After upgrading Confluence, the "Upload app" option under Manage Apps is not visible.
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
The "Upload app" option under Manage Apps menu is not visible after upgrading Confluence application to Confluence 7.19.20 or Confluence version 8.5.7 and above.
Environment
Confluence 7.19.20 or higher
Confluence 8.5.7 or higher
Cause
For higher security, the option to upload a plugin from Confluence UI (Upload app link) is disabled by default on latest versions of Confluence Data Center. This is part of group of changes in how Atlassian Data Center products, including Confluence, handle app installations through the Universal Plugin Manager (UPM) and REST APIs.
There is more information available about this situation in the following links:
- Atlassian Developer Community > Changes to the installation of DC apps
- Changes to app uploads via the Universal Plugin Manager
- CONFSERVER-94541 - Getting issue details... STATUS
Below are the versions of Confluence and UPM which are affected:
| Confluence Version | UPM version | Links to the documentation |
|---|---|---|
| 8.5.7 | 6.3.4 | Managing System and Marketplace Apps |
| 7.19.20 | 5.1.13 | Managing System and Marketplace Apps |
Solution
The Confluence administrator can re-enable the UI upload button and API by following the below:
Do note that these steps need to be carried out in every Confluence node of your environment.
- Stop Confluence
Configuring System Properties, by adding the "-Dupm.plugin.upload.enabled=true" to the the Confluence settings.
CATALINA_OPTS="-Dupm.plugin.upload.enabled=true ${CATALINA_OPTS}"- Restart Confluence
When set to true, this property enables API app installation. Setting it to true will require a restart.
For higher security, leave this set to false when no apps need to be installed.