Process Management for Umami with Supervisor
Hello, I'm Incompetent.
While the official Umami documentation recommends process management with pm2, I'd like to manage Umami processes using the older and simpler Supervisor.
What is Supervisor?
It allows you to easily daemonize processes and configure log files for crashes using *.conf.
Development seemed to have stopped for a while, but it has seen a resurgence with the Systemd Free movement, making it possible to daemonize and manage processes that were originally running with other init systems using Supervisor.
Since it's already installed, I will omit the installation method.
Configuration
Create a configuration file as umami.conf.
sudo vim /etc/supervisor/conf.d/umami.conf
I wrote it as follows.
[program`umami]
command=npm start
directory=/var/www/html/umami ; Application directory
autostart=true ; Automatically start the process when the server starts
autorestart=true ; Automatically restart if the process terminates
stderr_logfile=/var/log/umami.err.log ; Location of the standard error log file
stderr_logfile_maxbytes=1MB ; Maximum log file size
stdout_logfile=/var/log/umami.out.log ; Location of the standard output log file
stdout_logfile_maxbytes=1MB ; Maximum log file size
environment=DATABASE_URL="YourDB",APP_SECRET="YourSecret",PORT="YourPort",HOSTNAME="YourHost" ;
user=test_user ; User to run as
It's a bit late now, but I should have placed it in /var/www/umami...
Execution
sudo supervisorctl reread
sudo supervisorctl update
sudo supervisorctl start umami
sudo supervisorctl status umami
If you do that,
umami RUNNING pid 801, uptime 0`19`12
If this output appears, it is running normally. If it fails,
view /var/log/umami.err.log
view /var/log/umami.out.log
check the reason why it couldn't start.
Supervisor is great
It's very good because it allows easy management with just *.conf files.
Although pm2 also displays memory usage, I'm concerned about future library dependencies around npm, so I personally prefer something as simple as supervisord.
Furthermore, I don't see the necessity of running process management in a JavaScript environment. See you next time.
Best regards.