Uploaded plugins fail to load on OpenBSD

[athompso]

Summary

Uploaded plugins fail to load on OpenBSD

Steps to reproduce

Install mattermost 8.1.2 from OpenBSD pre-built port (pkg_add mattermost), upload community plugins.

Expected behavior

Community plugins should load.

Observed behavior (that appears unintentional)

info  [2024-05-09 21:05:37.804 -05:00] Starting up plugins                           caller="app/plugin.go:213"
info  [2024-05-09 21:05:37.804 -05:00] Syncing plugins from the file store           caller="app/plugin.go:293"
warn  [2024-05-09 21:05:37.805 -05:00] Skipping sync for unmanaged plugin            caller="app/plugin.go:313" plugin_id=zoom
info  [2024-05-09 21:05:37.828 -05:00] Syncing plugin from file store                caller="app/plugin.go:353" bundle=plugins/com.mattermost.calls.tar.gz
info  [2024-05-09 21:05:37.828 -05:00] Syncing plugin from file store                caller="app/plugin.go:353" bundle=plugins/zoom.tar.gz
info  [2024-05-09 21:05:37.828 -05:00] Syncing plugin from file store                caller="app/plugin.go:353" bundle=plugins/jitsi.tar.gz
error [2024-05-09 21:05:39.410 -05:00] Failed to sync plugin from file store         caller="app/plugin.go:355" bundle=plugins/jitsi.tar.gz error="installExtractedPlugin: Unable to restart plugin on upgrade., unable to start plugin: jitsi: unable to generate plugin checksum: read /var/mattermost/plugins/jitsi: is a directory"
error [2024-05-09 21:05:39.569 -05:00] Failed to sync plugin from file store         caller="app/plugin.go:355" bundle=plugins/zoom.tar.gz error="installExtractedPlugin: Unable to restart plugin on upgrade., unable to start plugin: zoom: unable to generate plugin checksum: read /var/mattermost/plugins/zoom: is a directory"

Possible fixes

The proximate problem is obviously at

mattermost/server/public/plugin/supervisor.go

Line 239 in f0121d4

file, err := os.Open(executablePath)

but I suspect there might be an earlier problem somewhere closer to

mattermost/server/public/model/manifest.go

Line 240 in f0121d4

func (m *Manifest) GetExecutableForRuntime(goOs, goArch string) string {

I don't currently have the ability to either rebuild from source or debug the binary... working on that, and I'll report back if/when I have a better idea of the root cause

I've opened the ticket in mattermost/mattermost instead of mattermost-community/* because non-manually-uploaded plugins work fine, and multiple community-maintained plugins are broken. Given the niche OS, I'm expecting it'll be something OpenBSD-specific.

[amyblais]

@athompso Given that v8.1 is going out of support on May 15th, would you be open to upgrading to v9.5 or a newer version to see if the issue still reproduces?

[amyblais]

Closing for now as we haven't heard back. This issue can be re-opened if the issue persists on a supported version,