# Vikunja with Tailscale Integration

![Vikunja with Tailscale](https://selfh.st/vikunja/logo.png "Vikunja")

This project sets up a Vikunja instance with Tailscale VPN integration using Docker Compose. It creates a secure, private network connection for your Vikunja instance using Tailscale.

## Prerequisites

- Docker and Docker Compose installed on your system
- A Tailscale account and auth key (get one from https://login.tailscale.com/admin/authkeys)
- Basic understanding of Docker and networking concepts

## Project Structure
```
ts-vikunja/
├── docker-compose.yml
├── tailscale/
│   ├── tailscale-data/     # Persistent Tailscale state
│   └── config/             # Tailscale configuration files
└── vikunja/
    └── config/             # Vikunja configuration files
```

## Setup Instructions

1. **Clone the Repository**
   ```bash
   git clone https://gitea.example.com/org/ts-vikunja
   cd ts-vikunja
   ```
2. Create Required Directories
    ```bash
    mkdir -p tailscale/tailscale-data
    ```
3. Configure Tailscale
    - Make sure `TS_AUTHKEY` and `TS_LOGIN_SERVER` are set in your environment (or a local .env file) before running docker compose.
    - Optionally, update the file in `tailscale/config/serve.json` if you need specific Tailscale serve configurations
        - CAUTION: Changing `"${TS_CERT_DOMAIN}:443": false` to `true` will expose the service to the internet

4. Configure Vikunja
    - See the [documentation]({{service_docs}}) for configuration options

5. Start the Services
    ```bash
    docker compose up -d
    ```

6. Wait for Certificate to propagate [~2m] 

7. Login 
    - After starting the services your service should be available via tailnet at https://vikunja.{{YOUR_TAILNET_DOMAIN}}.ts.net ie https://vikunja.tail12345.ts.net/

## Services

### vikunja-ts (Tailscale)

- Runs Tailscale VPN client
- Image: tailscale/tailscale:latest
- Container name: vikunja-ts
- Hostname: vikunja
- Requires NET_ADMIN and SYS_MODULE capabilities
- Persists state in ./tailscale/tailscale-data
- Uses configuration from ./tailscale/config

### vikunja

- Depends on vikunja-ts service

## Usage

- After starting the services your service should be available via tailnet at `https://vikunja.{{YOUR_TAILNET_DOMAIN}}.ts.net` ie `https://vikunja.tail12345.ts.net/`
- To manually get the Tailscale IP/hostname of your container:
    ```bash
    docker logs vikunja-ts
    ```
    Look for the Tailscale IP address in the logs.

## Optional Features

- Uncomment and adjust the ports mapping if you need direct access (without Tailscale):
    ```yaml
    ports:
    - 3000:3000
    ```
- Stopping the Services
    ```bash
    docker compose down
    ```

## Troubleshooting
- Check container logs:
    ```bash
    docker logs vikunja-ts
    docker logs vikunja
    ```
- Ensure your Tailscale auth key is valid and not expired
- Verify the configuration files have proper permissions
- Make sure required directories exist before starting

## Notes
- The Vikunja service uses the Tailscale service's network stack via `network_mode: service:vikunja-ts`
- Direct port mapping is disabled by default as Tailscale handles the networking
- Services restart automatically unless explicitly stopped
- For more information:
    - Tailscale documentation: https://tailscale.com/kb/
    - Vikunja [documentation]({{service_docs}})
    - Vikunja [repository]({{service_repo}})
    - Vikunja [linuxserve.io]({{service_lcsr}})
## Tailscale Serve Configuration

This repo includes two serve configuration files:

- `tailscale/config/serve.json` — Default (recommended for Tailscale with MagicDNS + certs)
- `tailscale/config/serve.headscale.json` — For Headscale or Tailscale without certs (HTTP only)

### How to use

**Tailscale (default):**
- No changes needed. The default `serve.json` will be used.

**Headscale:**
1. Copy `serve.headscale.json` over `serve.json`:
   ```bash
   cp tailscale/config/serve.headscale.json tailscale/config/serve.json
   ```
2. Update the hostname in `serve.json` to match your service.

After changing the serve config, restart the sidecar:
```bash
docker compose restart <service>-ts
```

## Configuration

### Environment Variables

Copy `.env.example` to `.env` and fill in your values:

```bash
cp .env.example .env
```

### Tailscale Serve Configuration

This repo ships with two serve configuration options:

| File | Use Case | Description |
|------|----------|-------------|
| `tailscale/config/serve.json` | Tailscale (default) | Supports both HTTP and HTTPS when MagicDNS + certs are configured |
| `tailscale/config/serve.headscale.json` | Headscale / no certs | HTTP-only on port 80 |

**To switch to Headscale mode:**

```bash
cp tailscale/config/serve.headscale.json tailscale/config/serve.json
docker compose restart vikunja-ts
```

Update the hostname in `serve.headscale.json` to match your service.