Editing Initializing the Kubernetes cluster (section)

== Kubernetes and pre-requisites (every node) ==

Install Kubernetes on Ubuntu 18.04. Assuming version 1.14.3 is pulled, check how to fix version. On new systems, copy over the install script from the master node.

<syntaxhighlight lang="bash">
> cd init
> ./install_kubernetes.sh
</syntaxhighlight>

Reconfigure docker runtime. Edit /etc/docker/daemon.json as follows:
<syntaxhighlight lang="bash">
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "storage-driver": "overlay2"
}
</syntaxhighlight>

On nodes with an nVidia GPU, add the following:

<syntaxhighlight lang="bash">
  "default-runtime": "nvidia",
  "default-shm-size": "1g",
  "runtimes": {
    "nvidia": {
      "path": "nvidia-container-runtime",
      "runtimeArgs": []
    }
  }
</syntaxhighlight>

Restart docker daemon:
<syntaxhighlight lang="bash">
> mkdir -p /etc/systemd/system/docker.service.d
> systemctl daemon-reload
> systemctl restart docker
</syntaxhighlight>

Make sure swap is off
<syntaxhighlight lang="bash">
> sudo swapoff -a
</syntaxhighlight>
Check /etc/fstab if swap is still configured there, delete if this is the case.