# System deployment

___

## Prerequisites

## Client

## Database

## Backend / Flask app

In order to not have complicated and error-prone copying manoevers a direct deployment from the repo is used using git.

### File structure

### Steps

1) Created a ssh-key for the user that does the installation on the server following the Github [instructions](https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent).
2) Deploy generated key to the Github user account.
3) In the shell, activate ssh-agent and add the key. For example:

```bash
eval ($ssh-agent)
ssh-add ~/.ssh/od_ed25519
```

4) Change to deployment folder

```bash
cd /var/www/brecal_test
```

5) Perform sparse checkout on the Flask server subtree

```bash
git clone -n git@github.com:puls200/brecal.git <target_folder>
cd <target_folder>
git sparse-checkout set --no-cone src/server
git checkout
```

6) Database credentials are stored outside the web root, we are using /var/www/secure. Here the file ```connection_data.json``` is placed, a different named copy for each instance.