- Create unified Arch enum in utils.rs with methods for all naming conventions
- Replace 5 duplicate architecture mapping functions with single source of truth
- Add memory string validation for QEMU
- Add KVM capability verification via ioctl
- Fix TOCTOU race in resolv.conf writing using O_EXCL
- Extract magic numbers to named constants
- Use constants for stack size, buffer sizes, hostname entropy
Add an init script to the initramfs that traps shell exit and triggers
poweroff via /proc/sysrq-trigger. This ensures QEMU terminates cleanly
when the user exits the shell, rather than hanging indefinitely.
Changes:
- Add /init script to initramfs that runs as PID 1
- Use -no-reboot QEMU flag to exit on guest poweroff
- Simplify kernel command line using environment variables
- Init script handles hostname, device creation, and poweroff on exit
- Move detect_shell() to new src/utils.rs for reuse
- Use detected shell in QEMU VM mode (bash when available)
- Update chroot.rs and qemu_vm.rs to use shared function
Generate hostname like "ecr-vm-<hex>" at boot time via kernel command
line, leaving initramfs cacheable. Set via echo to /etc/hostname and
hostname command before spawning shell.
Add --kernel <PATH> option to boot extracted rootfs in a QEMU virtual
machine instead of namespace/chroot mode. The rootfs is converted to an
ext4 disk image using mke2fs and booted with the provided kernel.
vhaudiquet