How To Install ERPNext 15 in Ubuntu 22.04 LTS

A complete Guide on How to Install Frappe/ERPNext version 15 in Ubuntu 22.04 LTS

Steps

Install ERPNext
Setup Production
Setup Multitenancy
Add a Domain
Install SSL Certificate

Pre-requisites

Ubuntu 22.04 LTS
Python 3.11+
Node.js 20+
A user with sudo privileges
MariaDB 10.3.x

STEP 1 ~ Update and Upgrade Packages

sudo apt-get update -y
sudo apt-get upgrade -y

STEP 2 ~ Create a New User

sudo adduser [frappe-user]
usermod -aG sudo [frappe-user]
su [frappe-user]
cd /home/[frappe-user]

Ensure you have replaced [frappe-user] with your username. eg. sudo adduser frappe

Install Required Packages

For setting up ERPNext 15, we need to install several software packages first.

Install Python ERPNext version 15 requires Python version 3.11+.

STEP 3 ~ Adding PPA repository and Install Python 3.11

sudo add-apt-repository ppa:deadsnakes/ppa

sudo apt-get install python3-dev python3.11-dev python3-setuptools python3-pip python3-distutils

STEP 4 ~ Install Python Virtual Environment

sudo apt install python3.10-venv python3.11-venv

STEP 5 ~ Set Default Python Version to 3.11

sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.11 1

STEP 6 ~ Install Redis Server

sudo apt-get install redis-server

STEP 7 ~ Install and Setup MariaDB

sudo apt-get install software-properties-common
sudo apt install mariadb-server mariadb-client
sudo mysql_secure_installation

Upon running the last command, you’ll encounter a series of prompts on the server. Make sure to follow the subsequent steps carefully to ensure the setup is configured properly.

Enter current password for root: (Enter your SSH root user password)

Switch to unix_socket authentication [Y/n]: Y

Change the root password? [Y/n]: Y

Remove anonymous users? [Y/n] Y

Disallow root login remotely? [Y/n] Y

Remove test database and access to it? [Y/n] Y

Reload privilege tables now? [Y/n] Y

STEP 8 ~ Create my.cnf MYSQL config file

sudo nano /etc/mysql/mariadb.conf.d/my.cnf

Add these lines

[mysqld]
innodb-file-format=barracuda
innodb-file-per-table=1
innodb-large-prefix=1
character-set-client-handshake = FALSE
character-set-server = utf8mb4
collation-server = utf8mb4_unicode_ci

[mysql]
default-character-set = utf8mb4

STEP 9 ~ Install other packages

sudo apt-get install xvfb libfontconfig wkhtmltopdf

sudo apt-get install libmysqlclient-dev

STEP 10 ~ Install CURL, Node.js, NPM, and Yarn

CURL

sudo apt install curl

Node.js

sudo apt install curl 
curl https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash
source ~/.profile
nvm install 20

npm

sudo apt-get install npm

Yarn

sudo npm install -g yarn

STEP 10 ~ Install Frappe Bench

sudo pip3 install frappe-bench

STEP 11 ~ Initialize Frappe Bench

bench init frappe-folder --frappe-branch version-15
cd frappe-folder/

Add the node-sass package

yarn add node-sass

Change user directory permissions

chmod -R o+rx /home/[frappe-user]

STEP 12 ~ Create a New Site

bench new-site [site-name]

STEP 13 ~ Install ERPNext and other Apps

bench get-app erpnext --branch version-15

bench get-app payments --branch version-15

bench --site [site-name] install-app erpnext

Lastly

bench use [site-name]

bench start

Setting ERPNext for Production

STEP 1 ~ Enable Scheduler

bench --site [site-name] enable-scheduler

STEP 2 ~ Disable maintenance mode

bench --site [site-name] set-maintenance-mode off

STEP 3 ~ Setup production config

sudo bench setup production [frappe-user]

STEP 4 ~ Setup NGINX to apply the changes

bench setup nginx

STEP 5 ~ Restart Supervisor and Launch Production Mode

sudo supervisorctl restart all
sudo bench setup production [frappe-user]

Setup Multitenancy

DNS based multitenancy

You can name your sites as the hostnames that would resolve to it. Thus, all the sites you add to the bench would run on the same port and will be automatically selected based on the hostname.

To make a new site under DNS based multitenancy, perform the following steps.

STEP 1 ~ Switch on DNS based multitenancy (once)

bench config dns_multitenant on

STEP 2 ~ Create a new site

bench new-site site2name

STEP 2 ~ Re generate nginx config

bench setup nginx

STEP 3 ~ Reload nginx

sudo service nginx reload

Adding a Domain with SSL to your Site

Add Domain

bench setup add-domain [desired-domain]

Install Let's Encrypt Certificate

Install snapd on your machine

sudo apt install snapd

Update snapd

sudo snap install core;
sudo snap refresh core

Remove existing installations of certbot

sudo apt-get remove certbot

Install certbot

sudo snap install --classic certbot

sudo ln -s /snap/bin/certbot /usr/bin/certbot

Get Certificate

sudo -H bench setup lets-encrypt [site-name]

You will be faced with several prompts, respond to them accordingly. This command will also add an entry to the crontab of the root user (this requires elevated permissions), that will attempt to renew the certificate every month.