Where and how do you run the built application image?

The assembled application image is usually run in a containerization environment, such as with Docker or Kubernetes.

1. Locally with Docker:

   • Make sure Docker is installed.
   • Run the image with the command:

     docker run -d --name myapp -p 8080:80 myapp-image
     

   • Here, -d runs the container in the background, -p forwards the port.

2. In the cloud or on a server:

   • The image can be uploaded to a registry (Docker Hub, AWS ECR, GitLab Registry).
   • On the server or in the cloud, execute docker pull and run the container.

3. In Kubernetes:

   • Create a Deployment specifying the image.
   • Apply manifests via kubectl apply.

Thus, the launch depends on the infrastructure, but a container manager is used everywhere to run the image.