You can now select Oracle Linux 8 images to provision worker nodes in node pools running Kubernetes 1.20.x and later. For more information, see Supported Images.

Oracle Linux 8 supports Federal Information Processing Standards (FIPS), a set of standards and guidelines for federal computer systems. When using Oracle Linux 8 images, you can enable FIPS mode. For more information, see Configuring a System in FIPS Mode in the Oracle Linux 8 documentation.

Note that Docker is not included in Oracle Linux 8 images. Instead, in node pools running Kubernetes 1.20.x and later, Container Engine for Kubernetes installs and uses the CRI-O container runtime and the crictl CLI. For more information, see Notes about Container Engine for Kubernetes Support for Kubernetes Version 1.20.