Installing Supervisor on CentOS or OL9

sudo dnf install python3.12

sudo alternatives --install /usr/bin/python3 python3 /usr/bin/python3.12 2

sudo alternatives --config python3

vim /etc/yum.repos.d/my-add.repo

[Supervisor]

name=Supervisor for Oracle Linux 9 ($basearch)

baseurl=http://yum.oracle.com/repo/OracleLinux/OL9/developer/EPEL/x86_64

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle

gpgcheck=0

enabled=1

yum install supervisor ( for CentOS , Fedora, or AlmaLinux )

dnf install supervisor ( For oracle Linux )

sudo dnf install python3-pip

python3.12 -m ensurepip

pip3 install --upgrade pip

python3.12 -m pip install --upgrade pip

pip install supervisor

export PYTHONPATH=/usr/local/lib/python3.12/site-packages

echo 'export PYTHONPATH=/usr/local/lib/python3.12/site-packages' | sudo tee -a /etc/environment

source /etc/environment

sudo vim /etc/supervisord.conf

[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)

user=root

; 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

user=root

Test command

/usr/bin/supervisord -c /etc/supervisord.conf

Once you do the testing , you have to kill the process before starting service ( ps -ef | grep sup ) then kill that work.

vim /etc/systemd/system/supervisord.service

( add this , check the correct python folder )

[Unit]

Description=Supervisor process control system

Documentation=http://supervisord.org

After=network.target

[Service]

Type=forking

ExecStart=/usr/bin/supervisord -c /etc/supervisord.conf

ExecStop=/usr/bin/supervisorctl shutdown

ExecReload=/usr/bin/supervisorctl reload

KillMode=process

Restart=on-failure

User=root

Environment="PYTHONPATH=/usr/local/lib/python3.12/site-packages"

[Install]

WantedBy=multi-user.target

sudo systemctl daemon-reload

chkconfig supervisord on

sudo service supervisord restart

Logs can be seen below

sudo cat /var/log/supervisor/supervisord.log