Description: Port mapping is the process of redirecting a port from the host to a port in the container, allowing external access to the container’s services. This mechanism is fundamental in container environments, where services running inside a container are not directly accessible from the outside. By mapping a port, a connection is established between the host’s port and the container’s port, facilitating communication between applications and services. For example, if a container runs a web application on port 80, port mapping allows this port to be accessible through a specific host port, such as 8080. This is especially useful in various environments, where multiple containers may be running simultaneously, each with its own services and ports. Additionally, port mapping can be configured flexibly, allowing developers to choose which host ports will be used to access the container’s services, contributing to better resource management and security in IT infrastructure.
