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searxng_ynh/scripts/_common.sh
2024-04-25 06:14:47 +00:00

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#!/bin/bash
#=================================================
# COMMON VARIABLES
#=================================================
repo_fullpath="https://github.com/searxng/searxng"
commit_sha="e0214412f82305eee4a4f0b721c92ef9b869d240"
#=================================================
# UWSGI HELPERS
#=================================================
# Check if system wide templates are available and correcly configured
#
# usage: ynh_check_global_uwsgi_config
ynh_check_global_uwsgi_config () {
uwsgi --version || ynh_die --message="You need to add uwsgi (and appropriate plugin) as a dependency"
cat > "/etc/systemd/system/uwsgi-app@.service" <<EOF
[Unit]
Description=%i uWSGI app
After=syslog.target
[Service]
RuntimeDirectory=%i
ExecStart=/usr/bin/uwsgi \
--ini /etc/uwsgi/apps-available/%i.ini \
--socket /run/%i/app.socket \
--logto /var/log/uwsgi/%i/%i.log
User=%i
Group=www-data
Restart=always
RestartSec=10
KillSignal=SIGQUIT
Type=notify
NotifyAccess=all
[Install]
WantedBy=multi-user.target
EOF
systemctl daemon-reload
}
# Create a dedicated uwsgi ini file to use with generic uwsgi service
#
# To be able to customise the settings of the systemd unit you can override the rules with the file "conf/uwsgi-app@override.service".
# This file will be automatically placed on the good place
#
# Note that the service need to be started manually at the end of the installation.
# Generally you can start the service with this command:
# ynh_systemd_action --service_name "uwsgi-app@$app.service" --line_match "WSGI app 0 \(mountpoint='[/[:alnum:]_-]*'\) ready in [[:digit:]]* seconds on interpreter" --log_path "/var/log/uwsgi/$app/$app.log"
#
# usage: ynh_add_uwsgi_service
#
# to interact with your service: `systemctl <action> uwsgi-app@app`
ynh_add_uwsgi_service () {
ynh_check_global_uwsgi_config
local finaluwsgiini="/etc/uwsgi/apps-available/$app.ini"
# www-data group is needed since it is this nginx who will start the service
usermod --append --groups www-data "$app" || ynh_die --message="It wasn't possible to add user $app to group www-data"
ynh_add_config --template="uwsgi.ini" --destination="$finaluwsgiini"
ynh_store_file_checksum --file="$finaluwsgiini"
chown $app:root "$finaluwsgiini"
# make sure the folder for logs exists and set authorizations
mkdir -p "/var/log/uwsgi/$app"
chown $app:root "/var/log/uwsgi/$app"
chmod -R u=rwX,g=rX,o= "/var/log/uwsgi/$app"
# Setup specific Systemd rules if necessary
mkdir -p "/etc/systemd/system/uwsgi-app@$app.service.d"
if [ -e "../conf/uwsgi-app@override.service" ]; then
ynh_add_config --template="uwsgi-app@override.service" --destination="/etc/systemd/system/uwsgi-app@$app.service.d/override.conf"
fi
systemctl daemon-reload
ynh_systemd_action --service_name="uwsgi-app@$app.service" --action="enable"
# Add as a service
yunohost service add "uwsgi-app@$app" --description="uWSGI service for searxng" --log "/var/log/uwsgi/$app/$app.log"
}
# Remove the dedicated uwsgi ini file
#
# usage: ynh_remove_uwsgi_service
ynh_remove_uwsgi_service () {
local finaluwsgiini="/etc/uwsgi/apps-available/$app.ini"
if [ -e "$finaluwsgiini" ]; then
yunohost service remove "uwsgi-app@$app"
ynh_systemd_action --service_name="uwsgi-app@$app.service" --action="stop"
ynh_exec_fully_quiet ynh_systemd_action --service_name="uwsgi-app@$app.service" --action="disable"
ynh_secure_remove --file="$finaluwsgiini"
ynh_secure_remove --file="/var/log/uwsgi/$app"
ynh_secure_remove --file="/etc/systemd/system/uwsgi-app@$app.service.d"
fi
}
# Backup the dedicated uwsgi config
# Should be used in backup script
#
# usage: ynh_backup_uwsgi_service
ynh_backup_uwsgi_service () {
ynh_backup --src_path="/etc/uwsgi/apps-available/$app.ini"
ynh_backup --src_path="/etc/systemd/system/uwsgi-app@$app.service.d" --not_mandatory
}
# Restore the dedicated uwsgi config
# Should be used in restore script
#
# usage: ynh_restore_uwsgi_service
ynh_restore_uwsgi_service () {
ynh_check_global_uwsgi_config
ynh_restore_file --origin_path="/etc/uwsgi/apps-available/$app.ini"
ynh_restore_file --origin_path="/etc/systemd/system/uwsgi-app@$app.service.d" --not_mandatory
mkdir -p "/var/log/uwsgi/$app"
chown $app:root "/var/log/uwsgi/$app"
chmod -R u=rwX,g=rX,o= "/var/log/uwsgi/$app"
ynh_systemd_action --service_name="uwsgi-app@$app.service" --action="enable"
yunohost service add "uwsgi-app@$app" --description="uWSGI service for searxng" --log "/var/log/uwsgi/$app/$app.log"
}