DevOps & Infrastructure

Systemd Service Management

Create and manage Linux systemd service units to run applications as daemons with automatic restarts, logging, and dependency management.

Claude Code Codex Cursor Gemini CLI

Overview

Systemd is the init system and service manager for modern Linux distributions. Creating proper systemd unit files is essential for running applications as background services with automatic restarts, proper logging, resource limits, and boot-time startup. AI agents can generate production-ready unit files that handle all the edge cases most developers forget.

AI coding agents excel at generating systemd service files because they understand the full range of directives: restart policies, sandboxing options, resource limits, environment files, dependency ordering, and socket activation. Instead of copying a basic unit file from Stack Overflow, you can describe your requirements and get a hardened service configuration with proper security sandboxing, memory limits, and graceful shutdown handling.

This skill covers creating service units, timer units for scheduled tasks (replacing cron), socket-activated services, and multi-service setups with proper dependency chains. Your AI agent can also troubleshoot failed services by reading journalctl logs and analyzing the unit file for common misconfigurations.

Who Is This For?

System administrators creating service units for Node.js, Python, or Go applications
DevOps engineers setting up systemd timers as modern cron replacements
Developers configuring automatic restart policies and resource limits
Teams troubleshooting failed systemd services with journalctl log analysis

Installation

Setup for Claude Code

systemd is built into Linux
Claude Code creates unit files in /etc/systemd/system/ and runs systemctl commands

Configuration

# /etc/systemd/system/myapp.service
[Unit]
Description=My Application
After=network.target

[Service]
Type=simple
User=www-data
WorkingDirectory=/opt/myapp
ExecStart=/usr/bin/node dist/server.js
Restart=on-failure
RestartSec=5
EnvironmentFile=/opt/myapp/.env
MemoryMax=512M
CPUQuota=80%

[Install]
WantedBy=multi-user.target