3.4.2 Setting up Kubernetes Nodes

The software described in this documentation is either no longer supported or is in extended support.
Oracle recommends that you upgrade to a current supported release.

3.4.2 Setting up Kubernetes Nodes

This section discusses setting up the nodes to use in a Kubernetes cluster. Perform these steps on both Kubernetes master and worker nodes.

To set up the Kubernetes nodes:

On each node to be added to the Kubernetes cluster, install the Platform Agent package and utilities.
```
$ sudo yum install olcne-agent olcne-utils
```
Enable the olcne-agent service, but do not start it. The olcne-agent service is started when you configure the X.509 Certificates.
```
$ sudo systemctl enable olcne-agent.service 
```
For information on configuration options for the Platform Agent, see Section 6.2, “Configuring the Platform Agent”.
If you use a proxy server, configure it with CRI-O. On each Kubernetes node, create a CRI-O systemd configuration directory:
```
$ sudo mkdir /etc/systemd/system/crio.service.d
```
Create a file named proxy.conf in the directory, and add the proxy server information. For example:
```
[Service]
Environment="HTTP_PROXY=proxy.example.com:3128"
Environment="HTTPS_PROXY=proxy.example.com:3128"
Environment="NO_PROXY=mydomain.example.com"
```
If the docker service is running, stop and disable it.
```
$ sudo systemctl disable --now docker.service
```
If the containerd service is running, stop and disable it.
```
$ sudo systemctl disable --now containerd.service
```