Problems with systemctl in docker

README.md

Problem

My services doesn't restart, what could this be caused?

Steps to reproduce

1. docker build -t systemctl:latest .
2. docker run -ti systemctl:latest bash
3. systemctl status sleep <-- Dead inactive
4. systemctl restart sleep <-- Runs for 5 secs before it exists
5. systemctl status sleep <-- Dead inactive, and doesn't start up again.

Dockerfile

FROM ubuntu:22.04
RUN apt update && apt install -y systemctl
COPY sleep.service /etc/systemd/system/sleep.service
RUN systemctl enable sleep

CMD ["bash"]

sleep.service

[Unit]
Description=Sleep Service

[Service]
Restart=always
RestartSec=3

ExecStart=/bin/sleep 5

[Install]
WantedBy=default.target