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Docker port mapping

In order to actually benefit from the container, we need to make it publicly accessible from the outside. This is where we will need to use the -p option with a few arguments while running the docker run command:

$ docker run -d -p 8080:80 httpd
3b1150b5034329cd9e70f90ee21531b8b1ab1d4a85141fd3a362cd40db80e193

Option -p maps container port 80 to your server port 8080. Verify that you have a httpd container exposed and a web server running:

$ curl localhost:8080
<html><body><h1>It works!</h1></body></html>

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