Unable to create files in workspace

Summary

Molecule requires the ability to create a cache directory (.cache) in the workspace dir (/opt/app-root/src) to operate properly. Currently, the user default does not have ownership of the folder (despite having ownership of the parent folder). This causes molecule to fail as it cannot create a cache directory.

Steps to reproduce

run molecule test with any role or collection loaded into the image.

What is the current bug behavior?

molecule will error

File "/opt/app-root/lib/python3.6/site-packages/molecule/scenario.py", line 101, in __init__
    self._setup()
  File "/opt/app-root/lib/python3.6/site-packages/molecule/scenario.py", line 270, in _setup
    if not os.path.isdir(self.inventory_directory):
  File "/opt/app-root/lib/python3.6/site-packages/molecule/scenario.py", line 190, in inventory_directory
    return os.path.join(self.ephemeral_directory, "inventory")
  File "/opt/app-root/lib/python3.6/site-packages/molecule/scenario.py", line 166, in ephemeral_directory
    path = ephemeral_directory(project_scenario_directory)
  File "/opt/app-root/lib/python3.6/site-packages/molecule/scenario.py", line 290, in ephemeral_directory
    Path(d).mkdir(mode=0o700, parents=True, exist_ok=True)
  File "/usr/lib64/python3.6/pathlib.py", line 1252, in mkdir
    self.parent.mkdir(parents=True, exist_ok=True)
  File "/usr/lib64/python3.6/pathlib.py", line 1252, in mkdir
    self.parent.mkdir(parents=True, exist_ok=True)
  File "/usr/lib64/python3.6/pathlib.py", line 1252, in mkdir
    self.parent.mkdir(parents=True, exist_ok=True)
  File "/usr/lib64/python3.6/pathlib.py", line 1248, in mkdir
    self._accessor.mkdir(self, mode)
  File "/usr/lib64/python3.6/pathlib.py", line 387, in wrapped
    return strfunc(str(pathobj), *args)
PermissionError: [Errno 13] Permission denied: '/opt/app-root/src/.cache'

What is the expected correct behavior?

molecule should be able to run create an ephemeral cache dir and manage it in /opt/app-root/src.

Relevant logs and/or screenshots

File "/opt/app-root/lib/python3.6/site-packages/molecule/scenario.py", line 101, in __init__
    self._setup()
  File "/opt/app-root/lib/python3.6/site-packages/molecule/scenario.py", line 270, in _setup
    if not os.path.isdir(self.inventory_directory):
  File "/opt/app-root/lib/python3.6/site-packages/molecule/scenario.py", line 190, in inventory_directory
    return os.path.join(self.ephemeral_directory, "inventory")
  File "/opt/app-root/lib/python3.6/site-packages/molecule/scenario.py", line 166, in ephemeral_directory
    path = ephemeral_directory(project_scenario_directory)
  File "/opt/app-root/lib/python3.6/site-packages/molecule/scenario.py", line 290, in ephemeral_directory
    Path(d).mkdir(mode=0o700, parents=True, exist_ok=True)
  File "/usr/lib64/python3.6/pathlib.py", line 1252, in mkdir
    self.parent.mkdir(parents=True, exist_ok=True)
  File "/usr/lib64/python3.6/pathlib.py", line 1252, in mkdir
    self.parent.mkdir(parents=True, exist_ok=True)
  File "/usr/lib64/python3.6/pathlib.py", line 1252, in mkdir
    self.parent.mkdir(parents=True, exist_ok=True)
  File "/usr/lib64/python3.6/pathlib.py", line 1248, in mkdir
    self._accessor.mkdir(self, mode)
  File "/usr/lib64/python3.6/pathlib.py", line 387, in wrapped
    return strfunc(str(pathobj), *args)
PermissionError: [Errno 13] Permission denied: '/opt/app-root/src/.cache'

Possible fixes

the user (default) is given ownership of the /opt/app-root/src folder. It already has ownership of /opt/app-root and the fact that /src folder isn't included is likely an oversite.

Defintion of Done

• Bug has been identified and corrected within the container

/cc @ironbank-notifications/bug