libcontainer: config: validate default filesystems #1176
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According to the runtime-spec[1], some filesystems must be mounted in all containers'. So, add verification to make sure someone doesn't ask us to create a rootfs that is missing key features. [1]: https://github.com/opencontainers/runtime-spec/blob/v1.0.0-rc2/config-linux.md#default-filesystems Signed-off-by: Aleksa Sarai <[email protected]>
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Also, apparently |
| {Destination: "/sys"}, | ||
| {Destination: "/dev/shm"}, | ||
| {Destination: "/dev/pts"}, | ||
| }, |
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One more test to make it failed with invalid mount info?
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Sure. I'll do it tomorrow (have an exam tomorrow morning).
| dests[filepath.Clean(mount.Destination)] = true | ||
| } | ||
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| // From the spec. |
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nit: i think this comment is redundant.
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do we want to swap this validator package with https://github.com/opencontainers/runtime-tools. They are mostly the same . |
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@dqminh We validate |
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@cyphar yah i supposed that's fair. |
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LGTM |
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I don't know who added a Things like This is also weird because if we say that they are required then why even give the user the option to mess up. I would rather leave this as is and change the spec to a |
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@philips Could you take a look at this and let me know what you think since you added the section for these required filesystems? |
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Yes I have containers that really don't need or want these filesystems. They are required by (for example) most |
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In which case, can you please make a PR against the runtime specification to switch things to |
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We changed this in the spec to SHOULDs so we don't need this PR, it would have created many issues if we did validate this in the first place |
7 participants
According to the runtime-spec, some filesystems must be mounted in all
containers'. So, add verification to make sure someone doesn't ask us to
create a rootfs that is missing key features.
Signed-off-by: Aleksa Sarai [email protected]