first commit

vm/provision.sh

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+#!/bin/bash
+#
+# Purpose : Turn Arch's cloud image into the machine CoreDesktop's README starts
+#           from: Arch with archinstall's desktop profile and GNOME. Run as root
+#           in the VM while building the smoketest's base image.
+#
+# Differences from a real archinstall machine, on purpose: the user (tester)
+# logs in to GNOME automatically and has passwordless sudo, so the smoketest
+# runs without anyone at the keyboard.
+
+set -euo pipefail
+
+USER_NAME=tester
+
+echo "== Growing / to fill the disk"
+btrfs filesystem resize max / || echo "Couldn't grow /; continuing."
+df -h /
+
+echo "== Sharing the host's package cache"
+if ! grep -q '^pkgcache ' /etc/fstab; then
+  echo 'pkgcache /var/cache/pacman/pkg 9p trans=virtio,version=9p2000.L,msize=524288,nofail 0 0' >> /etc/fstab
+fi
+systemctl daemon-reload
+mountpoint -q /var/cache/pacman/pkg || mount /var/cache/pacman/pkg \
+  || echo "No shared package cache; packages download into the VM."
+
+echo "== Installing GNOME"
+pacman -Sy --needed --noconfirm archlinux-keyring
+# archinstall's desktop profile with GNOME, NetworkManager and PipeWire
+pacman -Su --needed --noconfirm \
+  gnome gnome-tweaks gdm \
+  networkmanager \
+  pipewire pipewire-alsa pipewire-pulse pipewire-jack wireplumber \
+  base-devel git sudo openssh nano vim htop wget smartmontools xdg-utils
+
+echo "== Locale"
+sed -i 's/^#en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen
+locale-gen
+echo LANG=en_US.UTF-8 > /etc/locale.conf
+
+echo "== NetworkManager instead of systemd-networkd"
+systemctl disable systemd-networkd.service systemd-networkd.socket systemd-resolved.service || true
+# NetworkManager writes its own resolv.conf; the cloud image's points at
+# systemd-resolved
+rm -f /etc/resolv.conf
+systemctl enable NetworkManager.service gdm.service sshd.service
+
+echo "== Automatic login to GNOME as $USER_NAME"
+cat > /etc/gdm/custom.conf << EOF
+[daemon]
+AutomaticLoginEnable=True
+AutomaticLogin=$USER_NAME
+EOF
+
+echo "== Smoketest folder"
+install -d -o "$USER_NAME" -g "$USER_NAME" /srv/smoketest
+
+# cloud-init has done its job (the user, their SSH key and sudo rights)
+touch /etc/cloud/cloud-init.disabled
+
+echo "== Done"

vm/user-data

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+#cloud-config
+# The smoketest VM's user. coredesktop-dev puts its SSH key in place of @SSH_KEY@.
+users:
+  - name: tester
+    shell: /bin/bash
+    groups: [wheel]
+    sudo: "ALL=(ALL) NOPASSWD:ALL"
+    lock_passwd: false
+    ssh_authorized_keys:
+      - @SSH_KEY@
+# For logging in at the console (SMOKETEST_VNC) when something goes wrong
+chpasswd:
+  expire: false
+  users:
+    - name: tester
+      password: tester
+      type: text