For `docker-compose`, you need to create a `.env` file: `touch .env`. An example is available: `.env.sample`.
The settings of the Django server is based on the `backend/.env` file. You can copy the sample file
(`cp backend/.env.sample backend/.env`) and fill in the variables.
You can of course customize more of the Django server settings in the `settings` module of metagenedb.
Now we will go through the different parts.
#### Secret key
This is the Django `SECRET_KEY` and you need to specify your own. For instance you can use the command
`openssl rand -base64 32` to generate one by command line.
#### Create your own DB on postgresql
The following variables have the default values:
```bash
DATABASE_HOST=postgresql
DATABASE_USER=postgres
DATABASE_NAME=postgres
DATABASE_PASSWORD=""
DATABASE_PORT=5432
```
It will work if you leave it as it is but you might face security issues having a by default database
without credentials.
What we recommand is to create your own database. Here is described one way to do it. To do that you need to
first run the db image and identify its running ID:
```bash
khillion:~/metagenedb $ docker-compose up postgresql -d# This runs only the postgresql service of your docker-compose in detached mode. You can also detached from you running screen using Ctrl+Z
Creating postgresql ... done
khillion:~/metagenedb $ docker ps # List your running docker images
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
5002f210f9d8 postgres:11.4-alpine "docker-entrypoint.s…" 1 minute ago Up 1 minute 0.0.0.0:5433->5432/tcp postgresql
```
Now that you have the `CONTAINER ID`, here `5002f210f9d8` you can run a `bash` terminal in this container and
