--- /dev/null
+##############################################################################
+# Copyright (c) 2019 AT&T, ENEA AB, Nokia and others #
+# #
+# Licensed under the Apache License, Version 2.0 (the "License"); #
+# you maynot use this file except in compliance with the License. #
+# #
+# You may obtain a copy of the License at #
+# http://www.apache.org/licenses/LICENSE-2.0 #
+# #
+# Unless required by applicable law or agreed to in writing, software #
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT #
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
+# See the License for the specific language governing permissions and #
+# limitations under the License. #
+##############################################################################
+
+SUBDIRS := $(wildcard */.)
+SUBDIRS_NAME := $(SUBDIRS:/.=)
+SUBDIRS_BUILD := $(SUBDIRS:/.=-build)
+SUBDIRS_PUSH := $(SUBDIRS:/.=-push)
+
+.PHONY: all
+all: $(SUBDIRS_NAME)
+
+.PHONY: build-all
+build-all: $(SUBDIRS_BUILD)
+
+.PHONY: $(SUBDIRS_NAME)
+$(SUBDIRS_NAME):
+ $(MAKE) -C $@
+
+.PHONY: $(SUBDIRS_BUILD)
+$(SUBDIRS_BUILD): $(SUBDIRS)
+ $(MAKE) -C $< build
+
+include build.mk