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had an empty password so any user on the host could connect to the VM over VNC, log in as root, and potentially populate the host’s store from there. This change fixes that. * gnu/services/virtualization.scm (operating-system-with-locked-root-account): New procedure. (hurd-vm-disk-image)[transform]: Add ‘operating-system-with-locked-root-account’ when offloading. Ludovic Courtès 2023-10-01services: hurd-vm: Implement zero-configuration offloading....This allows for zero-configuration offloading to a childhurd. * gnu/services/virtualization.scm (operating-system-with-offloading-account): New procedure. (<hurd-vm-configuration>)[offloading?]: New field. (hurd-vm-disk-image): Define ‘transform’ and use it. (hurd-vm-activation): Generate SSH key for user ‘offloading’ and add authorize it via /etc/childhurd/etc/ssh/authorized_keys.d. (hurd-vm-configuration-offloading-ssh-key) (hurd-vm-guix-extension): New procedures. (hurd-vm-service-type): Add GUIX-SERVICE-TYPE extension. * gnu/tests/virtualization.scm (run-childhurd-test)[import-module?]: New procedure. [os]: Add (gnu build install) and its closure to #:import-modules. [test]: Add “copy-on-write store” and “offloading” tests. * doc/guix.texi (Virtualization Services): Document it. Ludovic Courtès 2023-10-01services: hurd-vm: Disable password-based authentication for root....With offloading to a childhurd is enabled, allowing password-less root login in the childhurd to anyone amounts to providing write access to the host’s store to anyone. Thus, disable password-based root logins in the childhurd. * gnu/services/virtualization.scm (%hurd-vm-operating-system): Change ‘permit-root-login’ to 'prohibit-password. * gnu/tests/virtualization.scm (%childhurd-os): Provide a custom ‘os’ field for ‘hurd-vm-configuration’. * doc/guix.texi (Virtualization Services): Remove mention of password-less root login. Ludovic Courtès 2023-10-01services: hurd-vm: ‘image’ field has to be an <image> record....* gnu/services/virtualization.scm (<hurd-vm-configuration>)[image]: Document as being an <image> record. (hurd-vm-disk-image): Remove call to ‘system-image’. (hurd-vm-shepherd-service): Add call to ‘system-image’. * gnu/tests/virtualization.scm (hurd-vm-disk-image-raw): Remove call to ‘system-image’. * doc/guix.texi (Virtualization Services): Adjust accordingly. Ludovic Courtès 2023-10-01services: childhurd: Authorize the childhurd’s key on the host....This partly automates setting up a childhurd for offloading purposes. * gnu/services/virtualization.scm (authorize-guest-substitutes-on-host): New procedure. (hurd-vm-activation): Use it. Ludovic Courtès 2023-10-01services: hurd-vm: Use the default SSH port number....* gnu/services/virtualization.scm (%hurd-vm-operating-system): Remove ‘port-number’ from ‘openssh-configuration’. (hurd-vm-net-options): Change 2222 to 22 in port forwarding. Ludovic Courtès 2023-09-18services: hurd-vm: Use ‘qemu-system-x86_64’....Fixes <https://issues.guix.gnu.org/66053>. * gnu/services/virtualization.scm (hurd-vm-shepherd-service)[vm-command]: Use ‘qemu-system-x86_64’. Ludovic Courtès 2023-07-13services: childhurd: Bump default qemu memory to 2048MB....When booting with pci-arbiter and rumpdisk and using 1024MB of memory for qemu, booting hangs, or seems to hang, at the end of the rumpdisk boot messages. At least 1200MB is required, currently. * gnu/services/virtualization.scm (<hurd-vm-configuration>)[memory-size]: Bump to 2048. * gnu/system/examples/bare-hurd.tmpl: Suggest using 2048 here too. Update example `guix system image' and "qemu" command lines too. Signed-off-by: Josselin Poiret <dev@jpoiret.xyz> Janneke Nieuwenhuizen 2023-07-07services: libvirt: Add requirement on dbus....* gnu/services/virtualization.scm (libvirt-shepherd-service): Add requirement on dbus. Josselin Poiret 2023-06-16services: qemu-guest-agent: Add dependency on udev....Fixes <https://issues.guix.gnu.org/64057>. * gnu/services/virtualization.scm (qemu-guest-agent-shepherd-service): Add 'requirement' field. Reported-by: Yann Dupont <yann.dupont@univ-nantes.fr> Ludovic Courtès 2023-05-09service: qemu-binfmt: Remove broken qemu targets....* gnu/services.virtualization.scm (%qemu-platforms): Remove %i486, %aarch64be. Efraim Flashner 2023-05-04services: qemu-binfmt: Add more targets....* gnu/services/virtualization.scm (%i486, %sparc64, %aarch64be, %xtensa, %xtensaeb, %microblaze, %microblazeel, %or1k, %hexagon, %loongson64): New variables. (%armeb): Correct family field. (%qemu-platforms): Add them. Efraim Flashner 2022-11-20gnu: Fix copyright line....This is a follow-up to commit 9ad311ec15c05efc78f74252e7eb6cddfb0b5cea. * gnu/packages/virtualization.scm: Remove copyright line. * gnu/services/virtualization.scm: Add copyright line. Signed-off-by: Christopher Baines <mail@cbaines.net> Leo Nikkilä 2022-11-07services: qemu-binfmt: Add x86_64 QEMU target....* gnu/services/virtualization.scm (%x86_64): New variable. (%qemu-platforms) Add it. Signed-off-by: Christopher Baines <mail@cbaines.net> Leo Nikkilä