Kubernetes upgrade from v1.21.x to 1.22.x failing with error "does not recognize SELinux label"

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Environment

Rancher 2.6.x
K8S 1.21.x
RKE1 with SELinux is enabled

Situation

The RKE1 kubernetes version upgrade from v1.21.x to v1.22.x / latest from the Rancher UI is failing. The Rancher UI reporting the error below.

[[selinux] Host [xx.xx.xx.xx] does not recognize SELinux label [label=type:rke_container_t]. This is required for Kubernetes version [>=1.22.0-rancher0]. Please install rancher-selinux RPM package and try again]

Resolution

Make sure that the SELinux rpm is installed and updated to the latest version. The latest version is now rancher-selinux-0.2-1.el7.noarch

To verify the current version for Redhat based systems.

rpm -qa | grep rancher-selinux

The OS repository for installing / upgrading the package ( Example )

vi /etc/yum.repos.d/rancher.repo
[rancher]
name=Rancher
baseurl=https://rpm.rancher.io/rancher/production/centos/7/noarch
enabled=1
gpgcheck=1
gpgkey=https://rpm.rancher.io/public.key

yum -y install rancher-selinux

To upgrade if already installed the old version

yum update rancher-selinux

Cause

The package rancher-selinux-0.2-1.el7.noarch must be installed on all nodes if SELinux is enabled at OS level. The older rancher-selinux version are also not supported with kubernetes 1.22.x onwards.

Status

Top Issue

Additional Information

GH issue : https://github.com/rancher/rancher/issues/36509
Rancher documentation : here

Disclaimer

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