capsul-flask/capsulflask/shell_scripts/create.sh

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#!/bin/sh -e
#
# create VMs for the capsul service
# developed by Cyberia Heavy Industries
# POSIX or die
vmname="$1"
template_file="/tank/img/$2"
vcpus="$3"
memory="$4"
pubkeys="$5"
root_voume_size="25G"
if echo "$vmname" | grep -vqE '^capsul-[a-z0-9]{10}$'; then
echo "vmname $vmname must match "'"^capsul-[a-z0-9]{10}$"'
exit 1
fi
if [ ! -f "$template_file" ]; then
echo "template $template_file not found"
exit 1
fi
if echo "$vcpus" | grep -vqE "^[0-9]+$"; then
echo "vcpus \"$vcpus\" must be an integer"
exit 1
fi
if echo "$memory" | grep -vqE "^[0-9]+$"; then
echo "memory \"$memory\" must be an integer"
exit 1
fi
echo "$pubkeys" | while IFS= read -r line; do
if echo "$line" | grep -vqE "^(ssh|ecdsa)-[0-9A-Za-z+/_=@ -]+$"; then
echo "pubkey \"$line\" must match "'"^(ssh|ecdsa)-[0-9A-Za-z+/_=@ -]+$"'
exit 1
fi
done
disk="/tank/vm/$vmname.qcow2"
cdrom="/tank/vm/$vmname.iso"
xml="/tank/vm/$vmname.xml"
if [ -f /tank/vm/$vmname.qcow2 ]; then
echo "Randomly generated name matched an existing VM! Odds are like one in a billion. Buy a lotto ticket."
exit 1
fi
qemu-img create -f qcow2 -b "$template_file" "$disk"
cp /tank/config/cyberia-cloudinit.yml /tmp/cloudinit.yml
echo "$pubkeys" | while IFS= read -r line; do
echo " - $line" >> /tmp/cloudinit.yml
done
cloud-localds "$cdrom" /tmp/cloudinit.yml
qemu-img resize "$disk" "$root_voume_size"
virt-install \
--memory "$memory" \
--vcpus "$vcpus" \
--name "$vmname" \
--disk "$disk",bus=virtio \
--disk "$cdrom",device=cdrom \
--os-type Linux \
--os-variant generic \
--virt-type kvm \
--graphics vnc,listen=127.0.0.1 \
--network network=public1,filterref=clean-traffic,model=virtio \
--import \
--print-xml > "$xml"
# --network network=public6,filterref=clean-traffic,model=virtio
chmod 0600 "$xml" "$disk" "$cdrom"
virsh define "$xml"
virsh start "$vmname"
echo "success"