Incorrect file permissions for Ruby

[theseanything]

When setting up a brand new VM I experience the follow issues.
Running ./update-bundler.sh fails to run with the following error for some repos:

Errno::EPERM: Operation not permitted @ chown_internal -
/tmp/bundler20180918-9784-17s3u11rake-12.3.1/bin

Running bundle install in some repos produces:

ERROR:  While executing gem ... (Gem::FilePermissionError)
    You don't have write permissions for the /usr/lib/rbenv/versions/2.5.1/lib/ruby/gems/2.5.0 directory.

It appears the /usr/lib/rbenv/versions/ is owned by root:root
The errors are fixed when changing permissions:

sudo chown vagrant -R /usr/lib/rbenv/versions/
sudo chgrp vagrant -R /usr/lib/rbenv/versions/

[thomasleese]

There are some docs about this problem: https://docs.publishing.service.gov.uk/manual/gem-file-permission-errors.html

Although it suggests an alternative solution, maybe the docs need updating?

[ChrisBAshton]

FWIW, I think I had to do the same thing (sudo chown vagrant -R /usr/lib/rbenv/versions/).

[tijmenb]

Let's close this, as we are focusing our development efforts on https://github.com/alphagov/govuk-docker.