--- /dev/null
+#
+# Copyright 2017 Sandvine
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not 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.
+
+TOPDIR=$(shell readlink -f .|sed -e 's/\/descriptor-packages\/.*//')
+
+BUILD_DIR := build
+TOOLS_DIR := $(TOPDIR)/descriptor-packages/tools
+PKG_BASE_NAME := $(shell basename $(shell pwd))
+PKG_NAME := $(addsuffix .tar.gz, $(PKG_BASE_NAME))
+
+CHARM_DIR := $(TOPDIR)/juju-charms
+CHARM_SRC_DIR := $(CHARM_DIR)/layers
+CHARM_DOCKER_TAG := charm-tools
+CHARM_BUILD_DIR := $(CHARM_DIR)/builds
+
+Q=@
+
+GEN_VNFD_PKG := $(TOOLS_DIR)/gen_vnfd_pkg.sh
+GEN_NSD_PKG := $(TOOLS_DIR)/gen_nsd_pkg.sh
+GEN_PKG := $(TOOLS_DIR)/generate_descriptor_pkg.sh
+BUILD_VNFD := $(shell readlink -f .|sed -e 's/\/.*descriptor-packages//' | grep vnfd)
+
+DEP_FILES = $(wildcard src/*)
+
+ifdef BUILD_VNFD
+$(BUILD_DIR)/$(PKG_BASE_NAME): src $(DEP_FILES)
+ $(Q)mkdir -p $@
+ $(Q)cp -rf $</. $@
+ $(Q)$(GEN_VNFD_PKG) $< $@
+else
+$(BUILD_DIR)/$(PKG_BASE_NAME): src $(DEP_FILES)
+ $(Q)mkdir -p $@
+ $(Q)cp -rf $</. $@
+ $(Q)$(GEN_NSD_PKG) $< $@
+endif
+
+ifdef VNFD_CHARM
+$(BUILD_DIR)/$(PKG_NAME): $(BUILD_DIR)/$(PKG_BASE_NAME) $(CHARM_BUILD_DIR)/$(VNFD_CHARM)
+ $(Q)echo "building $(PKG_BASE_NAME) with charm $(VNFD_CHARM)"
+ $(Q)cp -rf $(CHARM_BUILD_DIR)/$(VNFD_CHARM) $(BUILD_DIR)/$(PKG_BASE_NAME)/charms
+ $(Q)$(GEN_PKG) --no-remove-files -d $(BUILD_DIR) $(BUILD_DIR)/$(PKG_BASE_NAME)
+else
+$(BUILD_DIR)/$(PKG_NAME): $(BUILD_DIR)/$(PKG_BASE_NAME)
+ $(Q)echo "building $(PKG_BASE_NAME)"
+ $(Q)$(GEN_PKG) --no-remove-files -d $(BUILD_DIR) $(BUILD_DIR)/$(PKG_BASE_NAME)
+endif
+
+$(CHARM_BUILD_DIR)/%: $(CHARM_SRC_DIR)/%
+ $(Q)docker build -q -t $(CHARM_DOCKER_TAG) $(CHARM_DIR)/.
+ $(Q)docker run -u $$(id -u):$$(id -g) -v$(CHARM_DIR):$(CHARM_DIR) -w$(CHARM_DIR) $(CHARM_DOCKER_TAG) charm-build -o $(CHARM_DIR) $<
+
+clean:
+ $(Q)rm -rf $(BUILD_DIR)
+ $(Q)rm -rf $(CHARM_BUILD_DIR)
+
+.DEFAULT_GOAL := all