routes.sh
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routes.sh
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	#!/bin/sh

	# -------------------------------------------------------------
	# Network — routes configuration for Linux systems
	# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
	# Project: Nasqueron
	# License: Trivial work, not eligible to copyright
	# Source file: roles/core/network/files/Linux/routes.sh
	# Dependencies: iproute
	# GNU xargs for -r
	# -------------------------------------------------------------
	#
	# <auto-generated>
	# This file is managed by our rOPS SaltStack repository.
	#
	# Changes to this file may cause incorrect behavior
	# and will be lost if the state is redeployed.
	# </auto-generated>

	ROUTES_CONFIG_PATH=/etc/routes.conf

	# -------------------------------------------------------------
	# Ensure user is root
	#
	# Note: POSIX shells don't always define $UID or $EUID.
	# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

	# shellcheck disable=SC3028
	if [ "${EUID:-$(id -u)}" -ne 0 ]; then
	echo "This command must be run as root." >&2
	exit 1
	fi

	# Warn about configuration missing
	if [ ! -f $ROUTES_CONFIG_PATH ]; then
	echo No routes configuration file found at $ROUTES_CONFIG_PATH >&2
	exit 2
	fi

	# Apply routes
	# Ignore comments and blank line, pass the remaining lines to `ip route`
	grep '^[^#]' $ROUTES_CONFIG_PATH \| xargs -L 1 -r ip route replace