Implement backup and restore

scripts/backup

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+#!/bin/bash
+
+#=================================================
+# GENERIC START
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+#Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
+source ../settings/scripts/_common.sh
+source /usr/share/yunohost/helpers
+
+#=================================================
+# MANAGE SCRIPT FAILURE
+#=================================================
+
+ynh_clean_setup () {
+	true
+}
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
+
+#=================================================
+# LOAD SETTINGS
+#=================================================
+ynh_print_info "Loading installation settings..."
+
+app=$YNH_APP_INSTANCE_NAME
+
+final_path=$(ynh_app_setting_get $app final_path)
+domain=$(ynh_app_setting_get $app domain)
+db_name=$(ynh_app_setting_get $app db_name)
+
+#=================================================
+# STANDARD BACKUP STEPS
+#=================================================
+# BACKUP THE APP MAIN DIR
+#=================================================
+ynh_print_info "Backing up the main app directory..."
+
+ynh_backup "$final_path"
+
+#=================================================
+# BACKUP THE NGINX CONFIGURATION
+#=================================================
+ynh_print_info "Backing up nginx web server configuration..."
+
+ynh_backup "/etc/nginx/conf.d/$domain.d/$app.conf"
+
+#=================================================
+# SPECIFIC BACKUP
+#=================================================
+# BACKUP LOGROTATE
+#=================================================
+ynh_print_info "Backing up logrotate configuration..."
+
+ynh_backup "/etc/logrotate.d/$app"
+
+#=================================================
+# BACKUP SYSTEMD
+#=================================================
+ynh_print_info "Backing up systemd configuration..."
+
+ynh_backup "/etc/systemd/system/$app.service"
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_print_info "Backup script completed for $app. (YunoHost will then actually copy those files to the archive)."

scripts/restore

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+#!/bin/bash
+
+#=================================================
+# GENERIC START
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+#Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
+source ../settings/scripts/_common.sh
+source /usr/share/yunohost/helpers
+
+#=================================================
+# MANAGE SCRIPT FAILURE
+#=================================================
+
+ynh_clean_setup () {
+	true
+}
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
+
+#=================================================
+# LOAD SETTINGS
+#=================================================
+ynh_print_info "Loading settings..."
+
+app=$YNH_APP_INSTANCE_NAME
+
+domain=$(ynh_app_setting_get $app domain)
+path_url=$(ynh_app_setting_get $app path)
+final_path=$(ynh_app_setting_get $app final_path)
+db_name=$(ynh_app_setting_get $app db_name)
+
+#=================================================
+# CHECK IF THE APP CAN BE RESTORED
+#=================================================
+ynh_print_info "Validating restoration parameters..."
+
+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: $final_path "
+
+#=================================================
+# STANDARD RESTORATION STEPS
+#=================================================
+# RESTORE THE NGINX CONFIGURATION
+#=================================================
+
+ynh_restore_file "/etc/nginx/conf.d/$domain.d/$app.conf"
+
+#=================================================
+# RESTORE THE APP MAIN DIR
+#=================================================
+ynh_print_info "Restoring the app main directory..."
+
+ynh_restore_file "$final_path"
+
+#=================================================
+# RECREATE THE DEDICATED USER
+#=================================================
+ynh_print_info "Recreating the dedicated system user..."
+
+# Create the dedicated user (if not existing)
+ynh_system_user_create --username=$app --home_dir=$final_path
+
+#=================================================
+# RESTORE USER RIGHTS
+#=================================================
+
+# Restore permissions on app files
+chown -R "$app": $final_path
+
+#=================================================
+# SPECIFIC RESTORATION
+#=================================================
+# REINSTALL DEPENDENCIES
+#=================================================
+ynh_print_info "Reinstalling dependencies..."
+
+# Define and install dependencies
+ynh_install_app_dependencies $pkg_dependencies
+
+#=================================================
+# RESTORE SYSTEMD
+#=================================================
+ynh_print_info "Restoring the systemd configuration..."
+
+ynh_restore_file "/etc/systemd/system/$app.service"
+systemctl enable $app.service
+
+#=================================================
+# ADVERTISE SERVICE IN ADMIN PANEL
+#=================================================
+
+yunohost service add $app --description "$app daemon for Syncthing"
+
+#=================================================
+# RESTORE THE LOGROTATE CONFIGURATION
+#=================================================
+
+ynh_restore_file "/etc/logrotate.d/$app"
+
+#=================================================
+# GENERIC FINALIZATION
+#=================================================
+# RELOAD NGINX
+#=================================================
+ynh_print_info "Reloading nginx web server..."
+
+systemctl reload nginx
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_print_info "Restoration completed for $app"