Merge "Add image build for kubernetes-entrypoint"

tools/images/kubernetes-entrypoint/.gitignore

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+# kubernetes-entrypoint git clone target
+src

tools/images/kubernetes-entrypoint/Dockerfile

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+FROM docker.io/ubuntu:xenial
+MAINTAINER sean.eagan@att.com
+
+ARG BINARY_PATH
+ARG BINARY_INSTALL_PATH=/usr/local/bin/kubernetes-entrypoint
+ENV BINARY_INSTALL_PATH=${BINARY_INSTALL_PATH}
+
+COPY ${BINARY_PATH} ${BINARY_INSTALL_PATH}
+
+CMD ${BINARY_INSTALL_PATH}

tools/images/kubernetes-entrypoint/Makefile

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+# Copyright 2017 The Openstack-Helm Authors.
+#
+# 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.
+
+# It's necessary to set this because some environments don't link sh -> bash.
+SHELL := /bin/bash
+
+# Git args
+GIT_REPO                   ?= https://github.com/stackanetes/kubernetes-entrypoint.git
+GIT_REF                    ?= master
+GIT_CLONE_DIR               = src
+
+# Image args
+IMAGE_REGISTRY             ?= docker.io
+IMAGE_NAME                 ?= kubernetes-entrypoint
+IMAGE_PREFIX               ?= openstackhelm
+IMAGE_TAG                  ?= $(GIT_REF)
+IMAGE_LABELS               ?=
+# Overrides above image args if specified.
+IMAGE                      ?= ${IMAGE_REGISTRY}/${IMAGE_PREFIX}/${IMAGE_NAME}$(if $(IMAGE_TAG),:$(IMAGE_TAG),)
+
+# Build args
+BINARY_INSTALL_PATH        ?=
+
+# Extra args to pass to Docker build
+DOCKER_BUILD_OPTS          ?=
+
+.PHONY: all
+all: clean checkout binary image push
+
+# Remove source code
+.PHONY: clean
+clean:
+	rm -rf $(GIT_CLONE_DIR)
+
+# Checkout source code
+.PHONY: checkout
+checkout:
+	git clone $(GIT_REPO) $(GIT_CLONE_DIR)
+	cd $(GIT_CLONE_DIR); git checkout $(GIT_REF) .
+
+# Build binary
+.PHONY: binary
+binary:
+	cd $(GIT_CLONE_DIR); go build
+
+# Internal variables
+_BINARY_PATH               := $(GIT_CLONE_DIR)/kubernetes-entrypoint
+_BINARY_INSTALL_PATH_ARG   := $(if $(BINARY_INSTALL_PATH),--build-arg BINARY_INSTALL_PATH="${BINARY_INSTALL_PATH}" ,)
+_IMAGE_LABELS_ARG          := $(if $(IMAGE_LABELS),--label="${IMAGE_LABELS}" ,)
+
+# Build image
+.PHONY: image
+image:
+	docker build\
+	  --build-arg BINARY_PATH=$(_BINARY_PATH)\
+	  $(_BINARY_INSTALL_PATH_ARG)\
+	  $(_IMAGE_LABELS_ARG)\
+	  -t $(IMAGE)\
+	  $(DOCKER_BUILD_OPTS)\
+	  .
+
+# Push image
+.PHONY: push
+push:
+	docker push $(IMAGE)

tools/images/kubernetes-entrypoint/README.rst

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+Kubernetes-Entrypoint Image Build
+=================================
+
+Builds an image with kubernetes-entrypoint for use with OpenStack-Helm.
+
+Prerequisites
+-------------
+
+Must have golang 1.7.x installed in order to build the binary.
+
+Instructions
+------------
+
+Build the Kubernetes-Entrypoint Image
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+A known good image is published to docker hub on a fairly regular basis, but if
+you wish to build your own image, from the directory containing this README run:
+
+.. code:: bash
+    # Example configuration overrides, see Makefile for all available options:
+    # export IMAGE_REPO=quay.io
+    # export GIT_REPO=https://github.com/someuser/kubernetes-entrypoint.git
+    # export GIT_REF=someref
+    make