Currently, in tools/manylinux1/build_all.sh we have

This code snippet creates temporary Dockerfiles in /tmp. However, on some special environment, e.g., some managed VMs, we might not have permission to write to /tmp. A solution is to make docker build read the Dockerfile content from the stdin. For more details, please refer to https://docs.docker.com/engine/reference/commandline/build/. The shortcut is

docker build - < Dockerfile