Quick Menu

Application packaging


The manifest.json file defines the app's constants, a bunch of values that YunoHost needs to identify the app and install it correctly. It looks like this:

    "name": "Roundcube",
    "id": "roundcube",
    "packaging_format": 1,
    "description": {
        "en": "Open Source Webmail software",
        "fr": "Webmail Open Source"
    "url": "http://roundcube.net/",
    "version": "1.0.1~ynh7",
    "license": "free",
    "maintainer": {
        "name": "kload",
        "email": "kload@kload.fr"
    "requirements": {
        "yunohost": ">= 2.4.0"
    "multi_instance": true,
    "services": [
    "arguments": {
        "install" : [
                "name": "domain",
                "type": "domain",
                "ask": {
                    "en": "Choose a domain for Roundcube",
                    "fr": "Choisissez un domaine pour Roundcube"
                "example": "domain.org"
                "name": "path",
                "type": "path",
                "ask": {
                    "en": "Choose a path for Roundcube",
                    "fr": "Choisissez un chemin pour Roundcube"
                "example": "/webmail",
                "default": "/webmail"
  • name: app name. It does not have to be unique, but it should be, since it is the name shown to all the YunoHost administrators in the app list. Any characters are allowed.

  • id: ID of the app. You have to ensure that this ID is unique before submit an app integration request. See packaging_apps_guidelines.md#yep-11 for valid rules.

  • packaging_format: package version. Current version is 1. This key has been set up to make independant packaging evolution versions from YunoHost versions evolution.

  • description: complete app description. You can make it as detailed as you feel it should be. Only en is required right now, but you can translate the description by prepending the locale prefix.

  • url: software website.

  • version: version of the package built from the upstream version number and an incremental number for each change in the package without upstream change. Example "1.0.1~ynh7". Must be a string.

  • license: application license: free, non-free or a value from the Identifier column from https://spdx.org/licenses/. Be careful to not confuse with package license which must be put in LICENSE file.

  • maintainer: informations about the app maintainer for contact.

  • requirements: dependency of the application package to a Debian YunoHost package version. For instance, "yunohost": ">> 2.3.12", yunohost package version must be up to 2.3.12.

  • multi_instance : it defines app's ability to be installed multiple times.

  • services: services needed by the application among nginx, php5-fpm, mysql, uwsgi, metronome, postfix, dovecot

  • arguments:

    • install: argument for the YunoHost's administrator to enter at installation.
    • name: argument identification.
    • type: (optional) argument type among domain, path, user, app, boolean, string and password. The field will be hidden in the password case.
    • choices : (optional) restrict value to several choices.
    • optional : (optional) field which indicate if this argument is optional. It can have true and false value.
    • ask: question (at least in en) that you can translate.
    • example: (optional) example value to help administrator to fill the input.
    • default: (optional) default value.

Found errors? Think you can improve this documentation? Simply click the Edit link at the top of the page, and then the icon on Github to suggest changes.