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Proper cleanup when terminating your application isn’t less important when it’s running inside of a Docker container. Although it only comes down to making sure signals reach your application and handling them, there’s a bunch of things that can go wrong.

In principle it’s really simple: when you – or your cluster management tool – run docker stop, Docker sends a configurable signal to the entrypoint of your application; with SIGTERM being the default. While dockerizing my applications I’ve identified four traps (but stepped only into three of them!) that I’d like to share in order to save you some time when investigating.

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asked 27 Mar, 16:18

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路人甲
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