fix(smartctl_exporter): add kernel capabilities#711
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volker-raschek wants to merge 1 commit intoprometheus-community:mainfrom
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fix(smartctl_exporter): add kernel capabilities#711volker-raschek wants to merge 1 commit intoprometheus-community:mainfrom
volker-raschek wants to merge 1 commit intoprometheus-community:mainfrom
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The following patch adds the capabilities that the binary needs to access the disks without root privileges. The capabilities were determined using the following command. The process ID `1259363` is that of `smartctl_exporter` when it was previously executed as root. ```bash $ capsh --decode=$(grep CapBnd /proc/1259363/status | cut -f 2) 0x0000000000020004=cap_dac_read_search,cap_sys_rawio ``` The capabilities `CAP_DAC_READ_SEARCH` and `CAP_SYS_RAWIO` were added to the systemd unit, taking into account the systemd version. With this patch can be smartctl_exporter successfully started. Signed-off-by: Markus Pesch <markus.pesch@cryptic.systems>
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SuperQ
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Mar 6, 2026
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Could the capabilities be set on the binary itself like we do with the For reference: #729 Edit: I just remembered that I actually was working on a similar implementation here: https://github.com/prometheus-community/ansible/pull/629/changes#diff-94cc2fd2f52225dbe9db6ef1b16a27190ebc7a485c246bf013c1d0d6e9d86ebbR38 |
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The following patch adds the capabilities that the binary needs to access the disks without root privileges.
The capabilities were determined using the following command. The process ID
1259363is that ofsmartctl_exporterwhen it was previously executed as root.$ capsh --decode=$(grep CapBnd /proc/1259363/status | cut -f 2) 0x0000000000020004=cap_dac_read_search,cap_sys_rawioThe capabilities
CAP_DAC_READ_SEARCHandCAP_SYS_RAWIOwere added to the systemd unit, taking into account the systemd version.With this patch can be smartctl_exporter successfully started.
A similar patch for the prometheus-smartctl-exporter has already been accepted for the Arch Linux package.
https://gitlab.archlinux.org/archlinux/packaging/packages/prometheus-smartctl-exporter/-/commit/b872776265474e9bd8b69ff128c002cf4b005f44