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integration: reuse tmpfs for directory masks

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Co-authored-by: Davanum Srinivas <davanum@gmail.com>
Signed-off-by: lifubang <lifubang@acmcoder.com>
This commit is contained in:
lifubang
2026-05-12 04:17:27 +00:00
committed by lfbzhm
parent c046c9b973
commit 124772f354
1 changed files with 31 additions and 1 deletions
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tests/integration/mask.bats
+31 -1
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@@ -6,7 +6,7 @@ function setup() {
setup_busybox
# Create fake rootfs.
mkdir rootfs/testdir
mkdir rootfs/testdir rootfs/testdir2 rootfs/testdir3
echo "Forbidden information!" >rootfs/testfile
# add extra masked paths
@@ -87,3 +87,33 @@ function teardown() {
# so we merely check that it fails, and do not check the exact error
# message like for /proc above.
}
@test "mask paths [directories share tmpfs]" {
update_config '(.. | select(.maskedPaths? != null)) .maskedPaths += ["/testdir2", "/testdir3"]'
runc run -d --console-socket "$CONSOLE_SOCKET" test_busybox
[ "$status" -eq 0 ]
# shellcheck disable=SC2016
runc exec test_busybox sh -euc '
set -- $(stat -c %d /testdir /testdir2 /testdir3)
[ "$1" = "$2" ]
[ "$2" = "$3" ]
'
[ "$status" -eq 0 ]
runc exec test_busybox touch /testdir2/foo
[ "$status" -eq 1 ]
[[ "${output}" == *"Read-only file system"* ]]
}
@test "mask paths [directory with read-only rootfs]" {
update_config '(.. | select(.maskedPaths? != null)) .maskedPaths += ["/testdir2", "/testdir3"]'
update_config '.root.readonly = true'
runc run -d --console-socket "$CONSOLE_SOCKET" test_busybox
[ "$status" -eq 0 ]
runc exec test_busybox ls /testdir
[ "$status" -eq 0 ]
[ -z "$output" ]
}