Question

Upstart job to systemd for ubuntu 16.04

Posted July 9, 2017 3.8k views
Linux CommandsUbuntu 16.04

This is as simple upstart job which we wrote for starting our application but I am unable to find any good solution to make it for systemD.. If I may create a simple Start and Post Exec command base file, It just gave me errors and nothing work..

I have only hurdles with those basic values as from start to setgid root? how can we write it in SystemD service?

description  "evercam_media"
start on filesystem or runlevel [2345]
stop on runlevel [!2345]
limit nofile 1000000 1000000

respawn
chdir /
setuid root
setgid root

env HOME=/home/root
env LANG=en_US.UTF-8
env LANGUAGE=en_US:en
env LS_ALL=en_US.UTF-8
env ERL_MAX_PORTS=10240


exec watch -n1 '/usr/local/bin/run_evercam_media.sh'

post-stop exec sudo pkill beam

Any help will be wonderful, i have been struggling so long on this

1 comment

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1 answer

This should be a good starting point:

[Unit]
Description=evercam media
After=network-online.target

[Service]
Restart=on-failure

User=root
Group=root

Environment=HOME=/home/root LANG=en_US.UTF-8 LANGUAGE=en_US:en LS_ALL=en_US.UTF-8 ERL_MAX_PORTS=10240

WorkingDirectory=/
ExecStart=/usr/bin/watch -n1 '/usr/local/bin/run_evercam_media.sh'
ExecStopPost=/bin/pkill beam

LimitNOFILE=1000000

[Install]
WantedBy=multi-user.target

The main difference is that systemd requires absolute paths. I noticed that the service is running as root. I would recommend looking into having it run as a regular user unless absolutely necessary :)

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