From c22eb6d2c5cfd7cb34df83fcb0d9b12b1bbfe795 Mon Sep 17 00:00:00 2001
From: Harshavardhana <harsha@minio.io>
Date: Sat, 28 Nov 2015 12:10:13 -0800
Subject: [PATCH] makefile: Fix docker image

---
 Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index b97765a2e..dacea5c7d 100644
--- a/Makefile
+++ b/Makefile
@@ -70,10 +70,12 @@ pkg-remove:
 install: gomake-all
 
 dockerimage: install
+	@echo "Checking if docker is installed."
+	@if [ ! -e /usr/bin/docker ]; then echo "Docker not installed, cannot build docker image. Please install 'sudo apt-get install docker.io'" && exit 1; fi
 	@echo "Building docker image:" minio:$(TAG)
 	@GO15VENDOREXPERIMENT=1 go build --ldflags $(DOCKER_LDFLAGS) -o minio.dockerimage
 	@mkdir -p export
-	@docker build --rm --tag=minio:$(TAG) .
+	@sudo docker build --rm --tag=minio/minio:$(TAG) .
 	@rmdir export
 	@rm minio.dockerimage