+#
+# Copyright 2016 RIFT.io Inc
+#
+# 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.
+#
+#
+
+BUILD_DIR = .
+
+CHARMS:= pingpong vyos-proxy netutils simple ansible-charm
+CHARM_SRC_DIR := layers
+CHARM_BUILD_DIR := $(BUILD_DIR)/builds
+
+CHARM_SRC_DIRS := $(addprefix $(CHARM_SRC_DIR)/, $(CHARMS))
+CHARM_BUILD_DIRS := $(addprefix $(CHARM_BUILD_DIR)/, $(CHARMS))
+CHARM_DOCKER_TAG := charm-tools
+DOCKER_BUILD ?=
+
+all: $(CHARM_BUILD_DIRS)
+
+clean:
+ -@ $(RM) -rf $(CHARM_BUILD_DIR)
+
+
+ifdef DOCKER_BUILD
+$(CHARM_BUILD_DIR)/%: $(CHARM_SRC_DIR)/%
+ docker build -t $(CHARM_DOCKER_TAG) .
+ docker run -u $$(id -u):$$(id -g) -v$$(pwd):$$(pwd) -w$$(pwd) $(CHARM_DOCKER_TAG) charm-build -o $(BUILD_DIR) $<
+else
+$(CHARM_BUILD_DIR)/%: $(CHARM_SRC_DIR)/%
+ charm build -o $(BUILD_DIR) $<
+endif