Fix short sha tags in docker builds.
# http://makefiletutorial.com/
BASE_VERSION = 0.0.0-dev
-VERSION_SUFFIX = $(shell git rev-parse --short=7 HEAD | tr -d [:punct:])
+SHORT_SHA = $(shell git rev-parse --short=7 HEAD | tr -d [:punct:])
+VERSION_SUFFIX = $(SHORT_SHA)
BRANCH_NAME = $(shell git rev-parse --abbrev-ref HEAD | tr -d [:punct:])
VERSION = $(BASE_VERSION)-$(VERSION_SUFFIX)
BUILD_DATE = $(shell date -u +'%Y-%m-%dT%H:%M:%SZ')
