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[No Audio]

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In this demo, we will map our host machine's port

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to container port. The command is fairly simple,

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as we just have to extend the run command with a flag.

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We will map our hosts port 8080 to container's port 80

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on tcp by mentioning it following -p.

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Notice that the image we used here is

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the one that we had created while working with expose instruction.

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Now when we run the containers,

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we will get the ports mentioned in the output.

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The output looks a bit messy, but the

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annotations should help here.

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Now, we'll create another container from the same image called cont

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cont_nginx-A

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Instead of providing ports and

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protocols like earlier, this time, we will just

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provide capital -P and allow Docker to map

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ports by itself. Here, it will use the information

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provided by expose instruction in the Dockerfile

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and Tally available ports from host machines network drivers.

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We can see that the new container port 80

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mapped from container to port 32768 of host.

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We can also view this information

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by hitting docker container port command followed by the container name.

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Finally, when we run local

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host on port 8080 on our web browser, we can see

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nginx homepage which indicates that our port mapping was successful.

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When we do the same with the other container,

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it shows the same thing as well.

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In next lecture, we'll clean up our workspace.