# Systemd

Systemd is a system and service manager for Linux that provides a standardized way to define and control how services start, stop, and behave on boot.

For Lunar, systemd may be used to ensure that the application is reliably managed, automatically started at boot, and cleanly shut down or reloaded when needed.

Here's a simple systemd unit file that will run `lunar` in a resilient way.

```ini
[Unit]
Description=Lunar CI Agent
After=network.target

[Service]
Type=simple
WorkingDirectory=/home/ubuntu
ExecStart=/usr/local/bin/lunar
EnvironmentFile=/etc/lunar.env
Restart=always
RestartSec=5

[Install]
WantedBy=multi-user.target
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs-lunar.earthly.dev/install/hub/systemd.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.