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Mr.Wang from Next Door
Asked: 2017-07-03 21:35:32 +0800 CST

Do I need update docker image to fix kernel flaw?

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I have an application distributed as docker image basing on CentOS 7.

Also my host machine running the docker contains is CentOS 7.

Recently RedHat released 5 important patches to fix kernel flaws.

I have yum update the host machine

Do I need update the docker image with yum update? I guess kernel flaws won't affect docker containers, right?

docker

1 Answers

  1. Best Answer

    Docker Containers uses the Host Kernel, if it's just kernel stuff you should be ok. Here's a link to a question about if containers and hosts share kernel on Super User: https://superuser.com/questions/889472/docker-containers-have-their-own-kernel-or-not

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