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docs(README): security tips for docker images best practices

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Liran Tal 2019-03-12 11:32:22 +02:00 • committed by GitHub
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@ -529,6 +529,8 @@ See the [Docker Security Cheat Sheet](https://github.com/konstruktoid/Docker/blo
Check out the [docker bench security script](https://github.com/docker/docker-bench-security), download the [white papers](https://blog.docker.com/2015/05/understanding-docker-security-and-best-practices/).
Snyk's [10 Docker Image Security Best Practices cheat sheet](https://snyk.io/blog/10-docker-image-security-best-practices/)
You should start off by using a kernel with unstable patches for grsecurity / pax compiled in, such as [Alpine Linux](https://en.wikipedia.org/wiki/Alpine_Linux). If you are using grsecurity in production, you should spring for [commercial support](https://grsecurity.net/business_support.php) for the [stable patches](https://grsecurity.net/announce.php), same as you would do for RedHat. It's $200 a month, which is nothing to your devops budget.
Since docker 1.11 you can easily limit the number of active processes running inside a container to prevent fork bombs. This requires a linux kernel >= 4.3 with CGROUP_PIDS=y to be in the kernel configuration.