Ticket #135: Introduction to Systemd and Lab 2.1 Tasks - SupaHotBall/OE2-Group-D GitHub Wiki

Task

  • Lab 2.1 tasks completed and documented.
  • Relevant systemd commands documented for service management.
  • Team collaboration (if applicable) confirmed and documented.

Steps Taken

Logging into server and running pstree command

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Running command systemctl list-unit-files --type=target

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Creating the shell script hello.sh using the code below


#!/bin/bash
while $(sleep 30);
do
    echo "Hello, systemd world"
done

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Make the file executable using the command sudo chmod +x ~/hello.sh

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Create unit file named hello.service in /etc/systemd/system using the code below


[Unit]
Description=Hello world service
After=systemd-user-sessions.service

[Service]
SyslogIdentifier=HelloWorldService
Type=simple
ExecStart=/home/$(whoami)/hello.sh

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Verifying that systemd recognizes the unit which was created, using the command systemctl list-unit-files | grep hello.service

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Starting the service using the command systemctl start hello.service

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Check the service is running using the command systemctl status hello.service

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See the logged output using the command journalctl -u hello -e

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Challenges

The service failed to start initially because the execstart line in the hello.service file had the incorrect path. After changing to the correct path, the service started.

External Resources

N/A

Ticket Reference

https://rt.dataraster.com/Ticket/Display.html?id=135