#cloud-config
users:
  - name: cloud
    passwd: $6$7125787751a8d18a$sHwGySomUA1PawiNFWVCKYQN.Ec.Wzz0JtPPL1MvzFrkwmop2dq7.4CYf03A5oemPQ4pOFCCrtCelvFBEle/K.
    sudo: ALL=(ALL) NOPASSWD:ALL
    lock_passwd: False
    inactive: False
    shell: /bin/bash

ssh_pwauth: True

runcmd:
  - [ systemctl, daemon-reload]
  - [ systemctl, enable, notify-booted.service]
  - [ systemctl, start, --no-block, notify-booted.service ]

write_files:
  -
    path: /etc/systemd/system/vfio.service
    permissions: 0644
    content: |
        [Unit]
        Description=VFIO test systemd service

        [Service]
        Type=simple
        ExecStart=/bin/bash /usr/bin/cloud-hypervisor-vfio.sh

        [Install]
        WantedBy=multi-user.target

  -
    path: /usr/bin/cloud-hypervisor-vfio.sh
    permissions: 0755
    content: |
        #!/bin/bash

        mount /dev/vdc /mnt
        bash -c "echo 1af4 1042 > /sys/bus/pci/drivers/vfio-pci/new_id"
        bash -c "echo 0000:00:05.0 > /sys/bus/pci/devices/0000\:00\:05.0/driver/unbind"
        bash -c "echo 0000:00:05.0 > /sys/bus/pci/drivers/vfio-pci/bind"
        bash -c "echo 1af4 1041 > /sys/bus/pci/drivers/vfio-pci/new_id"
        bash -c "echo 0000:00:07.0 > /sys/bus/pci/devices/0000\:00\:07.0/driver/unbind"
        bash -c "echo 0000:00:07.0 > /sys/bus/pci/drivers/vfio-pci/bind"
        bash -c "echo 0000:00:08.0 > /sys/bus/pci/devices/0000\:00\:08.0/driver/unbind"
        bash -c "echo 0000:00:08.0 > /sys/bus/pci/drivers/vfio-pci/bind"
        # 1G ram requires 512 pages
        echo 512 | sudo tee /proc/sys/vm/nr_hugepages
        sudo chmod a+rwX /dev/hugepages
        /mnt/cloud-hypervisor --kernel /mnt/vmlinux-x86_64 --cmdline "console=hvc0 reboot=k panic=1 nomodules root=/dev/vda1 VFIOTAG" --disk path=/mnt/focal-server-cloudimg-amd64-custom-20210609-0.raw path=/mnt/cloudinit.img --cpus boot=1 --memory size=512M,hotplug_size=1G,hugepages=on --device path=/sys/bus/pci/devices/0000:00:05.0/ path=/sys/bus/pci/devices/0000:00:07.0/ path=/sys/bus/pci/devices/0000:00:08.0/ --api-socket=/tmp/ch_api.sock

  -
    path: /etc/systemd/system/notify-booted.service
    permissions: 0644
    content: |
        [Unit]
        Description=Notify the tcp listener on the host that the guest is booted
        After=sshd.service

        [Service]
        Type=simple
        ExecStart=/usr/bin/cloud-hypervisor-notify-booted.sh
        Restart=on-failure
        RestartSec=2

        [Install]
        WantedBy=multi-user.target

  -
    path: /usr/bin/cloud-hypervisor-notify-booted.sh
    permissions: 0755
    content: |
        #!/bin/bash
        set -e

        echo -n "@DEFAULT_TCP_LISTENER_MESSAGE" > /dev/tcp/@HOST_IP/@TCP_LISTENER_PORT
