update and test script

base-image-script/alpine-image_pt1.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+set -e
+
+# Alpine version
+ALPINE_VERSION="v3.20"
+ROOTFS_DIR="alpine-rootfs"
+OUTPUT_TAR="alpine-base.tar.gz"
+PACKAGES="bash curl ca-certificates nano"
+
+echo "[INFO] Downloading alpine-make-rootfs if needed..."
+if [ ! -f ./alpine-make-rootfs ]; then
+    wget https://raw.githubusercontent.com/alpinelinux/alpine-make-rootfs/master/alpine-make-rootfs
+    chmod +x alpine-make-rootfs
+fi
+
+echo "[INFO] Creating Alpine rootfs with selected packages..."
+sudo ./alpine-make-rootfs \
+    --branch "$ALPINE_VERSION" \
+    --mirror http://dl-cdn.alpinelinux.org/alpine \
+    --packages "$PACKAGES" \
+    "$ROOTFS_DIR"
+
+echo "[INFO] Binding system directories for chroot..."
+sudo mount --bind /dev "$ROOTFS_DIR/dev"
+sudo mount --bind /proc "$ROOTFS_DIR/proc"
+sudo mount --bind /sys "$ROOTFS_DIR/sys"
+
+echo "[INFO] Copying part 2 script into chroot..."
+sudo cp alpine-base_pt2.sh "$ROOTFS_DIR/alpine-base_pt2.sh"
+sudo chmod +x "$ROOTFS_DIR/alpine-base_pt2.sh"
+
+echo "[INFO] Entering chroot. Run 'exit' when done."
+sudo chroot "$ROOTFS_DIR" /alpine-base_pt2.sh
+
+echo "[INFO] Continuing with packaging after chroot..."
+bash alpine-base_pt3.sh "$ROOTFS_DIR" "$OUTPUT_TAR"