add systemd service example

examples/systemd-service.md

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+---
+title: How to create a Systemd service
+description: How to create a Systemd service on Ubuntu 22.04
+published: true
+date: 2023-06-26T13:28:49.025Z
+tags: docker, ubuntu, installation, containerization, container, linux, server, ubuntu, systemd, service
+editor: markdown
+dateCreated: 2023-06-26T13:28:49.025Z
+---
+
+# How to create a Systemd service on Ubuntu 22.04
+
+This guide provides step-by-step instructions for creating a Systemd service on Ubuntu, specifically tested on version 22.04.
+
+## Prerequisites
+
+- A system running Ubuntu 22.04
+- A user account with sudo privileges
+- An internet connection
+
+## Get Started
+
+- Begin by creating a new file for your service unit. Open a terminal and run the following command:
+
+```bash
+sudo nano /etc/systemd/system/my-service.service
+```
+
+This command will open a new file in the nano text editor. You can replace `my-service` with the name of your service.
+
+- Next, you need to define the service unit. Add the following lines to the file:
+
+```bash
+[Unit]
+Description=<name>
+
+[Service]
+ExecStart=<command>
+WorkingDirectory=<directory>
+Restart=always
+User=root
+
+[Install]
+WantedBy=multi-user.target
+```
+
+- Now we can enable the service to run on startup. Run the following command in the terminal:
+
+```bash
+sudo systemctl enable my-service
+```
+
+- Finally, you can start the service by running the following command:
+
+```bash
+sudo systemctl start my-service
+```
+
+- You can check the status of the service by running the following command:
+
+```bash
+sudo systemctl status my-service
+```
+
+## Finished
+
+You have successfully created a Systemd service on Ubuntu 22.04. You can now manage the service using the `systemctl` command.
+
+## Logs
+
+You can get logs from the service by running the following command:
+
+```bash
+sudo journalctl -u my-service
+```