Let systemd create directories #3122
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Manually creating directories conflicts with systemd service hardening features. Particularly, `ProtectSystem=strict` mounts the filesystem as read-only for the processes started by the unit which leads to `mkdir` failing. By setting `User=mosquitto` and adding `RuntimeDirectory` and `LogsDirectory`, systemd creates `/run/mosquitto` and `/var/log/mosquitto` with the right permissions even `ProtectSystem=strict` is used. Signed-off-by: Guillaume Champagne <[email protected]>
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Context
Manually creating directories conflicts with systemd service hardening features. Particularly,
ProtectSystem=strictmounts the filesystem has read-only for the processes started by the unit which leads tomkdirfailing.By setting
User=mosquittoand addingRuntimeDirectoryandLogsDirectory, systemd creates/run/mosquittoand/var/log/mosquittowith the right permissions evenProtectSystem=strictis used.Adding
User=mosquittoalso has the side effect of running the daemon as the usermosquitto. IChecklist
Have you signed the Eclipse Contributor Agreement, using the same email address as you used in your commits?
https://accounts.eclipse.org/users/gchamp20, submitted, appears to be pending? I can still re-submit but I now get an error.
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