Commits on May 15, 2024

1. snapshot: fix error on proxy driver when switching different snapshotter …

   During image pull, the containerd client calls Prepare API with the label containerd.io/snapshot.ref.
   When an image is pulled by other snapshotter, containerd doesn't send the label "containerd.io/snapshot.ref" to
   nydus snapshotter to let snapshotter prepare ro layers.
   Consequently, the code logic in nydus snapshotter cannot find label "containerd.io/snapshot/nydus-proxy-mode"
   and the logic of guest pull (proxy) is skipped.
   This occurs while reading the label data of parent snapshots(ro layers) during the preparation of the active snapshot(rw layer).
   Thus, when the snapshotter driver is configured to proxy mode, nydus snapshotter is compelled to implement the proxy logic.
   
   Fixes: containerd#592
   
   Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>

   

   ChengyuZhu6 committed May 15, 2024
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