K2GO-386 fix(rootfs): stop php-fpm running idle by default (barrier 1) - #543
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An idle php-fpm (enabled unconditionally by the nginx role) is the disk-fill offender: orphaned off proot by a relaunch/restore it busy-loops on epoll_wait ENOSYS (~600 MB/min) and fills /data. Move php-fpm ownership from nginx to the roles that use it, in one carried patch: 0002-php-fpm-role-ownership.patch (tools/upstream-patches): - nginx no longer manages php-fpm (drops both the proot enable/restart block and the non-proot systemd restart); nginx does not need it. - the Matomo role enables its own php-fpm. So on the default build (no php-consuming role) php-fpm stays installed but not enabled -> never runs -> cannot orphan and fill the disk. Carried via tools/upstream-patches (WIP); it only affects our build until presented upstream, where it pairs with every IIAB php role self-managing its php. The app-side free-space guard (barrier 2, the general net) is tracked on K2GO-386.
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An idle php-fpm (enabled unconditionally by the nginx role) is the disk-fill offender: orphaned off proot by a relaunch/restore it busy-loops on epoll_wait ENOSYS (~600 MB/min) and fills /data. Move php-fpm ownership from nginx to the roles that use it, in one carried patch:
0002-php-fpm-role-ownership.patch (tools/upstream-patches):
So on the default build (no php-consuming role) php-fpm stays installed but not enabled -> never runs -> cannot orphan and fill the disk. Carried via tools/upstream-patches (WIP); it only affects our build until presented upstream, where it pairs with every IIAB php role self-managing its php.
The app-side free-space guard (barrier 2, the general net) is tracked on K2GO-386.