首先給鏡像打上標簽，很重要?。?！
[root@docker ~]# docker tag fuchao:latest 127.0.0.1:5000/cangku_ceshi

docker tag 鏡像：標簽 ip：端口/自定義的name

上傳到私有倉庫
[root@docker ~]# docker push 127.0.0.1:5000/cangku_ceshi
The push refers to a repository [127.0.0.1:5000/cangku_ceshi] (len: 1)
Sending image list
Pushing repository 127.0.0.1:5000/cangku_ceshi (1 tags)
895b070402bd: Image successfully pushed
02e5bca4149b: Image successfully pushed
b2ae0a712b39: Image successfully pushed
af88597ec24b: Image successfully pushed
8be9f7652ab5: Image successfully pushed
Pushing tag for rev [8be9f7652ab5] on {http://127.0.0.1:5000/v1/repositories/cangku_ceshi/tags/latest}
[root@docker ~]#

從私有倉庫下載

[root@docker ~]# docker pull 127.0.0.1:5000/cangku_ceshi
Using default tag: latest
8be9f7652ab5: Download complete
895b070402bd: Download complete
02e5bca4149b: Download complete
b2ae0a712b39: Download complete
af88597ec24b: Download complete
Status: Image is up to date for 127.0.0.1:5000/cangku_ceshi:latest

[root@docker ~]#

上面的不僅本機可以 別的電腦也可以。上傳、下載。