Changing the group or permissions on the consumption directory can fail,
especially on network-mounted directories. If it fails, don't exit the
consumer, but rather output a warning on what the user has to do.
This is related to (and should close) issue #102.
This commit adds a `Dockerfile` to the root of the project, accompanied
by a `docker-compose.yml.example` for simplified deployment. The
`Dockerfile` is agnostic to whether it will be the webserver, the
consumer, or if it is run for a one-off command (i.e. creation of a
superuser, migration of the database, document export, ...).
The containers entrypoint is the `scripts/docker-entrypoint.sh` script.
This script verifies that the required permissions are set, remaps the
default users and/or groups id if required and installs additional
languages if the user wishes to.
After initialization, it analyzes the command the user supplied:
- If the command starts with a slash, it is expected that the user
wants to execute a binary file and the command will be executed
without further intervention. (Using `exec` to effectively replace
the started shell-script and not have any reaping-issues.)
- If the command does not start with a slash, the command will be
passed directly to the `manage.py` script without further
modification. (Again using `exec`.)
The default command is set to `--help`.
If the user wants to execute a command that is not meant for `manage.py`
but doesn't start with a slash, the Docker `--entrypoint` parameter can
be used to circumvent the mechanics of `docker-entrypoint.sh`.
Further information can be found in `docs/setup.rst` and in
`docs/migrating.rst`.
For additional convenience, a `Dockerfile` has been added to the `docs/`
directory which allows for easy building and serving of the
documentation. This is documented in `docs/requirements.rst`.
Rename exporter to export and fixt some debugging
Account for files not matching the sender/title pattern
Added a safety note
Wrong regex on the name parser
Renamed the command to something slightly less ambiguous
