n8n_ynh/scripts/install

#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

ynh_clean_setup () {
	ynh_clean_check_starting
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# RETRIEVE ARGUMENTS FROM THE MANIFEST
#=================================================

domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
is_public=$YNH_APP_ARG_IS_PUBLIC
password=$YNH_APP_ARG_PASSWORD
admin=$YNH_APP_ARG_ADMIN
timezone="$(cat /etc/timezone)"
email=$(ynh_user_get_info --username=$admin --key=mail)

app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..." --weight=2

final_path=/var/www/$app
test ! -e "$final_path" || ynh_die --message="This path already contains a folder"

# Register (book) web path
ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_script_progression --message="Storing installation settings..." --weight=2

ynh_app_setting_set --app=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=path --value=$path_url
ynh_app_setting_set --app=$app --key=admin --value=$admin
ynh_app_setting_set --app=$app --key=password --value=$password
ynh_app_setting_set --app=$app --key=email --value=$email

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Finding an available port..." --weight=1

# Find an available port
port=$(ynh_find_port --port=5678)
ynh_app_setting_set --app=$app --key=port --value=$port

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=6

ynh_install_nodejs --nodejs_version=$nodejs_version

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=4

# Create a system user
ynh_system_user_create --username=$app --home_dir=$final_path

#=================================================
# CREATE A MYSQL DATABASE
#=================================================
ynh_script_progression --message="Creating a MySQL database..." --weight=1

db_name=$(ynh_sanitize_dbid --db_name=$app)
db_user=$db_name
ynh_app_setting_set --app=$app --key=db_name --value=$db_name
ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=1

ynh_app_setting_set --app=$app --key=final_path --value=$final_path
# Download, check integrity, uncompress and patch the source from app.src
mkdir -p $final_path

#=================================================
# INSTALL n8n
#=================================================
ynh_script_progression --message="Installing $app..." --weight=2

pushd $final_path
 	ynh_use_nodejs
	ynh_exec_warn_less env $ynh_node_load_PATH npm install n8n@${n8n_version}
popd

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..." --weight=4

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# CREATE DATA DIRECTORY
#=================================================
ynh_script_progression --message="Creating a data directory..." --weight=1

datadir=/home/yunohost.app/$app
ynh_app_setting_set --app=$app --key=datadir --value=$datadir

mkdir -p $datadir

chmod 750 "$datadir"
chmod -R o-rwx "$datadir"
chown -R $app:www-data "$datadir"

#=================================================
# ADD A CONFIGURATION
#=================================================
ynh_script_progression --message="Adding a configuration file..." --weight=1

ynh_add_config --template="../conf/.env" --destination="$final_path/.env"

chmod 400 "$final_path/.env"
chown $app:$app "$final_path/.env"

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring a systemd service..." --weight=4

env_path="$PATH"
# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=3

yunohost service add $app --description="Workflow Automation Tool" --log="/var/log/$app/$app.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=6

# Start a systemd service
ynh_systemd_action --service_name=$app --action=restart --log_path=systemd --line_match="Editor is now accessible via:"

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring permissions..." --weight=1

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	ynh_permission_update --permission="main" --add="visitors"
fi

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=1

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# END OF SCRIPT
#=================================================

ynh_script_progression --message="Installation of $app completed" --last