build etcdhelper from OpenShift

build_etcdhelper.sh

#!/bin/bash

# 1. `rpm -i atomic-openshift-xxx.rpm`
# 2. `cd ~/rpmbuild/BUILD/atomic-openshift-xxx`
# 3. run this script

export OS_ONLY_BUILD_PLATFORMS="linux/amd64"
export OS_GOFLAGS=-v

# the line below is from: $(str='%global os_git_vars '; grep "^$str" SPECS/origin.spec | sed -e "s/^$str//")
# v3.6
#export OS_GIT_MINOR=6+ OS_GIT_MAJOR=3 OS_GIT_VERSION=v3.6.173.0.21 OS_GIT_TREE_STATE=clean OS_BUILD_LDFLAGS_DEFAULT_IMAGE_STREAMS=rhel7 OS_IMAGE_PREFIX=registry.access.redhat.com/openshift3/ose OS_GIT_COMMIT=f95b0e7
# v3.11
export OS_GIT_MINOR=11+ OS_GIT_MAJOR=3 OS_GIT_VERSION=v3.11.16 OS_GIT_TREE_STATE=clean OS_BUILD_LDFLAGS_DEFAULT_IMAGE_STREAMS=rhel7 KUBE_GIT_VERSION=v1.11.0+d4cacc0 OS_GIT_PATCH=16 KUBE_GIT_COMMIT=d4cacc0 KUBE_GIT_MINOR=11+ OS_GIT_COMMIT=b48b8f8f12 KUBE_GIT_MAJOR=1 OS_IMAGE_PREFIX=registry.redhat.io/openshift3/ose ETCD_GIT_VERSION=v3.2.16-0-g121edf0 ETCD_GIT_COMMIT=121edf0

./hack/build-go.sh ./tools/etcdhelper

# How to run etcdhelper:
# ./etcdhelper \
#   -cacert /etc/origin/master/ca-bundle.crt \
#   -cert /etc/origin/master/master.etcd-client.crt \
#   -key /etc/origin/master/master.etcd-client.key \
#   -endpoint https://<ENDPOINT>:4001 \
#   dump