Unable to open analytics.yml error while running Puppet Development Kit in Docker as a non-root user

You try to run a unit test in Puppet Development Kit by running PDK test unit in the PDK Docker container as a non-root user. It fails with an unable to open analytics.yml error.

Error messages

/opt/puppetlabs/pdk/private/ruby/2.5.9/lib/ruby/gems/2.5.0/gems/pdk-2.3.0/lib/pdk/config/namespace.rb:331:in `rescue in save_data': Unable to open /.config/puppet/analytics.yml for writing (PDK::Config::LoadError)

Version and installation information

PDK version: 2.3.0
Installation type: Docker container image

Solution

PDK is designed to be run as the root user in a Docker container, so analytics.yml is normally written to the root directory. To run it as a non-root user, set the HOME variable as writable by UID 1000.

For example:

docker run -u 1000:1000 -e HOME=/project --workdir /project --rm -v $(pwd):/project puppet/pdk test unit