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Add capability for snapshotters to declare support for UID remapping

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This allows user namespace support to progress, either by allowing
snapshotters to deal with ownership, or falling back to containerd doing
a recursive chown.

In the future, when snapshotters implement idmap mounts, they should
report the "remap-ids" capability.

Co-authored-by: Rodrigo Campos <rodrigoca@microsoft.com>
Signed-off-by: Rodrigo Campos <rodrigoca@microsoft.com>
Signed-off-by: David Leadbeater <dgl@dgl.cx>
This commit is contained in:
David Leadbeater
2022-08-19 05:22:44 +00:00
committed by Rodrigo Campos
parent 36f520dc04
commit 31a6449734
14 changed files with 270 additions and 12 deletions
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5
pkg/cri/server/container_create.go
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@@ -184,7 +184,10 @@ func (c *criService) CreateContainer(ctx context.Context, r *runtime.CreateConta
log.G(ctx).Debugf("Container %q spec: %#+v", id, spew.NewFormatter(spec))
// Grab any platform specific snapshotter opts.
sOpts := snapshotterOpts(c.config.ContainerdConfig.Snapshotter, config)
sOpts, err := snapshotterOpts(c.config.ContainerdConfig.Snapshotter, config)
if err != nil {
return nil, err
}
// Set snapshotter before any other options.
opts := []containerd.NewContainerOpts{