Add support for building docker-engine RPM on Oracle Linux 7.

Signed-off-by: Avi Miller <avi.miller@oracle.com>

contrib/builder/rpm/generate.sh

@@ -43,6 +43,10 @@ for version in "${versions[@]}"; do
 				echo 'RUN yum -y swap -- remove systemd-container systemd-container-libs -- install systemd systemd-libs' >> "$version/Dockerfile"
 			fi
 			;;
+		oraclelinux:*)
+			# get "Development Tools" packages and dependencies
+			echo 'RUN yum groupinstall -y "Development Tools"' >> "$version/Dockerfile"
+			;;
 		*)
 			echo 'RUN yum install -y @development-tools fedora-packager' >> "$version/Dockerfile"
 			;;
@@ -57,7 +61,11 @@ for version in "${versions[@]}"; do
 		sqlite-devel # for "sqlite3.h"
 		tar # older versions of dev-tools don't have tar
 	)
-	echo "RUN yum install -y ${packages[*]}" >> "$version/Dockerfile"
+	if [ "$from" == "oraclelinux:7" ]; then
+		echo "RUN yum install --enablerepo=ol7_optional_latest -y ${packages[*]}" >> "$version/Dockerfile"
+	else
+		echo "RUN yum install -y ${packages[*]}" >> "$version/Dockerfile"
+	fi
 
 	echo >> "$version/Dockerfile"
 

contrib/builder/rpm/oraclelinux-7/Dockerfile

@@ -0,0 +1,15 @@
+#
+# THIS FILE IS AUTOGENERATED; SEE "contrib/builder/rpm/generate.sh"!
+#
+
+FROM oraclelinux:7
+
+RUN yum groupinstall -y "Development Tools"
+RUN yum install --enablerepo=ol7_optional_latest -y btrfs-progs-devel device-mapper-devel glibc-static libselinux-devel sqlite-devel tar
+
+ENV GO_VERSION 1.4.2
+RUN curl -fSL "https://storage.googleapis.com/golang/go${GO_VERSION}.linux-amd64.tar.gz" | tar xzC /usr/local
+ENV PATH $PATH:/usr/local/go/bin
+
+ENV AUTO_GOPATH 1
+ENV DOCKER_BUILDTAGS selinux