Setup necessary mounts for to-release deployment

In order to start a GA release deployment, mounts to drbd file
systems should be created to alternate ostree deployment branch
(i.e, /sysroot/ostree/<1|2>). This commit creates a yaml file to
be used by apt-ostree to do the mounts.

Test Plan:
Mounts created with success
Pkg build with success

Story: 2010676
Task: 48829

Change-Id: I53609a91475f0871475247687ae7d01278a42a82
Signed-off-by: Luis Eduardo Bonatti <LuizEduardo.Bonatti@windriver.com>

software/debian/deb_folder/rules

@@ -64,4 +64,8 @@ override_dh_install:
 		${ROOT}/usr/sbin/platform-upgrade-precheck
 	install -m 444 ${METADATA_FILE} \
         ${ROOT}/etc/software/${METADATA_FILE}
+	install -m 755 scripts/chroot_mounts.sh \
+		${ROOT}/usr/bin/chroot_mounts.sh
+	install -m 444 scripts/ostree_mounts.yaml \
+        ${ROOT}/etc/software/ostree_mounts.yaml
 	dh_install

software/scripts/chroot_mounts.sh

@@ -0,0 +1,62 @@
+#!/bin/bash
+#
+# Copyright (c) 2023 Wind River Systems, Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+DEV_PATH=/dev
+PLATFORM_PATH=/opt/platform
+RABBIT_PATH=/var/lib/rabbitmq
+POSTGRES_UPGRADE_PATH=/var/lib/postgresql/upgrade
+PLATFORM_CONF_PATH=/etc/platform
+TMP_PATH=/tmp
+USR_PATH=/usr
+ETC_PATH=/etc
+PROC_PATH=/proc
+
+mount_points=(
+    "$DEV_PATH"
+    "$PROC_PATH"
+    "$PLATFORM_PATH"
+    "$RABBIT_PATH"
+    "$POSTGRES_UPGRADE_PATH"
+)
+
+
+if [ -z "$1" ]; then
+    echo "Error: Ostree deployment branch parameter is missing."
+    exit 1
+fi
+
+OSTREE_DEPLOYMENT_BRANCH="$1"
+
+handle_error() {
+    local exit_code="$1"
+    local error_message="$2"
+
+    echo "Error: $error_message" >&2
+    echo "Please check the error details and take appropriate action for recovery." >&2
+
+    exit "$exit_code"
+}
+
+for dir in "${mount_points[@]}"; do
+    target_dir=${OSTREE_DEPLOYMENT_BRANCH}${dir}
+    if [ ! -d "$target_dir" ]; then
+        sudo mkdir -p "$target_dir"
+    fi
+    sudo mount --bind "$dir" "$target_dir" ||
+        handle_error 1 "Failed to bind mount $dir to $target_dir"
+done
+
+if [ ! -d "${TMP_PATH}${PLATFORM_CONF_PATH}" ]; then
+    mkdir -p "${TMP_PATH}${PLATFORM_CONF_PATH}"
+fi
+
+sudo mount --bind "${OSTREE_DEPLOYMENT_BRANCH}${USR_PATH}${ETC_PATH}" "${OSTREE_DEPLOYMENT_BRANCH}${ETC_PATH}" ||
+    handle_error 1 "Failed to bind mount ${OSTREE_DEPLOYMENT_BRANCH}${USR_PATH}${ETC_PATH} to
+    ${OSTREE_DEPLOYMENT_BRANCH}${ETC_PATH}"
+
+sudo mount --bind "${PLATFORM_CONF_PATH}" "${TMP_PATH}${PLATFORM_CONF_PATH}" ||
+    handle_error 1 "Failed to bind mount ${PLATFORM_CONF_PATH} to ${TMP_PATH}${PLATFORM_CONF_PATH}"

software/scripts/ostree_mounts.yaml

@@ -0,0 +1,10 @@
+---
+- /etc/platform:/tmp/etc/platform
+- "{{ OSTREE_DEPLOYMENT_BRANCH }}/usr/etc:{{ OSTREE_DEPLOYMENT_BRANCH }}/etc"
+- "/dev:{{ OSTREE_DEPLOYMENT_BRANCH }}/dev"
+- "/proc:{{ OSTREE_DEPLOYMENT_BRANCH }}/proc"
+- "/opt/platform:{{ OSTREE_DEPLOYMENT_BRANCH }}/opt/platform"
+- "/var/lib/rabbitmq:{{ OSTREE_DEPLOYMENT_BRANCH }}/var/lib/rabbitmq"
+- >
+  "/var/lib/postgresql/upgrade:
+  {{ OSTREE_DEPLOYMENT_BRANCH }}/var/lib/postgresql/upgrade"