What happens when you put your app in a Docker container
Linux namespaces: why a container thinks it is alone
A Docker container runs on a busy server, next to hundreds of other programs. From inside, the container sees none of them. It even believes that the name of the server is its own name.
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The container runs, but Miva still can't reach the request page. From the inside, the container sees nobody, so it thinks it is alone. Yet plenty of other processes run right next to it, on the same server.
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So the same server holds two pictures: the one the container sees, empty, and the real one, busy all around it. Someone hides the others from the container. But who?
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