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Make /etc writability conditional on uid-range feature

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(cherry picked from commit 49fd72a903)
This commit is contained in:
Yorick van Pelt 2023-02-14 13:29:30 +01:00 • committed by github-actions[bot]
parent 459832e5c2
commit bca7075edc
2 changed files with 4 additions and 2 deletions
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3
src/libstore/build/local-derivation-goal.cc
View file

@ -663,6 +663,8 @@ void LocalDerivationGoal::startBuilder()
nobody account. The latter is kind of a hack to support
Samba-in-QEMU. */
createDirs(chrootRootDir + "/etc");
if (parsedDrv->useUidRange())
chownToBuilder(chrootRootDir + "/etc");
if (parsedDrv->useUidRange() && (!buildUser || buildUser->getUIDCount() < 65536))
throw Error("feature 'uid-range' requires the setting '%s' to be enabled", settings.autoAllocateUids.name);
@ -1023,6 +1025,7 @@ void LocalDerivationGoal::startBuilder()
sandboxUid(), sandboxGid(), settings.sandboxBuildDir));
/* Make /etc unwritable */
if (!parsedDrv->useUidRange())
chmod_(chrootRootDir + "/etc", 0555);
/* Save the mount- and user namespace of the child. We have to do this

1
tests/systemd-nspawn.nix
View file

@ -56,7 +56,6 @@ runCommand "test"
# Make /run a tmpfs to shut up a systemd warning.
mkdir /run
mount -t tmpfs none /run
chmod 0700 /run
mount -t cgroup2 none /sys/fs/cgroup