Root bundle folders in Docker break folder ignore paths

[nevumx]

Mounting a bundle folder on the root of a regal docker container breaks ignore paths that are folder-wide.

For example, running regal in docker like:

docker run \
    --rm \
    --mount "type=bind,src=${PWD}/policies,dst=/policies,readonly" \
    --mount "type=bind,src=${PWD}/.regal,dst=/.regal,readonly" \
    ghcr.io/styrainc/regal:latest \
    lint \
    /policies

Will not allow folder rules like:

rules:
  performance:
    non-loop-expression:
      ignore:
        files:
          - polices/role/*

but will allow file rules like:

rules:
  performance:
    non-loop-expression:
      ignore:
        files:
          - some_file.rego

A workaround is to use a nonroot folder like:

docker run \
    --rm \
    --mount "type=bind,src=${PWD}/policies,dst=/home/nonroot/policies,readonly" \
    --mount "type=bind,src=${PWD}/.regal,dst=/home/nonroot/.regal,readonly" \
    ghcr.io/styrainc/regal:latest \
    lint \
    /home/nonroot/policies