" | grep ipv4 >/dev/null; do
echo "waiting for VM to start up and get an IP"
sleep 1
done
ip=$(virsh domifaddr "$NAME" | grep ipv4 | awk '{print $4}' | cut -d/ -f1)
echo "IP: $ip"
echo "$ip hostname=$NAME" >> vm-state/inventory.ini