Add remove, backup and restore scripts

scripts/backup

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+#!/bin/bash
+
+
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+if [ ! -e _common.sh ]; then
+	# Fetch helpers file if not in current directory
+	cp ../settings/scripts/_common.sh ./_common.sh
+	chmod a+rx _common.sh
+fi
+source _common.sh
+source /usr/share/yunohost/helpers
+
+#=================================================
+# MANAGE SCRIPT FAILURE
+#=================================================
+
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
+
+#=================================================
+# LOAD SETTINGS
+#=================================================
+
+app=$YNH_APP_INSTANCE_NAME
+
+domain=$(ynh_app_setting_get $app domain)
+final_path=$(ynh_app_setting_get "$app" final_path)
+db_name=$(ynh_app_setting_get $app db_name)
+
+#=================================================
+# STANDARD BACKUP STEPS
+#=================================================
+# BACKUP APP MAIN DIR
+#=================================================
+
+ynh_backup "$final_path"
+
+#=================================================
+# BACKUP NGINX CONFIGURATION
+#=================================================
+
+ynh_backup "/etc/nginx/conf.d/$domain.d/$app.conf"
+
+#=================================================
+# BACKUP SYSTEMD
+#=================================================
+
+ynh_backup "/etc/systemd/system/$app-puma.service"
+ynh_backup "/etc/systemd/system/$app-sidekiq.service"
+
+#=================================================
+# BACKUP THE POSTGRESQL DATABASE
+#=================================================
+
+ynh_psql_dump_db "$db_name" > ${YNH_CWD}/db.sql
+
+#=================================================
+# BACKUP LOG FILE
+#=================================================
+
+ynh_backup "/var/log/$app"

scripts/remove

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+#!/bin/bash
+
+#=================================================
+# GENERIC START
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+source _common.sh
+source /usr/share/yunohost/helpers
+
+#=================================================
+# LOAD SETTINGS
+#=================================================
+
+app=$YNH_APP_INSTANCE_NAME
+
+domain=$(ynh_app_setting_get $app domain)
+db_name=$(ynh_app_setting_get $app db_name)
+final_path=$(ynh_app_setting_get $app final_path)
+
+#=================================================
+# STANDARD REMOVE
+#=================================================
+# STOP AND REMOVE SERVICE
+#=================================================
+
+ynh_remove_systemd_config discourse-puma
+ynh_remove_systemd_config discourse-sidekiq
+
+# STOP AND REMOVE SERVICE
+#=================================================
+
+# Remove the dedicated systemd config
+# ynh_remove_systemd_config
+
+# service $app stop
+# rm "/etc/init.d/$app"
+# update-rc.d -f $app remove
+
+#=================================================
+# REMOVE SERVICE FROM ADMIN PANEL
+#=================================================
+
+if yunohost service status | grep -q $app
+then
+	echo "Remove $app services"
+	yunohost service remove $app-puma
+	yunohost service remove $app-sidekiq
+fi
+
+#=================================================
+# REMOVE DEPENDENCIES
+#=================================================
+
+# Remove metapackage and its dependencies
+ynh_remove_app_dependencies
+
+#=================================================
+# REMOVE THE POSTGRES DATABASE
+#=================================================
+
+ynh_psql_remove_db $db_name $db_name
+
+#=================================================
+# REMOVE APP MAIN DIR
+#=================================================
+
+# Remove the app directory securely
+ynh_secure_remove "$final_path"
+
+#=================================================
+# REMOVE NGINX CONFIGURATION
+#=================================================
+
+# Remove the dedicated nginx config
+ynh_remove_nginx_config
+
+#=================================================
+# REMOVE LOGROTATE CONFIGURATION
+#=================================================
+
+# Remove the app-specific logrotate config
+ynh_remove_logrotate
+
+#=================================================
+# GENERIC FINALIZATION
+#=================================================
+# REMOVE DEDICATED USER
+#=================================================
+
+# Delete a system user
+ynh_system_user_delete $app

scripts/restore

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+#!/bin/bash
+
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+if [ ! -e _common.sh ]; then
+	# Fetch helpers file if not in current directory
+	cp ../settings/scripts/_common.sh ./_common.sh
+	chmod a+rx _common.sh
+fi
+source _common.sh
+source /usr/share/yunohost/helpers
+
+#=================================================
+# MANAGE SCRIPT FAILURE
+#=================================================
+
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
+
+#=================================================
+# LOAD SETTINGS
+#=================================================
+
+app=$YNH_APP_INSTANCE_NAME
+
+domain=$(ynh_app_setting_get $app domain)
+path_url=$(ynh_app_setting_get $app path)
+is_public=$(ynh_app_setting_get $app is_public)
+final_path=$(ynh_app_setting_get $app final_path)
+db_name=$(ynh_app_setting_get $app db_name)
+db_pwd=$(ynh_app_setting_get $app db_pwd)
+
+#=================================================
+# CHECK IF THE APP CAN BE RESTORED
+#=================================================
+
+ynh_webpath_available $domain $path_url \
+	|| ynh_die "Path not available: ${domain}${path_url}"
+test ! -d $final_path \
+	|| ynh_die "There is already a directory: $final_path "
+
+#=================================================
+# STANDARD RESTORATION STEPS
+#=================================================
+# RESTORE ALL FILES
+#=================================================
+
+# Restore all config and data
+ynh_restore
+
+#=================================================
+# REINSTALL DEPENDENCIES
+#=================================================
+
+ynh_install_app_dependencies "$pkg_dependencies"
+
+#=================================================
+# REINSTALL BUNDLE GEM
+#=================================================
+
+(cd "$final_path"
+gem install bundler)
+
+#=================================================
+# RESTORE THE POSTGRESQL DATABASE
+#=================================================
+
+ynh_psql_test_if_first_run
+ynh_psql_test_if_first_run
+ynh_psql_setup_db "$db_name" "$db_name" "$db_pwd"
+# Set extensions
+ynh_psql_execute_as_root "\connect $db_name
+CREATE EXTENSION IF NOT EXISTS hstore; CREATE EXTENSION IF NOT EXISTS pg_trgm;"
+# Restore dump
+ynh_psql_execute_file_as_root ./db.sql "$db_name"
+
+#=================================================
+# RESTORE SYSTEMD
+#=================================================
+
+systemctl daemon-reload
+systemctl enable $app-puma.service
+systemctl enable $app-sidekiq.service
+
+#=================================================
+# SETUP LOGROTATE
+#=================================================
+
+ynh_use_logrotate
+
+#=================================================
+# RECREATE OF THE DEDICATED USER
+#=================================================
+
+ynh_system_user_create $app	# Recreate the dedicated user, if not existing
+
+#=================================================
+# RESTORE USER RIGHTS
+#=================================================
+
+chown -R $app: $final_path
+chown -R $app: /var/log/$app
+
+#=================================================
+# ADVERTISE SERVICE IN ADMIN PANEL
+#=================================================
+
+yunohost service add $app-puma --log "/var/log/$app/puma.stderr.log"
+yunohost service add $app-sidekiq --log "/var/www/$app/log/production.log"
+
+#=================================================
+# GENERIC FINALIZATION
+#=================================================
+# RELOAD NGINX AND DISCOURSE
+#=================================================
+
+# Wait for discourse-puma to be fully started
+# As discourse-sidekiq is a dependency, it is automatically started before
+ynh_check_starting_systemd "Use Ctrl-C to stop" "$app-puma" "120"
+
+systemctl reload nginx
+
+# Additional pause to avoid 502 errors in package_check after reinstall...
+sleep 120s