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Add manual overrides for container user namespaces. #891

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merged 1 commit into from
Jul 1, 2022

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Alexhuszagh
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@Alexhuszagh Alexhuszagh commented Jul 1, 2022

Support manual overrides of the container user namespace via the CROSS_CONTAINER_USER_NAMESPACE environment variable. If not set or set to auto, it will use the default value for the container engine (host). If none is provided, no --userns flag will be used. If any other value is provided, that will be the value passed to --userns.

This is required for using lima/nerdctl, which currently does not support the --userns flag.

Related to #888.

Comment on lines 413 to 414
None | Some("auto") if !is_nerdctl => Some("host".to_string()),
None | Some("auto") | Some("none") => None,
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1.62 bool::then_some would work nicely here

@Emilgardis
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Emilgardis commented Jul 1, 2022

I don't know if we should explicitly support this. Maybe instead it should be more that the ContainerEngine is custom (i.e any random binary)

edit: "this" being Lima, the ns stuff is good

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I don't know if we should explicitly support this. Maybe instead it should be more that the ContainerEngine is custom (i.e any random binary)

Maybe, we should probably at least support changing the user namespace, which would be necessary for lima support right now. But you're probably right: there's too many niche things here that can be covered in a more general case. Just keep the user namespace manual overrides, get rid of everything else?

@Alexhuszagh Alexhuszagh mentioned this pull request Jul 1, 2022
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Just keep the user namespace manual overrides, get rid of everything else?

yep, sounds good to me

@Alexhuszagh Alexhuszagh changed the title Add Lima (Nerdctl) support. Add manual overrides for container user namespaces. Jul 1, 2022
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lgtm

Support manual overrides of the container user namespace via the `CROSS_CONTAINER_USER_NAMESPACE` environment variable. If not set or set to `auto`, it will use the default value for the container engine (`host`). If `none` is provided, no `--userns` flag will be used. If any other value is provided, that will be the value passed to `--userns`.

This is required for using lima/nerdctl, which currently does not support the `--userns` flag.

Related to cross-rs#888.
@Alexhuszagh
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bors r=Emilgardis

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bors bot commented Jul 1, 2022

Build succeeded:

@bors bors bot merged commit 6facb8f into cross-rs:main Jul 1, 2022
@Emilgardis Emilgardis modified the milestone: v0.2.3 Jul 4, 2022
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2 participants