How to run a process/binary on System startup/reboot in Ubuntu 20.04 LTS?

billyhanks1

1/23/23, 11:26 AM

I have an Ubuntu Server 20.04 LTS, and a binary file to run a process inside folder /home/dir1/dir2 called binary.

I believe there might be more than one methods to this but, if I could possibly know please, where and how is (are) the best way(s) to config so this binary/process so it can run automatically upon every time the system restarts?
Is there any way to ensure to keep this process/binary keeps running at all time? Meaning, the system keeps checking/monitoring this process, and if it gets killed or stopped manually, or by user or system error etc, it is restarted/re-run automatically?

Any suggestions with config examples would be much appreciated.

Cheers

0 + 0

lts

startup

process

20.04

Score:0

Ubuntu

Artur Meinild

1/23/23, 11:38 AM

Systemd can to this for you.

Here is an example of a typical unit file:

$ cat /etc/systemd/system/yourdaemon.service
[Unit]
Description=Your Daemon
After=network-online.target
Wants=network-online.target systemd-networkd-wait-online.service

[Service]
ExecStart=/path/to/daemon

[Install]
WantedBy=multi-user.target

And here is a unit file that has restart on failure enabled:

$ cat /etc/systemd/system/yourdaemon.service
[Unit]
Description=Your Daemon
After=network-online.target
Wants=network-online.target systemd-networkd-wait-online.service

StartLimitIntervalSec=500
StartLimitBurst=5

[Service]
Restart=on-failure
RestartSec=5s

ExecStart=/path/to/daemon

[Install]
WantedBy=multi-user.target

I think it's beyond the scope of this answer to go through everything in detail, but in short:

Create a unit file for the service (binary/process) you want to start.
Make sure to include the StartLimit and Restart options as indicated above.

Reference.

0 + 0

billyhanks1

1/25/23, 1:56 AM

Thanks mate, the 2nd unit did both for me. You're a gem. Cheers

venkatvb

10/25/23, 6:33 PM

For me, in EC2 AL2 instance - I had to enable the service via `systemctl`. `sudo systemctl enable yourdaemon`. You could check if it's enabled by `sudo systemctl is-enabled yourdaemon`

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: How to run a process/binary on System startup/reboot in Ubuntu 20.04 LTS?

TH: จะรันกระบวนการ / ไบนารีในการเริ่มต้นระบบ / รีบูตระบบใน Ubuntu 20.04 LTS ได้อย่างไร

RO: Cum să rulați un proces/binar la pornirea/repornirea sistemului în Ubuntu 20.04 LTS?

RU: Как запустить процесс/двоичный файл при запуске/перезагрузке системы в Ubuntu 20.04 LTS?

VI: Làm cách nào để chạy một quy trình/nhị phân khi khởi động/khởi động lại hệ thống trong Ubuntu 20.04 LTS?

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