What can be done with a Docker image after building?

After building a Docker image, you can perform the following actions:

• Run a container: create and run a container based on the image to execute the application.
• Upload to a registry: push the image to a Docker Registry (e.g., Docker Hub, private registry) for storage and subsequent distribution.
• Share with other developers or systems: exchange the image via the registry or export it to a file (docker save) and import it (docker load).
• Version and tag: assign tags to the image for easy version management.
• Use in CI/CD: integrate the image into continuous integration and delivery pipelines.

Example of uploading an image to Docker Hub:

docker tag myapp:latest myusername/myapp:v1.0
docker push myusername/myapp:v1.0