# TISBackup

This is the repository of the TISBackup project, licensed under GPLv3.

TISBackup is a python script to backup servers.

It runs at regular intervals to retrieve different data types on remote hosts
such as database dumps, files, virtual machine images and metadata.

## Install using Compose

Clone that repository and build the pod image using the provided `Dockerfile`

```bash
docker build . -t tisbackup:latest
```

In another folder, create subfolders as following

```bash
mkdir -p /var/tisbackup/{backup/log,config,ssh}/
```

Expected structure
```
/var/tisbackup/
    └─backup/                   <-- backup location
    └─config/
      ├── tisbackup-config.ini  <-- backups config
      └── tisbackup_gui.ini     <-- tisbackup config
    └─ssh/
      ├── id_ed25519            <-- SSH Private Key (Ed25519 recommended)
      └── id_ed25519.pub        <-- SSH Public Key
    compose.yaml
```

Adapt the compose.yml file to suits your needs, one pod act as the WebUI front end and the other as the crond scheduler

```yaml
services:
  tisbackup_gui:
    container_name: tisbackup_gui
    image: "tisbackup:latest"
    build: .
    volumes:
      - ./config/:/etc/tis/
      - ./backup/:/backup/
      - /etc/timezone:/etc/timezone:ro
      - /etc/localtime:/etc/localtime:ro
    environment:
      # SECURITY: Set a unique secret key for Flask session security
      # Generate with: python3 -c "import secrets; print(secrets.token_hex(32))"
      - TISBACKUP_SECRET_KEY=your-secret-key-here-change-me
    restart: unless-stopped
    ports:
      - 9980:8080

  tisbackup_cron:
    container_name: tisbackup_cron
    image: "tisbackup:latest"
    build: .
    volumes:
      - ./config/:/etc/tis/
      - ./ssh/:/config_ssh/
      - ./backup/:/backup/
      - /etc/timezone:/etc/timezone:ro
      - /etc/localtime:/etc/localtime:ro
    restart: always
    command: "/bin/bash /opt/tisbackup/cron.sh"

```

## Configuration

### SSH Keys

 * **Generate SSH keys** (Ed25519 recommended):
   ```bash
   # Ed25519 (most secure, recommended)
   ssh-keygen -t ed25519 -f ./ssh/id_ed25519 -C "tisbackup@yourserver"

   # Or ECDSA (also secure)
   ssh-keygen -t ecdsa -b 521 -f ./ssh/id_ecdsa -C "tisbackup@yourserver"

   # Or RSA (legacy, minimum 2048 bits)
   ssh-keygen -t rsa -b 4096 -f ./ssh/id_rsa -C "tisbackup@yourserver"
   ```
   **⚠️ Note:** DSA keys are no longer supported due to security vulnerabilities

 * Copy public key to remote servers:
   ```bash
   ssh-copy-id -i ./ssh/id_ed25519.pub root@remote-server
   ```

### Configuration Files

 * Setup config files in the `./config` directory

 * **SECURITY**: Generate and set a secure Flask secret key:
   ```bash
   # Generate a secure random secret key
   python3 -c "import secrets; print(secrets.token_hex(32))"
   ```
   Then add it to your `compose.yml` as the `TISBACKUP_SECRET_KEY` environment variable

**tisbackup-config.ini**

```ini
[global]
backup_base_dir = /backup/

# backup retention in days
backup_retention_time=90

# for nagios check in hours
maximum_backup_age=30

[srvads-poudlard-samba]
type=rsync+ssh
server_name=srvads.poudlard.lan
remote_dir=/var/lib/samba/
compression=True
;exclude_list="/proc/**","/sys/**","/dev/**"
# Use Ed25519 key (recommended), or ECDSA/RSA (DSA not supported)
private_key=/config_ssh/id_ed25519
ssh_port = 22
```

**tisbackup_gui.ini**
```ini
[general]
config_tisbackup= /etc/tis/tisbackup-config.ini
sections=
ADMIN_EMAIL=josebove@internet.fr
base_config_dir= /etc/tis/
backup_base_dir=/backup/
```

Run!
```bash
docker compose up -d
```

## NGINX reverse-proxy

Sample config file

```nginx
server {
  listen 443 ssl http2;
  # Remove '#' in the next line to enable IPv6
  # listen [::]:443 ssl http2;
  server_name tisbackup.poudlard.lan;

  ssl_certificate /etc/letsencrypt/live/tisbackup.poudlard.lan/fullchain.pem; # managed by Certbot
  ssl_certificate_key /etc/letsencrypt/live/tisbackup.poudlard.lan/privkey.pem; # managed by Certbot


  location / {
    proxy_set_header   X-Real-IP $remote_addr;
    proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header   Host $host;
    proxy_pass         http://localhost:9980/;
    proxy_http_version 1.1;
    proxy_set_header   Upgrade $http_upgrade;
    proxy_set_header   Connection "upgrade";
  }
}
```



## About

[Tranquil IT](contact_at_tranquil_it) is the original author of TISBackup.

The documentation is provided under the license CC-BY-SA and can be found
on [readthedoc](https://tisbackup.readthedocs.io/en/latest/index.html).