Docker Containers

Docker containers are the instances of Docker images that can be run and managed. They provide a lightweight and isolated environment for running applications.

Starting a Docker Container

To start a Docker container, you can use the docker run command followed by the name or ID of the Docker image. For example, to start a container from an image named my-app, you would use the following command:

1$ docker run my-app

This command will create and start a container from the my-app image.

1// Starting a Docker container
2System.out.println("Starting a Docker container");
3// Code to start a Docker container

Stopping a Docker Container

To stop a running Docker container, you can use the docker stop command followed by the name or ID of the container. For example, to stop a container named my-container, you would use the following command:

1$ docker stop my-container

This command will stop the my-container container.

1// Stopping a Docker container
2System.out.println("Stopping a Docker container");
3// Code to stop a Docker container

Managing Docker Containers

Docker provides various commands and options to manage containers. Some common management tasks include:

• Listing containers: Use the docker ps command to list all running containers.
• Inspecting containers: Use the docker inspect command followed by the container name or ID to get detailed information about a specific container.
• Removing containers: Use the docker rm command followed by the container name or ID to remove a container.

1// Managing Docker containers
2System.out.println("Managing Docker containers");
3// Code to manage Docker containers

Docker containers provide an efficient and consistent way to package, deploy, and manage applications. By using Docker, you can easily create and manage containers for your Java microservices and deploy them to the cloud for scalable and reliable application deployment.

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class Main {

  public static void main(String[] args) {

    // Starting a Docker container

    System.out.println("Starting a Docker container");

    // Code to start a Docker container

​

    // Stopping a Docker container

    System.out.println("Stopping a Docker container");

    // Code to stop a Docker container

​

    // Managing Docker containers

    System.out.println("Managing Docker containers");

    // Code to manage Docker containers

  }

}