not found: manifest unknown: manifest unknown

root@cloud:~# docker pull ubuntu:5000/igh:0.1.0
Error response from daemon: manifest for ubuntu:5000/igh:0.1.0 not found: manifest unknown: manifest unknown
root@cloud:~# docker pull ubuntu:5000/igh:0.1.0
Error response from daemon: manifest for ubuntu:5000/igh:0.1.0 not found: manifest unknown: manifest unknown
root@cloud:~# 

root@cloud:~# curl -X GET http://ubuntu:5000/v2/_catalog
{"repositories":["karmada-agent","karmada-controller-manager","karmada-scheduler","karmada-webhook"]}
root@cloud:~# 

执行docker push

root@ubuntu:~/crd_demo/artifacts# docker push ubuntu:5000/igh:0.1.0
The push refers to repository [ubuntu:5000/igh]
8b489f784c35: Pushed 
54d3ae080bc8: Pushed 
26381f80c26d: Mounted from karmada-agent 
cd3761cfa1d9: Mounted from karmada-agent 
0.1.0: digest: sha256:6aea7c83e2fbbb182348beab491934c9726c60fba8b76af6f39ab120235bfde3 size: 1157

root@cloud:~# docker pull ubuntu:5000/igh:0.1.0
0.1.0: Pulling from igh
5f621e34cdf4: Already exists 
8769118dfe59: Already exists 
c4073786b3a7: Pull complete 
bf165bdbcb3d: Pull complete 
Digest: sha256:6aea7c83e2fbbb182348beab491934c9726c60fba8b76af6f39ab120235bfde3
Status: Downloaded newer image for ubuntu:5000/igh:0.1.0
ubuntu:5000/igh:0.1.0
root@cloud:~#