support DOCKER_VERSION when installing via Makefile

2015-09-16 15:21:09 -07:00
parent 1e479c63bd
commit 95388b07bb
1 changed files with 3 additions and 0 deletions
--- a/3
+++ b/3
@@ -104,6 +104,9 @@ docker: aufs
 	usermod -aG docker dokku
 ifndef CI
 	curl -sSL https://get.docker.com/ | sh
+ifdef DOCKER_VERSION
+	apt-get install -qq -y docker-engine=${DOCKER_VERSION} || (apt-cache madison docker-engine ; exit 1)
+endif
 	sleep 2 # give docker a moment i guess
 endif