kubespray/inventory/sample/group_vars/all/containerd.yml

---
# Please see roles/container-engine/containerd/defaults/main.yml for more configuration options

# Example: define registry mirror for docker hub

# containerd_config:
#   grpc:
#     max_recv_message_size: 16777216
#     max_send_message_size: 16777216
#   debug:
#     level: ""
#   registries:
#     "docker.io":
#       - "https://mirror.gcr.io"
#       - "https://registry-1.docker.io"
#   max_container_log_line_size: -1
#   metrics:
#     address: ""
#     grpc_histogram: false