libct/cgroups: support Cgroups.Resources.Unified #2584
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kolyshkin
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That intermittent download failure, again Wonder if there's a better alternative. For some reason, this never happens to any other URLs downloaded from github |
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Rebased |
AkihiroSuda
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Sep 11, 2020
... to include unified resources support. Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
As the underlying error message from iotuils.WriteFile already contains file name, there's no need to put it, otherwise we end up with something like: failed to write "val" to "/sys/fs/cgroup/.../file": open /sys/fs/cgroup/.../file: permission denied With this patch, the error will be failed to write "val": open /sys/fs/cgroup/.../file: permission denied Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
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AkihiroSuda
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Sep 17, 2020
AkihiroSuda
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Sep 17, 2020
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Added bats test with more unified parameters (using only |
AkihiroSuda
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Sep 21, 2020
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@giuseppe PTAL? |
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giuseppe
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Sep 22, 2020
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LGTM |
mrunalp
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Sep 24, 2020
mrunalp
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Sep 24, 2020
Add support for unified resource map (as per [1]), and add some test cases for the new functionality. [1] opencontainers/runtime-spec#1040 Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Container test_cgroups_group was missing from the teardown. Fixes: c91fe9a. Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Note that various invalid keys are covered by test cases in libcontainer/integration/exec_test.go Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
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mrunalp
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Sep 25, 2020
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@AkihiroSuda ptal |
AkihiroSuda
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Sep 26, 2020
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@kolyshkin Could you open an issue for tracking systemd issue? |
I'm not quite sure which way to go -- let's discuss in there |
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Add support for unified resource map (as per [1]), and add some test
cases for the new functionality.
[1] opencontainers/runtime-spec#1040
Fixes: #2563
The biggest issue, I think, is that the mapping of the "unified" parameters
to systemd properties is not implemented, meaning there can be cases
where systemd unit settings and in-kernel cgroup settings won't agree.
I don't think it can cause any issues, but it's just doesn't look right.