Odoo is a web-based suite of open source business management applications. The platform includes various business solutions, such as CRM, warehouse management, accounting, billing, website builder, etc.
Odoo Community edition is available for Ubuntu for free, but you can switch to the Enterprise edition as needed.
This tutorial provides steps on installing Odoo 15 on Ubuntu 20.04 in a Python virtual environment.
- Access to the command line/terminal with sudo permissions.
- Access to a browser.
- Git installed.
- Pip for Python 3 installed.
- NodeJS installed.
Install Odoo on Ubuntu
After meeting all the prerequisites, follow the steps below to install Odoo 15 on Ubuntu in a Python virtual environment.
Installing Odoo in a virtual environment creates an isolated system and allows testing of different versions on the same machine.
Step 1: Update Repository
Open the terminal and update the apt repository:
sudo apt update
Wait for the update to finish before proceeding to the next step.
Step 2: Install Odoo Dependencies
Install Odoo dependencies with the following command:
sudo apt install -y build-essential wget python3-dev python3-venv python3-wheel libfreetype6-dev libxml2-dev libzip-dev libldap2-dev libsasl2-dev python3-setuptools node-less libjpeg-dev zlib1g-dev libpq-dev libxslt1-dev libldap2-dev libtiff5-dev libjpeg8-dev libopenjp2-7-dev liblcms2-dev libwebp-dev libharfbuzz-dev libfribidi-dev libxcb1-dev
Make sure there are no typos to avoid missing packages.
The installation fetches all additional dependencies necessary for Odoo installation.
Step 3: Create Odoo User
Running Odoo as a root user poses a security risk. Create a new system user, group, and home directory named Odoo:
sudo useradd -m -d /opt/odoo -U -r -s /bin/bash odoo
The username can be different if it matches the PostgreSQL user and the configuration file information.
Step 4: Install and Configure PostgreSQL
Odoo uses PostgreSQL as the database. Install PostgreSQL from the official Ubuntu repositories with:
sudo apt install postgresql
Press Y when prompted to continue. Once the installation finishes, create a Postgres user with the same name from the previous step:
sudo su - postgres -c "createuser -s odoo"
The command creates a user named odoo to manage the database.
Step 5: Install wkhtmltopdf
The wkhtmltopdf set of open source tools helps render HTML pages into PDFs and images for generating reports in various formats.
To download the installer, run:
sudo wget https://github.com/wkhtmltopdf/wkhtmltopdf/releases/download/0.12.5/wkhtmltox_0.12.5-1.bionic_amd64.deb
The command fetches the Debian package. To install the package, run:
sudo apt install ./wkhtmltox_0.12.5-1.bionic_amd64.deb
Press Y when asked to continue the installation. Wait for the process to complete before continuing.
Step 6: Install and Configure Odoo
To install Odoo, follow the steps below:
1. Switch to the odoo user with the sudo su command:
sudo su - odoo
2. Clone the Odoo 15 source code from the Git repository:
git clone https://www.github.com/odoo/odoo --depth 1 --branch 15.0 /opt/odoo15/odoo
4. Navigate to the odoo directory and create a Python virtual environment for Odoo:
python3 -m venv odoo-venv
5. Activate the environment with:
The environment name shows in the terminal before the user.
5. Install the following requirements for Odoo:
pip3 install wheel
pip3 install -r odoo/requirements.txt
Wait for the installation to complete.
6. After this, Odoo requires additional setup and configuration. Deactivate the environment with:
7. Create a separate directory for custom addons:
This directory defines where Odoo searches for modules.
8. Switch back to the sudo user with:
9. Create the odoo.conf file using the nano text editor:
sudo nano /etc/odoo.conf
Paste the following contents into the odoo.conf file:
[options] ; Database operations password: admin_passwd = PASSWORD db_host = False db_port = False db_user = odoo db_password = False addons_path = /opt/odoo/odoo/addons,/opt/odoo/odoo-custom-addons
admin_password field to a secure password for the database. The
addons_path field contains the paths to Odoo module locations. Save and close the file.
10. Create the odoo.service file with:
sudo nano /etc/systemd/system/odoo.service
Paste the following contents into the file:
[Unit] Description=Odoo Requires=postgresql.service After=network.target postgresql.service [Service] Type=simple SyslogIdentifier=odoo PermissionsStartOnly=true User=odoo Group=odoo ExecStart=/opt/odoo/odoo-venv/bin/python3 /opt/odoo/odoo/odoo-bin -c /etc/odoo.conf StandardOutput=journal+console [Install] WantedBy=multi-user.target
The service connects to Odoo through the Python virtual environment and uses the configuration file from the previous step. Save the changes and close the file.
11. Update the service list:
sudo systemctl daemon-reload
The Odoo service is now available.
Step 7: Start and Test Odoo
To start and test Odoo, do the following:
1. Enable the Odoo service on system startup:
sudo systemctl enable --now odoo
2. Check the service status with:
sudo systemctl status odoo
The status shows as
3. The journalctl file contains all the information about the running service:
sudo journalctl -u odoo
Use this file to check for any potential errors.
4. Lastly, access Odoo from the browser on localhost port 8069:
The page shows the Odoo initial setup. Use the
admin_password from the /etc/odoo.conf file as the master password.
Step 8: Enable Multiprocessing (Optional)
Odoo works in multithreading mode by default. Change the server to the multiprocessing mode before deployment to better use system resources and ensure stability.
The number of CPUs helps approximate the number of workers:
- Maximum workers = (CPUs * 2) + 1. For 4 CPUs, the system would have a maximum of 9 workers.
- One worker serves around six concurrent users theoretically. For 24 simultaneous users, the system requires at least four workers.
- A cron worker requires one CPU.
Therefore, a system with 4 CPUs and 24 concurrent users needs at least six workers, plus an additional cron worker.
The number of workers and RAM distribution determine the total RAM Odoo needs:
- Total RAM = Workers * ((Light worker ratio * Light worker RAM) + (Heavy worker ratio * Heavy worker RAM))
If there are around 80% light workers that use 100GB RAM and 20% heavy workers that use 1GB RAM, the calculation is:
Total RAM = 7 * ((100*0.8)+(1024*0.2)) = 1993.6
Odoo requires a total of 2GB RAM. Add the information to the /etc/odoo.conf file:
[options] limit_memory_hard = 2684354560 limit_memory_soft = 2147483648 limit_request = 8192 limit_time_cpu = 600 limit_time_real = 1200 max_cron_threads = 1 workers = 6
To apply the changes, restart the Odoo service:
sudo systemctl restart odoo
The remaining system resources are available for the PostgreSQL database and any other services running on the system.
Step 9: Change Port Number (Optional)
By default, Odoo listens on port 8069. Changing the default port number is a good security practice.
Add the following lines to the /etc/odoo.conf file to have Odoo listen only on 127.0.0.1 port 1111:
xmlrpc_interface = 127.0.0.1 netrpc_interface = 127.0.0.1 xmlrpc_port = 1111
Restart the Odoo service to apply the changes:
sudo systemctl restart odoo
The changes apply immediately.
After following the steps in this guide, you should have Odoo 15 on installed Ubuntu. The system is in a Python virtual environment, making it easy to test multiple versions before deploying.