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Wait with making /etc unwritable until after build env setup

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This fixes /etc/nsswitch.conf

(cherry picked from commit bbba49b3e4)
This commit is contained in:
Yorick van Pelt 2023-02-17 16:31:55 +01:00 committed by github-actions[bot]
parent 1083ecbb2b
commit 11522a573d
1 changed files with 4 additions and 4 deletions
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8
src/libstore/build/local-derivation-goal.cc
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@ -1024,10 +1024,6 @@ void LocalDerivationGoal::startBuilder()
"nobody:x:65534:65534:Nobody:/:/noshell\n",
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
*before* the child does a chroot. */
sandboxMountNamespace = open(fmt("/proc/%d/ns/mnt", (pid_t) pid).c_str(), O_RDONLY);
@ -1912,6 +1908,10 @@ void LocalDerivationGoal::runChild()
}
}
/* Make /etc unwritable */
if (!parsedDrv->useUidRange())
chmod_(chrootRootDir + "/etc", 0555);
/* Unshare this mount namespace. This is necessary because
pivot_root() below changes the root of the mount
namespace. This means that the call to setns() in