Refactor Debian container script into modular components with configurable paths and documentation.

Signed-off-by: Richard Qin <richard.qin.x@gmail.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/debian-container/lib/mount.sh b/debian-container/lib/mount.sh
new file mode 100644
index 0000000..0b623c8
--- /dev/null
+++ b/debian-container/lib/mount.sh
@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-3.0-or-later
+# Copyright (C) 2026 by Richard Qin
+
+dc_cleanup_mounts() {
+  umount "$DC_ROOT/dev/pts" 2>/dev/null || true
+  umount "$DC_ROOT/dev" 2>/dev/null || true
+  umount "$DC_ROOT/proc" 2>/dev/null || true
+  umount "$DC_ROOT" 2>/dev/null || true
+}
+
+dc_mount_root() {
+  mkdir -p "$DC_ROOT"
+  mount -o loop "$DC_IMAGE" "$DC_ROOT"
+  mkdir -p "$DC_ROOT/proc" "$DC_ROOT/dev"
+}
+
+dc_mount_virtual_filesystems() {
+  mount -t proc -o ro,nosuid,nodev,noexec proc "$DC_ROOT/proc"
+  mount -t tmpfs -o mode=0755,nosuid tmpfs "$DC_ROOT/dev"
+  mknod -m 0666 "$DC_ROOT/dev/null" c 1 3
+  mknod -m 0666 "$DC_ROOT/dev/zero" c 1 5
+  mknod -m 0666 "$DC_ROOT/dev/random" c 1 8
+  mknod -m 0666 "$DC_ROOT/dev/urandom" c 1 9
+  mknod -m 0666 "$DC_ROOT/dev/tty" c 5 0
+  mkdir -p "$DC_ROOT/dev/pts"
+  mount -t devpts -o newinstance,ptmxmode=0666,mode=0620 devpts "$DC_ROOT/dev/pts"
+  ln -s pts/ptmx "$DC_ROOT/dev/ptmx"
+}
+