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Flaky SBR tests due to routes with link-local IP #1096

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LionelJouin opened this issue Sep 20, 2024 · 1 comment · Fixed by #1102
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Flaky SBR tests due to routes with link-local IP #1096

LionelJouin opened this issue Sep 20, 2024 · 1 comment · Fixed by #1102

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@LionelJouin
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LionelJouin commented Sep 20, 2024 •
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Here is an example of fail test run: https://github.com/containernetworking/plugins/actions/runs/10952855591/job/30412240836?pr=1092

This is due to a route with the link-local IP being automatically added after the test run saves the initial state (routes before SBR plugin is ran). When the SBR plugin is ran, the new state is compared with the old state. The new state will then contain the route with the link-local IP (that has been added after saving the old state), the old state was not containing it, so the tests were failing

A solution would be to ignore routes with the link-local IP for the tests, or to somehow wait for the routes with the link-local IP to be created.
@LionelJouin LionelJouin changed the title Flacky SBR tests due to routes with link-local IP Flaky SBR tests due to routes with link-local IP Sep 20, 2024
@LionelJouin LionelJouin mentioned this issue Sep 20, 2024
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squeed commented Sep 30, 2024

We talked about this at the meeting; we will just ignore link-local routes in the tests.

the issue, unsurprisingly, is ipv6 DAD.

LionelJouin added a commit to LionelJouin/plugins that referenced this issue Sep 30, 2024
@LionelJouin
Ignore link-local routes in SBR tests
82cc11a 
The tests were flaky due to a route with the link-local IP being
automatically added after the test run saves the initial state
(routes before SBR plugin is ran). When the SBR plugin is ran,
the new state is compared with the old state. The new state will
then contain the route with the link-local IP (that has been
added after saving the old state), the old state was not
containing it, so the tests were failing

The solution here is to ignore routes with the link-local IP
for the tests.

fixes: containernetworking#1096

Signed-off-by: Lionel Jouin <lionel.jouin@est.tech>
@LionelJouin LionelJouin mentioned this issue Sep 30, 2024
Merged
squeed pushed a commit that referenced this issue Sep 30, 2024
@LionelJouin @squeed
Ignore link-local routes in SBR tests
c11ed48 
The tests were flaky due to a route with the link-local IP being
automatically added after the test run saves the initial state
(routes before SBR plugin is ran). When the SBR plugin is ran,
the new state is compared with the old state. The new state will
then contain the route with the link-local IP (that has been
added after saving the old state), the old state was not
containing it, so the tests were failing

The solution here is to ignore routes with the link-local IP
for the tests.

fixes: #1096

Signed-off-by: Lionel Jouin <lionel.jouin@est.tech>
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Ignore link-local routes in SBR tests LionelJouin/plugins
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@squeed @LionelJouin