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Until now, the read-only file system set up by ‘call-with-container’
would always be writable. With this change, it can be made read-only.
With this patch, only ‘least-authority-wrapper’ switches to a read-only
root file system.
* gnu/build/linux-container.scm (remount-read-only): New procedure.
(mount-file-systems): Add #:writable-root? and #:populate-file-system
and honor them.
(run-container): Likewise.
(call-with-container): Likewise.
* gnu/system/linux-container.scm (container-script): Pass #:writable-root?
to ‘call-with-container’.
(eval/container): Add #:populate-file-system and #:writable-root? and
honor them.
* guix/scripts/environment.scm (launch-environment/container):
Pass #:writable-root? to ‘call-with-container’.
* guix/scripts/home.scm (spawn-home-container): Likewise.
* tests/containers.scm ("call-with-container, mnt namespace, read-only root")
("call-with-container, mnt namespace, writable root"): New tests.
Change-Id: I603e2fd08851338b737bb16c8af3f765e2538906
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| .. | ||
| bootloader | ||
| build | ||
| home | ||
| installer | ||
| machine | ||
| packages | ||
| services | ||
| system | ||
| tests | ||
| artwork.scm | ||
| bootloader.scm | ||
| ci.scm | ||
| compression.scm | ||
| home.scm | ||
| image.scm | ||
| installer.scm | ||
| local.mk | ||
| machine.scm | ||
| packages.scm | ||
| services.scm | ||
| system.scm | ||
| tests.scm | ||