reallocation-of-port.md

Method 1: Stop and Re-run the Container with New Ports

1. Stop the Running Container:

   docker stop <container_name_or_id>

2. Remove the Container:

   docker rm <container_name_or_id>

3. Run the Container with New Port Mappings:

   docker run -d -p <new_host_port>:<container_port> --name <container_name> <image_name>

Method 2: Use Docker Compose

If you are using Docker Compose, you can modify the docker-compose.yml file to change the ports and then apply the changes.

1. Edit docker-compose.yml:

   Change the port mapping under the service definition.

   services:
     your_service_name:
       ports:
         - "<new_host_port>:<container_port>"

2. Apply the Changes:

   docker-compose down
   docker-compose up -d

Method 3: Using docker network and docker run --network host

1. Stop the Running Container:

   docker stop <container_name_or_id>

2. Remove the Container:

   docker rm <container_name_or_id>

3. Run the Container with Network Mode Host:

   docker run -d --network host --name <container_name> <image_name>

   This way, the container will use the host's network stack, and you can change the exposed ports without needing to update the container.

• Choose the method that best suits your needs and workflow.