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https://github.com/koverstreet/bcachefs-tools.git
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fbfdd05ac5
Add some systemd service files so that bcachefs can automatically fsck mounted filesystems in the background. Hopefully with minimal disruption to frontend operations. Signed-off-by: Darrick J. Wong <djwong@kernel.org>
76 lines
1.8 KiB
SYSTEMD
76 lines
1.8 KiB
SYSTEMD
# SPDX-License-Identifier: GPL-2.0
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#
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# Copyright (C) 2023-2024 Oracle. All Rights Reserved.
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# Author: Darrick J. Wong <djwong@kernel.org>
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[Unit]
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Description=Online bcachefsck Failure Reporting for %f
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Documentation=man:bcachefs(8)
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[Service]
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Type=oneshot
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Environment=EMAIL_ADDR=root
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ExecStart=@libdir@/bcachefsck_fail "${EMAIL_ADDR}" bcachefs %f
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User=mail
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Group=mail
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SupplementaryGroups=systemd-journal
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# Create the service underneath the background service slice so that we can
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# control resource usage.
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Slice=system-bcachefsck.slice
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# No realtime scheduling
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RestrictRealtime=true
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# Make the entire filesystem readonly and /home inaccessible.
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ProtectSystem=full
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ProtectHome=yes
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PrivateTmp=true
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RestrictSUIDSGID=true
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# Emailing reports requires network access, but not the ability to change the
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# hostname.
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ProtectHostname=true
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# Don't let the program mess with the kernel configuration at all
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ProtectKernelLogs=true
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ProtectKernelModules=true
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ProtectKernelTunables=true
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ProtectControlGroups=true
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ProtectProc=invisible
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RestrictNamespaces=true
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# Can't hide /proc because journalctl needs it to find various pieces of log
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# information
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#ProcSubset=pid
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# Only allow the default personality Linux
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LockPersonality=true
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# No writable memory pages
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MemoryDenyWriteExecute=true
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# Don't let our mounts leak out to the host
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PrivateMounts=true
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# Restrict system calls to the native arch and only enough to get things going
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SystemCallArchitectures=native
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SystemCallFilter=@system-service
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SystemCallFilter=~@privileged
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SystemCallFilter=~@resources
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SystemCallFilter=~@mount
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# xfs_scrub needs these privileges to run, and no others
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CapabilityBoundingSet=
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NoNewPrivileges=true
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# Failure reporting shouldn't create world-readable files
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UMask=0077
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# Clean up any IPC objects when this unit stops
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RemoveIPC=true
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# No access to hardware device files
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PrivateDevices=true
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ProtectClock=true
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