docker nfs volume to respect default acl settings

Dockerfile

FROM ubuntu:latest
RUN apt-get update;apt-get install acl -yq

test-docker-acl.sh

#!/bin/bash

docker built -t acl .

docker rm -f $(docker ps -a -q)
docker volume rm $(docker volume ls -q)

export NFS_IP=420.69
export NFS_FOLDER=myfolder
export NFS_NAME=mynfs

# nfs v4 does not show default perms, but v3 with acl flag shows default perms

docker volume create --driver local --opt type=nfs \
  --opt o=nfsvers=3,addr=$NFS_IP,rw,acl,async --opt device=:/$NFS_FOLDER $NFS_NAME

docker run -u $(id -u):$(id -g) -v $NFS_NAME:/mnt \
-w /mnt acl bash -c "getfacl ."