Add container-aware service wrapper

tools/modules/functions/service.sh

@@ -0,0 +1,17 @@
+# service.sh
+
+declare -A module_options
+module_options+=(
+	["service,author"]="@dimitry-ishenko"
+	["service,desc"]="Wrapper for service manipulation"
+	["service,example"]="service install some.service"
+	["service,feature"]="service"
+	["service,status"]="active"
+)
+
+function service()
+{
+	# ignore these commands, if running inside container
+	[[ "$1" =~ ^(reload|restart|start|status|stop)$ ]] && systemd-detect-virt -qc && return 0
+	systemctl "$@"
+}