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Markdown
20 lines
No EOL
1 KiB
Markdown
<a class="btn btn-lg btn-default" href="packaging_apps_en">Application packaging</a>
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### Multi-instance
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Multi-instance is application capacity to be installed several times.
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#### Scripts
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When YunoHost installs the application a second time, it gives to the script, at last argument, `${id}__2` with the application `${id}` coming from the manifest. The value `n` in `${id}__n` is incremented each time a new instance of the application is installed.
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**E.g.** in the roundcube script, database is called `roundcube`, the install directory `roundcube` and the [Nginx configuration](packaging_apps_nginx_conf_en) `roundcube`. This way, the second instance of roundcube will not conflict with the first one, and will be installed in the `roundcube__2` database, in the `roundcube__2`directory, and with the `roundcube__2` Nginx configuration.
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Retrieve last variable given to scripts:
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```bash
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APP=${!#}
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```
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#### Manifest
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Set `multi_instance` variable to `true` in the [manifest](packaging_apps_manifest_en):
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```json
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"multi_instance": "true",
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``` |