Add a volume to save /run, specify the name with INKLUSTER_VOLUME_NAME.

This is supported via a config file, and a command line option.

@@ -4,6 +4,35 @@ set -e
 
 INKLUSTER_IMAGE=brainfood/inkluster-dev
 
+if [[ -e .inkluster.env ]]; then
+	. .inkluster.env
+fi
+
+declare -a REST=()
+while [[ $# -gt 0 ]]; do
+	case "$1" in
+		(-v)
+			INKLUSTER_VOLUME_NAME="$2"
+			shift 2
+			;;
+		(*)
+			break
+			;;
+	esac
+done
+
+has_volume=
+if [[ $INKLUSTER_VOLUME_NAME ]]; then
+	docker volume inspect "inkluster-$INKLUSTER_VOLUME_NAME" 1>/dev/null 2>/dev/null || has_volume=1
+fi
+
+case "$1" in
+	(reset)
+		[[ $has_volume ]] && docker volume rm "inkluster-$INKLUSTER_VOLUME_NAME"
+		exit
+		;;
+esac
+
 declare -a docker_args=(--rm -i)
 
 [[ -t 0 ]] && docker_args+=(-t)
@@ -26,5 +55,11 @@ fi
 
 docker_args+=(-e MAP_UID="$(id -u)" -e MAP_GROUPS="$(id -G)")
 
-docker run "${docker_args[@]}" "$INKLUSTER_IMAGE"
+if [[ $INKLUSTER_VOLUME_NAME ]]; then
+	if [[ ! $has_volume ]]; then
+		docker volume create "inkluster-$INKLUSTER_VOLUME_NAME"
+	fi
+	docker_args+=(-v "inkluster-$INKLUSTER_VOLUME_NAME":/run)
+fi
 
+docker run "${docker_args[@]}" "$INKLUSTER_IMAGE"