Process Management for Umami with Supervisor

4 min

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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.

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