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7428832c86
Configure containerd for nydus differently depending on the active
config schema, because conf.d drop-in fragments are only honoured the
same way by containerd 2.x.
config_containerd now delegates to _containerd_resolved_schema_version
(from common.bash) to detect the active schema and passes it to
config_containerd_core, which emits schema-appropriate config:
schema >= 3 (containerd v2.x):
Keep the base config and add a conf.d drop-in fragment using the
io.containerd.cri.v1.runtime plugin (sandboxer = 'podsandbox') and
io.containerd.cri.v1.images to select nydus as the snapshotter.
schema 2 (containerd v1.x):
conf.d is not honoured the same way, so replace config.toml
wholesale with a complete, self-contained file using the
io.containerd.grpc.v1.cri plugin with nydus as the snapshotter and
no sandboxer field.
The [proxy_plugins] block is written in both cases as it is
schema-version agnostic.
Teardown restores the whole config.toml (schema v2 path) or removes the
drop-in fragment (schema v3+ path) as appropriate.
Signed-off-by: Fabiano Fidêncio <ffidencio@nvidia.com>
Assisted-by: Cursor <noreply@cursor.com>