94 lines
3.0 KiB
Bash
94 lines
3.0 KiB
Bash
#!/bin/bash
|
|
set -e
|
|
|
|
if [[ $# -lt 3 ]] ; then
|
|
cat <<-EOF
|
|
USAGE (RAM in megabytes)
|
|
|
|
create_vm VMNAME RAM CPUS
|
|
EOF
|
|
exit 1
|
|
fi
|
|
VMNAME=$1
|
|
RAM=$2
|
|
CPUS=$3
|
|
|
|
# Directory where image files will be stored
|
|
IMAGE_DIR=/var/lib/libvirt/images
|
|
IMAGE_FILE=${VMNAME}.qcow2
|
|
IMAGE_PATH=$IMAGE_DIR/$IMAGE_FILE
|
|
CIDATA_PATH=${IMAGE_DIR}/cidata-${VMNAME}.iso
|
|
BASE_FILE=${IMAGE_DIR}/base/ubuntu-20.04-server-cloudimg-amd64-disk-kvm.qcow2
|
|
|
|
# Disk size assigned to the VM
|
|
DISKSIZE=10 # Unit: GB
|
|
|
|
# Create the VM image if it does not already exist
|
|
if [ ! -f "$IMAGE_PATH" ]; then
|
|
echo "info: image file $IMAGE_PATH not found. creating new image"
|
|
# Important: -F qcow2 is required to set the image format
|
|
qemu-img create -b "$BASE_FILE" -f qcow2 -F qcow2 "$IMAGE_PATH" ${DISKSIZE}G
|
|
chmod 600 "$IMAGE_PATH"
|
|
if [ $? -ne 0 ]; then
|
|
echo "error: failed to create image"
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
# Dump the image info
|
|
qemu-img info "$IMAGE_PATH"
|
|
|
|
# Check if the cloud-init metadata file exists
|
|
# if not, generate it
|
|
if [ ! -r $CIDATA_PATH ]; then
|
|
pushd $(dirname $CIDATA_PATH)
|
|
mkdir -p $VMNAME
|
|
cd $VMNAME
|
|
|
|
cat > user-data <<-EOS
|
|
#cloud-config
|
|
ssh_authorized_keys:
|
|
- ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCw0I82gT8R4tpsqWGovLyjm2SR2F863MqNz224h3h/wl0xA5Eu0eRro+ELLv2hoebqQbcMsb89X5+7ObhDRar+b7tzDlXq4x+ECkAy6WbDSmBp3kNVd7muT4c9Zw7UxKsIvIm1ven1TkJ3UG80o6PyGiAUlBj4puIQwhp7OVknVutBBe8Rpp4f6BEuWluwpnPxc3KSaGhhr9p10xeX69cfspH40r8vHpI0zp19O5GpfYSOEH64UbwRpN2QypNB8ISmDHFsNGwdz0Ba4qrEOSGU9GveyOcsvEtt630/0fHqtbPBovOYu/FJISQZya2tofDig4EngBCJNfsPCbXFHtlp greg@karekinian.com
|
|
- ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDDyUDR7ZE6HWmjvlfKrG8Ci+q5E4adbyboKvyYVkUXaTYt+DgisPPAqfGkd0yAHgVnmOS/3f5c3D6RrIXcxFmzwpV2BtmGZztBnEYvC5q8XPQhmu6AFl6ZDjh9XzUeO52py8tt5ZJ9W1R2ob/rlgX8txNHi6XwzuvPxZ7NR/iNup7cruBzkHABhwTvTfwaErufr6eNmNjh5VatNTei1ld6yWtmvbYJqJlpq6YyPu9vYNYPg0AB7I+OqOJhzHXhelY28GSP9KF3GDcHDtN1bV21g9+COcdKhMShQaw1WIkfQKdiuFictZIOCP0/uYSiFhyyoSvISiC3eT8zIimRbDRj basti@skddc.local
|
|
|
|
runcmd:
|
|
# Enable serial console (for virsh)
|
|
- systemctl enable serial-getty@ttyS0.service && systemctl start serial-getty@ttyS0.service
|
|
- curl -s 'https://raw.githubusercontent.com/zerotier/ZeroTierOne/master/doc/contact%40zerotier.com.gpg' | gpg --import
|
|
- curl -s -o /tmp/install_zerotier 'https://install.zerotier.com/'
|
|
- cat /tmp/install_zerotier | gpg && bash /tmp/install_zerotier
|
|
- zerotier-cli join 8541e5153eb4327c
|
|
EOS
|
|
|
|
cat > meta-data <<-EOS
|
|
instance-id: $VMNAME
|
|
local-hostname: $VMNAME
|
|
EOS
|
|
|
|
genisoimage -output "$CIDATA_PATH" -volid cidata -joliet -rock user-data meta-data
|
|
chown libvirt-qemu:kvm "$CIDATA_PATH"
|
|
chmod 600 "$CIDATA_PATH"
|
|
popd
|
|
fi
|
|
|
|
# setting --os-variant to ubuntu20.04 and ubuntu18.04 breaks SSH and networking
|
|
virt-install \
|
|
--name "$VMNAME" \
|
|
--ram "$RAM" \
|
|
--vcpus "$CPUS" \
|
|
--cpu host \
|
|
--arch x86_64 \
|
|
--os-type linux \
|
|
--os-variant ubuntu16.04 \
|
|
--hvm \
|
|
--virt-type kvm \
|
|
--disk "$IMAGE_PATH" \
|
|
--cdrom "$CIDATA_PATH" \
|
|
--boot hd \
|
|
--network=bridge=virbr0,model=virtio \
|
|
--graphics none \
|
|
--serial pty \
|
|
--console pty \
|
|
--autostart \
|
|
--import
|