1.master 上执行push命令：
# docker login -uadmin http://registry.k8s.com
# docker push registry.k8s.com/infra/nginx:v2.1.1
The push refers to repository [registry.k8s.com/infra/nginx]
1db092a7cab5: Layer already exists
f4ca0997350d: Layer already exists
93523b709471: Layer already exists
488fd4e57ce2: Layer already exists
e1e4fac4e14a: Layer already exists
74ddd0ec08fa: Layer already exists
invalid checksum digest format
# docker --version
Docker version 19.03.9, build 9d988398e7
docker日志报错内容：
Apr 26 14:12:12 cephnode01 dockerd: time="2022-04-26T14:12:12.749400357+08:00" level=warning msg="failed to upload schema2 manifest: invalid checksum digest format - falling back to schema1"
Apr 26 14:12:12 cephnode01 dockerd: time="2022-04-26T14:12:12.756850903+08:00" level=info msg="Attempting next endpoint for push after error: invalid checksum digest format"
2.其它节点push报错提示：
#docker login -uadmin http://registry.k8s.com
# docker push registry.k8s.com/infra/nginx:v2.0.0
The push refers to repository [registry.k8s.com/infra/nginx]
f4ca0997350d: Retrying in 1 second
93523b709471: Retrying in 1 second
488fd4e57ce2: Retrying in 1 second
e1e4fac4e14a: Retrying in 1 second
74ddd0ec08fa: Retrying in 1 second
received unexpected HTTP status: 200 OK
docker日志报错：
dockerd: time="2022-04-26T14:24:14.387702486+08:00" level=error msg="Upload failed, retrying: received unexpected HTTP status: 200 OK"
dockerd: time="2022-04-26T14:24:34.393605170+08:00" level=error msg="Upload failed: received unexpected HTTP status: 200 OK"
dockerd: time="2022-04-26T14:24:34.393798800+08:00" level=error msg="Upload failed: received unexpected HTTP status: 200 OK"
dockerd: time="2022-04-26T14:24:34.394635634+08:00" level=error msg="Upload failed: received unexpected HTTP status: 200 OK"
dockerd: time="2022-04-26T14:24:34.395205797+08:00" level=error msg="Upload failed: received unexpected HTTP status: 200 OK"
dockerd: time="2022-04-26T14:24:34.395249868+08:00" level=info msg="Attempting next endpoint for push after error: received unexpected HTTP status: 200 OK"
应该是docker哪里的问题，一直没找到原因，网上也没有具体案例，求助各位大佬!!!
