Set up the Operator Node on Oracle Linux 8

Set up the operator node on an Oracle Linux 8 host. The operator node is used to perform an installation of Oracle Cloud Native Environment and a Kubernetes cluster.

Note:

The Oracle Linux yum server is used to install the Oracle Cloud Native Environment software packages. If the systems to be used in the environment are subscribed to the Unbreakable Linux Network (ULN), use the full installation steps outlined in Installation.

To set up the operator node on Oracle Linux 8:

Install the oracle-olcne-release-el8 release package:
```
sudo dnf install oracle-olcne-release-el8
```

Enable the yum repositories.

For hosts running UEK R7, use:

sudo dnf config-manager --enable ol8_olcne18 ol8_addons ol8_baseos_latest ol8_appstream ol8_kvm_appstream ol8_UEKR7

For hosts running UEK R6, use:

sudo dnf config-manager --enable ol8_olcne18 ol8_addons ol8_baseos_latest ol8_appstream ol8_kvm_appstream ol8_UEKR6

For hosts running RHCK, use:

sudo dnf config-manager --enable ol8_olcne18 ol8_addons ol8_baseos_latest ol8_appstream ol8_kvm_appstream

Disable the yum repositories for previous Oracle Cloud Native Environment releases.

sudo dnf config-manager --disable ol8_olcne17 ol8_olcne16 ol8_olcne15 ol8_olcne14 ol8_olcne13 ol8_olcne12

Disable any developer yum repositories. To list the developer repositories that need to be disabled, use the dnf repolist command:
```
sudo dnf repolist --enabled | grep developer
```
Disable the repositories returned using the dnf config-manager tool. For example:
```
sudo dnf config-manager --disable ol8_developer
```
Install the olcnectl software package:
```
sudo dnf install olcnectl
```