1) docker tag nginx:latest unix1998/repo_2019:nginx_test1 nginx:latest is an image in your local server, can be any other unix1998/repo_2019:nginx_test1 unix1998 is user id in dcoekr hub, repo_2019 is repo name created in unix1998 @ docker hub 2) docker push unix1998/repo_2019:nginx_test1 will be OK |