docs: document SELinux labels for CSI volumes - #730
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CSI drivers mount the volumes they provision, so Talos cannot label them. Document setting the label through StorageClass mountOptions, and which drivers this works with. Also mark the SecurityState example on the same page as shellsession. The style checker rejects a `$` prompt in a shell block, and that block contains command output, so it keeps the prompt. Link: siderolabs/talos#14182 Signed-off-by: Ivan Demchuk <ivan.demchuk@gmail.com>
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smira
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| SELinux can be put in enforcing mode (to actually prevent access when it is not authorized by the policy) by adding `enforcing=1` to the kernel cmdline. | ||
| This is most commonly done via the configuration in the Image Factory. | ||
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| ### CSI volumes |
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Should I remove this from 1.12 docs?
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we will not backport that far, 1.12 is going out of support
smira
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Sep 2, 2026
| SELinux can be put in enforcing mode (to actually prevent access when it is not authorized by the policy) by adding `enforcing=1` to the kernel cmdline. | ||
| This is most commonly done via the configuration in the Image Factory. | ||
|
|
||
| ### CSI volumes |
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this should work properly in 1.13.10+
smira
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What
Documents how to give CSI-provisioned volumes an SELinux label, as a new
### CSI volumessubsection on the Talos SELinux page.
Why
Talos does not mount CSI volumes, so it cannot label them and pods cannot access their contents.
The label can be set through StorageClass
mountOptionsinstead, which reaches the driver as amount option. That was not documented anywhere.
Requested by @dsseng in
siderolabs/talos#14182 (comment) (the mount permission
this relies on landed in siderolabs/talos#14207).
NFS and SMB are deliberately not covered here, since siderolabs/talos#13987 is still in flight for
those.
Change
Adds the subsection to
security/selinux.mdxin v1.12, v1.13 and v1.14, per the current,previous and upcoming versioning policy. Identical text in all three.
Also marks the
SecurityStateexample on the same page asshellsession.style-check-changedreads the whole of any changed file and rejects a$prompt in ashellblock, and that block contains command output, so it keeps the prompt.
No nav or
docs.jsonchange: the page is already listed.Testing
Ran the four
docs-cichecks locally againstorigin/mainand all four pass, with 0 errors and0 warnings on the three changed files and
docs.jsonregenerating unchanged. The two externallinks were checked by hand, since
make broken-linksonly resolves internal ones. Drafted withClaude Code. The claim about which drivers pass mount options through comes from my own clusters
(OpenEBS LocalPV-LVM on ext4, OpenEBS Mayastor on xfs) rather than from upstream documentation.