Set location for meda files on webserver

[mikemhenry]

Trace back here:

---------------------------------------------------------------------------
PermissionError                           Traceback (most recent call last)
/tmp/ipykernel_31131/1487240485.py in <module>
     12     )
     13 
---> 14     value_object_csv = models.FileValue.from_string(
     15                 "molWeight_data.csv", challenge=challenge
     16     )

/var/app/venv/staging-LQM1lest/lib/python3.8/site-packages/core/models.py in from_string(cls, filepath, challenge, evaluation)
    555         with open(filepath, "rb") as fp:
    556             instance.value.save(filename, File(fp))
--> 557         filecache.preserve_local_copy(instance.value, filepath)
    558         return instance

/var/app/venv/staging-LQM1lest/lib/python3.8/site-packages/core/filecache.py in preserve_local_copy(field_file, filepath)
     43     at filepath into the local cache path.
     44     """
---> 45     local_path = _local_cache_path(field_file)
     46     if not os.path.exists(local_path):
     47         logger.debug("Copying local file %s into %s", filepath, local_path)

/var/app/venv/staging-LQM1lest/lib/python3.8/site-packages/core/filecache.py in _local_cache_path(field_file)
     16 def _local_cache_path(field_file):
     17     local_path = os.path.join(settings.MEDIA_ROOT, field_file.name)
---> 18     os.makedirs(os.path.dirname(local_path), exist_ok=True)
     19     return local_path
     20 

/usr/lib64/python3.8/os.py in makedirs(name, mode, exist_ok)
    211     if head and tail and not path.exists(head):
    212         try:
--> 213             makedirs(head, exist_ok=exist_ok)
    214         except FileExistsError:
    215             # Defeats race condition when another thread created the path

/usr/lib64/python3.8/os.py in makedirs(name, mode, exist_ok)
    211     if head and tail and not path.exists(head):
    212         try:
--> 213             makedirs(head, exist_ok=exist_ok)
    214         except FileExistsError:
    215             # Defeats race condition when another thread created the path

/usr/lib64/python3.8/os.py in makedirs(name, mode, exist_ok)
    211     if head and tail and not path.exists(head):
    212         try:
--> 213             makedirs(head, exist_ok=exist_ok)
    214         except FileExistsError:
    215             # Defeats race condition when another thread created the path

/usr/lib64/python3.8/os.py in makedirs(name, mode, exist_ok)
    221             return
    222     try:
--> 223         mkdir(name, mode)
    224     except OSError:
    225         # Cannot rely on checking for EEXIST, since the operating system

PermissionError: [Errno 13] Permission denied: '/var/app/venv/staging-LQM1lest/lib/python3.8/site-packages/media'

tl;dr need to

1. Decide if we need the media file to be persistent
2. Make sure we have the permissions correct ie

sudo mkdir /var/app/venv/staging-LQM1lest/lib/python3.8/site-packages/media
sudo chmod g+s /var/app/venv/staging-LQM1lest/lib/python3.8/site-packages/media
sudo chown webapp:webapp /var/app/venv/staging-LQM1lest/lib/python3.8/site-packages/media

[mikemhenry]

@robbason this is just an issue for local "scratch" right? anything important ends up on S3?