<p>What do I need to run / install kubernetes on a node (I refer to linux-kernel level)?, if I have a custom linux distribution with docker installed (from source), can I run k8s on it, or it needs specific kernel config/flags to be enabled ?</p>

<p>Is any linux-kernel compatible with docker isalso compatible with k8s, or there are some more modifications at a kernel level (since actually k8s supports specific distros like Ubuntu, CentOS, Debian.... but not all)? </p>

josemareina
<p>I have recently applied internal service deployment process in develop environment at work, using internal kubernetes cluster on top of Centos7.
I am also a beginner but as far as I know,</p>

<p>if I have a custom linux distribution with docker installed (from source), could I ran k8s on it??</p>

<ul>
<li>Yes. you can install and run kubernetes cluster on a custom linux distribution, but your linux distribution needs to meet the minimum requirements such as kernel version(3.10+).
(ie Ubuntu16.04+ .. Centos 7)</li>
</ul>

<p>Any linux-kernel compatible with docker is compatible too with k8s, or there are more modifications at kernel level (since actually k8s supports sepecifics dists like Ubuntu, CentOS, Debian.... but not any)?</p>

<ul>
<li>Since kubernetes does not run any container but let containers communicate one another within the clustered hosts, I agree with the former (Any linux-kernel compatible with docker is compatible too with k8s). (Resource requirement is a different question.)</li>
</ul>

<p>FYI, My cluster uses:</p>

<pre class="lang-sh prettyprint-override"><code>$ cat /etc/redhat-release
CentOS Linux release 7.6.1810 (Core)

$ uname -a
Linux k8s-master.local 3.10.0-957.10.1.el7.x86_64 #1 SMP Mon Mar 18 15:06:45 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

$ docker --version
Docker version 18.09.5, build e8ff056

$ kubectl version
Client Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.1", GitCommit:"b7394102d6ef778017f2ca4046abbaa23b88c290", GitTreeState:"clean", BuildDate:"2019-04-08T17:11:31Z", GoVersion:"go1.12.1", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.6", GitCommit:"96fac5cd13a5dc064f7d9f4f23030a6aeface6cc", GitTreeState:"clean", BuildDate:"2019-08-19T11:05:16Z", GoVersion:"go1.12.9", Compiler:"gc", Platform:"linux/amd64"}

$ kubeadm version
kubeadm version: &amp;version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.1", GitCommit:"b7394102d6ef778017f2ca4046abbaa23b88c290", GitTreeState:"clean", BuildDate:"2019-04-08T17:08:49Z", GoVersion:"go1.12.1", Compiler:"gc", Platform:"linux/amd64"}

$ kubelet --version
Kubernetes v1.14.1

</code></pre>
