How do you fix the supervisor error?

Question

Python

on a VPS with ubuntu 20.04 LTS (GNU/Linux 5.4.0-29-generic x86_64) with python3.8 version I'm trying to install supervisor following the instructions: https://www.digitalocean.com/community/tutorials/h...

created a file , which put here: /etc/supervisor/conf.d
File content:
[program:besik]
command=python3.8 /root/besik.py
autostart=true
autorestart=true
stderr_logfile=/root/log/besik.err.log
stdout_logfile=/root/log/besik.out.log

configuration file itself:
[unix_http_server]
file=/var/run/supervisor.sock ; (the path to the socket file)
chmod=0700 ; sockef file mode (default 0700)

[supervisord]
logfile=/var/log/supervisor/supervisord.log ; (main log file;default $CWD/supervisord.log)
pidfile=/var/run/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
childlogdir=/var/log/supervisor ; ('AUTO' child log dir, default $TEMP)

; the below section must remain in the config file for RPC
; (supervisorctl/web interface) to work, additional interfaces may be
; added by defining them in separate rpcinterface: sections
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface

[supervisorctl]
serverurl= unix:///var/run/supervisor.sock ; use a unix:// URL for a unix socket

; The [include] section can just contain the "files" setting. This
; setting can list multiple files (separated by whitespace or
; newlines). It can also contain wildcards. The filenames are
; interpreted as relative to this file. Included files *cannot*
; include files themselves.

[include]
files = /etc/supervisor/conf.d/*.conf

I try to start and get:
[email protected]:~# service supervisor restart
Failed to restart supervisor.service: Unit supervisor.service is masked.
[email protected]:~# supervisorctl reread
error: , [Errno 2] No such file or directory: file: /usr/local/lib/python3.8/dist-packages/supervisor/xmlrpc.py line: 560
[email protected]: ~# supervisorctl update
error: , [Errno 2] No such file or directory: file: /usr/local/lib/python3.8/dist-packages/supervisor/xmlrpc.py line: 560
[email protected]:~#

Answer 1

Offhand, the first and perhaps the most blatant mistake:
command=python3.8 /root/besik.py
Correct:
command=/usr/bin/python3 /root/besik.py
I recommend adding to this unit (as an example, change the values ​​​​30, 10 according to your needs):

startsecs = 30
startretries=10
stopasgroup = true
priority = 999 (приоритет очерёдности загрузки процессов. По умолчанию 999 - авто)
stdout_logfile_maxbytes = 50MB - размер лог-файла (у меня 50, вы можете, как вам нужно), иначе будет писать файл, раздувая его до бесконечности и когда-нибудь увидите сообщение, что места нет!

Configuration File:
I hope you have created a complete configuration file after installing Supervisor, as by default, after installation truncated only:

sudo sh -c 'echo_supervisord_conf > /etc/supervisor/supervisord.conf'

If not, then be sure to do and reconfigure the config !!!
Now according to the config, in the section:
[supervisord]

childlogdir=/var/log/supervisor ; ('AUTO' child log dir, default $TEMP

- not necessary. You can comment out - ;
And vice versa - uncomment (remove the sign - ; at the beginning of the line ) in the lines:

nodaemon=true               ; (start in foreground if true;default false)
minfds=1024                  ; (min. avail startup file descriptors;default 1024)
minprocs=200

and obligatory in:
user=
add:
user=root
or, if this entry ;user=roothas already been, but was commented out, then remove the comment - ;
Well, after all the manipulations, perform:

sudo supervisorctl reread; sudo supervisorctl update; sudo systemctl restart supervisor.service

Here How to run a python script on ubuntu so that it does not ... you can look in detail at the configs, where I described everything in detail ...

Answer 2

Did not help. All the same.