Copyright (C) 2022  Pasha <pasha@member.fsf.org>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.


GNU Hurd on OpenStack
----------------------

1. Install GNU Hurd and save as qcow2 format.
2. create user account "debian". (openstack will try to push selected ssh key based login for this account.)
3. workaround: currnet GNU Hurd in openstack could not read login metadata. Therefore, create another account name hurdstack. We will use this account to login via ssh.

-------------------
set console output
-------------------
# sed -i 's/{GRUB_CMDLINE_GNUMACH}/{GRUB_CMDLINE_GNUMACH} console=com0/' /etc/grub.d/10_hurd
# export PATH=$PATH:/usr/sbin/:/sbin/
# update-grub

------------------
install packages
------------------
# apt-get install patch cloud-init inetutils-tools

-----------------------------------------------
patch cloud-init for inetutils-ifconfig support
-----------------------------------------------
# patch /usr/lib/python3/dist-packages/cloudinit/netinfo.py < netinfo.py.patch

(md5sum /usr/lib/python3/dist-packages/cloudinit/netinfo.py and set the value - optional)

# sed -i "s/004c853827df095227eef86175ee351b  usr\/lib\/python3\/dist-packages\/cloudinit\/netinfo.py/79af408603bc6e3489fd2d3f1a0e9cac  usr\/lib\/python3\/dist-packages\/cloudinit\/netinfo.py/" /var/lib/dpkg/info/cloud-init.md5sums

-------------------------------
remove MAC address and clean up
-------------------------------
# virt-sysprep -d hurdstack
# virsh undefine hurdstack

--------------------------------------------------------------
upload in openstack (you may change --public to other settings)
--------------------------------------------------------------
$ openstack image create \
  --container-format bare \
  --disk-format qcow2 \
  --property hw_disk_bus=ide \
  --property os_type=linux \
  --property os_distro=debian \
  --property os_admin_user=debian \
  --property os_version='10.12.7' \
  --property hw_vif_model=e1000 \
  --public \
  --file hurdstack.qcow2 \
  hurdstack

------------------------------
example create server command
------------------------------
list your available net-id
$ openstack network list

list your available security group id
$ openstack security group list

start an instance with any flavor (example with m1.nano)
$ openstack server create \
  --flavor m1.nano \
  --image hurdstack \
  --nic net-id=44b3993a-60dd-4074-a911-1b9ac4b8b6fa \
  --security-group 8b5d5482-2686-40a8-b394-5c764b6fe310 \
  --key-name mykey hurdstackinstance

--------------------
check  server status
--------------------
# openstack server list

enable port 22 from web-interface or command line for ssh login.

You may check status in openstack web-interface logs and ssh when it is ready.
ssh might take several minutes as cloud-init is trying to fetch metadata on boot which is still unavailable from GNU Hurd.

links:
https://www.debian.org/ports/hurd/hurd-install
https://docs.openstack.org/image-guide/create-images-manually.html