Merge pull request #4 from joerick/build-tags

Tag each docker build with a unique id, and push to dockerhub

Author: mattip

docker/deploy.sh

@@ -1,4 +1,8 @@
 #!/bin/bash
-docker login -u pypywheels -p $DOCKERPASS
 tag=pypywheels/manylinux2010-pypy_x86_64
+build_id=$(git show -s --format=%cd-%h --date=short $TRAVIS_COMMIT)
+
+docker login -u pypywheels -p $DOCKERPASS
+docker tag ${tag}:latest ${tag}:${build_id}
+docker push ${tag}:${build_id}
 docker push ${tag}:latest