How to Install Odoo 13 on CentOS 8 Print

This article will show you how to install Odoo 13 on a CentOS 8 VPS.

 

We will be installing Odoo 13 from the source GitHub repository (i.e. the place where developers release the official code). It is the most common method of Odoo installation, and it is also the most straightforward one.

Prerequisites

Operating system: CentOS 8

Server resources: 2-core CPU & 2GB of RAM

Access: ability to connect to a server via SSH

Permissions: a user with root privileges (i.e. able to use the 'sudo' command)

Note: you can execute all of the commands below from the root user, but for security purposes, it is recommended that you use a separate user with sudo privileges. 

Step 1: Connect to a Server

If you’ve met all the requirements for the installation, let’s begin by connecting to a server via SSH.

Step 2: Update the System & Install the EPEL repository

Once you’re connected to your CentOS 8 server, update the list of available packages:

sudo dnf update

Then, install the EPEL repository, which is a place where extra Linux packages are stored (we will need it later):

sudo dnf install epel-release

Step 3: Install Packages for Python and Odoo Dependencies

The programming language used by Odoo 13 is Python. Install Python version 3.6 by executing the following command:

sudo dnf install python36 python36-devel

Install all the other packages required to build Odoo 13:

sudo dnf install git gcc wget nodejs libxslt-devel bzip2-devel openldap-devel libjpeg-devel freetype-devel

Step 4: Create a Dedicated Linux User for Odoo

You need to create a dedicated Linux user in order to keep Odoo's permissions strict and pre-defined. 

The following command will create a user named odoo and a user group of the same name. The home directory for the user will be /opt/odoo, and Bash will be the default shell. 

sudo useradd -m -U -r -d /opt/odoo -s /bin/bash odoo

Note: you can choose any name for the user, but make sure to use that same name in the next step, when you will be creating a database user.

Step 5: Install and Configure PostgreSQL

PostgreSQL is the database engine used by Odoo to store and access application and user data. 

Install it with the following command: 

sudo dnf install postgresql postgresql-server postgresql-contrib

Make sure the database is ready to work on your server:

sudo /usr/bin/postgresql-setup initdb

Start the PostgreSQL process and make sure the database process is always running:

sudo systemctl start postgresql

sudo systemctl enable postgresql

Create a new PostgreSQL user (remember to use the user name from the previous step):

sudo su - postgres -c "createuser -s odoo"

Step 6: Install Wkhtmltopdf

Wkhtmltopdf is the package that allows Odoo 13 to print PDF reports. It converts HTML (web page markup) to PDF, but it's not present in the official package list nor the EPEL repository. 

Instead, download it from the official website using this command:

cd /opt/ && sudo wget https://downloads.wkhtmltopdf.org/0.12/0.12.5/wkhtmltox-0.12.5-1.centos8.x86_64.rpm

Once done, install the Wkhtmltopdf package from the downloaded file:

sudo dnf localinstall wkhtmltox-0.12.5-1.centos8.x86_64.rpm

Step 7: Install and Configure Odoo 13

Now it's time to download the official release of Odoo 13 from the main repository. 

Switch to the previously created odoo user:

sudo su - odoo

Download Odoo 13 from GitHub:

git clone https://www.github.com/odoo/odoo --depth 1 --branch 13.0 /opt/odoo/odoo13

Step 8: Create a Python Virtual Environment & Install Python Modules

After you download the Odoo 13 code, you need to install specific Python modules in order for it to work.

The virtual environment is needed to separate Odoo's Python modules from the system's Python modules so that the two don’t interfere with each other.

Create a virtual environment in the /opt/odoo directory: 

cd /opt/odoo && python3 -m venv odoo13-venv

Activate the virtual environment:

source odoo13-venv/bin/activate

You are now inside the virtual environment. Install all the Python packages listed in the requirements.txt file:

pip3 install -r odoo13/requirements.txt

Note: You can disregard the orange messages that might appear during the installation.

Deactivate the virtual environment and return to the previous system user (you won't need to do anything under the odoo user anymore):

deactivate && exit

Step 9: Prepare for Custom Odoo Addons

Create a separate directory for custom Odoo addons and change its owner to the odoo user:

sudo mkdir /opt/odoo/odoo13-custom-addons

sudo chown odoo: /opt/odoo/odoo13-custom-addons

Create a log file for the new Odoo installation and change its owner to the odoo user:

sudo mkdir /var/log/odoo13 && sudo touch /var/log/odoo13/odoo.log

sudo chown -R odoo: /var/log/odoo13/

Step 10: Create a Configuration File for Your Odoo Instance. 

Now you need to create a file with your settings. In this example, we use nano as our text editor, but you can use any text editor to create and edit the configuration file.

Open the configuration file:

sudo nano /etc/odoo.conf

Copy the following text and paste it into the configuration file.

[options]

; This is the password that allows database operations:

admin_passwd = master_password

db_host = False

db_port = False

db_user = odoo

db_password = False

xmlrpc_port = 8069

; longpolling_port = 8072

logfile = /var/log/odoo13/odoo.log

logrotate = True

addons_path = /opt/odoo/odoo13/addons,/opt/odoo/odoo13-custom-addons

Make sure to change the master_password value to a proper, secure password. This is the password used to access and manage your Odoo instance. 

Note: If you are a SolaDrive customer and use one of our Odoo VPS Hosting services you can simply ask our expert Odoo specialists to change your Odoo password for you. We are available 24x7 via chat or ticket and will take care of your request immediately.

Save the file and close it. In nano, that can be done by pressing "Ctrl + x", followed by "Y" and "Enter".

 

Congratulations! You have successfully installed Odoo. Now you just need to make sure it runs automatically.

Step 11: Create a systemd Service File

You need to configure Odoo 13 to run as a service on the background.

Create a new service file for Odoo 13: 

sudo nano /etc/systemd/system/odoo13.service

Copy and paste the following text into the file:

[Unit]

Description=Odoo13

#Requires=postgresql-10.6.service

#After=network.target postgresql-10.6.service



[Service]

Type=simple

SyslogIdentifier=odoo13

PermissionsStartOnly=true

User=odoo

Group=odoo

ExecStart=/opt/odoo/odoo13-venv/bin/python3 /opt/odoo/odoo13/odoo-bin -c /etc/odoo.conf

StandardOutput=journal+console



[Install]

WantedBy=multi-user.target

Save the file and close it. In nano, it can be done by pressing "Ctrl + x", followed by "Y" and "Enter".

Reload the systemd daemon:

sudo systemctl daemon-reload

Start the Odoo 13 process on the background and enable it (so that it's running by default):

sudo systemctl start odoo13

sudo systemctl enable odoo13

Check if Odoo is running:

sudo systemctl status odoo13.service

You should see a similar output in the terminal:

odoo13.service - Odoo13
Loaded: loaded (/etc/systemd/system/odoo13.service; disabled; vendor preset: disabled)

Active: active (running) since Wed 2012-06-28 12:02:14 EDT; 1min ago

Main PID: 14401 (python3)

Tasks: 6 (limit: 11523)

Memory: 99.2M

CGroup: /system.slice/odoo13.service

└─12909 /opt/odoo/odoo13-venv/bin/python3 /opt/odoo/odoo13/odoo-bin -c /etc/odoo.conf

Step 12: Start Working With Odoo 13

You can now access the web interface of Odoo 13 for further configuration.

Open your browser and go to the following URL: 

http://server_ip:8069

• server_ip is the IP address of the server you installed Odoo on. 

If all is well, you will see the Odoo 13 graphical interface: