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testutils: newNS() works in a rootless user namespace

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When running in a user namespace created by an unprivileged user the
owner of /var/run will be reported as the unknown user (as defined in
/proc/sys/kernel/overflowuid) so any access to the directory will
fail.

If the XDG_RUNTIME_DIR environment variable is set, check whether the
current user is also the owner of /var/run.  If the owner is different
than the current user, use the $XDG_RUNTIME_DIR/netns directory.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano
2019-10-17 13:20:32 +02:00
parent 411d060b81
commit 85083ea434
3 changed files with 26 additions and 3 deletions
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4
test_linux.sh
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@@ -57,3 +57,7 @@ if [ -n "${vetRes}" ]; then
echo -e "govet checking failed:\n${vetRes}"
exit 255
fi
# Run the pkg/ns tests as non root user
mkdir /tmp/cni-rootless
(export XDG_RUNTIME_DIR=/tmp/cni-rootless; cd pkg/ns/; unshare -rmn go test)