How to push a Docker image to a Docker registry?

First, you need to have a Docker image built on your local machine. You can do this by running the docker build command with the appropriate options and arguments.

Next, you need to tag your image with the appropriate name and version. You can do this by running the docker tag command.

Finally, you can push your image to the registry by running the docker push command. You will need to specify the name and version of the image you want to push, as well as the address of the registry and any necessary authentication credentials.

Here's an example command sequence for pushing an image to Docker Hub:

# Build the Docker image
docker build -t my-image .

# Tag the image with the appropriate name and version
docker tag my-image my-username/my-image:1.0.0

# Log in to Docker Hub (you will need to provide your Docker Hub credentials)
docker login

# Push the image to Docker Hub
docker push my-username/my-image:1.0.0

This will push the my-image Docker image, tagged with version 1.0.0, to Docker Hub under the repository belonging to the user my-username.