custom-boot-script.md

custom boot script

• edit file /scripts/custom-boot-script

#!/bin/bash

echo "$(date): custom boot" > /root/custom-boot.log

# ...

echo "$(date): more log" >> /root/custom-boot.log

• make it executable

chmod +x /scripts/custom-boot-script

• edit unit file /lib/systemd/system/custom-boot.service

[Unit]
Description=Custom boot script service
Requires=docker.service
After=docker.service

[Service]
ExecStart=/scripts/custom-boot-script
Type=oneshot
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target

• install

systemctl daemon-reload
systemctl enable custom-boot.service