feat: scripts/vminstall.sh installs an ssh-ready test VM unattended; TESTPLAN.md; vm-install skill

share/vminstall-live.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+# Runs in the live ISO as root (started by the systemd.run= boot parameter
+# that scripts/vminstall.sh passes): installs CachyOS unattended with its
+# headless installer (settings.json from the host), then makes the new
+# system a test VM (SSH key, passwordless sudo, test autologin), and powers
+# off. Everything it needs comes from the host's vminstall-server.py; the log
+# and the result go back there (PUT log / status).
+set -uo pipefail
+H="http://@HOST_IP@:@PORT@"
+LOG=/tmp/vminstall.log
+exec > >(tee -a "$LOG") 2>&1
+up() { curl -fsS -T "$LOG" "$H/install.log" >/dev/null 2>&1; }
+finish() { echo "== $1"; up; curl -fsS -X PUT --data "$1" "$H/status" >/dev/null 2>&1; }
+fail() { finish "failed: $*"; exit 1; }
+
+echo "== Steamify test VM: unattended install ($(date))"
+curl -fsS "$H/vminstall.env" -o /tmp/vminstall.env || fail "no vminstall.env from the host"
+# shellcheck disable=SC1091
+. /tmp/vminstall.env
+curl -fsS "$H/settings.json" -o /tmp/settings.json || fail "no settings.json from the host"
+curl -fsS "$H/vminstall-post.sh" -o /tmp/vminstall-post.sh || fail "no vminstall-post.sh from the host"
+
+# Let whoever watches the VM's window follow along: a Konsole on the live
+# desktop that shows this log.
+(
+    for _ in $(seq 100); do pgrep -u liveuser -x plasmashell >/dev/null && break; sleep 3; done
+    sleep 5
+    runuser -u liveuser -- env XDG_RUNTIME_DIR=/run/user/1000 DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus \
+        systemd-run --user -q konsole --hold -e tail -n +1 -f "$LOG"
+) &
+while sleep 20; do up; done &
+
+systemctl is-system-running --wait >/dev/null 2>&1
+nm-online -t 180 >/dev/null || fail "no network"
+# The live ISO's mirror list and keys can be old; the installer's pacstrap needs current ones.
+pacman -Sy --noconfirm archlinux-keyring cachyos-keyring || echo "(keyring update failed, going on)"
+
+echo "== cachyos-installer"
+cachyos-installer --config /tmp/settings.json || fail "cachyos-installer exited with $?"
+
+# The installer leaves the new system mounted on /mnt, or not: mount it.
+if ! mountpoint -q /mnt; then
+    mount -o subvol=@ "${DEVICE}2" /mnt || fail "can't mount the new system"
+    mount -o subvol=@home "${DEVICE}2" /mnt/home 2>/dev/null
+    mount "${DEVICE}1" /mnt/boot 2>/dev/null
+fi
+[[ -d "/mnt/home/$VM_USER" ]] || fail "the installer created no /home/$VM_USER"
+
+echo "== test VM setup"
+cp /tmp/vminstall-post.sh /tmp/vminstall.env /mnt/root/
+arch-chroot /mnt bash /root/vminstall-post.sh || fail "test VM setup exited with $?"
+rm -f /mnt/root/vminstall-post.sh /mnt/root/vminstall.env
+cp "$LOG" /mnt/var/log/vminstall.log
+sync
+finish ok
+sleep 2
+systemctl poweroff