Port Mapping in docker| How to map port from container to host | Docker | Learn Docker in Easy Steps

In this video you will learn How to map port from container to docker host or server and how to do port mapping in docker.
Assigning a Port Mapping to a Running Docker Container

Topic:
If we want to communicate with a Docker container from our host machine, we need to have a port mapping. Sometimes, we may start a container without mapping a port that we need later on.

In this tutorial, we’ll discuss the importance of port mapping in Docker. We’ll look into different ways of adding a new port mapping once a Docker container is launched.
Port mapping is used to access the services running inside a Docker container. We open a host port to give us access to a corresponding open port inside the Docker container. Then all the requests that are made to the host port can be redirected into the Docker container.

Port mapping makes the processes inside the container available from the outside.

While running a new Docker container, we can assign the port mapping in the docker run command using the -p option:
docker run -d -p 81:80 --name httpd-container httpd

#docker #dockerarchitecture #dockertraining #dockercontainer

[deepakranjanmishra]

Let there an application running inside a docker container . How will the end user access it. Also how will I get the host port.
Please also give some idea on the host port.
Thank you