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7c83d42ef8
Instead of mounting over, do an atomic swap using mount beneath, if available. This way assets can be mounted again and again (e.g.: updates) without leaking mounts.
44 lines
1.7 KiB
Bash
Executable file
44 lines
1.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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# SPDX-License-Identifier: LGPL-2.1-or-later
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# shellcheck disable=SC2016
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set -eux
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set -o pipefail
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# Test adding new BindPaths while unit is already running
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at_exit() {
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set +e
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rm -f /run/testsuite-23-marker-{fixed,runtime}
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rm -fr /run/inaccessible
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}
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trap at_exit EXIT
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echo "MARKER_FIXED" >/run/testsuite-23-marker-fixed
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mkdir /run/inaccessible
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systemctl start testsuite-23-namespaced.service
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# Ensure that inaccessible paths aren't bypassed by the runtime setup,
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(! systemctl bind --mkdir testsuite-23-namespaced.service /run/testsuite-23-marker-fixed /run/inaccessible/testfile-marker-fixed)
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echo "MARKER_WRONG" >/run/testsuite-23-marker-wrong
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echo "MARKER_RUNTIME" >/run/testsuite-23-marker-runtime
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# Mount twice to exercise mount-beneath (on kernel 6.5+, on older kernels it will just overmount)
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systemctl bind --mkdir testsuite-23-namespaced.service /run/testsuite-23-marker-wrong /tmp/testfile-marker-runtime
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test "$(systemctl show -P SubState testsuite-23-namespaced.service)" = "running"
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systemctl bind --mkdir testsuite-23-namespaced.service /run/testsuite-23-marker-runtime /tmp/testfile-marker-runtime
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timeout 10 bash -xec 'while [[ "$(systemctl show -P SubState testsuite-23-namespaced.service)" == running ]]; do sleep .5; done'
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systemctl is-active testsuite-23-namespaced.service
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# Now test that systemctl bind fails when attempted on a non-namespaced unit
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systemctl start testsuite-23-non-namespaced.service
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(! systemctl bind --mkdir testsuite-49-non-namespaced.service /run/testsuite-23-marker-runtime /tmp/testfile-marker-runtime)
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timeout 10 bash -xec 'while [[ "$(systemctl show -P SubState testsuite-23-non-namespaced.service)" == running ]]; do sleep .5; done'
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(! systemctl is-active testsuite-23-non-namespaced.service)
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