The Dockerfile in this repository builds an alpine:3.7 container
which lets you run commands inside the container using a UID and GID
which are passed in environment variables from outside the container,
so that any files created in a volume mount can be created as the user
and group who initiated docker run.
To download: docker pull cliwrap/alpine-37
Create a file called myfile in the current directory
docker run --rm -e "HOSTUID=`id -u`" -v "`pwd`:/work" cliwrap/alpine-37 touch myfile
Create a file with the correct uid and gid in the current directory
docker run --rm -e "HOSTUID=`id -u`" -e "HOSTGID=`id -g`" -v "`pwd`:/work" cliwrap/alpine-37 touch myfile