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virtcontainers: Use FilesystemSharer for sharing the containers files

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Switching to the generic FilesystemSharer brings 2 majors improvements:

1. Remove container and sandbox specific code from kata_agent.go
2. Allow for non Linux implementations to provide ways to share
   container files and root filesystems with the Kata Linux guest.

Fixes #3622

Signed-off-by: Samuel Ortiz <s.ortiz@apple.com>
This commit is contained in:
Samuel Ortiz
2022-02-04 10:25:55 +00:00
committed by Samuel Ortiz
parent 533c1c0e86
commit 1103f5a4d4
5 changed files with 62 additions and 257 deletions
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13
src/runtime/virtcontainers/mount.go
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@@ -388,6 +388,19 @@ func bindUnmountContainerSnapshotDir(ctx context.Context, sharedDir, cID string)
return bindUnmountContainerShareDir(ctx, sharedDir, cID, snapshotDir)
}
func getVirtiofsDaemonForNydus(sandbox *Sandbox) (VirtiofsDaemon, error) {
var virtiofsDaemon VirtiofsDaemon
switch sandbox.GetHypervisorType() {
case string(QemuHypervisor):
virtiofsDaemon = sandbox.hypervisor.(*qemu).virtiofsDaemon
case string(ClhHypervisor):
virtiofsDaemon = sandbox.hypervisor.(*cloudHypervisor).virtiofsDaemon
default:
return nil, errNydusdNotSupport
}
return virtiofsDaemon, nil
}
func nydusContainerCleanup(ctx context.Context, sharedDir string, c *Container) error {
sandbox := c.sandbox
virtiofsDaemon, err := getVirtiofsDaemonForNydus(sandbox)