Install odoo 16 in the cloud server

Installing Dependencies

The first step is to install Git , Pip , Node.js , and development [tools required to build](https://linuxize.com/post/how-to-install-gcc-on-ubuntu-20-04/ Odoo dependencies:

sudo apt update

sudo apt install git python3-pip 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

Creating a user account using useradd command on Ubuntu

sudo useradd -s /path/to/shell -d /home/{dirname} -m -G {secondary-group} {username}

sudo passwd {username}

sudo useradd -s /bin/bash -d /home/odoo16/ -m -G sudo odoo16

sudo passwd odoo16

Where,

-s /bin/bash – Set /bin/bash as login shell of the new account

-d /home/odoo16/ – Set /home/odoo16/ as home directory of the new Ubuntu account

-m – Create the user’s home directory

-G sudo – Make sure odoo16 user can sudo i.e. give admin access to the new account

Installing ssh keys while creating the new user account

You must have RSA key pair on your local desktop/laptop. Use the cat command to view your current RSA public key on the desktop:

cat ~/.ssh/id_rsa.pub

cat ~/.ssh/id_rsa.pub

Run the following commands on your Ubuntu server to install above ~/.ssh/id_rsa.pub key from your desktop:

sudo mkdir /home/odoo16/.ssh/

sudo chmod 0700 /home/odoo16/.ssh/

sudo -- sh -c "echo 'ssh-rsa --ver-long-string-- user@LocalMachine' > /home/odoo16/.ssh/authorized_keys"

sudo chown -R odoo16:odoo16 /home/odoo16/.ssh/

Now you can log in with ssh keys:

ssh odoo16@<_Cloud_IP_Address_>

Run the following passwd command to set password:

sudo passwd {username}

sudo passwd odoo16

To change your own account password, enter:

passwd

Install Postgres database:

sudo apt install postgresql postgresql-contrib

sudo -i -u postgres

createuser --interactive [odoo16] # which has the same new server user name

createdb [odoo16] # which is the private database for the new server user

Exit the postgres user account:

exit

Installing wkhtmltopdf:

wkhtmltopdf is a set of open-source command-line tools for rendering HTML pages into PDF and various image formats. To print PDF reports in Odoo, you’ll need to install the wkhtmltox package.

The version of wkhtmltopdf that is included in Ubuntu repositories does not support headers and footers. The recommended version for Odoo is version 0.12.5. We’ll download and install the package from Github and dependency from Ubuntu:

sudo wget http://archive.ubuntu.com/ubuntu/pool/main/o/openssl/libssl1.1_1.1.1f-1ubuntu2_amd64.deb

sudo dpkg -i libssl1.1_1.1.1f-1ubuntu2_amd64.deb

sudo wget https://github.com/wkhtmltopdf/wkhtmltopdf/releases/download/0.12.5/wkhtmltox_0.12.5-1.focal_amd64.deb

Once the file is downloaded, install it by typing:

sudo apt install ./wkhtmltox_0.12.5-1.focal_amd64.deb

sudo ln -s /usr/local/bin/wkhtmltopdf /usr/bin

sudo ln -s /usr/local/bin/wkhtmltoimage /usr/bin

You can also install the package and it's dependency from my GitHub account:

https://github.com/kobros-tech/packages/

source of wkhtmltopdf packages:
https://wkhtmltopdf.org/downloads.html

Installing and Configuring Odoo 16

We’ll install Odoo from the source inside an isolated Python virtual environment.

First, make sure to change to user “odoo16”:

sudo su - odoo16

Clone the Odoo 16 source code from GitHub:

git clone https://www.github.com/odoo/odoo --depth 1 --branch 16.0 /home/odoo16/odoo

Create a new Python virtual environment for Odoo:

cd /home/odoo16

python3 -m venv odoo-venv

Activate the virtual environment:

source odoo-venv/bin/activate

Odoo dependencies are specified in the requirements.txt file. Install all required Python modules with pip3:

pip3 install wheel

pip3 install -r odoo/requirements.txt

Once done, deactivate the environment by typing:

deactivate

We’ll create a new directory a separate directory for the 3rd party addons:

mkdir /home/odoo16/custom

Switch back to your sudo user:

exit

Create a configuration file with the following content:

sudo nano /etc/odoo16.conf

[options]

; This is the password that allows database operations:

admin_passwd = my_admin_passwd

db_host = False

db_port = False

db_user = odoo16

db_password = False

addons_path = /home/odoo16/odoo/addons,/home/odoo16/custom

Do not forget to change the my_admin_passwd to something more secure.

Creating Systemd Unit File

A unit file is a configuration ini-style file that holds information about a service.

Open your text editor and create a file named odoo15.service with the following content:

sudo nano /etc/systemd/system/odoo16.service

[Unit]

Description=Odoo16

Requires=postgresql.service

After=network.target postgresql.service

[Service]

Type=simple

SyslogIdentifier=odoo16

PermissionsStartOnly=true

User=odoo16

Group=odoo16

ExecStart=/home/odoo16/odoo-venv/bin/python3 /home/odoo16/odoo/odoo-bin -c /etc/odoo16.conf

StandardOutput=journal+console

Restart=always

RestartSec=3

[Install]

WantedBy=multi-user.target

Notify systemd that a new unit file exists:

sudo systemctl daemon-reload

Start the Odoo service and enable it to start on boot by running:

sudo systemctl enable --now odoo16

Verify that the service is up and running:

sudo systemctl status odoo16

You can check the messages logged by the Odoo service using the command below:

sudo journalctl -u odoo16

Testing the Installation

Open your browser and type: http://<your_domain_or_IP_address>:8069