NixOS Virtualbox Dev VM¶

You can use the official NixOS VirtualBox appliance if you want to run the project on our preferred production system NixOS.

This will guide you from downloading the appliance to a running application.

Note

You need VirtualBox installed on your system.

Note

If you want to run the application elsewhere, please look at Development Quick Start

VM Preparation¶

The following code snippets are written for ekklesia-portal but also work for ekklesia-voting when you change the project name.

Get the NixOS 21.11 VirtualBox appliance and follow the instructions there to import and start the VM. Enable clipboard integration in the VirtualBox menu bar with Devices -> Shared Clipboard -> Host to Guest so you can copy-paste longer commands from here.
In the VM, open konsole (press Alt-F1 and type konsole) and run the following commands as the demo user.

Add the edemocracy binary cache:

# password for sudo is `demo`
nix-shell -p cachix --run "sudo cachix use edemocracy"
# ignore the instructions shown by cachix, we do that later.

Edit /etc/nixos/configuration.nix (using sudo nano /etc/nixos/configuration.nix, for example) and change the imports line to:

# no commas between list items in Nix!
imports = [
  <nixpkgs/nixos/modules/installer/virtualbox-demo.nix>
  ./ekklesia_dev.nix
];

Fetch our recommended NixOS configuration with curl and put it in /etc/nixos (you can also download it here):

curl -O https://raw.githubusercontent.com/edemocracy/ekklesia/master/docs/development/ekklesia_dev.nix
sudo mv ekklesia_dev.nix /etc/nixos

Rebuild the NixOS system to activate our configuration and reload the current shell:
```
sudo nixos-rebuild switch
exec bash
```

Tell direnv where nix-direnv is located:

echo "source /run/current-system/sw/share/nix-direnv/direnvrc" > ~/.direnvrc

Setting up the Project¶

Clone the repository and change to the checked out directory:

git clone https://github.com/edemocracy/ekklesia-portal
cd ekklesia-portal

Tell direnv to use nix-direnv whenever you enter the directory. nix-direnv starts building immediately which may take a while:
```
echo "use nix" > .envrc
direnv allow
# direnv runs nix-build now
```
Compile translations and CSS (look at dodo.py to see what this does):
```
doit
```

Create a config file named config.yml using the config template from src/ekklesia_portal/config.example.yml. Under database, you have to change uri. Under app, change force_ssl to false and insecure_development_mode to true. The beginning of the config file should look like this:

database:
    uri: "postgresql+psycopg2:///ekklesia_portal?host=/run/postgresql"
    fts_language: 'english'
app:
    instance_name: my_ekklesia_portal
    insecure_development_mode: true
    login_visible: true
    force_ssl: false

Initialize the dev database with a custom config file:
```
python tests/create_test_db.py -c config.yml
```

The development server can be run with a custom config file by executing:

python src/ekklesia_portal/runserver.py --debug -c config.yml 2>&1 | eliot-tree -l0

Setting up Tests¶

Add an environment variable to .envrc to configure the test database URL:

echo 'export EKKLESIA_PORTAL_TEST_DB_URL="postgresql+psycopg2:///test_ekklesia_portal?host=/run/postgresql"' >> .envrc
direnv allow

Populate the test database:
```
python tests/create_test_db.py
```
Run all tests:
```
pytest
```