build-confd

#!/bin/bash

set -vxe

# Until confd package arrives to apt packages, build it ourselves:
# Installation process initially inspired by https://github.com/smebberson/docker-alpine/blob/master/alpine-confd/Dockerfile
# and later adapted to Ubuntu.
# CONF_VERSION can be any git ref like commit id, branch, tag
# ENV CONFD_VERSION=master
export CONFD_VERSION=v0.11.0

export GOPATH=$(pwd)/go/confd
export REPO_PATH=$GOPATH/src/github.com/kelseyhightower
mkdir -p $REPO_PATH

export CONFD_PATH=$REPO_PATH/confd

if [ -d "$CONFD_PATH" ]; then
  rm -rf $CONFD_PATH
fi

git clone https://github.com/kelseyhightower/confd.git $GOPATH/src/github.com/kelseyhightower/confd

pushd $GOPATH/src/github.com/kelseyhightower/confd

git checkout -q --detach "$CONFD_VERSION"

# For legacy confd branch with non-standard file structure
if [ -d src/github.com/kelseyhightower/confd ]; then echo fixing file tree to conform this project to standard golang project structure; mv src/github.com/kelseyhightower/confd/* .; fi && \
if [ -d vendor/src ]; then echo fixing vendor to conform this project to standard golang project structure; mv vendor/src/* vendor/; fi && \

CGO_ENABLED=0 GOOS=linux go build -a -tags netgo -ldflags '-w' .

chmod +x confd

popd

mkdir -p rootfs/bin
cp $CONFD_PATH/confd rootfs/bin/