1. Build a docker image

docker build -t dockerHubUserName/first-image:0.0.1 .

( dockerHubUserName is docker Username, first-image is the project name, 0.0.1 is the tag (versions) and . represent current directory )

2. Login in Docker

docker login

-> provide id and password

3. push code in docker hub

docker push iamatif96/eureka-serveer:0.0.1